WO2013077496A1 - Method and device for treating ship ballast water - Google Patents

Method and device for treating ship ballast water Download PDF

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Publication number
WO2013077496A1
WO2013077496A1 PCT/KR2012/000191 KR2012000191W WO2013077496A1 WO 2013077496 A1 WO2013077496 A1 WO 2013077496A1 KR 2012000191 W KR2012000191 W KR 2012000191W WO 2013077496 A1 WO2013077496 A1 WO 2013077496A1
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WO
WIPO (PCT)
Prior art keywords
ballast water
residual chlorine
outlet
main pipe
electrolytic cell
Prior art date
Application number
PCT/KR2012/000191
Other languages
French (fr)
Korean (ko)
Inventor
이수태
표태성
육근재
임대경
Original Assignee
주식회사 파나시아
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Application filed by 주식회사 파나시아 filed Critical 주식회사 파나시아
Publication of WO2013077496A1 publication Critical patent/WO2013077496A1/en

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J4/00—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for
    • B63J4/002—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for for treating ballast water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/008—Originating from marine vessels, ships and boats, e.g. bilge water or ballast water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C02F2201/46125—Electrical variables
    • C02F2201/46135—Voltage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/005—Processes using a programmable logic controller [PLC]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/29—Chlorine compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/18—Removal of treatment agents after treatment
    • C02F2303/185—The treatment agent being halogen or a halogenated compound

Definitions

  • the present invention relates to a ballast water treatment apparatus and treatment method for ships, and more specifically, after the ballast water is introduced into the ballast water storage tank of the vessel by electrolytic decomposition of some ballast water in the electrolytic cell to produce residual chlorine, By mixing with the incoming ballast water and storing it in the ballast water storage tank of the ship, it sterilizes harmful microorganisms and bacteria by the sterilization effect of residual chlorine contained in the stored ballast water.
  • the present invention relates to a ballast water treatment apparatus and treatment method for ships capable of discharging ballast water by reducing the concentration below.
  • ballast tank In general, the cargo ships that are transported by sea should be operated one-way, except for the ships that return and exchange for similar cargoes.
  • a separate tank called a ballast tank is installed on the bottom and left and right sides of the ship, and the ballast water (fresh water or seawater) is introduced into the ship to sail in the ballast state. .
  • the amount of seawater flowing into the ballast tank is set based on the size of the ship, that is, the amount of drainage.
  • the seawater introduced in this process includes micro-marine life.
  • the micro-marine life mixed in the seawater inflow process There is a problem spread to the region.
  • the movement of marine organisms is a phenomenon that rarely occurs in the natural world, causing ecosystem disturbances such as fluctuations in representative species and red tide.
  • ballast water treatment systems in various ways to cope with this are being conducted in various countries.
  • Such methods include physical, chemical, and electrical treatment methods and devices such as filtering, ultraviolet disinfection, and high temperature heating. Is being developed.
  • the method of filtering the incoming seawater in order to remove the micro marine organisms in the ballast tank has a problem of processing capacity because the amount of incoming seawater is reduced, and there is a problem that complete processing cannot be performed because there is a limitation of the mesh of the filter. .
  • the method of injecting the chemical into the ballast water can remove the introduced marine organisms, while the toxic chemicals remaining in the ballast tanks contaminate nearby waters when the seawater is discharged, causing environmental damage.
  • the present inventors electrolyze some ballast water in an electrolytic cell upon inflow of ballast water into a vessel, and induce a ballast water containing residual chlorine generated therein into the ballast tank of the vessel.
  • the bactericidal effect can be used to sterilize harmful microorganisms and bacteria, and when the ballast water is discharged, a neutralizing agent is injected to reduce the concentration of residual chlorine to an appropriate amount or less to develop a device and a method for discharging the ballast water.
  • An object of the present invention is to provide a ballast water treatment apparatus and treatment method for marine vessels that can have an excellent treatment effect compared to the filtering method of the ballast water, chemical treatment method, and can prevent environmental pollution.
  • the present invention is a ballast water treatment apparatus for ships installed in the ballast water main pipe connected to the ballast water storage tank,
  • a first outlet inlet installed at the front end of the ballast water main pipe and a second outlet inlet installed at a rear end of the ballast water main pipe;
  • a circulation pump connected to the pipe structure and driven to inflow or discharge some ballast water from the ballast water main pipe;
  • An electrolytic cell having an electrode set configured to electrolyze a portion of ballast water introduced by the circulation pump;
  • a rectifier connected to the electrolytic cell to adjust a voltage applied to the electrolytic cell
  • a residual chlorine measuring sensor connected to the first outlet and the second outlet to measure an amount of residual chlorine
  • a control device connected to the rectifier and the residual chlorine measuring sensor
  • ballast water treatment apparatus for ships comprising a neutralizer storage tank and a metering pump installed to inject the neutralizer into the second outlet.
  • the tubular structure connecting between the first outlet and the second outlet of the ballast water treatment device for ships is connected to a thermometer, pressure gauge and flow meter, the thermometer, pressure gauge and flow meter is Can be connected with the control unit.
  • a filter unit is installed at the inlet of the ballast water main pipe.
  • a gas vent may be installed to discharge hydrogen generated by electrolysis of the ballast water to the outside of the electrolytic cell through the gas vent.
