CN103189319B

CN103189319B - Ballast water treatment system and ballast water treatment method

Info

Publication number: CN103189319B
Application number: CN201180051038.6A
Authority: CN
Inventors: 山本宽; 永冈秀基; 山口典生; 枝川晶义; 远藤广之; 船越英典
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2010-10-22
Filing date: 2011-10-21
Publication date: 2015-06-24
Anticipated expiration: 2031-10-21
Also published as: KR20130135254A; CN103189319A

Abstract

Provided is a ballast water treatment system equipped with: a ballast water supply line (107) that connects a water intake port (104) and a ballast tank (103); an eradication treatment device (102) positioned on the line (107), for electrically or mechanically eradicating aquatic organisms in fluid taken from the water intake port (104); a chemical supply device (101) that is connected to the line (107), and supplies sodium hypochlorite to the line (107) in order to kill aquatic organisms in fluid taken from the water intake port (104). The chemical supply device (101) is connected to a second water intake port (114), which is different to the water intake port (104) to which the ballast water supply line (107) is connected, and produces sodium hypochlorite by electrolyzing fluid taken from the second water intake port (114).

Description

Ballast water treatment system and ballast water processing

Technical field

The present invention relates to a kind of ballast water treatment system and ballast water processing.

Background technology

In the boats and ships of oil tanker, large cargo ship etc. and so on, when navigating by water under the state that the loading capacity of unloaded oil, goods or oil, goods is few, in order to ensure stability and the balance of boats and ships, in ballast tank (ballast tank), usually hold water ballast navigate by water.This water ballast usually draws seawater etc. at the harbour of unloading and injects, and is discharged at the harbour of loading.Like this, the seawater at the harbour of use unloading etc. are as water ballast, and therefore include the hydrobiont etc. perched at the harbour periphery of unloading in water ballast, this hydrobiont is discharged together with water ballast at the harbour of loading.

In recent years, hydrobiological water ballast is comprised and the ecosystem disorder caused becomes problem in the world owing to discharging this.Therefore, International Maritime Organizaton (IMO) have passed Ballast Management treaty in 2004, wherein, had carried out strict regulation to the discharge benchmark of the biology inhabited in discharged water ballast.

As the treatment process of water ballast, propose various method.Specifically, there is following method etc.: by filter and centrifugation etc. remove hydrobiological method, physically/mechanically kill hydrobiological method, killed hydrobiological method by heating, by pharmaceutical chemicals being injected ballast tank or generation chlorine system material etc. and kill hydrobiological method (such as, patent documentation 1 and non-patent literature 1) and by the method for these Combination of Methods gained.

On the other hand, namely allow to get rid of the hydrobiont in water ballast, sometimes also can destroy the environment of harbour periphery according to the clorox concentration remained in draining.Therefore, propose following methods etc.: to add according to the clorox concentration etc. of water ballast when discharging reductive agent with in carrying out and; Placing water ballast makes the concentration of residual chlorine of water ballast be essentially zero (patent documentation 2).

Patent documentation 1: Japanese Unexamined Patent Application Publication 2007-515289 publication

Patent documentation 2: Japanese Patent No. 4262720 publication

Non-patent literature 1:Yukihiko OKAMOTO et al., JFE skill and technique No.25 (in February, 2010) are p.1-6

Summary of the invention

the problem that invention will solve

As mentioned above, owing to have passed Ballast Management treaty and the obligated ballast water treatment plant that arranges, the new technology that can process water ballast is therefore sought further.In patent documentation 1, propose and a kind of the method that electrolysis becomes extinct to make the hydrobiont of water ballast to produce clorox is carried out to water ballast.But, by means of only clorox, process is killed to the hydrobiont in water ballast and there is following problem: need a large amount of clorox, and need the large tank for storing clorox; In order to produce a large amount of clorox, need large electrolytic processing apparatus and a lot of amount of power.In addition, there is following problem: the generation of clorox and use the ballast water treatment of this clorox normally to carry out at the lay day that reaches port, and a lot of electric power can be needed for the taking and discharging etc. of handling goods, water ballast at the lay day that reaches port, when when carrying out these actions, electric power is not enough, the operation of handling goods, taking and discharging there will be fault, or makes further to break down in the navigation of boats and ships.Therefore, the invention provides a kind of electric power consumption that can reduce the lay day that reaches port and small-sized and be easy to be loaded in the new ballast water treatment system on boats and ships and ballast water processing.

for the scheme of dealing with problems

A mode of the present invention relates to a kind of ballast water treatment system, and this ballast water treatment system possesses: water ballast supply lines, and intake is connected with ballast tank by it; Kill and wound treatment unit, it is configured on above-mentioned water ballast supply lines, for killing and wounding process with electric or mechanical system to the hydrobiont in the liquid be taken into from above-mentioned intake; And chemicals feeder, it is connected with above-mentioned water ballast supply lines, to above-mentioned water ballast supply lines supply aqueous sodium hypochlorite solution, this aqueous sodium hypochlorite solution is used for killing process to the hydrobiont in the liquid be taken into from above-mentioned intake, wherein, above-mentioned chemicals feeder is connected with the second intake being different from the intake that above-mentioned water ballast supply lines is connected, and carries out electrolysis to produce clorox to the liquid be taken into from above-mentioned second intake.

Alternate manner of the present invention relates to a kind of ballast water processing, and the method comprises: kill and wound process with electric or mechanical system to the hydrobiont in the liquid be taken into from intake; To the liquid supply aqueous sodium hypochlorite solution be taken into from intake; And process carrying out above-mentioned killing and wounding and supply the fluid storage after giving above-mentioned aqueous sodium hypochlorite solution in ballast tank, the method also comprises: carry out electrolysis to the liquid for the manufacture of clorox at least comprising the liquid be taken into from the second intake being different from above-mentioned intake, manufacture above-mentioned aqueous sodium hypochlorite solution.

the effect of invention

According to the present invention, the electric power consumption of the lay day that reaches port can be reduced, and small-sized and be easy to be loaded on boats and ships.

Accompanying drawing explanation

Fig. 1 is the Sketch figure of an example of the ballast water treatment system represented in embodiment 1-1.

A ~ the C of Fig. 2 is the Sketch figure of an example of the structure representing chemicals feeder.

A ~ the D of Fig. 3 is the Sketch figure of an example of the structure representing electrical treating device.

Fig. 4 A is the schema of an example of the treatment process of the water ballast representing the lay day that reaches port.

Fig. 4 B is the schema of an example of the manufacture of the clorox representing unballast method and term of voyage.

Fig. 5 is the functional block diagram of the structure example representing water ballast Controlling System.

Fig. 6 represents the structure example of measurement section included by water ballast Controlling System and control part and is recorded in the functional block diagram of the data example in recording unit.

Fig. 7 is the Sketch figure of other example of the ballast water treatment system represented in embodiment 1-1.

Fig. 8 is the Sketch figure of another example of the ballast water treatment system represented in embodiment 1-1.

Fig. 9 is the Sketch figure of an example of the ballast water treatment system represented in embodiment 1-2.

Figure 10 is the Sketch figure of an example of the ballast water treatment system represented in embodiment 1-3.

Figure 11 A is the Sketch figure of an example of the ballast water treatment system represented in embodiment 1-4.

Figure 11 B is the Sketch figure of other example of the ballast water treatment system represented in embodiment 1-4.

A and B of Figure 12 is the Local map of the ballast water treatment system in embodiment 1-4.

Figure 13 is the Sketch figure of an example of the ballast water treatment system represented in embodiment 1-5.

Figure 14 is the Sketch figure of an example of the ballast water treatment system represented in embodiment 1-6.

Figure 15 is the Sketch figure of an example of the ballast water treatment system represented in embodiment 2-1.

Figure 16 is the Sketch figure of an example of the structure representing chemicals feeder.

Figure 17 is the functional block diagram of the structure example of the water ballast Controlling System represented in embodiment 2-2.

Figure 18 represents the structure example of measurement section and control part and is recorded in the functional block diagram of the data example in recording unit.

Figure 19 is the schema of an example of the ballast water processing represented in the ballast water treatment system of embodiment 2-1.

Figure 20 is the chart of an example of the extinction curve representing clorox.

Figure 21 represents an example of the structure of the attenuation measurement unit of clorox.

Figure 22 is the Sketch figure of an example of the ballast water treatment system represented in embodiment 2-3.

Figure 23 is the Sketch figure of an example of the ballast water treatment system represented in embodiment 3-1.

Figure 24 is the Sketch figure of an example of the ballast water treatment system represented in embodiment 4-1.

Embodiment

In this manual, " hydrobiont " comprises the microorganism inhabited in sea, rivers, lake etc., in addition, the hydrobiont etc. that yeast, the crustacean young equidimension such as the young, crab that is mould, the shellfish such as vegetalitas or animality planktonic organism, planktonic ovum or sporozoite, bacterium class, mushroom, virus, algae, spiral shell and bivalve are more small is also comprised.In addition, can also comprise can in the river mouth, rivers and creeks, canal etc. that connect with marine facies the microorganism that perches and above-mentioned hydrobiont.

In this manual, " be taken into from intake liquid (be also sometimes called simply " liquid ") obtained of fetching water " refer to and fetch water from outboard and to be stored in ballast tank the liquid being used as water ballast use, seawater, brackish water and fresh water can be comprised.Liquid both can be such as the liquid comprising sodium-chlor as seawater etc., also can be the liquid not comprising sodium-chlor.In addition, the region obtaining liquid is not particularly limited, and both can be saline waters, also can be fresh water, can also be brackish water territory.In this manual, " water ballast (バラスト water) " refers to the liquid be stored in ballast tank, can comprise to be stored in ballast tank from the liquid that intake is taken into.In addition, in this manual, the intake be connected with water ballast supply lines comprises sea chest (sea-chest).

In this manual, " boats and ships " refer to the general ship possessing ballast tank, such as, comprise container-ship, ferry, oil tanker, bulkcarrier (bulk carrier), chemical tanker, motor car carrier.

[first method]

As first method, the present invention relates to a kind of ballast water treatment system (hereinafter, also referred to as " the first ballast water treatment system of the present invention "), this ballast water treatment system possesses: water ballast supply lines, and intake is connected with ballast tank by it; Kill and wound treatment unit, it is configured on above-mentioned water ballast supply lines, for killing and wounding process with electric or mechanical system to the hydrobiont in the liquid be taken into from above-mentioned intake; And chemicals feeder, it is connected with above-mentioned water ballast supply lines, to above-mentioned water ballast supply lines supply aqueous sodium hypochlorite solution, this aqueous sodium hypochlorite solution is used for killing process to the hydrobiont in the liquid be taken into from above-mentioned intake, wherein, above-mentioned chemicals feeder is connected with the second intake being different from the intake that above-mentioned water ballast supply lines is connected, and carries out electrolysis to produce clorox to the liquid be taken into from above-mentioned second intake.

In boats and ships, due to the operation such as taking and discharging, handling goods of water ballast will be carried out, therefore can use a lot of electric power at the lay day that reaches port.The present invention is based on following opinion: as long as produce clorox at term of voyage, just can reduce the amount of power that the lay day that reaches port uses.

According to the present invention of first method, use electrically or mechanical system kill and wound treatment unit and these the two kinds of devices of chemicals feeder for supplying clorox process water ballast, therefore, it is possible to carry out scattering device in boats and ships, and the miniaturization of clorox generation device can be made, play the effect being easy to be loaded on boats and ships.According to the present invention of first method, by producing clorox at term of voyage, play the effect of the electric power consumption that can reduce the lay day that reaches port.