  • step 1 Injecting some ballast water from the second outlet of the first outlet and the second outlet, which are installed at the front and rear ends of the ballast water main pipe connected to the ballast water storage tank (step 1);
  • step 2 Measuring the amount of residual chlorine in the ballast water introduced through the second outlet in step 1 by using a residual chlorine measuring sensor (step 2);
  • step 3 After comparing the residual chlorine measurement value measured by the residual chlorine measuring sensor and a predetermined value inputted as an appropriate amount of residual chlorine to the control device through the control device, the voltage of the rectifier connected to the electrolytic cell is controlled by the control device to the electrolytic cell. Electrolyzing the introduced ballast water (step 3);
  • step 4 Discharging the electrolyzed ballast water through a first outlet inlet installed at the tip of the ballast water main pipe, transferring the ballast water together with the ballast water received through the ballast water main pipe, and storing the ballast water in a ballast water storage tank (step 4);
  • the present invention provides a method for treating ballast water for ships comprising comparing a predetermined value set through a control device and injecting a neutralizing agent into the ballast water main pipe when the residual chlorine measurement value is higher than the set value (step 5).
  • the controller increases the voltage of the rectifier to electrolyze the ballast water introduced into the electrolytic cell, and the residual chlorine measured value is the set value of the preferred residual chlorine.
  • the control unit can lower the voltage of the rectifier to electrolyze the ballast water introduced into the electrolyzer, thereby adjusting the concentration of residual chlorine in the ballast water storage tank to a value similar to the set value.
  • the control unit commands the automatic control valve connected to the control unit to open the neutralizing agent storage tank and the neutralizing agent is discharged through the second outlet through the metering pump.
  • the concentration of residual chlorine in the ballast water discharged through the ballast water main pipe it is possible to reduce the concentration of residual chlorine in the ballast water discharged through the ballast water main pipe to an appropriate amount or less.
  • ballast water flowing into the ballast water storage tank is electrolyzed in an electrolytic cell and re-injected into the ballast water transferred to the ballast water storage tank to the ballast water by the sterilization effect of residual chlorine generated by electrolysis.
  • FIG. 1 is a cross-sectional view of a ship schematically showing a structure in which the ballast water treated using the ballast water treatment apparatus for ships according to the present invention is injected into a ballast water storage tank installed on the bottom and left and right sides of the ship.
  • FIG. 2 is a schematic view showing the structure of the ballast water treatment apparatus for ships according to the present invention installed in section A-A ⁇ of FIG.
  • FIG. 3 is a process flowchart of the ballast water treatment method for ships according to the present invention.
  • the present invention is a ballast water treatment apparatus for ships 200 is installed in the ballast water main pipe 110 connected to the ballast water storage tank 120,
  • a first outlet inlet 111 installed at the front end of the ballast water main pipe 110 and a second outlet inlet 112 installed at a rear end of the ballast water main pipe 110;
  • a circulation pump 140 connected to the pipe structure 130 and driven to introduce or discharge some ballast water from the ballast water main pipe 110;
  • An electrolyzer 150 having an electrode set for electrolyzing the ballast water introduced by the circulation pump 140;
  • a rectifier 160 connected to the electrolyzer 150 to adjust a voltage applied to the electrolyzer 150;
  • Residual chlorine measuring sensors (170 and 171) connected to the first outlet (111) and the second outlet (112) to measure the concentration of residual chlorine
  • a controller 180 connected to the rectifier 160 and residual chlorine measuring sensors 170 and 171; And
  • It provides a ship ballast water treatment apparatus 200 comprising a.
  • the vessel ballast water treatment apparatus 200 between the ballast water main pipe (110) flowing the ballast water into the ballast water storage tank inlet to the vessel 10 (Fig. 1 Of the remaining chlorine generated by electrolysis by electrolyzing part of the ballast water introduced into the ballast water storage tank 120 and injecting the ballast water back into the ballast water.
  • Fig. 1 Of the remaining chlorine generated by electrolysis by electrolyzing part of the ballast water introduced into the ballast water storage tank 120 and injecting the ballast water back into the ballast water.
  • the ballast water treatment apparatus 200 for ships includes residual chlorine generated by performing electrolysis in the electrolytic cell 150 by introducing some ballast water in the course of passing the ballast water through the ballast water main pipe 110.
  • the ballast water storage tank 120 is transferred to the ballast water storage tank 120 and stored together with the ballast water flowing into the ballast water main pipe 110 by the sterilization effect of residual chlorine generated by electrolysis. It can sterilize harmful microorganisms and bacteria contained in ballast water stored in.
  • the front end of the ballast water main pipe 110 means an inlet portion into which the ballast water flows, and the rear end of the ballast water main pipe 110 stores the ballast water in a direction opposite to the front end of the ballast water main pipe 110.
  • the part connected to the tank 120 Defined as meaning the part connected to the tank 120.
  • the ballast water introduced by the ballast pump 194 and passing through the ballast water main pipe 110 is a ballast by the circulation pump 140.
  • the circulation pump 140 Partly flowed from the second outlet 112 installed at the rear end of the male main pipe 110 is transferred to the electrolytic cell 150, the first outlet 111, the second outlet 112, the electrolytic cell 150
  • the circulation pump 140 is connected by the tubular structure 130 has a structure in which the ballast water can be transferred.
  • ballast water introduced from the second outlet inlet 112 installed at the rear end of the ballast water main pipe 110 is transferred to the electrolytic cell 150, and then, at the anode and the cathode of the electrolytic cell 150, A reaction according to the scheme may occur, and a reaction according to formula 3 may occur between the electrodes to produce a fungicide of HOCl, OCl ⁇ .
  • the ship ballast water treatment apparatus 200 inflows some ballast water from the second outlet inlet 112 installed at the rear end of the ballast water main pipe 110, and then electrolyzes the electrolytic cell in the electrolytic cell 150.
  • the ballast water containing the generated residual chlorine is discharged through the first inlet pipe 111 installed at the tip of the ballast water main pipe 110 to store the ballast water together with the ballast water flowing into the ballast water main pipe 110.