In first method, " hydrobiological electrically or mechanical system kill and wound process (hereinafter, also referred to as " kill and wound treatment unit ") " comprising: be separated, remove, destroy and/or kill that the liquid that is taken into from intake comprises is at least partially hydrobiological by means that are electric or mechanical system.Hydrobiological destruction comprises part or all destruction hydrobiological.Kill and wound treatment unit as electric or mechanical system, such as, can list electrolytic processing apparatus, centrifugal equipment for separating liquid from solid and utilize hydraulic pressure to produce shockwave the device etc. carrying out processing.As electrolytic processing apparatus, known electrolytic processing apparatus can be used.Electrolytic processing apparatus such as preferably possesses fixed-bed type electrode electrolyser.Fixed-bed type electrode electrolyser such as comprises the fixed bed of generation polarization and the power consumption pole for making polarization produce.Fixed-bed type electrode electrolyser both can be the unipolarity possessing a fixed bed, also can be the multipole possessing two or more fixed bed.As the voltage being applied to electrode, there are volts DS and voltage of alternating current, and preferably voltage of alternating current.Inter-electrode voltage is such as below 10V, below 5V, below 3V, and from the view point of reducing power consumption and can suppress to produce unwanted gas due to electrolysis, inter-electrode voltage is preferably 0.5 ~ 1.5V.When the voltage being applied to electrode is voltage of alternating current, more preferably, inter-electrode voltage is roughly 1.5V.When the voltage being applied to electrode is volts DS, more preferably, inter-electrode voltage is roughly 0.75V.Electrolytic processing apparatus both can be cross-flow (cross flow) mode, also can be dead end (dead-end) mode.The viewpoint of pressure loss can be reduced from the blocking prevented electrolytic processing apparatus, be preferably cross-current flow.Based on same viewpoint, electrolytic processing apparatus also can possess backwashing mechanism.As centrifugal equipment for separating liquid from solid, known centrifugal equipment for separating liquid from solid can be used, such as, can list wet cyclone etc.

In first method, " hydrobiological kill process " comprising: what the liquid obtain the water intaking as handling object and/or water ballast comprised hydrobiologically kills and wounds at least partially, sterilization or kill; And/or suppress hydrobiological propagation.Process is killed as hydrobiological, preferably comprising: the liquid obtained to water intaking and/or kill and wound the supply of the liquid after process aqueous sodium hypochlorite solution through electric or mechanical system, discharging benchmark to meet the water ballast shown in following table 1 when discharging water ballast; More preferably comprise: carrying out hydrobiologically killing and wounding, to kill and/or Inhibit proliferaton discharges benchmark to meet the water ballast shown in following table 1 when discharging water ballast.

[table 1]

In first method, " chemicals feeder " points to the fetch water liquid that obtains and/or the device killing and wounding the liquid supply aqueous sodium hypochlorite solution after process through electric or mechanical system.In first method, " be different from the second intake of the intake that water ballast supply lines connects " and refer to for being taken into liquid to be stored in the intake beyond the intake (such as sea chest) in ballast tank, such as, can list the existing intake etc. for tap water etc. on boats and ships.Chemicals feeder is connected with the second intake being different from the intake (such as sea chest etc.) that water ballast supply lines is connected.Therefore, chemicals feeder produces clorox by carrying out electrolysis to the liquid be taken into from the second intake, can manufacture aqueous sodium hypochlorite solution.Chemicals feeder is connected with the second intake, therefore without the need to driving ballast pump etc. just can fetch water, also can easily carry out the water intaking of liquid and the generation of clorox at term of voyage.The water intaking of liquid such as can use existing pump etc. to carry out.As existing pump, such as, can list the pump etc. for being taken into tap water, Clean-liquid etc.Usually, this pump can drive with less power consumption compared with ballast pump, therefore by using this existing pump, can be taken into liquid with few amount of power.

As long as chemicals feeder produces the device of clorox by electrolysis, such as, can list the mode possessing electrolyzer and storage tanks.By possessing storage tanks, storing the clorox of high density, being supplied to water ballast supply lines via pump, valve as required.Chemicals feeder also can possess thermostat unit.Control by utilizing the temperature of thermostat unit to the aqueous sodium hypochlorite solution in chemicals feeder, the hypochlorous decomposition be stored in the aqueous sodium hypochlorite solution of chemicals feeder can be suppressed, increase effective chlorine density further and reduce chloric acid concentration.As the temperature of the aqueous solution, from the view point of the hypochlorous decomposition of suppression, such as, be less than 20 DEG C, be preferably less than 15 DEG C, be more preferably roughly 10 DEG C.As thermostat unit, such as, refrigerating unit and the warming apparatuss etc. such as cooling unit can be listed.Preferably chemicals feeder possesses the time meter of the concentration can measuring clorox (hereinafter, referred to as " clorox densitometer " or be simply called " densitometer ".) and under meter with can grasp to water ballast supply lines supply clorox concentration, preferably use them to control the clorox concentration being supplied to water ballast supply lines.

Chemicals feeder also can possess sodium chloride storage tank.Such as, thus, even also can clorox be produced at the boats and ships of fresh water navigation.Even at the boats and ships of saline waters navigation, also can add by the seawater obtained to water intaking the aqueous sodium hypochlorite solution that sodium-chlor manufactures greater concn.Sodium-chlor both can be the aqueous solution, also can be solid-state.

Chemicals feeder is connected with water ballast supply lines, can to the liquid supply aqueous sodium hypochlorite solution be taken into from the intake being connected to water ballast supply lines.Link position (donor site of aqueous sodium hypochlorite solution) is not particularly limited, and such as, can list the intake that is connected to water ballast supply lines and kills and wounds between treatment unit and to kill and wound between treatment unit and ballast tank etc.

In one embodiment, the intake that chemicals feeder still can be connected with water ballast supply lines except being connected with above-mentioned second intake (such as, the intake for water ballast of sea chest etc.) be connected, or the intake replacing the second intake and be connected with water ballast supply lines is connected.By being connected with this two side of intake and the second intake for water ballast, efficiently the liquid for the manufacture of aqueous sodium hypochlorite solution can be taken into chemicals feeder.The intake being used for water ballast also can be possessed with the circuit that chemicals feeder carries out being connected the water pump being different from ballast pump.Thus, without the need to driving ballast pump just can be taken into liquid for the manufacture of aqueous sodium hypochlorite solution.In addition, in one embodiment, chemicals feeder still can be connected with ballast pump except being connected with above-mentioned second intake, or replaces the second intake and be connected with ballast pump.

In one embodiment, the first ballast water treatment system of the present invention also can possess the after-treatment device for carrying out disaggregating treatment to the clorox in water ballast when discharging water ballast.By possessing after-treatment device, even if the clorox concentration of water ballast exceedes the discharge also can carrying out rapidly water ballast when discharging benchmark when discharging water ballast, the usage quantity of reductive agent can also be reduced.As after-treatment device, as long as such as can by It dissociates or reduction, then be not particularly limited, and reduce the operating cost spent by ballast water treatment from the view point of the usage quantity reducing reductive agent, be preferably the device using and can decompose hypochlorous catalyzer.As catalyzer, such as, can list nickel, palladium.After-treatment device still can have the sorbent materials such as aluminum oxide except above-mentioned catalyzer.As long as after-treatment device is configured on the circuit that when discharging water ballast, water ballast passes through.Such as, can be configured on water ballast supply lines, or on water ballast supply lines, connect branched line and be configured on this circuit.Preferably after-treatment device is also used as the reducer feeding device for being reduced by aqueous sodium hypochlorite solution.

First ballast water treatment system of the present invention can possess Acidic Liquid storage tanks (Acidic Liquid feedway), and this Acidic Liquid storage tanks is used for the pH value of the liquid of supply aqueous sodium hypochlorite solution to control below hypochlorous pKa value.The pKa value of clorox is about 7.5.Therefore, before supply aqueous sodium hypochlorite solution, by the pH value of liquid being controlled to control to improve the hypochlorous ability of killing in the scope of pH value 5 ~ 6 below pKa value, preferably, thus the processing efficiency of the hydrobiological ability of killing can be improved.In addition, even the clorox of lower concentration also can carry out killing process fully, pipe arrangement, the addling of ballast tank can be reduced.As the Acidic Liquid be stored in Acidic Liquid storage tanks, such as, can list hydrochloric acid and sulfuric acid etc., high from the view point of acidity, be preferably hydrochloric acid.Acidic Liquid storage tanks is connected with water ballast supply lines, as long as be such as connected with water ballast supply lines by Acidic Liquid storage tanks in the mode that Acidic Liquid can be supplied to the liquid obtained of fetching water before supply aqueous sodium hypochlorite solution.

As alternate manner, the present invention relates to a kind of boats and ships using the water-filling method of the water ballast of the first ballast water treatment system of the present invention, possess the first ballast water treatment system of the present invention.

As another way, the present invention relates to a kind of ballast water processing (below, also referred to as " the first ballast water processing of the present invention "), the method comprises: kill and wound process with electric or mechanical system to the hydrobiont in the liquid be taken into from intake; To the liquid supply aqueous sodium hypochlorite solution be taken into from intake; And process carrying out above-mentioned killing and wounding and supply the fluid storage after giving above-mentioned aqueous sodium hypochlorite solution in ballast tank, the method also comprises: carry out electrolysis to the liquid for the manufacture of clorox at least comprising the liquid be taken into from the second intake being different from above-mentioned intake, manufacture above-mentioned aqueous sodium hypochlorite solution.

According to the first ballast water processing of the present invention, owing to carrying out electrically or the killing and wounding process and utilize the process of clorox of mechanical system, therefore the process that such as can easily kill and wound by means of only clorox is difficult to the shellfish fully killed and wounded, the crustacean young.According to the first ballast water processing of the present invention, be also easy to fetch water to chemicals feeder from outboard at term of voyage, thus play the effect that easily can manufacture aqueous sodium hypochlorite solution at term of voyage.First ballast water processing of the present invention can use the first ballast water treatment system of the present invention to carry out.

In the first ballast water processing of the present invention, the supply of aqueous sodium hypochlorite solution both can electric or mechanical system kill and wound process before or carry out after killing and wounding process, also can before treatment with process after these both sides all carry out.

In the first ballast water processing of the present invention, from the view point of the power consumption amount reducing the lay day that reaches port, preferably carry out the water intaking of the manufacture of aqueous sodium hypochlorite solution and/or the liquid for this manufacture at term of voyage, more preferably carry out this two side at term of voyage.Preferably the aqueous sodium hypochlorite solution of term of voyage manufacture is stored in chemicals feeder.Thereby, it is possible to reduce the power consumption amount of the lay day that reaches port, the supply of aqueous sodium hypochlorite solution promptly can also be started.Preferably while carry out controlling while carry out manufacture and the storage of aqueous sodium hypochlorite solution to temperature.By controlling temperature, the hypochlorous decomposition be stored in the aqueous sodium hypochlorite solution of chemicals feeder can be suppressed, increasing effective chlorine density further and reducing chloric acid concentration.

In the first ballast water processing of the present invention, the liquid for clorox manufacture also can comprise the liquid be taken into from the above-mentioned intake for being taken into the liquid being stored in ballast tank.

Below, illustrate that preferred implementation is to describe the present invention in detail.But the present invention is not limited to the embodiment illustrated below.

(embodiment 1-1)

Fig. 1 is the Sketch figure of the structure of the ballast water treatment system represented in embodiments of the present invention 1-1.

As shown in Figure 1, the ballast water treatment system of present embodiment 1-1 comprises chemicals feeder 101, kills and wounds treatment unit 102 and water ballast supply lines 107.The ballast water treatment system of 1-1 according to the present embodiment, use the chemicals feeder 101 of supply aqueous sodium hypochlorite solution and kill and wound treatment unit 102 and hydrobiont is processed, therefore, it is possible to utilize concentration to kill process lower than clorox in the past to hydrobiont, thus the corrosion etc. of pipe arrangement, ballast tank can be prevented.

Water ballast supply lines 107 is the circuits for the liquid be taken into from intake 104 being supplied to ballast tank 103, its one end be taken into the intake (sea chest) 104 of water ballast, strainer (strainer) 105 and ballast pump 106 and be connected, the other end is connected with ballast tank 103.Ballast tank 103 is split into multiple ballast tank 103a ~ 103d usually.

Kill and wound treatment unit 102 to be configured on water ballast supply lines 107, be configured between ballast pump 106 and ballast tank 103.Chemicals feeder 101 is connected with water ballast supply lines 107 via liquid supply lines 109, can supply aqueous sodium hypochlorite solution to the liquid processed through killing and wounding treatment unit 102.