  • the electrolytic cell 150 is provided with an electrode set that can be electrolyzed, and the electrode set may be disposed to be spaced apart at a predetermined interval in the electrolyzer, the positive electrode and the negative electrode.
  • the electrode of the electrode set of the electrolytic cell 150 can be manufactured by adjusting the area, number and number of stages in consideration of the throughput of the ballast water, and in the electrolytic cell in parallel with the flow direction of the ballast water It is preferable to arrange
  • the chamber surrounding the electrode set in the electrolytic cell 150 is a strength condition to withstand the strong hydraulic pressure of the circulation pump 140, oxidation resistance conditions and currents that can withstand oxidizing materials such as salts of seawater and radicals generated during electrolysis do not pass through It shall be made of a material that satisfies the condition of the insulator.
  • the rectifier 160 is connected to the electrolytic cell 150 used in the ballast water treatment apparatus 200 for ships of the present invention, and the rectifier 160 has a structure connected to the control device 180.
  • the control unit 180 is inputted with the measured value of the residual chlorine measured by the residual chlorine measurement sensor 171 installed in the pipe structure connected to the second outlet inlet 112 and the appropriate amount of the residual chlorine to the control unit 180. It compares the set value and serves to control the rectifier 160 to store the ballast water containing the residual chlorine of the appropriate concentration in the ballast water storage tank 120.
  • a gas vent (not shown) is formed in the electrolytic cell 150 to discharge (vent) the hydrogen generated during electrolysis to the atmosphere to prevent explosion at the outlet of the electrolytic cell 150.
  • Ship ballast water treatment apparatus 200 receives the information of the thermometer 193, pressure gauge 192, flow meter 191 and residual chlorine measuring sensors 170 and 171 containing residual chlorine of an appropriate concentration It is configured to include a control device 180 for controlling the ballast water is injected into the ballast water storage tank 120 through the ballast water main pipe 110.
  • thermometer 193, the pressure gauge 192 and the flow meter 191 is connected to the control device 180 is a safety device for protecting the electrolytic cell 150. That is, the thermometer 193 monitors the temperature in the electrolytic cell 150 and stops the system when overheated to a high temperature.
  • the pressure gauge 192 monitors the pressure in the electrolytic cell 150 to stop the system when it rises above a certain pressure.
  • the flow meter 191 monitors the flow rate of the electrolytic cell 150 to control not only a constant flow rate to flow in, but also to prevent operation if the minimum flow rate does not flow.
  • the filter unit 113 may be installed at the inlet of the ballast water main pipe 110 of the ballast water treatment apparatus 200 for ships, the filter unit 113 is a ballast water main pipe It is preferable to be provided between the inlet of the 110 and the first outlet inlet (111).
  • the filter unit 113 may improve the electrolysis efficiency in the electrolytic cell 150 by removing particulate matter and plankton contained in the ballast water flowing through the ballast water main pipe 110.
  • the filter unit 113 may be any device including a filter commonly used in the art to which the present invention belongs.
  • Ship ballast water treatment apparatus 200 comprises a residual chlorine measuring sensors 170 and 171, the residual chlorine measuring sensors 170 and 171, respectively, the first outlet inlet 111 and the second outlet It may be installed in the tubular structure connected to the inlet (112).
  • the measured value of the residual chlorine measured by the residual chlorine measuring sensor 170 connected to the first outlet 111 may be used to determine the amount of neutralizer input when discharging the ballast water stored in the ballast water storage tank 120.
  • the residual chlorine measured by the residual chlorine measuring sensor 171 connected to the second outlet 112 may be used to adjust the voltage applied to the electrolytic cell 150.
  • the residual chlorine measuring sensors 170 and 171 may be connected to the control device 180 so that information related to the concentration of the residual chlorine measured therefrom may be transmitted to the control device 180.
  • Ship ballast water treatment apparatus 200 is configured to include a neutralizing agent storage tank 181 and a metering pump 183 installed to inject the neutralizing agent through the second outlet.
  • the neutralizing agent storage tank 181 is used to store neutralizing agents such as sodium thiosulfate to neutralize residual chlorine in a harmless state, and the metering pump 183 is used to quantify the neutralizing agent.
  • the neutralizing agent storage tank 181 is configured to include an automatic control valve 182 connected to the control unit 180 by the command of the control unit 180 when the neutralizing agent is to be injected.
  • the automatic control valve 182 may be opened.
  • ballast water passing through the ballast water main pipe 120 is driven by a circulation pump 140 installed in the tubular structure 130 to provide a second outlet inlet installed at the rear end of the ballast water main pipe 120. From 112).
  • the circulation pump 140 is controlled by the controller 180 to introduce an amount of ballast water into the electrolytic cell 150 to generate residual chlorine in an appropriate amount.
  • step 2 the concentration of residual chlorine contained in the ballast water introduced through the second outlet inlet 112 in step 1 is measured using the residual chlorine measuring sensor 171 (step 2).
  • the measured value of residual chlorine contained in the ballast water measured by the residual chlorine measuring sensor 171 is input to the controller 180.
  • the control device 180 After comparing the measured value of the residual chlorine measured from the residual chlorine measurement sensor 171 with a predetermined value input to the controller 180 with the appropriate amount of residual chlorine through the control device 180, the control device The voltage of the rectifier 160 is adjusted by 180 to electrolyze the ballast water introduced into the electrolytic cell 150 (step 3).
  • the measured value of the residual chlorine is the set value If larger, the rectifier 160 applies a low voltage by the controller 180 to drive the electrolytic cell 150. When the measured value of residual chlorine is smaller than the set value, the rectifier 160 is controlled by the controller 180. ) To drive the electrolytic cell 150 by applying a high voltage.