Chemicals feeder 101 is connected with the second intake 114 being different from intake (sea chest) 104 via circuit 110.Thus, chemicals feeder 101 just can be taken into liquid for generation of clorox from outboard without the need to driving ballast pump 106.Water intaking circuit 110 also can possess the pump 116 for being taken into liquid and strainer 115.As the second intake 114 and pump 116, can use on boats and ships existing for tap water, for the intake of clean liquid etc. and pump etc. respectively.Liquid supply lines 109 also can possess pump for sending from aqueous sodium hypochlorite solution to water ballast supply lines 107 and the valve M for the feed rate that controls aqueous sodium hypochlorite solution.In addition, also can the pump be configured on liquid supply lines 109 be replaced to send aqueous sodium hypochlorite solution to water ballast supply lines 107 with the pump (not shown) being built in chemicals feeder 101.In addition, liquid supply lines 109 also can such as possess clorox densitometer and under meter, to measure the feed rate to the clorox that water ballast supply lines 107 supplies.As under meter, such as, preferably can measure the flow quantity recorder FM of total flux, instantaneous delivery.

As chemicals feeder 101, such as, can use the chemicals feeder 201 of the mode shown in A of Fig. 2.The A of Fig. 2 is that represent can by carrying out the Sketch figure that electrolysis produces an example of the structure of the device of clorox to liquid.As shown in the A of Fig. 2, chemicals feeder 201 possesses the storage tanks 211 for storing aqueous sodium hypochlorite solution and the electrolyzer 212 for being produced clorox by electrolysis treatment.Storage tanks 211 is connected with circuit 110,109, can be taken into liquid for generation of clorox, and by circuit 109, stored aqueous sodium hypochlorite solution can be supplied to water ballast supply lines 107 by circuit 110 from outboard.Storage tanks 211 is connected by circuit 213,214 with electrolyzer 212, and the clorox produced in electrolyzer 212 is stored in storage tanks 211 by circuit 214.From the view point of generation and storage clorox, preferably can be circulated by circuit 213 and circuit 214 between storage tanks 211 and electrolyzer 212.Circuit 213 and/or circuit 214 also can possess the pump for liquor charging.Circuit 213 possesses heat exchanger 215 and the cooling unit (chiller unit) 216 of the temperature for controlling aqueous sodium hypochlorite solution.

Preferably storage tanks 211 possesses lagging material, to control to stored aqueous sodium hypochlorite solution and/or for the manufacture of the temperature of the liquid of this aqueous solution.

Preferably storage tanks 211 possesses clorox densitometer.Thus, clorox concentration in storage tanks 211 can be managed, and can come according to the clorox concentration in storage tanks 211 such as to control the generation of clorox, the amount of liquid supplied to storage tanks 211, the amount etc. of liquid that is transported to electrolyzer 212.

Storage tanks 211 and electrolyzer 212 also can possess gas blower 217 for discharging produced gas (particularly hydrogen) and relief outlet 218.

Except the circuit 110 be connected with the second intake 116, chemicals feeder 101 also can possess the circuit (not shown) that can be taken into the liquid obtained of being fetched water by ballast pump 106.By being connected with ballast pump 106, the liquid for the manufacture of aqueous sodium hypochlorite solution can be taken into efficiently.

As other example of chemicals feeder 101, such as, can list the mode shown in B and C of Fig. 2.B and C of Fig. 2 represents the Sketch figure that can be produced other example of the structure of the device of clorox by electrolysis.The chemicals feeder 201 of the mode shown in the B of Fig. 2 possesses the electrolyzer 212 be connected with circuit 110 and the storage tanks 211 be connected with circuit 109, and electrolyzer 212 is connected by circuit 213 with storage tanks 211.Liquid for generation of clorox is taken into electrolyzer 211 by circuit 110 from outboard by the chemicals feeder 201 of the manner, in this electrolyzer 211, produce clorox.The aqueous sodium hypochlorite solution produced is supplied to by circuit 213 and is stored in storage tanks 211, is supplied to water ballast supply lines 107 as required by circuit 109.Circuit 110 also can possess heat exchanger (not shown) and the cooling unit (not shown) of the temperature for controlling aqueous sodium hypochlorite solution.

In the B of Fig. 2, show the example that storage tanks 211 is connected by circuit 213 with electrolyzer 212, but the chemicals feeder of the manner 201 is not limited thereto, such as also can possess and can, from storage tanks 211 to the circuit of electrolyzer 212 feeding liquid, can make to circulate between storage tanks 211 and electrolyzer 212 by this circuit and circuit 213.

The chemicals feeder 201 of the mode shown in the C of Fig. 2 also can be the device only possessing a treatment trough 219.Treatment trough 219 produces clorox by electrolysis treatment, and stores aqueous sodium hypochlorite solution.By the function making treatment trough 219 have storage tanks and electrolyzer concurrently, such as, can make chemicals feeder 201 miniaturization further.

Killing and wounding treatment unit 102 is devices for killing and wounding process to hydrobiont in electric or mechanical mode.As killing and wounding treatment unit 102, such as, can use the electrical treating device of the mode shown in A ~ D of Fig. 3.A ~ the D of Fig. 3 is the Sketch figure of an example of the structure representing fixed-bed type electrode electrolyser, the A of Fig. 3 represents the example being configured in the unipolarity fixed-bed type electrode electrolyser on water ballast supply lines 107 with cross-current flow, B and C of Fig. 3 represents that the example being configured in the bipolar packed bed cell type electrode electrolyser on water ballast supply lines 107 with cross-current flow, the D of Fig. 3 represent the example being configured in the bipolar packed bed cell type electrode electrolyser on water ballast supply lines 107 with dead-end system.In the A ~ D of Fig. 3, the mark same to identical textural element additional phase.

As shown in the A of Fig. 3, unipolarity fixed-bed type electrode electrolyser possesses electrolyzer main body 302, fixed-bed type electrode 311, power consumption pole 312 and power supply 313, is configured on water ballast supply lines 107 relative to the mode that the face of fixed-bed type electrode 311 is horizontal direction (tangential direction) to make the flowing of liquid (the black arrow of the A of Fig. 3).By with cross-current flow configuration fixed-bed type electrode electrolyser, easily can remove the dirt of the face of fixed-bed type electrode 311, thus can pressure loss be suppressed.When the liquid be taken into from intake 104 is supplied to fixed-bed type electrode electrolyser, the liquid supplied is along the direction vertical relative to the face of fixed-bed type electrode 311 flowing (hollow arrow of the A of Fig. 3).When the hydrobiont in liquid is contacted with fixed-bed type electrode 311 by liquid-flow, the exchange of electronics is there is between the surface of fixed-bed type electrode 311 and hydrobiological cell, hydrobiological activity can be weakened, or hydrobiont of can destroying or become extinct, or damage a hydrobiological part.The face of fixed-bed type electrode 311 have accumulated retentate, dirt, can clean it by opening the valve be configured on circuit 303, coming easily they to be removed.One end of circuit 303 is connected to outboard, and the residue removed is discharged to outboard.

As the material of fixed-bed type electrode 311, as long as the material of the penetration by liquid be taken into from intake 104 can be made, such as, can list porous material, carbonaceous material and metallic substance, material etc. that these materials are applied by precious metal.As carbonaceous material, such as, can list gac, graphite and carbon fiber etc.As metallic substance, such as, can list nickel, copper, stainless steel, SUS (stainless steel), iron and titanium etc.Wherein, as the material of fixed-bed type electrode 311, from intensity and etch-proof viewpoint, preferred SUS and titanium.The shape forming fixed-bed type electrode 311 is not particularly limited, such as, can list ball, grain, fiber, felt (felt), weave cotton cloth and porous block etc.The perforate footpath of fixed-bed type electrode 311 is such as more than or equal to 100 μm.As the material of power consumption pole 312, such as, be preferably titanium.As the shape of power consumption pole 312, such as, can list flat board, wire netting (expandedmetal) and abacus etc.Power supply 313 both can be direct supply also can be AC power, is preferably AC power.

As shown in the B of Fig. 3, bipolar packed bed cell type electrode electrolyser comprise electrolyzer main body 302, power consumption pole wire connecting portion 314,315, fixed bed 316, separator 317 and power supply 313.Fixed bed 316 is configured between power consumption pole wire connecting portion 314,315, and separator 317 is individually configured between power consumption pole wire connecting portion 314 and fixed bed 316, between fixed bed 316 and between fixed bed 316 and power consumption pole wire connecting portion 315.AC power is used as power supply 313, when being energized to power consumption pole wire connecting portion 314,315, wire connecting portion 314 side, power consumption pole of each fixed bed 316 and the face of wire connecting portion 315 side, power consumption pole are alternately changed earth polar and are changed into positive and negative, and the face of each fixed bed 316 forms porous anode and porous cathode.By using multipole fixed electrode electrolyser like this, the quantity of configuration fixed bed 316 in a cell increases, therefore, it is possible to the number of times making hydrobiont contact with fixed bed 316 increases, thus can improve processing efficiency.

The bipolar packed bed cell type electrode electrolyser of the C of Fig. 3 is except configuring a fixed bed 316, and other is identical with the structure of Fig. 3 B.

The bipolar packed bed cell type electrode electrolyser of the D of Fig. 3 is except replacing cross-current flow to be configured and to configure except three fixed beds 316 with dead-end system, and other is identical with the structure of Fig. 3 B.

On water ballast supply lines 107, preferably liquid supply lines 109 connection section and kill and wound between treatment unit 102 and be such as configured with valve (not shown).Thereby, it is possible to based on being configured at ballast pump 106 and the observed value killed and wounded in the under meter FM (not shown) between treatment unit 102 controls the amount of the liquid (water ballast) being injected into ballast tank 103.From the view point of being easy to control the injection rate to ballast tank 103, valve is preferably motorized valve.

An embodiment of the ballast water treatment of the ballast water treatment system using present embodiment 1-1 is described based on Fig. 4 A and Fig. 4 B.

First, as shown in Figure 4 A, when navigation terminates (S401) and reaches port, to break bulk (S402).In addition, start being taken into and processing (S403) of water ballast, start ballast pump 106, kill and wound the pump (S404) of the liquid supply lines 109 for the treatment of unit 102 and chemicals feeder 101.Thus, start to be taken into liquid by intake 104 and water ballast is processed.The liquid be taken into by intake 104 is fed into and kills and wounds treatment unit 102 after removed large rubbish etc. by strainer 105, and that carries out that liquid comprises hydrobiologically kills and wounds process.Killing and wounding in treatment unit 102, by carrying out electrically or the process of mechanical system, being separated, removing, destroying and/or killing the larger hydrobiont of fetching water in hydrobiont that the liquid that obtains comprises.Then, from chemicals feeder 101 to through killing and wounding the liquid supply aqueous sodium hypochlorite solution that treatment unit 102 processed, clorox is utilized to kill process to hydrobiont.The liquid comprising clorox is fed into ballast tank 103 by water ballast supply lines 107.Clorox concentration in the aqueous sodium hypochlorite solution supplied such as is more than or equal to 5000ppm, and its pH value is such as 8 ~ 9.Control the injection rate of water ballast and/or the feed rate of clorox while carry out the process (S405) of this water ballast.If be filled with the water ballast of specified amount in ballast tank 103, and the concentration of the clorox in ballast tank 103 is controlled the concentration (S406) for regulation, then terminate being taken into and processing (S407) of water ballast, stop ballast pump 106, kill and wound the pump (S408) of the liquid supply lines 109 for the treatment of unit 102 and chemicals feeder 101.Supplying aqueous sodium hypochlorite solution to kill by killing and wounding after treatment unit 102 has carried out killing and wounding process, the hydrobiont that the water ballast in the liquid and/or ballast tank that can obtain fetching water efficiently thus comprises kills process.

Then, as shown in Figure 4 B, when navigation terminates and reaches port, start unballast (deballast) (S411), start ballast pump 106 and densitometer (S412).Thus, start overboard to discharge water ballast from ballast tank 103.Water ballast imports water ballast supply lines 107 from ballast tank 103.The densitometer be configured on water ballast supply lines 107 is utilized to measure the clorox concentration (S413) of discharged water ballast.Whether the clorox concentration measured by judgement meets is discharged benchmark (S414), when clorox concentration is lower than 0.2ppm, thinks to meet and discharge benchmark and be released to marine (unballast) (S415) via intake 104.When clorox concentration is more than or equal to 0.2ppm, adds neutralizing agent (S416), again carry out measurement (S413) and the above-mentioned judgement (S414) of the concentration of clorox.If all discharged by the water ballast in ballast tank 103, then terminate unballast, stop densitometer and ballast pump 106 (S417).

(S421) is left the port at the end of unballast and loading.At term of voyage, liquid is taken into chemicals feeder 101 by the second intake 114 by ejector priming 116.In addition, also can start ballast pump 106 together with the startup of pump 116, by sea chest, liquid is taken into chemicals feeder 101.Start-up temperature control unit (S422), controls the optimum temps for suppressing hypochlorous decomposition by the temperature of the liquid for generation of clorox.If by the fluid storage of amount of regulation to storage tanks 211, then stopping pump 116 (S423).Now, preferably, temperature control unit does not stop and carrying out frequency conversion running (インバータ ?translocation).Coordinate hours underway (reaching port the time) rectifier, pump and the gas blower etc. started in chemicals feeder 101 to start the electrolysis of liquid, thus generation clorox manufacture aqueous sodium hypochlorite solution (S424).If the concentration being stored in the clorox in storage tanks 211 becomes be more than or equal to normality, such as 5000ppm (S425), then terminate the generation (S426) of clorox.Manufactured aqueous sodium hypochlorite solution is stored in chemicals feeder 101 in advance.The pH value of stored aqueous sodium hypochlorite solution is such as 8 ~ 9.Preferably, after having manufactured aqueous sodium hypochlorite solution, temperature control unit has also been made to operate and not stop, until supply aqueous sodium hypochlorite solution.

Such as can control the manufacture of the aqueous sodium hypochlorite solution in chemicals feeder 101 and the supply of aqueous sodium hypochlorite solution by water ballast Controlling System as shown in Figure 5.Fig. 5 is the functional block diagram of an example of the structure representing water ballast Controlling System.The water ballast Controlling System of Fig. 5 possesses: measurement section 501, and it comprises the densitometer etc. on water ballast supply lines 107; Recording unit 502, it records the clorox concentration measured by measurement section 501; And control part 503, it is based on the concentration data of recording unit 502, the increase and decrease etc. of injection rate of the water ballast decide the feed rate of the clorox supplied from chemicals feeder 101, injecting to ballast tank 103, controls the injection rate etc. of the clorox amount supplied from liquid supply lines 109 to ballast tank 103, water ballast.

Measurement section 501 also can be configured to the structure as shown in the measurement section 601 of Fig. 6.Namely, except the clorox densitometer on water ballast supply lines 107, measurement section 501 can also comprise clorox densitometer, the clorox densitometer of unballast circuit, the clorox densitometer of discharge ends of the storage tanks 211 of one or more chemicals feeder 101.Measuring result in measurement section 501 can be recorded in recording unit 502.

Recording unit 502 can record the one or more data as shown in the recording unit 602 of Fig. 6.Namely, the clorox concentration stored by storage tanks 211 measured by measurement section 601 can be comprised, the ballast time (ballast water treatment time), be contained in the ballast water capacity of ballast tank 103, aeronautical data (time till being preferably at least included in draining), the feed rate of aqueous sodium hypochlorite solution, the clorox concentration of the liquid in the water ballast supply lines 107 after supply aqueous sodium hypochlorite solution, unballast time and release carrying capacity, the clorox concentration of the water ballast after after-treatment device process, the feed rate of reductive agent, and the clorox concentration after supply reductive agent.Recording unit 602 can also record the clorox concentration range that should maintain in ballast tank 103 in advance.

Control part 503 can be configured to the structure as shown in the control part 603 of Fig. 6.That is, control part 603 can comprise analysis portion 611, clorox produces control part 612 and feed rate control part 613.Analysis portion 611 is such as based on the clorox amount etc. that recording unit 602 recorded data decides the feed rate of the aqueous sodium hypochlorite solution that will be supplied to water ballast supply lines 107, the feed rate of reductive agent and will produce in chemicals feeder 101.Clorox produces control part 612 and such as controls the clorox amount etc. produced in chemicals feeder 101 based on above-mentioned decision.Feed rate control part 613 such as controls the clorox amount etc. supplied from chemicals feeder 101 to ballast tank 103 based on above-mentioned decision.

In present embodiment 1-1, to be illustrated to the mode of killing and wounding the liquid between treatment unit 102 and ballast tank 103, that is through killing and wounding treatment unit 102 processed and supply aqueous sodium hypochlorite solution by chemicals feeder 101, but the present invention is not restricted to this.Such as, also can be following mode: as shown in Figure 7, liquid supply lines 109 be connected to ballast pump 106 and kills and wounds between treatment unit 102, to killing and wounding liquid before treatment supply aqueous sodium hypochlorite solution.In addition, also can be following mode: as shown in Figure 8, chemicals feeder 101 possesses the liquid supply lines 109 that is connected to and kills and wounds between treatment unit 102 and ballast tank 103 and is connected to ballast pump 106 and kills and wounds the second liquid supply lines 809 between treatment unit 102, to before killing and wounding process and kill and wound the liquid after process and supply aqueous sodium hypochlorite solution respectively.

(embodiment 1-2)

Fig. 9 is the Sketch figure of the structure of the ballast water treatment system represented in embodiments of the present invention 1-2.In fig .9, same to the textural element additional phase identical with Fig. 1 mark.

The ballast water treatment system of present embodiment 1-2 possesses after-treatment device 901, for the water ballast in ballast tank 103 being supplied to the circuit 902 of after-treatment device 901, being used for carrying out water ballast pumping-out line (unballast circuit) 903 and the reducer feeding device (reductive agent hold-up vessel) 904 of unballast, in addition, identical with the structure of the ballast water treatment system of embodiment 1-1.The ballast water treatment system of 1-2 according to the present embodiment, owing to possessing after-treatment device 901, therefore, it is possible to reduce the usage quantity of reductive agent.

Its one end of circuit 902 is connected with water ballast supply lines 107, and the other end is connected with after-treatment device 901, can be supplied the water ballast in ballast tank 103 by water ballast supply lines 107 to after-treatment device 901.

After-treatment device 901 carries out when discharging water ballast for making the clorox concentration of water ballast be the device of the process of the usage quantity of discharging below benchmark and/or reducing reductive agent.

Reducer feeding device 904 was for also originally making clorox concentration for discharging below benchmark by the clorox of discharged water ballast.Reducer feeding device 904 is connected with pumping-out line 903, can to the discharge water ballast supply reductive agent processed through after-treatment device 901.As reductive agent, Sulfothiorine, S-WAT etc. can be listed.

Pumping-out line 903 also can possess the device such as clorox densitometer and microorganism checking device, this clorox densitometer is for measuring the clorox concentration of discharged water ballast, and this microorganism checking device is for measuring the raw cell count of the hydrobiont (particularly microorganism) comprised in discharged water ballast.Preferably as shown in Figure 9 clorox densitometer is at least configured between after-treatment device 901 and ballast pump 106 and the discharge ends of pumping-out line 903 (near the relief outlet of water ballast).

The embodiment of process of water ballast when using the ballast water treatment system of present embodiment 1-2 to discharge water ballast is described.

Ballast pump 106 is driven to start to discharge water ballast from ballast tank 103.Water ballast in ballast tank 103 is supplied to after-treatment device 901 via water ballast supply lines 107 and circuit 902.The water ballast carrying out the disaggregating treatment of clorox in after-treatment device 901 is supplied to via pumping-out line 903 and kills and wounds treatment unit 102 and be discharged to outboard.Now, also can process killing and wounding in treatment unit 102 in discharged water ballast the hydrobiont comprised.

In addition, in present embodiment 1-2, for pumping-out line 903 with kill and wound the mode that treatment unit 102 is connected and be illustrated, but the present invention is not limited thereto.Such as, pumping-out line 903 also can not be connected with killing and wounding treatment unit 102.That is, also can be the mode of not discharging water ballast via killing and wounding treatment unit 102.

(embodiment 1-3)

Figure 10 is the Sketch figure of the structure of the ballast water treatment system represented in embodiments of the present invention 1-3.In Fig. 10, same to the textural element additional phase identical with Fig. 1 mark.

The pH value that the ballast water treatment system of present embodiment 1-3 possesses for the liquid by supply aqueous sodium hypochlorite solution controls at the following Acidic Liquid storage tanks 1001 of the pKa value of clorox, and water ballast supply lines 107 possesses pH value meter, identical with the structure of the ballast water treatment system of embodiment 1-1 in addition.

The pH value of the liquid of supply clorox, by possessing Acidic Liquid storage tanks 1001, can control, in the scope of hypochlorous kill capability the best, carry out the supply of clorox in this condition and kill and wound process by the ballast water treatment system of present embodiment 1-3.Therefore, it is possible to improve clorox to the hydrobiological processing efficiency killing process.As optimal ph, such as, be 4 ~ 6, be preferably roughly 5.

(embodiment 1-4)

Figure 11 A is the Sketch figure of the structure of the ballast water treatment system represented in embodiments of the present invention 1-4.In Figure 11 A, the mark same to the textural element additional phase identical with Fig. 1.

Ballast water treatment system in present embodiment 1-4 possesses water ballast supply lines 107, the chamber (chamber) 1101 be configured on water ballast supply lines 107, the electricity that is configured in the relief outlet of chamber kill and wound treatment unit 102 and the chemicals feeder 101 for aqueous sodium hypochlorite solution being supplied to water ballast supply lines 107.The ballast water treatment system of 1-4 according to the present embodiment, temporarily can be stored in the water ballast be taken into from intake 104 in chamber 1101 and be supplied to electricity and kill and wound treatment unit 102.Therefore, it is possible to make to be supplied to electricity, to kill and wound the flow velocity of the water ballast for the treatment of unit 102 roughly fixing, thus can increase hydrobiont in water ballast and electricity and kill and wound number of times that treatment unit 102 (particularly fixed bed) contacts and improve and kill and wound processing efficiency.The ballast water treatment system of present embodiment 1-4 possesses chamber 1101, and electricity kills and wounds the relief outlet that treatment unit 102 is configured in chamber 1101, identical with the structure of the ballast water treatment system of embodiment 1-1 in addition.

The ballast water treatment system of present embodiment 1-4 is such as used to carry out the process of water ballast as follows.First, the water ballast be taken into is imported in chamber 1101 by water ballast supply lines 107, be supplied to electricity by the relief outlet of chamber 1101 afterwards and kill and wound treatment unit 102 from intake 104.This electricity kill and wound in treatment unit 102 carry out electric means kill and wound process.Kill and wound after the water ballast after process is directed to water ballast supply lines 107, supply aqueous sodium hypochlorite solution from chemicals feeder 101, then, be stored in ballast tank 103 by water ballast supply lines 107.

The diameter of chamber 1101 is preferably greater than the caliber of water ballast supply lines 107, more preferably from the connection section of water ballast supply lines 107 be that taper becomes large to the inside of chamber 1101.According to this structure, the flow velocity of the water ballast in chamber 1101 can be made to be slower than flow velocity in water ballast supply lines 107 further.Increase further therefore, it is possible to make the hydrobiont in water ballast and electricity kill and wound the number of times that treatment unit 102 contacts.Preferably the relief outlet of chamber 1101 is formed in bottom chamber 1101.According to this structure, treatment unit 102 can be killed and wounded by electricity and the water ballast of discharging bottom chamber 1101 is processed.When the flow velocity in chamber 1101 is slack-off, the hydrobiont in water ballast is trapped in the bottom of chamber 1101 due to the difference in specific gravity with water ballast, increases further therefore, it is possible to make hydrobiont and electricity kill and wound the number of times that treatment unit 102 contacts.

Water ballast supply lines 107 still can possess strainer (filter).The Sketch figure representing other example of the structure of the ballast water treatment system in present embodiment 1-4 has been shown in Figure 11 B.In Figure 11 B, the mark same to the textural element additional phase identical with Figure 11 A.According to the ballast water treatment system of first method, by possessing strainer 1102, such as can catch the planktonic organism class that will be supplied in the water ballast of ballast tank, kill and wound through electricity treatment unit 102 kill and wound process after the hydrobiological dead bones of the body etc.

In Figure 11 B, show the mode be configured at by strainer 1102 and between the connection section of chemicals feeder 101 and ballast tank 103, but the present invention is not limited thereto, such as, also can be configured at and kill and wound between treatment unit 102 and ballast tank 103.The quantity of strainer 1102 is not particularly limited, and both can be one, also can be two or more.When configuring plural strainer, such as, also as shown in Figure 11 B, water ballast supply lines 107 branch can be made and respectively configure a strainer on each branch road.As strainer 1102, be not particularly limited, such as, aperture can be used to be the strainer of 10 μm ~ 200 μm.