  • the ballast water storage tank 120 of the ballast water treatment apparatus 200 for ships stores ballast water containing residual chlorine in an appropriate concentration.
  • the electrolyzed ballast water is discharged through the first outlet inlet 111 installed at the tip of the ballast water main pipe 11 and transferred together with the ballast water obtained through the ballast water main pipe 110 to ballast.
  • Store in the water storage tank 120 step 4).
  • the number of ballast and the like HClO is mixed with the ballast water that is newly introduced into the ballast water main pipe 110 by the ballast pump 194 can be a storage tank ballast stored in 120 and the OCl -, HClO, etc. this acts as a disinfectant and sterilizing the hazardous microorganisms and bacteria contained in the ballast water.
  • Step 5 is a step for neutralizing residual chlorine contained in the ballast water to an appropriate concentration or less when discharging the ballast water to the outside of the vessel.
  • the residual chlorine measurement sensor 170 from the ballast water flowed into the first outlet inlet 111 concentration of residual chlorine in the ballast water discharged outboard through the ballast water main pipe 110 After the measurement using a), and compared with the preset value input to the control unit 180 according to the discharge standard of residual chlorine, if the residual chlorine measured value is higher than the set value, the neutralizing agent to the second outlet inlet 112 Inject into the ballast water main pipe (110).
  • the command to the automatic control valve 182 connected to the control unit 180 is issued.
  • the neutralizing agent is metered into the second outlet 112 using a metering pump 183 so that an appropriate amount of neutralizing agent is injected, and discharged through the ballast water main pipe 110.
  • the ballast water is neutralized and discharged.
  • the ballast water may be treated and introduced into and discharged from the vessel without generating environmental pollution, compared to the conventional ballast water filtering and chemical treatment methods. .

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Abstract

The present invention pertains to a device and a method for treating ship ballast water, wherein residual chlorine is generated by the electrolysis of a part of introduced ballast water in an electrolytic bath when the ballast water is introduced into the ballast water storage tank of a ship, the result is mixed with the introduced ballast water and introduced and stored in the ballast water storage tank of the ship. Therefore, hazard microorganisms and germs are sterilized by the sterilization effects of the residual chlorine, and the concentration of the residual chlorine is reduced to a suitable degree by injecting a neutralizing agent when discharging the ballast water so as to discharge the ballast water. The method and device for treating ship ballast water according to the present invention can treat ballast water by having superior efficiency without generating environmental pollution when compared to conventional ballast water filtering methods and chemical treatments.

Description

[규칙 제26조에 의한 보정 12.03.2012]　선박용 밸러스트수 처리장치 및 처리방법[Correction 12.03.2012] under Rule 26. Ballast water treatment system and treatment method for ships
본 발명은 선박용 밸러스트수 처리장치 및 처리방법에 관한 것으로, 보다 상세하게는 밸러스트수를 선박의 밸러스트수 저장탱크로 유입시 유입되는 일부 밸러스트수를 전해조에서 전기 분해하여 잔류 염소를 생성한 후, 이를 유입되는 밸러스트수와 혼합시켜 선박의 밸러스트수 저장탱크에 저장함으로써 저장된 밸러스트수에 포함된 잔류 염소의 살균 효과에 의해 유해한 미생물 및 세균을 살균하며, 밸러스트수의 배출시 중화제를 주입하여 적절한 잔류 염소의 농도 이하로 감소시켜 밸러스트수를 배출할 수 있는 선박용 밸러스트수 처리장치 및 처리방법에 관한 것이다.The present invention relates to a ballast water treatment apparatus and treatment method for ships, and more specifically, after the ballast water is introduced into the ballast water storage tank of the vessel by electrolytic decomposition of some ballast water in the electrolytic cell to produce residual chlorine, By mixing with the incoming ballast water and storing it in the ballast water storage tank of the ship, it sterilizes harmful microorganisms and bacteria by the sterilization effect of residual chlorine contained in the stored ballast water. The present invention relates to a ballast water treatment apparatus and treatment method for ships capable of discharging ballast water by reducing the concentration below.
일반적으로 해상에서 운송하는 화물 선박은 유사한 화물의 상호교환을 위하여 왕복 항해하는 선박을 제외하고는 대부분 편도운항을 하여야 하므로 편도운항을 만재 상태로 항해한 후, 귀환 항해시 선박의 균형, 안정성 및 조정성능 향상 등을 위하여 선박의 밑바닥과 좌우에 밸러스트 탱크(ballast tank)라는 별도의 탱크를 설치하고, 여기에 밸러스트수(ballast water)(담수 또는 해수)를 선내로 유입하여 밸러스트 상태로 항해를 하게 된다.In general, the cargo ships that are transported by sea should be operated one-way, except for the ships that return and exchange for similar cargoes. In order to improve performance, a separate tank called a ballast tank is installed on the bottom and left and right sides of the ship, and the ballast water (fresh water or seawater) is introduced into the ship to sail in the ballast state. .
밸러스트수를 선내로 유입하지 않고 선박을 운행할 경우, 선박의 무게 중심이 위쪽에 있어 앞뒤 좌우로 심하게 흔들려 전복될 위험이 있고, 프로팰러가 잠기지 못해 추진 효율이 크게 떨어지는 문제가 생긴다.When operating a ship without inflowing ballast water into the ship, the center of gravity of the ship is on the upper side, so there is a risk of severely shaking from side to side, and the propeller is not locked so that the propulsion efficiency is greatly reduced.
이때 밸러스트 탱크로 유입되는 해수의 양은 배의 크기, 즉 배수량을 기준으로 설정되는데 대형 선박의 경우 1만톤 이상의 해수를 유입하는 경우도 빈번하게 나타난다. 이 과정에서 유입되는 해수에는 미세 해양생물이 포함되는데 선박이 접안한 국가 및 지역의 해수를 유입한 후 타 국가 및 지역으로 이동하여 해수를 방출하는 경우, 해수 유입과정에서 혼입된 미세 해양생물이 타 지역으로 전파되는 문제점을 지니고 있다.At this time, the amount of seawater flowing into the ballast tank is set based on the size of the ship, that is, the amount of drainage. In the case of large vessels, more than 10,000 tons of seawater is frequently introduced. The seawater introduced in this process includes micro-marine life. When the seawater in the country and region where the vessel is docked moves to other countries and regions and releases seawater, the micro-marine life mixed in the seawater inflow process There is a problem spread to the region.
이러한 해상생물의 이동은 자연계에서는 거의 발생하지 않는 현상으로 대표 생물종의 변동, 적조발생 등의 생태계 교란현상이 발생하게 되므로 매우 심각한 문제를 야기시킨다.The movement of marine organisms is a phenomenon that rarely occurs in the natural world, causing ecosystem disturbances such as fluctuations in representative species and red tide.
이에 따라 국제해사기구(International Maritime Organization: IMO)에서는 2004년 선박 내 밸러스트 수 관리협약을 채택해, 배출되는 밸러스트수의 수질 기준을 마련했고 2011년부터 협약을 순차적으로 적용키로 결정했다. As a result, the International Maritime Organization (IMO) adopted the 2004 Ballast Water Management Convention, established the water quality standards for discharged ballast water, and decided to apply the agreement sequentially starting in 2011.
특히, 외래해양생물로 인해 자국의 해양환경에 막대한 피해를 입었다고 주장하는 미국, 호주, 캐나다 등의 적극적인 요청 및 여러 차례에 걸친 관련 국제회의를 통해 국제해사기구(IMO)에서는 2004년 2월 ‘선박 밸러스트 수와 침전물 관리 국제협약’을 채택했다.In particular, the International Maritime Organization (IMO) announced in February 2004, through active requests from the United States, Australia, and Canada, and several related international conferences, that allegedly suffered enormous damage to its marine environment. International Convention on Ship Ballast Water and Sediment Management.
이에 대응하기 위한 다양한 방식의 밸러스트수 처리장치 개발 및 사업화 선점을 위한 노력이 세계 각국에서 진행되고 있으며, 이러한 방법으로는 필터링법, 자외선 소독법, 고온 가열법 등 물리, 화학, 전기적인 처리방법과 장치가 개발되고 있다. Efforts to develop and commercialize ballast water treatment systems in various ways to cope with this are being conducted in various countries. Such methods include physical, chemical, and electrical treatment methods and devices such as filtering, ultraviolet disinfection, and high temperature heating. Is being developed.
밸러스트 탱크 내부의 미세 해양생물을 제거하기 위하여 유입되는 해수를 필터링하는 방법은 유입 해수량이 줄어들게 되므로 처리용량의 문제가 발생하고 필터의 메쉬(mesh)의 한계가 있으므로 완전한 처리가 이루어지지 못하는 문제가 있다. 또한 약품을 밸러스트수에 투입하는 방법은 유입된 해양생물을 제거할 수 있는 반면 밸러스트 탱크 내에 잔류하는 유독성 화학물질이 해수 방출시에 부근 수역을 오염시켜 환경파괴가 발생되는 문제점이 있다.The method of filtering the incoming seawater in order to remove the micro marine organisms in the ballast tank has a problem of processing capacity because the amount of incoming seawater is reduced, and there is a problem that complete processing cannot be performed because there is a limitation of the mesh of the filter. . In addition, the method of injecting the chemical into the ballast water can remove the introduced marine organisms, while the toxic chemicals remaining in the ballast tanks contaminate nearby waters when the seawater is discharged, causing environmental damage.
상술한 문제점을 해결하기 위하여, 본 발명자들은 선박 내로 밸러스트수의 유입시 일부 밸러스트수를 전해조에서 전기 분해하고, 이에 따라 생성된 잔류 염소가 포함된 밸러스트수를 선박의 밸러스트 탱크로 유입함으로써 잔류 염소의 살균 효과에 의해 유해한 미생물 및 세균을 살균할 수 있으며, 밸러스트수의 배출시 중화제를 주입하여 잔류 염소의 농도를 적정량 이하로 감소시켜 밸러스트수를 배출할 수 있는 장치 및 방법을 개발하기에 이르렀다.In order to solve the above-mentioned problems, the present inventors electrolyze some ballast water in an electrolytic cell upon inflow of ballast water into a vessel, and induce a ballast water containing residual chlorine generated therein into the ballast tank of the vessel. The bactericidal effect can be used to sterilize harmful microorganisms and bacteria, and when the ballast water is discharged, a neutralizing agent is injected to reduce the concentration of residual chlorine to an appropriate amount or less to develop a device and a method for discharging the ballast water.
본 발명의 목적은 밸러스트수의 필터링법, 화학적 약품처리법에 비해 처리효과가 우수하며, 환경오염을 방지할 수 있는 선박용 밸러스트수 처리장치 및 처리방법을 제공하는 데 있다.An object of the present invention is to provide a ballast water treatment apparatus and treatment method for marine vessels that can have an excellent treatment effect compared to the filtering method of the ballast water, chemical treatment method, and can prevent environmental pollution.