The Local map representing a part for the ballast water treatment system of present embodiment 1-4 has been shown in Figure 12.A with B of Figure 12 will take out killing and wounding the part (with the part of enclosed with dashed lines in Figure 11 A) that treatment unit 102 is connected with chemicals feeder 101 figure represented in water ballast supply lines 107, represents an example of the mode by killing and wounding the part that treatment unit 102 is connected with chemicals feeder 101.Such as both can for having bent to the bend of crank-like as shown in the A of Figure 12 by killing and wounding part that treatment unit 102 is connected with chemicals feeder 101, also can as shown in figure 12b for forming to chemicals feeder 101 rake slowly gone up a slope from killing and wounding treatment unit 102.When water ballast supply lines 107 has bend, preferably chemicals feeder 101 is configured near the upper end of bend as shown in the A of Figure 12.When water ballast supply lines 107 has rake, preferably chemicals feeder 101 is configured near the upper end of rake as shown in figure 12b.According to these modes, such as, the aqueous sodium hypochlorite solution supplied from chemicals feeder 101 can be supplied to and kill and wound treatment unit 102.Thereby, it is possible to utilize clorox to carry out germicidal treatment to residuing in the liquid killing and wounding treatment unit 102.Such as, as long as the gradient of the rake gradient slowly, is not particularly limited, is more than or equal to 1/200, be preferably greater than or equal to 1/100 and be less than or equal to 1/50.Rake also can configure valve.Thereby, it is possible to control being supplied to the aqueous sodium hypochlorite solution amount of killing and wounding treatment unit 102.

In present embodiment 1-4, the order that the supply of aqueous sodium hypochlorite solution and electricity kill and wound treatment unit is not particularly limited, and also can supply aqueous sodium hypochlorite solution before carrying out electricity to kill and wound the process for the treatment of unit.

(embodiment 1-5)

Figure 13 is the Sketch figure of the structure of the ballast water treatment system represented in embodiments of the present invention 1-5.In fig. 13, same to the textural element additional phase identical with Fig. 1 mark.

Ballast water treatment system in present embodiment 1-5 possess water ballast supply lines 107, for aqueous sodium hypochlorite solution is supplied to water ballast supply lines 107 chemicals feeder 101, be configured in chamber 1301 on water ballast supply lines 107 and electricity kills and wounds treatment unit 1302, electricity kills and wounds treatment unit 1302 and is configured in chamber 1301.The ballast water treatment system of 1-5 according to the present embodiment, be configured in chamber 1301 because electricity kills and wounds treatment unit 1302, kill and wound treatment unit 1302 carry out killing and wounding process therefore, it is possible to the water ballast imported from water ballast supply lines 107 to be stored in cause electricity in chamber 1301.Thereby, it is possible to make the flow velocity of water ballast be slower than flow velocity in water ballast supply lines 107, thus the hydrobiont in water ballast and electricity can be made to kill and wound, and number of times that treatment unit 1302 contacts increases.The ballast water treatment system of present embodiment 1-5 will kill and wound treatment unit 1302 and be configured in chamber 1301, identical with the structure of the ballast water treatment system of embodiment 1-1 in addition.

The ballast water treatment system of present embodiment 1-5 is such as used to carry out the process of water ballast as follows.First, import in chamber 1301 by the water ballast be taken into from intake 104 by water ballast supply lines 107, that in this chamber 1301, carries out electric means to the hydrobiont in water ballast kills and wounds process.Preferably electricity kills and wounds treatment unit 1302 and is configured near bottom part that in chamber 1301, flow velocity is slow, such as chamber 1301.When flow velocity is slack-off, the hydrobiont in water ballast is trapped in this part due to the difference in specific gravity with water ballast, increases further therefore, it is possible to make hydrobiont and electricity kill and wound the number of times that treatment unit 1302 contacts.Then, the liquid processed is directed to water ballast supply lines 107 from chamber 1301, after supplying aqueous sodium hypochlorite solution from chemicals feeder 101, is directed to ballast tank 103.

Preferably the relief outlet of chamber 1301 is formed in the top of chamber 1301.Thereby, it is possible to reduce the hydrobiont amount imported in the liquid of water ballast supply lines 107 further.Preferably the relief outlet of chamber 1301 is formed in the position lower than the introducing port of chamber 1301.In addition, preferably the diameter of the relief outlet of chamber 1301 is greater than the diameter of introducing port.According to these structures, the flow velocity of the water ballast in chamber 1301 can be made to be slower than flow velocity in water ballast supply lines 107 further, thus the hydrobiont in water ballast and electricity are killed and wounded, and number of times that treatment unit 1302 contacts increase further.In chamber 1301, the diameter of relief outlet and the diameter ratio (relief outlet: introducing port) of introducing port are not particularly limited, such as, can be 1:1.2 ~ 1.5.In addition, the diameter of the circuit be preferably connected with relief outlet becomes large from chamber 1301 gradually to chemicals feeder 101.Thereby, it is possible to suppress the rising of pressure loss.

Chamber 1301 still can possess the rectification elements such as traverse baffle (baffle).Thereby, it is possible to easily make the flow velocity in chamber 1301 fix.In addition, rectification element preferred disposition kills and wounds the top for the treatment of unit 1302 in electricity.According to this structure, the more hydrobionts in water ballast can be gathered in electricity and kill and wound treatment unit 1302 side, thus the frequency of exposure killing and wounding treatment unit 1302 with electricity can be made to increase further to improve and kill and wound processing efficiency.

The bottom of chamber 1301 also can be connected with the circuit (not shown) that one end is connected with outboard or pumping-out line.Outboard can be discharged to by being accumulated in the retentate, rubbish etc. that chamber 1301 and/or electricity kill and wound in treatment unit 1302 by this circuit.

In water ballast supply lines 107, to part that treatment unit 102 and chemicals feeder 101 connect be killed and wounded in the same manner as embodiment 1-4, both can, for bending to the bend of crank-like, also can be form to chemicals feeder 101 rake slowly gone up a slope from killing and wounding treatment unit 102.According to these modes, such as, the aqueous sodium hypochlorite solution supplied from chemicals feeder 101 can be supplied to the chamber 1301 being configured with and killing and wounding treatment unit 102.Thereby, it is possible to utilize clorox to carry out germicidal treatment to the liquid residued in chamber 1301.

In present embodiment 1-5, the order that supply and the electricity of aqueous sodium hypochlorite solution kill and wound the process for the treatment of unit is not specially limited in this order, also can supply aqueous sodium hypochlorite solution before carrying out electricity to kill and wound the process for the treatment of unit.

(embodiment 1-6)

Figure 14 is the Sketch figure of the structure of the ballast water treatment system represented in embodiments of the present invention 1-6.In fig. 14, same to the textural element additional phase identical with Figure 13 mark.

Ballast water treatment system in present embodiment 1-6 possesses water ballast supply lines 107, for aqueous sodium hypochlorite solution being supplied to the chemicals feeder 101 of water ballast supply lines, be configured in chamber 1301 on water ballast supply lines 107 and the electricity be configured in chamber 1301 kills and wounds treatment unit 1302, chemicals feeder 101 has the water intaking circuit 1410 for being taken into the liquid that clorox produces, the intake 104 that water intaking circuit 1410 is connected with water ballast supply lines is connected, and possess the water pump 116 being different from water ballast water pump 106 (such as ballast pump).In the ballast water treatment system of present embodiment 1-6, chemicals feeder 101 has the water intaking circuit 1410 be connected with intake (sea chest) 104, water intaking circuit 1310 possesses the water pump 116 being different from ballast pump 106, identical with the structure of the ballast water treatment system of embodiment 1-5 in addition.

The ballast water treatment system of 1-6 according to the present embodiment, owing to possessing the water pump 116 being different from ballast pump 106, therefore without the need to driving ballast pump 106 grade just can fetch water.Therefore, even if such as also can easily carry out the water intaking of liquid and the generation of clorox at term of voyage.

[second method]

As another way, the present invention relates to a kind of control method (hereinafter also referred to " control method of water ballast of the present invention ") of water ballast, the method comprises: at the water ballast supply lines possessed for the liquid be taken into from intake being supplied to ballast tank and be supplied in the ballast water treatment system of the chemicals feeder of above-mentioned water ballast supply lines by the aqueous sodium hypochlorite solution being used for carrying out the water microorganisms in aforesaid liquid germicidal treatment, sample to supplying the liquid given in the above-mentioned water ballast supply lines after the clorox of specified amount from above-mentioned chemicals feeder, the decay of the clorox concentration in the sample obtained sampling is measured, the feed rate of the clorox supplied to above-mentioned water ballast supply lines from above-mentioned chemicals feeder is regulated based on this take off data.

Second method the present invention is based on following opinion: the degree for clorox its decay according to the liquid of the handling object water microorganisms in water ballast being carried out to germicidal treatment is different, that is, the decay of clorox is such as subject to fetching water the impact of the microorganism in the seawater that obtains, organic kind and amount.And, the present invention is based on following opinion: if use the liquid of fetching water and obtaining to measure the decay of clorox, and use this attenuation data to control the feed rate of clorox, then can more correctly control water filling complete after ballast tank in the clorox concentration of water ballast.

As mentioned above, owing to have passed Ballast Management treaty and the obligated ballast water treatment plant that arranges, the new technology that can process water ballast is therefore sought further.Wherein, particularly expect a kind of new technology relevant with the control of the clorox concentration in water ballast, this is because, need reductive agent or the time of needs for placing when there is superfluous clorox in water ballast when discharging.Therefore, as second method, the invention provides a kind of new treatment system that can control the clorox concentration of water ballast.

According to the present invention of second method, play and can inject the effect that water ballast controls the clorox concentration of the water ballast in ballast tank.In addition, according to the present invention, preferably, the effect can carried out the clorox concentration corresponding to the liquid that water intaking obtains and control is played.Further, according to the present invention of second method, play and clorox in ballast tank can be avoided superfluous and the effect that uses a large amount of reductive agents or the situation of placing of taking time when draining.

According to the control method of water ballast of the present invention; carry out injecting while judge that whether the clorox feed rate as benchmark of adding the liquid that water intaking obtains at first to is superfluous or not enough relative to the target concentration range of the water ballast after water filling; adjust the feed rate of the liquid interpolation obtained to water intaking, play the effect of the control can carrying out the clorox concentration corresponding to the liquid that water intaking obtains thus.Thus, according to the control method of water ballast of the present invention, play and clorox in ballast tank can be avoided not enough and the situation of sterilization effect or the superfluous and effect of situation that needs a large amount of reductive agents when draining or place for a long time of clorox cannot be played.

In second method, " germicidal treatment of water microorganisms " comprising: carrying out germicidal treatment at least partially and/or suppressing the propagation of water microorganisms the water microorganisms that liquid and/or the water ballast as handling object comprises.In addition, in this manual, " germicidal treatment of water microorganisms ", as long as at least carry out germicidal treatment to water microorganisms, also can carry out germicidal treatment to the biology, other biology etc. that are greater than water microorganisms together with the germicidal treatment of water microorganisms.As the germicidal treatment of water microorganisms, preferably comprise: the clorox concentration in ballast tank is managed and discharges benchmark to meet the water ballast shown in above-mentioned table 1 when discharging water ballast; More preferably comprise: carry out germicidal treatment and discharge benchmark to meet the water ballast shown in above-mentioned table 1 when discharging water ballast.

In second method, " chemicals feeder " is the device pointing to liquid and/or the water ballast supply aqueous sodium hypochlorite solution of fetching water and obtaining, and also can be produced the mode of the device of clorox by electrolysis, stored the mode of the device of clorox or its aqueous solution.As the chemicals feeder using electrolysis, the mode possessing electrolyzer and storage tanks as described later like that can be listed.Use the chemicals feeder of electrolysis that seawater can be utilized to generate clorox, the germicidal treatment therefore such as without the need to using the special chemical medicines etc. such as the sterilant that brings from outboard just can carry out water microorganisms.Both can come to storage tanks supply seawater etc. via pump, valve from water ballast supply lines, and also directly can fetch water to storage tanks supply seawater etc. from outboard.From the view point of the water intaking carrying out term of voyage easily, preferably directly do not fetch water from the water intaking of water ballast supply lines.In addition, the clorox generated is stored in storage tanks in the mode of the aqueous solution, is supplied to water ballast supply lines via pump, valve.Preferably chemicals feeder possesses the time meter of the concentration can measuring clorox (hereinafter referred to as " clorox densitometer " or be simply called " densitometer ".) and under meter so that the amount of clorox to the supply of water ballast supply lines can be grasped.