본 발명의 다른 목적은 밸러스트수 저장탱크의 내부로 유입되는 밸러스트수의 일부를 전해조에서 전기 분해하여 밸러스트수에 다시 주입시킴으로써 전기 분해에 의해 생성된 잔류 염소의 살균 효과에 의해 유해한 미생물 및 세균을 살균할 수 있으며, 밸러스트수의 선외 배출시 중화제를 주입하여 잔류 염소의 농도를 적정량 이하로 감소시켜 밸러스트수를 배출할 수 있는 선박용 밸러스트수 처리장치 및 처리방법을 제공하는 데 있다.It is another object of the present invention to sterilize harmful microorganisms and bacteria by the sterilization effect of residual chlorine produced by electrolysis by electrolyzing a part of ballast water flowing into the ballast water storage tank in an electrolytic cell and injecting it back into the ballast water. It is possible to provide a ballast water treatment apparatus and treatment method for ships that can discharge the ballast water by reducing the concentration of residual chlorine to below the appropriate amount by injecting a neutralizer during the outboard discharge of the ballast water.
상기 목적을 달성하기 위하여, 본 발명은 밸러스트수 저장탱크와 연결된 밸러스트수 메인 배관에 설치되는 선박용 밸러스트수 처리장치로서,In order to achieve the above object, the present invention is a ballast water treatment apparatus for ships installed in the ballast water main pipe connected to the ballast water storage tank,
상기 밸러스트수 메인 배관의 선단에 설치되는 제1 유출입구 및 밸러스트수 메인 배관의 후단에 설치되는 제2 유출입구;A first outlet inlet installed at the front end of the ballast water main pipe and a second outlet inlet installed at a rear end of the ballast water main pipe;
상기 제1 유출입구 및 제2 유출입구 사이를 연결하며 밸러스트수를 이송하는 관구조체;A tubular structure connecting the first outlet and the second outlet to convey ballast water;
상기 관구조체에 연결되어 밸러스트수 메인 배관으로부터 일부 밸러스트수를 유입 또는 배출하도록 구동되는 순환펌프;A circulation pump connected to the pipe structure and driven to inflow or discharge some ballast water from the ballast water main pipe;
상기 순환펌프에 의해 유입된 일부 밸러스트수를 전기 분해하는 전극 세트가 구비된 전해조;An electrolytic cell having an electrode set configured to electrolyze a portion of ballast water introduced by the circulation pump;
상기 전해조와 연결되어 전해조에 인가되는 전압을 조절하는 정류기;A rectifier connected to the electrolytic cell to adjust a voltage applied to the electrolytic cell;
상기 제1 유출입구 및 제2 유출입구에 연결되어 잔류 염소의 양을 측정하는 잔류 염소 측정센서;A residual chlorine measuring sensor connected to the first outlet and the second outlet to measure an amount of residual chlorine;
상기 정류기 및 잔류 염소 측정센서와 연결되는 제어장치; 및A control device connected to the rectifier and the residual chlorine measuring sensor; And
상기 제2 유출입구로 중화제를 주입하기 위해 설치된 중화제 저장탱크 및 계량 펌프를 포함하는 선박용 밸러스트수 처리장치를 제공한다.Provided is a ballast water treatment apparatus for ships comprising a neutralizer storage tank and a metering pump installed to inject the neutralizer into the second outlet.
본 발명의 일 실시형태에 있어서, 상기 선박용 밸러스트수 처리장치의 상기 제1 유출입구와 제2 유출입구 사이를 연결하는 관구조체에는 온도계, 압력계 및 유량계가 연결되며, 상기 온도계, 압력계 및 유량계는 상기 제어장치와 연결될 수 있다.In one embodiment of the invention, the tubular structure connecting between the first outlet and the second outlet of the ballast water treatment device for ships is connected to a thermometer, pressure gauge and flow meter, the thermometer, pressure gauge and flow meter is Can be connected with the control unit.
상기 밸러스트수 메인 배관의 입구부에는 필터 유닛이 설치되는 것이 바람직하다.It is preferable that a filter unit is installed at the inlet of the ballast water main pipe.
본 발명에서 사용하는 전해조에는 가스 벤트가 설치되어 밸러스트수를 전기 분해하여 발생되는 수소를 가스 벤트를 통해 전해조의 외부로 배출할 수 있다.In the electrolytic cell used in the present invention, a gas vent may be installed to discharge hydrogen generated by electrolysis of the ballast water to the outside of the electrolytic cell through the gas vent.
또한, 본 발명은,In addition, the present invention,
밸러스트수 저장탱크와 연결된 밸러스트수 메인 배관의 선단 및 후단에 설치된 제1 유출입구 및 제2 유출입구 중 상기 제2 유출입구로부터 일부 밸러스트수를 유입하는 단계(단계 1);Injecting some ballast water from the second outlet of the first outlet and the second outlet, which are installed at the front and rear ends of the ballast water main pipe connected to the ballast water storage tank (step 1);
상기 단계 1에서 제2 유출입구를 통해 유입된 밸러스트수의 잔류 염소의 양을 잔류 염소 측정센서를 사용하여 측정하는 단계(단계 2);Measuring the amount of residual chlorine in the ballast water introduced through the second outlet in step 1 by using a residual chlorine measuring sensor (step 2);
상기 잔류 염소 측정센서로부터 측정된 잔류 염소 측정값과 제어장치에 잔류 염소의 적정량으로 기입력된 설정값을 제어장치를 통해 비교한 후, 제어장치에 의해 전해조와 연결된 정류기의 전압이 조절되어 전해조에 유입된 밸러스트수를 전기 분해하는 단계(단계 3); After comparing the residual chlorine measurement value measured by the residual chlorine measuring sensor and a predetermined value inputted as an appropriate amount of residual chlorine to the control device through the control device, the voltage of the rectifier connected to the electrolytic cell is controlled by the control device to the electrolytic cell. Electrolyzing the introduced ballast water (step 3);
상기 전기 분해된 밸러스트수를 밸러스트수 메인 배관의 선단에 설치된 제1 유출입구를 통해 배출하여 밸러스트수 메인 배관을 통해 입수되는 밸러스트수와 함께 이송하여 밸러스트수 저장탱크에 저장하는 단계(단계 4); 및Discharging the electrolyzed ballast water through a first outlet inlet installed at the tip of the ballast water main pipe, transferring the ballast water together with the ballast water received through the ballast water main pipe, and storing the ballast water in a ballast water storage tank (step 4); And
상기 밸러스트수 저장탱크에 저장된 밸러스트수를 배출하는 과정에서 배출되는 밸러스트수를 일부 유입하여 잔류 염소의 양을 잔류 염소 측정기를 사용하여 측정한 후, 잔류 염소 측정값과 제어장치에 잔류 염소의 적정량으로 기입력된 설정값을 제어장치를 통해 비교하여 잔류 염소 측정값이 설정값보다 높은 경우에 중화제를 밸러스트수 메인 배관으로 주입하는 단계(단계 5)를 포함하는 선박용 밸러스트수 처리방법을 제공한다.After the ballast water discharged in the process of discharging the ballast water stored in the ballast water storage tank, the amount of residual chlorine is measured using a residual chlorine meter, and then the residual chlorine measured value and the appropriate amount of residual chlorine are added to the controller. The present invention provides a method for treating ballast water for ships comprising comparing a predetermined value set through a control device and injecting a neutralizing agent into the ballast water main pipe when the residual chlorine measurement value is higher than the set value (step 5).
상기 단계 3에서 상기 잔류 염소 측정값이 바람직한 잔류 염소의 설정값보다 낮은 경우 제어장치는 정류기의 전압을 높여 전해조에 유입된 밸러스트수를 전기 분해하며, 상기 잔류 염소 측정값이 바람직한 잔류 염소의 설정값보다 높은 경우 제어장치는 정류기의 전압을 낮추어 전해조에 유입된 밸러스트수를 전기 분해함으로써 밸러스트수 저장탱크에 저장된 밸러스트수의 잔류 염소의 농도를 설정값과 유사한 수치로 조절할 수 있다.If the measured residual chlorine value is lower than the desired residual chlorine value in step 3, the controller increases the voltage of the rectifier to electrolyze the ballast water introduced into the electrolytic cell, and the residual chlorine measured value is the set value of the preferred residual chlorine. In higher cases, the control unit can lower the voltage of the rectifier to electrolyze the ballast water introduced into the electrolyzer, thereby adjusting the concentration of residual chlorine in the ballast water storage tank to a value similar to the set value.
상기 단계 5에서 잔류 염소 측정값이 바람직한 잔류 염소의 설정값보다 높은 경우 제어장치는 제어장치와 연결된 자동제어밸브에 명령을 내려 중화제 저장탱크를 개방하고 계량 펌프를 통해 제2 유출입구를 통해 중화제가 밸러스트수 메인 배관으로 주입됨으로써, 밸러스트수 메인 배관을 통해 배출되는 밸러스트수의 잔류 염소의 농도를 적정량 이하로 감소시킬 수 있다.If the residual chlorine measurement in step 5 is higher than the desired residual chlorine, the control unit commands the automatic control valve connected to the control unit to open the neutralizing agent storage tank and the neutralizing agent is discharged through the second outlet through the metering pump. By being injected into the ballast water main pipe, it is possible to reduce the concentration of residual chlorine in the ballast water discharged through the ballast water main pipe to an appropriate amount or less.
본 발명은 밸러스트수 저장탱크 내부로 유입되는 밸러스트수의 일부를 전해조에서 전기 분해하여 밸러스트수 저장탱크로 이송되는 밸러스트수에 다시 주입시킴으로써 전기 분해에 의해 생성된 잔류 염소의 살균 효과에 의해 밸러스트수에 포함된 유해한 미생물 및 세균을 살균하며, 밸러스트수의 선외 배출시 중화제를 주입하여 잔류 염소의 농도를 적정량 이하로 감소시켜 밸러스트수를 배출할 수 있는 선박용 밸러스트수 처리장치 및 처리방법을 제공함으로써 종래의 밸러스트수의 필터링법, 화학적 약품처리법에 비해 환경오염을 발생시키지 않고 우수한 처리효율로 밸러스트수를 처리할 수 있다.According to the present invention, a part of ballast water flowing into the ballast water storage tank is electrolyzed in an electrolytic cell and re-injected into the ballast water transferred to the ballast water storage tank to the ballast water by the sterilization effect of residual chlorine generated by electrolysis. By disinfecting harmful microorganisms and bacteria contained in the vessel and injecting neutralizing agent during outboard discharge of ballast water, it is possible to reduce the concentration of residual chlorine below an appropriate amount to provide a ballast water treatment apparatus and treatment method for ships that can discharge ballast water. Compared to the ballast water filtering and chemical treatment methods, the ballast water can be treated with excellent treatment efficiency without generating environmental pollution.
도 1은 본 발명에 따른 선박용 밸러스트수 처리장치를 사용하여 처리된 밸러스트수가 선박의 밑바닥과 선박의 좌우에 설치된 밸러스트수 저장탱크에 주입되는 구조를 개략적으로 나타낸 선박의 단면도이다.1 is a cross-sectional view of a ship schematically showing a structure in which the ballast water treated using the ballast water treatment apparatus for ships according to the present invention is injected into a ballast water storage tank installed on the bottom and left and right sides of the ship.