In addition, improve from the view point of processing efficiency, preferably use the chemicals feeder of electrolysis to possess sodium chloride aqueous solution hold-up vessel and/or sodium-chlor storage tank.By possessing sodium chloride aqueous solution hold-up vessel and/or sodium-chlor storage tank, sodium chloride aqueous solution/sodium-chlor can be stored and as required sodium chloride aqueous solution/sodium-chlor is supplied to electrolyzer in tank.Thus, such as, even be taken into the boats and ships of water ballast in fresh water, also can produce clorox and carry out germicidal treatment to utilize clorox.

In second method, " aeronautical data " refers to and comprises time for sailing, time to draining, the water quality at water intaking harbour, the navigation meteorological condition in marine site and/or the data of the information relevant with these data that term of voyage obtains.

In second method, " decay of clorox " refers to following situation: the clorox concentration received the water ballast of the supply of clorox from chemicals feeder reduces.One example of the extinction curve of clorox has been shown in Figure 20.The change of the clorox concentration in the curve representation model seawater of the solid line of Figure 20.In general, when making clorox be dissolved in seawater, the concentration shown at first sharply reduces (0 ~ time of time t3).Afterwards, concentration (dx) (time t3 ~) roughly is stably shown.

But the degree of the decay of clorox is also subject to fetching water the kind of composition in microorganism in the liquid that obtains, organism and/or other water, the impact of amount.The curve of the dotted line of Figure 20 is the example of the situation of concentration (dy) Δ d lower than model seawater when becoming in the actual seawater be taken into roughly steadily.In addition, in fig. 20, describe the situation that attenuation degree compared with model seawater in the actual seawater be taken into is larger, but also there is attenuation degree in the seawater the be taken into situation less than model seawater.Therefore, even if only supply clorox according to the decay imagined in advance (decay in model seawater), if there is the concentration difference Δ d reached in stable situation between the actual seawater be taken into, then clorox concentration also can be caused not enough or superfluous.

Thus, in order to more correctly prediction or the clorox concentration controlling the water ballast when water filling of water ballast completes, know that the reduction degree of the clorox in the liquid of fetching water and obtaining is very important.Therefore, a mode of the control method of water ballast of the present invention comprises: inject water ballast, measure the decay of the clorox of the water ballast injected on one side concurrently, regulate based on the feed rate of this take off data to the clorox supplied to above-mentioned water ballast supply lines from above-mentioned chemicals feeder.The adjustment of above-mentioned feed rate can comprise: based on above-mentioned attenuation measurement data, when prediction water ballast water filling completes, through specified time and/or the clorox concentration of discharging in the ballast tank of water ballast; Based on this prediction, decide the increase and decrease of the feed rate of the clorox supplied from chemicals feeder to water ballast supply lines; And based on above-mentioned decision, control the clorox amount to above-mentioned water ballast supply lines supply.

Specifically, such as can regulate the feed rate from above-mentioned chemicals feeder based on the attenuation data of clorox as follows.The decay of clorox of seawater of using a model can be measured in advance, as long as therefore based on the information such as flow of these model measurement data and the liquid obtained of fetching water, just can determine the initial feed rate of the clorox amount that supply.Then, use the liquid of fetching water and obtaining to measure decay, compare with the model measurement data measured in advance, such as, calculate the Δ d of Figure 20.Based on these data, the degree of decay is higher, more the amount of increasing supply, and the degree of decay is lower, more reduces feed rate.By carrying out this adjustment, the clorox concentration in ballast tank can be made to be in target zone.

Can by measuring the decay of the clorox in the liquid of fetching water and obtaining with the concentration of interval measurement clorox of regulation.Such as, the time that can list the t1 ~ t6 shown in Figure 20 carries out measurement to obtain attenuation data.As measurement interval, such as, can list 20 minutes ~ 1.5 hours, be preferably 30 minutes ~ 1 hour.Owing to needing to carry out attenuation measurement concurrently with the water filling to ballast tank and regulate the hypochlorous acid concentration supplied as required, therefore pendulous frequency preferably can predict the scope of extinction curve.Measure exemplified with 6 times of t1 ~ t6 in fig. 20, but as long as can extinction curve be doped, just can reduce pendulous frequency.

In a mode of the control method of water ballast of the present invention, the water ballast of the water ballast supply lines after chemicals feeder supply clorox is sampled and carries out the attenuation measurement of clorox.Therefore, as the sampling point of sample carrying out attenuation measurement, the water ballast supply lines preferably between the tie point of chemicals feeder and water ballast supply lines and ballast tank.In addition, preferably utilize the attenuation measurement unit possessing the densitometer of clorox to carry out above-mentioned sampling and attenuation measurement.In one embodiment, only once sample after water filling starts, the attenuation data of clorox can be obtained to perform the control method of water ballast of the present invention based on this sample.In addition, in other embodiments, multiple repairing weld can be carried out to obtain the attenuation data of multiple clorox to perform the control method of water ballast of the present invention.When carrying out multiple repairing weld, an attenuation measurement unit can be used more alternately to measure sample, or multiple samples of sampling and obtaining are measured on the while that multiple attenuation measurement unit can being used or staggering time ground concurrently.

As alternate manner, the present invention relates to a kind of water-filling method of water ballast, the method comprises: utilize the control method of water ballast of the present invention to control the clorox concentration in water ballast.

In addition, as alternate manner, the present invention relates to and a kind ofly can carry out the ballast water treatment system of the control method of water ballast of the present invention and possess the boats and ships of this pumping system.

Namely, as alternate manner, the present invention relates to a kind of ballast water treatment system (hereinafter also referred to " the second ballast water treatment system of the present invention "), this ballast water treatment system possesses: water ballast supply lines, and intake is connected with ballast tank by it; Chemicals feeder, it is connected with above-mentioned water ballast supply lines, and the aqueous sodium hypochlorite solution being used for carrying out the water microorganisms in aforesaid liquid germicidal treatment is supplied to above-mentioned water ballast supply lines; Attenuation measurement unit, between its tie point being configured at above-mentioned water ballast supply lines and above-mentioned chemicals feeder and ballast tank, carries out sampling to measure clorox concentration to the liquid in above-mentioned water ballast supply lines; Recording unit, it records the data obtained by the measurement of attenuation measurement unit; And control part, it controls the clorox amount supplied to above-mentioned water ballast supply lines via above-mentioned tie point from chemicals feeder in water ballast the injecting process, wherein, above-mentioned control part comprises: based on the rate of decay data of clorox, clorox concentration when predicting that water ballast water filling completes, within specified time and/or discharge water ballast ballast tank, determine the increase and decrease of the feed rate of the clorox from chemicals feeder supply, the clorox amount of the above-mentioned water ballast supply lines supply of subtend controls.

Above-mentioned control part still can carry out above-mentioned prediction and/or above-mentioned decision based at least one in the clorox concentration of the regulation that should maintain in the accumulative feed rate of the accumulative water injection rate of water ballast of the time point before controlling, clorox, aeronautical data and ballast tank.Further, also sometimes before water filling, just there is water ballast in ballast tank water.Therefore, in ballast tank, preferably possess liquid level meter etc. can measure the gauger of the capacity of water ballast and the gauger of the clorox concentration in ballast tank can be measured, these information are included and carry out above-mentioned prediction and/or above-mentioned decision.

(embodiment 2-1)

Figure 15 is the Sketch figure of the structure of the ballast water treatment system represented in embodiments of the present invention 2-1.

As shown in figure 15, the ballast water treatment system of present embodiment 2-1 comprises chemicals feeder 101 and attenuation measurement unit 112.Chemicals feeder 101 is connected with water ballast supply lines 107 with 109 via circuit 108.Circuit 108 is circuits that liquid (water ballast) for the water intaking before the interpolation aqueous sodium hypochlorite solution of water ballast supply lines 107 being obtained is supplied to chemicals feeder 101.Circuit 109 is the circuits for aqueous sodium hypochlorite solution being supplied to from chemicals feeder 101 water ballast supply lines 107.In addition, also directly can being taken into liquid (seawater etc.) from outside by circuit 110, replacing the Liquid transfer that obtains fetching water from water ballast supply lines 107 to the circuit 108 of chemicals feeder 101.Circuit 108 ~ 110 also can possess the pump for liquor charging.In addition, preferably circuit 109 possesses clorox densitometer and under meter, and to measure the feed rate of the clorox supplied to water ballast supply lines 107, above-mentioned under meter preferably can measure the flow quantity recorder FM of total flux.In addition, in fig .15, show the mode that circuit 108 ~ 110 possesses pump respectively, but the present invention is not limited to which, such as, the pump (not shown) being built in chemicals feeder 101 also can be utilized to carry out the conveying of liquid to replace these pumps.In addition, circuit 109 also can be the mode not being connected with water ballast supply lines 107 and being connected with sea chest 104.

One end of water ballast supply lines 107 is connected with ballast tank 103.Usually, ballast tank 103 is the mode comprising multiple ballast tank 103a ~ 103d.Water ballast supply lines 107 the other end be taken into the intake (sea chest) 104 of water ballast, strainer 105, ballast pump 106 be connected.In addition, configuration flow gauge (FM), clorox densitometer (C) and attenuation measurement unit 112 between the circuit 109 and the tie point of water ballast supply lines 107 of ballast tank 103 and shared clorox.

Attenuation measurement unit 112 is sampled from circuit 111 pairs of water ballasts after water ballast water filling starts, along with time repeated measurement clorox concentration.As mentioned above, by measuring like this, the reduction mode of the clorox in the liquid that can obtain fetching water is analyzed, thus can regulate the amount of the clorox supplied from circuit 109.In addition, during utilizing attenuation measurement unit 112 to measure decay, also the water filling of water ballast can be continued concurrently and without the need to being stopped, therefore also temporal loss can be prevented.

As the chemicals feeder 101 using electrolysis, such as, can use the chemicals feeder 201 shown in Figure 16.Figure 16 represents the Sketch figure that electrolysis can be used water microorganisms to be carried out to an example of the structure of the device of germicidal treatment.As shown in figure 16, chemicals feeder 201 possesses storage tanks 211 and electrolyzer 212.Storage tanks 211 is connected with 214 by circuit 213 with electrolyzer 212.The liquid of storage tanks 211 is transported to electrolyzer 212 by circuit 213, in electrolyzer 212, carry out germicidal treatment by electrolysis treatment.Then, the liquid processed through electrolyzer 212 is transported to storage tanks 211 by circuit 214.From the view point of generation and storage clorox, preferably circulated by circuit 213 and 214 between storage tanks 211 and electrolyzer 212.

In this chemicals feeder 201, owing to using electrolysis treatment, therefore such as without the need to using the special chemical medicines etc. such as the sterilant that brings from outboard just can carry out germicidal treatment to the water microorganisms liquid.In electrolyzer 212, carry out electrolysis treatment to produce clorox preferably by the sodium-chlor comprised liquid, use the clorox produced to carry out germicidal treatment to the water microorganisms in liquid.

In chemicals feeder 201, storage tanks 211 is the tanks for storing the liquid after untreated and/or process, and storage tanks 211 carries out the circuit 213 of the liquid of electrolysis with importing and the circuit 214 for discharging the liquid after electrolysis is connected respectively.Storage tanks 211 can be connected with circuit 108,109 and 110.

Preferably storage tanks 211 possesses the densitometer of clorox.Thus, clorox concentration in storage tanks 211 can be managed, and can according to the clorox concentration in storage tanks 211 to be such as supplied to storage tanks 211 liquid amount, the amount being transported to the liquid of electrolyzer 212 and/or water ballast supply lines 107 etc. and so on chemicals feeder 201 in the process of water ballast control.

In addition, as the chemicals feeder 101 using electrolysis, in addition, the chemicals feeder 201 shown in A ~ B of Fig. 2 can also be used.

Preferably the ballast water treatment system of present embodiment 2-1 also possess the recording unit of data that records and obtained by the measurement of attenuation measurement unit and in water ballast the injecting process to the control part controlled to the clorox amount that above-mentioned water ballast supply lines supplies via above-mentioned tie point from chemicals feeder.Above-mentioned control part can based on the rate of decay data of clorox, when predicting that water ballast water filling completes, through the specified time and/or discharge water ballast ballast tank in clorox concentration, determine the increase and decrease of the feed rate of the clorox from chemicals feeder supply, thus the clorox amount of the above-mentioned water ballast supply lines supply of subtend controls.

Attenuation measurement unit such as can use the device described in Figure 21.In the attenuation measurement unit 112 of Figure 21, be injected into container 701 from water ballast supply lines 107 sample obtained of sampling by circuit 111.From the view point of the homogeneity of the concentration maintained in container 701, attenuation measurement unit 112 possesses the agitator 703 of the drive-type utilizing electric motor M.Sample in container 701 utilizes pump P to be measured by densitometer C by circuit 702 termly.

(embodiment 2-2)

Figure 17 is the functional block diagram of the structure of the water ballast Controlling System represented in embodiments of the present invention 2-2.Present embodiment 2-2 relates to a kind of water ballast Controlling System that can be applied to ballast water treatment system as shown in figure 15.That is, the water ballast Controlling System 170 of Figure 17 possesses: measurement section 171, and it comprises attenuation measurement unit 112; Recording unit 172, the rate of decay data of the clorox obtained measured in its record by measurement section 171; And control part 173, its rate of decay data based on recording unit 172 decide the increase and decrease of the feed rate of the clorox supplied from chemicals feeder 101, and the clorox amount of subtend water ballast supply lines 107 supply controls.In addition, the water ballast Controlling System 170 of Figure 17 also can be contained in the ballast water treatment system of the present embodiment 2-1 shown in Figure 15 as structure division.

Measurement section 171 also can be configured to the structure as shown in the measurement section 181 of Figure 18.Namely, measurement section 181, except comprising attenuation measurement unit 112, can also comprise the clorox densitometer of the storage tanks 211 being configured under meter (FM) on water ballast supply lines 107 and clorox densitometer (C) and chemicals feeder 101.These information can be recorded in recording unit 172.

Recording unit 172 can record the data as shown in the recording unit 182 of Figure 18.Namely, can comprising and measure by measurement section 181 rate of decay data, the flow of water ballast and the clorox concentration of clorox concentration and storage tanks that obtain, the elapsed time from starting to inject water ballast and aeronautical data (time till being preferably at least included in draining) can also being comprised.Recording unit 182 can also record the clorox concentration range that should maintain in ballast tank in advance.

Control part 173 can be configured to the structure as shown in the control part 183 of Figure 18.Namely, analysis portion 1811 and feed rate control part 1812 can be comprised, when this analysis portion 1811 predicts that water ballast water filling completes based on the data be recorded in recording unit 182, through the specified time and/or discharge water ballast ballast tank 103 in clorox concentration, this feed rate control part 1812 decides the increase and decrease of the feed rate of the clorox supplied from chemicals feeder 101 based on the result of analysis portion 1811, the clorox amount of subtend water ballast supply lines 107 supply controls.

Use Figure 19 that one example of the control method of water ballast of the present invention and the water-filling method of water ballast is described.As shown in figure 19, first, ballast pump 106 is made to start (S501).Thus, start to be taken into liquid by sea chest 104.In addition, when chemicals feeder 101 is the devices using electrolysis, the generation (S502) of clorox is started.Send the liquid of fetching water and obtaining to water ballast supply lines 107 by the startup (S501) of ballast pump 106, start to ballast tank 103 water filling (S503).The flow of water ballast, water filling time opening, accumulative water injection rate, hypochlorous acid concentration etc. is measured by being configured under meter (FM) on water ballast supply lines 107 and densitometer (C).These information can be stored in recording unit 182.When starting to 107 water filling of water ballast supply lines, by circuit 109, the aqueous sodium hypochlorite solution of initial setting amount is supplied to water ballast supply lines 107 (S504) from chemicals feeder 101.This initial setting amount can be preset based on the attenuation data etc. of the concentration of the aqueous sodium hypochlorite solution stored by the concentration range of the clorox in the water ballast in the ballast tank 103 after water filling, chemicals feeder 101 (or storage tanks 211) and the clorox obtained in advance.This initial setting amount can be stored in recording unit 182, also feed rate control part 1812 pairs of feed rates of control part 183 can be controlled based on this information.In addition, from the view point of draining cost, water discharge time, preferably initial setting amount is set smaller than the concentration equaling the regulation that (the time tx of Figure 20) can discharge when boats and ships arrive point of destination and discharge water ballast.

Then, sample to for the water ballast giving clorox from circuit 111, carried out the concentration of repeated measurement clorox by attenuation measurement unit 112, obtain attenuation data (S505).Sampling can be carried out within such as 0 ~ 1 hour after water ballast water filling starts, and the measurement of concetration of the clorox in attenuation measurement unit 112 can carry out in the scope that every 30 minutes ~ 1 hour measures such as 1 ~ 10 time.Attenuation data in the liquid that the water intaking obtained like this obtains is stored in recording unit 182.In addition, in the measuring process of the attenuation data in attenuation measurement unit 112, also can proceed water ballast water filling and not stop.Whether suitably (S506) the analysis portion 1811 Visitor Logs portion 182 of control part 183, judge the amount of the clorox of current supply.In addition, analysis portion 1811 can Visitor Logs portion 182 at any time, judges at the time point of the extinction curve that can dope the liquid obtained of fetching water.If clorox excessive concentration, then pipe arrangement (circuit), the damage of ballast tank and the reason of deterioration be becoming, in addition, reductive agent, storage period needed when discharging.On the other hand, if clorox concentration is too low, then the germicidal treatment of water microorganisms is insufficient.When being judged as needing to correct the feed rate of clorox, the feed rate control part 1812 of control part 183 corrects (S507) the amount supplied from chemicals feeder 101 (or storage tanks 211).On the other hand, when not needing to correct the feed rate of clorox, directly continue the water filling (S508) of water ballast.The making of sampling and attenuation data both can be also can be repeatedly once.In addition, judge whether to need the number of times judging (S506) that corrects clorox feed rate also both can as once also can for repeatedly based on attenuation data.Can time needed for the water filling of water ballast, the water ballast total amount injected judge they (S509).Finally, inject water ballast until become target capacity (S510), the water filling of water ballast completes.

(embodiment 2-3)

Figure 22 is the Sketch figure of the structure of the ballast water treatment system represented in embodiments of the present invention 2-3.In fig. 22, same to the textural element additional phase identical with Figure 15 mark.

In present embodiment 2-3, chemicals feeder 801 is connected with the second intake 804 being different from the intake 104 that water ballast supply lines 107 is connected.Namely, the chemicals feeder 801 of present embodiment 2-3 not with can be taken into the circuit of fetching water the liquid obtained from the intake being taken into water ballast (sea chest) 104 and be connected, and be connected with the second intake 804 via circuit 810, identical with the ballast water treatment system structure of embodiment 2-1 in addition.Like this, ballast water treatment system according to the present embodiment in 2-3, in chemicals feeder 801, do not use and to fetch water the liquid (adding the liquid that the water intaking before aqueous sodium hypochlorite solution obtains) obtained from the intake being taken into water ballast (sea chest) 104, and use from the second intake 804 and fetch water the liquid that obtains to produce clorox, therefore compared with the intake 104 being taken into water ballast, such as, liquid can be taken into easily with low electric power.Therefore, it is possible to by be taken into the liquid for generation of clorox from outside at term of voyage, produce clorox at term of voyage by chemicals feeder 801, such as, can reduce power consumption when water ballast being stored into ballast tank 103.In addition, term of voyage becomes easy to the supply of the aqueous sodium hypochlorite solution of ballast tank 103, can suppress breeding again of the water microorganisms in ballast tank 103.Circuit 810 such as also can possess the pump 806 for the liquid be taken into from the second intake 804 being delivered to chemicals feeder 801.In addition, circuit 810 also can possess the strainer 805 for the protection of chemicals feeder 801.

[Third Way]

Therefore, as Third Way, the present invention relates to a kind of ballast water treatment system (hereinafter also referred to " the 3rd ballast water treatment system of the present invention "), this ballast water treatment system possesses: water ballast supply lines, and intake is connected with ballast tank by it; And chemicals feeder, it is connected with above-mentioned water ballast supply lines, the aqueous sodium hypochlorite solution being used for carrying out the water microorganisms in the liquid be taken into from above-mentioned intake germicidal treatment is supplied to above-mentioned water ballast supply lines, wherein, above-mentioned chemicals feeder is connected with the second intake being different from the intake that above-mentioned water ballast supply lines is connected, and carries out electrolysis to produce clorox to the liquid be taken into from above-mentioned second intake.

3rd ballast water treatment system of the present invention is based on following opinion: by carrying out the water intaking chemicals feeder from the intake being different from the intake (sea chest) being taken into water ballast, can come easily and produce clorox with low electric power.In addition, 3rd ballast water treatment system of the present invention is based on following opinion: in boats and ships, when the lay day that reaches port, there is the loading and unloading operation of the water intaking of water ballast and discharge, goods, maximum electric power can be used, therefore be taken into the generation with clorox by the liquid that carries out using in the generation of clorox at term of voyage, the peak value of power consumption can be made to disperse, reduce the generator capacity being loaded into boats and ships.

According to the 3rd ballast water treatment system of the present invention, such as, chemicals feeder is connected with the second intake being different from the intake that water ballast supply lines is connected, and therefore plays the effect that can be taken into the liquid used in the generation of clorox easily.Thus, according to the 3rd ballast water treatment system of the present invention, without the need to driving sea chest just can fetch water, therefore such as playing and also can be taken into the liquid used in the generation of clorox, the effect that this water intaking can also be carried out with low electric power easily at term of voyage.

In Third Way, " be different from the second intake of the intake that water ballast supply lines connects " and refer to for being taken into liquid to be stored in the intake beyond the intake (such as sea chest) in ballast tank, such as, can list the existing intake etc. for tap water etc. on boats and ships.

3rd ballast water treatment system of the present invention also can possess the control part controlled the clorox amount supplied from chemicals feeder to water ballast supply lines.Control part preferably in Third Way controls the generation of water intaking from the liquid of the second intake and clorox based on the clorox amount in chemicals feeder and/or the clorox concentration in ballast tank.

As another way, the present invention relates to a kind for the treatment of process of water ballast, to the method that water ballast processes in boats and ships, these boats and ships possess water ballast supply lines and chemicals feeder, intake is connected with ballast tank by this water ballast supply lines, this chemicals feeder is connected with above-mentioned water ballast supply lines, the aqueous sodium hypochlorite solution water microorganisms in the liquid be taken into from above-mentioned intake being carried out to germicidal treatment is used for above-mentioned water ballast supply lines supply, the method comprises: in above-mentioned chemicals feeder, electrolysis is carried out to produce clorox to the liquid be taken into from the second intake being different from the intake that above-mentioned water ballast supply lines connects, and supply above-mentioned clorox from above-mentioned chemicals feeder to above-mentioned water ballast supply lines.

Preferably carry out the electrolysis treatment in chemicals feeder at term of voyage.Thereby, it is possible to reduce power consumption when injecting water ballast to ballast tank.In addition, storing by producing clorox at term of voyage, from water ballast water filling starts, just can supply clorox, therefore, it is possible to prevent temporal loss.

As another way, the present invention relates to a kind of manufacture method, it is the method for the clorox manufactured in boats and ships for carrying out germicidal treatment to the water microorganisms in water ballast, these boats and ships possess water ballast supply lines and chemicals feeder, intake is connected with ballast tank by this water ballast supply lines, this chemicals feeder is connected with above-mentioned water ballast supply lines, the aqueous sodium hypochlorite solution water microorganisms in the liquid be taken into from above-mentioned intake being carried out to germicidal treatment is used for above-mentioned water ballast supply lines supply, the method comprises: in above-mentioned chemicals feeder, electrolysis is carried out to produce clorox to the liquid be taken into from the second intake being different from the intake that above-mentioned water ballast supply lines connects.Manufacturing method according to the invention, such as, chemicals feeder can be taken into from the second intake being different from the intake that water ballast supply lines connects the liquid used the generation of clorox easily, therefore plays the effect that can produce clorox easily.

Preferably the electrolysis of aforesaid liquid is carried out at term of voyage.Thereby, it is possible to power consumption when reducing water ballast water filling.

(embodiment 3-1)

Figure 23 is the Sketch figure of the structure of the ballast water treatment system represented in embodiments of the present invention 3-1.In fig 23, to the textural element additional phase isolabeling identical with Figure 15.

The ballast water treatment system of present embodiment 3-1 does not possess attenuation measurement unit 112 and the circuit 111 for sampling attenuation measurement unit 112 from water ballast supply lines 107, identical with the ballast water treatment system structure of embodiment 2-3 in addition.

One example of the treatment process of the water ballast of the ballast water treatment system using present embodiment 3-1 is described.

At term of voyage, before being taken into water ballast and/or when being taken into water ballast, being taken into from outboard the liquid used the generation of clorox by circuit 810 from the second intake 804, producing clorox by electrolysis.The ballast water treatment system of 3-1 according to the present embodiment, the circuit 810 being taken into the liquid used in the generation of clorox is connected with the second intake 804 being different from water ballast intake 104, therefore without the need to driving ballast pump 106 just can be taken into liquid.In addition, in boats and ships, store water ballast time etc. the lay day that reaches port, there is the loading and unloading operation of goods, maximum electric power can be used, therefore from the view point of making the peak value of power consumption disperse to reduce generator capacity, preferably carrying out being taken into of the liquid used in the generation of clorox at term of voyage and storing in advance with the generation of clorox.

In order to be taken into water ballast, ballast pump 106 is started.Thus, start to be taken into liquid by sea chest 104, begin through water ballast supply lines 107 to ballast tank 103 water filling.When starting to 107 water filling of water ballast supply lines, the aqueous sodium hypochlorite solution be stored in chemicals feeder 801 is fed into water ballast supply lines 107 by circuit 109.The ballast water treatment system of 3-1 according to the present embodiment, can be stored in the clorox produced in advance before being taken into water ballast, therefore, it is possible to aqueous sodium hypochlorite solution is supplied to water ballast supply lines 107 in beginning while ballast tank 103 water filling.

The feed rate of aqueous sodium hypochlorite solution can be predetermined based on the concentration etc. of the aqueous sodium hypochlorite solution stored by the amount of the water ballast injected to ballast tank 103, chemicals feeder 801 (or storage tanks 211).In addition, also can control the feed rate of aqueous sodium hypochlorite solution in control part (not shown) based on the observed value of the under meter be configured on water ballast supply lines 107 (FM) and clorox densitometer (C).

[fourth way]

As fourth way, the present invention relates to a kind of ballast water treatment system, this ballast water treatment system possesses: water ballast supply lines, and intake is connected with ballast tank by it; Kill and wound treatment unit, it is configured on above-mentioned water ballast supply lines, for killing and wounding process to the hydrobiont in the liquid be taken into from above-mentioned intake; And chemicals feeder, it is connected with above-mentioned water ballast supply lines, the aqueous sodium hypochlorite solution being used for killing the hydrobiont in the liquid be taken into from above-mentioned intake process is supplied to above-mentioned water ballast supply lines, wherein, from by selecting electrolytic processing apparatus, centrifugal equipment for separating liquid from solid and utilize hydraulic pressure to produce group that the shockwave device that carries out processing forms above-mentionedly to kill and wound treatment unit.According to the ballast water treatment system of fourth way, the above-mentioned treatment unit that kills and wounds is utilized to carry out killing and wounding and process and utilize clorox to carry out killing and wounding process, therefore, it is possible to carry out the process of water ballast efficiently.In the ballast water treatment system of fourth way, chemicals feeder, electrolytic processing apparatus and water ballast supply lines etc. are identical with above-mentioned first method ~ Third Way.

In the ballast water treatment system of fourth way, preferably chemicals feeder is connected with ballast pump.Thereby, it is possible to be taken into the liquid for the manufacture of aqueous sodium hypochlorite solution while being taken into water ballast, thus processing efficiency can be improved.

(embodiment 4-1)

Figure 24 is the Sketch figure of the structure of the ballast water treatment system represented in embodiments of the present invention 4-1.In fig. 24, same to the textural element additional phase identical with Fig. 1 mark.

In the ballast water treatment system of present embodiment 4-1, chemicals feeder 101 is connected with ballast pump 106 via circuit 110, and killing and wounding treatment unit is electrolytic processing apparatus 202, identical with the ballast water treatment system structure of embodiment 1-1 in addition.Import to ballast tank 103 from the view point of the unnecessary air of suppression, liquid supply lines 109 also can possess the degassing vessel (not shown) for removing the gas that aqueous sodium hypochlorite solution comprises.

One example of the treatment process of the water ballast of the ballast water treatment system using present embodiment 4-1 is described.

At the lay day that reaches port, in order to be taken into water ballast, ballast pump 106 is started.Start to be taken into liquid by sea chest 104 thus, begin through water ballast supply lines 107 to ballast tank 103 water filling.Now, be taken into the liquid used in the generation of clorox by circuit 110 to chemicals feeder 101 together with the water intaking of water ballast, produce clorox by electrolysis.The ballast water treatment system of 4-1 according to the present embodiment, the circuit 110 being taken into the liquid used in the generation of clorox is connected with ballast pump 106, therefore, it is possible to be taken into the liquid used in the generation of clorox when being taken into water ballast.The liquid used in the generation of clorox just can be taken into without the need to driving the pump beyond ballast pump 106.

Then, in electrolytic processing apparatus 2020, process is killed and wounded to the liquid be taken into by sea chest 104.Kill and wound the liquid after process after the aqueous sodium hypochlorite solution generated by chemicals feeder 101 is supplied by liquid supply lines 109, be supplied to ballast tank 103 by water ballast supply lines 107.Like this, undertaken by utilizing electrolysis treatment killing and wounding and process and utilize clorox to carry out killing process, can efficiently by ballast water treatment to the level meeting water ballast and discharge benchmark.In addition, the water ballast stored by ballast tank 103 comprises clorox, therefore also keeps killing effect at term of voyage, thus can suppress hydrobiological propagation.

In addition, in embodiment 4-1, to be connected being illustrated to the mode of carrying out killing and wounding the liquid after process through electrolytic processing apparatus 202 and supply aqueous sodium hypochlorite solution with water ballast supply lines 107 with liquid supply lines 109, but to be not limited thereto.Such as, both can with utilize electrolytic processing apparatus 202 process before supply aqueous sodium hypochlorite solution mode liquid supply lines 109 is connected with water ballast supply lines 107, also can with utilize electrolytic processing apparatus 202 process before and after this two side mode of all supplying aqueous sodium hypochlorite solution liquid supply lines 109 is connected with water ballast supply lines 107.

utilizability in industry

Useful in the process of the water ballast of the present invention in boats and ships.

In addition, in addition, the present invention can relate to following any one.

The control method of a <1> water ballast, comprising:

Be supplied in the ballast water treatment system of the chemicals feeder of above-mentioned water ballast supply lines at the water ballast supply lines possessed for the liquid be taken into from intake being supplied to ballast tank and by the aqueous sodium hypochlorite solution being used for carrying out the water microorganisms in aforesaid liquid germicidal treatment

Liquid in above-mentioned water ballast supply lines after clorox from above-mentioned chemicals feeder supply specified amount is sampled, the decay of the clorox concentration in the sample obtained sampling is measured, and regulates the feed rate of the clorox supplied to above-mentioned water ballast supply lines from above-mentioned chemicals feeder based on this take off data;

The control method of the water ballast of <2> according to <1>,

The adjustment of above-mentioned feed rate comprises: when the attenuation measurement data based on the clorox of fetching water in the liquid that obtains predict that water ballast water filling completes, through specified time and/or the clorox concentration of discharging in the ballast tank of water ballast; The increase and decrease of the feed rate of the clorox supplied from chemicals feeder to water ballast supply lines is decided based on this prediction; And control the clorox amount to above-mentioned water ballast supply lines supply based on above-mentioned decision;

The control method of the water ballast of <3> according to <1> or <2>,

Above-mentioned sampling and attenuation measurement are undertaken by the attenuation measurement unit of the densitometer possessing clorox;

The water-filling method of a <4> water ballast, comprising:

Controlled by the control method described in any one in <1> to <3>;

<5> ballast water treatment system, possesses:

Water ballast supply lines, intake is connected with ballast tank by it;

Chemicals feeder, it is connected with above-mentioned water ballast supply lines, and the aqueous sodium hypochlorite solution being used for carrying out the water microorganisms in the liquid be taken into from above-mentioned intake germicidal treatment is supplied to above-mentioned water ballast supply lines;

Attenuation measurement unit, between its tie point being configured at above-mentioned water ballast supply lines and above-mentioned chemicals feeder and ballast tank, carries out sampling to measure clorox concentration to the liquid in above-mentioned water ballast supply lines;

Recording unit, it records the data obtained by the measurement of attenuation measurement unit; And

Control part, it controls the clorox amount supplied to above-mentioned water ballast supply lines via above-mentioned tie point from chemicals feeder in water ballast the injecting process,

Wherein, above-mentioned control part comprises: when predicting that water ballast water filling completes based on the rate of decay data of clorox, through specified time and/or the clorox concentration of discharging in the ballast tank of water ballast, determine the increase and decrease of the feed rate of the clorox from chemicals feeder supply, the clorox amount of the above-mentioned water ballast supply lines supply of subtend controls;

The ballast water treatment system of <6> according to <5>,

Above-mentioned control part also carries out above-mentioned prediction and/or above-mentioned decision based at least one in the clorox concentration of the regulation that should maintain in the accumulative feed rate of the accumulative water injection rate of water ballast of the time point before controlling, clorox, aeronautical data and ballast tank;

The ballast water treatment system of <7> according to <5> or <6>,

Above-mentioned chemicals feeder is connected with the second intake being different from the intake that above-mentioned water ballast supply lines is connected, and uses the liquid be taken into from above-mentioned second intake to produce clorox;

<8> boats and ships, possess the ballast water treatment system described in any one in <5> to <7>.

Claims

1. a control method for water ballast, comprising:

Liquid in above-mentioned water ballast supply lines after clorox from above-mentioned chemicals feeder supply specified amount is sampled, the decay of clorox relative concentration in the time in the sample obtained sampling by the concentration measuring the clorox of sampling in the sample that obtains with predetermined time interval is measured, the feed rate of the clorox supplied to above-mentioned water ballast supply lines from above-mentioned chemicals feeder is regulated based on this take off data, wherein, the timed interval of afore mentioned rules is 20 minutes ~ 1.5 hours.

2. the control method of water ballast according to claim 1, is characterized in that,

The adjustment of above-mentioned feed rate comprises: when the attenuation measurement data based on the clorox of fetching water in the liquid that obtains predict that water ballast water filling completes, through specified time and/or the clorox concentration of discharging in the ballast tank of water ballast; The increase and decrease of the feed rate of the clorox supplied from chemicals feeder to water ballast supply lines is decided based on this prediction; And control the clorox amount to above-mentioned water ballast supply lines supply based on above-mentioned decision.

3. the control method of water ballast according to claim 1 and 2, is characterized in that,

Above-mentioned sampling and attenuation measurement are undertaken by the attenuation measurement unit of the densitometer possessing clorox.

4. a water-filling method for water ballast, comprising:

Controlled by the control method according to any one in claims 1 to 3.

5. a ballast water treatment system, possesses:

Water ballast supply lines, intake is connected with ballast tank by it;

Attenuation measurement unit, between its tie point being configured at above-mentioned water ballast supply lines and above-mentioned chemicals feeder and ballast tank, liquid in above-mentioned water ballast supply lines is sampled, clorox relative concentration in the sample of sampling and obtaining is measured in the decay of time by the concentration measuring the clorox of sampling in the sample that obtains with predetermined time interval, wherein, the timed interval of afore mentioned rules is 20 minutes ~ 1.5 hours;

Wherein, above-mentioned control part comprises: when predicting that water ballast water filling completes based on the rate of decay data of clorox, through specified time and/or the clorox concentration of discharging in the ballast tank of water ballast, determine the increase and decrease of the feed rate of the clorox from chemicals feeder supply, the clorox amount of the above-mentioned water ballast supply lines supply of subtend controls.

6. ballast water treatment system according to claim 5, is characterized in that,

Above-mentioned control part also carries out above-mentioned prediction and/or above-mentioned decision based at least one in the clorox concentration of the regulation that should maintain in the accumulative feed rate of the accumulative water injection rate of water ballast of the time point before controlling, clorox, aeronautical data and ballast tank.

7. boats and ships, possess the ballast water treatment system according to claim 5 or 6.