도 2는 도 1의 A-A` 구간에 설치된 본 발명에 따른 선박용 밸러스트수 처리장치의 구조를 개략적으로 나타낸 도면이다.Figure 2 is a schematic view showing the structure of the ballast water treatment apparatus for ships according to the present invention installed in section A-A` of FIG.
도 3은 본 발명에 따른 선박용 밸러스트수 처리방법의 공정 흐름도이다.3 is a process flowchart of the ballast water treatment method for ships according to the present invention.
첨부된 도면을 참조하여 본 발명에 따른 실시예를 상세히 설명한다. 이하, 본 발명에 따른 실시예를 설명함에 있어, 그리고 각 도면의 구성요소들에 참조부호를 부가함에 있어, 동일한 구성요소들에 대해서는 비록 다른 도면상에 표시되더라도 가능한 한 동일한 부호를 부가하였다.With reference to the accompanying drawings will be described embodiments of the present invention; In the following description of embodiments according to the present invention, and in adding reference numerals to the components of each drawing, the same reference numerals are added to the same components as much as possible even though they are shown in different drawings.
본 발명은 밸러스트수 저장탱크(120)와 연결된 밸러스트수 메인 배관(110)에 설치되는 선박용 밸러스트수 처리장치(200)로서,The present invention is a ballast water treatment apparatus for ships 200 is installed in the ballast water main pipe 110 connected to the ballast water storage tank 120,
밸러스트수 메인 배관(110)의 선단에 설치되는 제1 유출입구(111) 및 밸러스트수 메인 배관(110)의 후단에 설치되는 제2 유출입구(112);A first outlet inlet 111 installed at the front end of the ballast water main pipe 110 and a second outlet inlet 112 installed at a rear end of the ballast water main pipe 110;
상기 제1 유출입구(111) 및 제2 유출입구(112) 사이를 연결하며 밸러스트수를 이송하는 관구조체(130);A tubular structure (130) connecting the first outlet (111) and the second outlet (112) to transfer ballast water;
상기 관구조체(130)에 연결되어 밸러스트수 메인 배관(110)으로부터 일부 밸러스트수를 유입 또는 배출하도록 구동되는 순환펌프(140);A circulation pump 140 connected to the pipe structure 130 and driven to introduce or discharge some ballast water from the ballast water main pipe 110;
상기 순환펌프(140)에 의해 유입된 밸러스트수를 전기 분해하는 전극 세트가 구비된 전해조(150);An electrolyzer 150 having an electrode set for electrolyzing the ballast water introduced by the circulation pump 140;
상기 전해조(150)와 연결되어 전해조(150)에 인가되는 전압을 조절하는 정류기(160);A rectifier 160 connected to the electrolyzer 150 to adjust a voltage applied to the electrolyzer 150;
상기 제1 유출입구(111) 및 제2 유출입구(112)에 연결되어 잔류 염소의 농도를 측정하는 잔류 염소 측정센서(170 및 171);Residual chlorine measuring sensors (170 and 171) connected to the first outlet (111) and the second outlet (112) to measure the concentration of residual chlorine;
상기 정류기(160) 및 잔류 염소 측정센서(170 및 171)와 연결되는 제어장치(180); 및A controller 180 connected to the rectifier 160 and residual chlorine measuring sensors 170 and 171; And
상기 밸러스트수 메일 배관(110)으로 중화제를 주입하기 위해 설치된 중화제 저장탱크(181) 및 계량 펌프(183);A neutralizer storage tank 181 and a metering pump 183 installed to inject the neutralizer into the ballast water mail pipe 110;
를 포함하는 선박용 밸러스트수 처리장치(200)를 제공한다.It provides a ship ballast water treatment apparatus 200 comprising a.
도 1 및 도 2를 참조하면, 본 발명에 따른 선박용 밸러스트수 처리장치(200)는 선박(10)으로 밸러스트수를 유입하여 밸러스트수 저장탱크로 유입하는 밸러스트수 메인 배관(110) 사이(도 1에 도시된 A-A′구간)에 설치되어 밸러스트수 저장탱크(120)의 내부로 유입되는 밸러스트수의 일부를 전해조(150)에서 전기 분해하여 밸러스트수에 다시 주입시킴으로써 전기 분해에 의해 생성된 잔류 염소의 살균 효과에 의해 유해한 미생물 및 세균을 살균할 수 있다.1 and 2, the vessel ballast water treatment apparatus 200 according to the present invention between the ballast water main pipe (110) flowing the ballast water into the ballast water storage tank inlet to the vessel 10 (Fig. 1 Of the remaining chlorine generated by electrolysis by electrolyzing part of the ballast water introduced into the ballast water storage tank 120 and injecting the ballast water back into the ballast water. By the bactericidal effect, harmful microorganisms and bacteria can be sterilized.
보다 상세하게는, 선박(10)이 출항전 밸러스트 펌프(194)를 구동하여 밸러스트수 메인 배관(110)을 통해 밸러스트수를 유입하여 선박(10) 내의 밸러스트수 저장탱크(120)에 저장하는 경우, 본 발명에 따른 선박용 밸러스트수 처리장치(200)는 밸러스트수가 밸러스트수 메인 배관(110)을 통과하는 과정에서 일부 밸러스트수를 유입하여 전해조(150)에서 전기 분해를 수행하여 생성된 잔류 염소가 포함된 밸러스트수를 밸러스트수 메인 배관(110)으로 유입되는 밸러스트수와 함께 밸러스트수 저장탱크(120)로 이송하여 저장함으로써 전기 분해에 의해 생성된 잔류 염소의 살균 효과에 의해 밸러스트수 저장탱크(120)에 저장된 밸러스트수에 포함된 유해한 미생물 및 세균을 살균할 수 있다.In more detail, when the vessel 10 drives the ballast pump 194 before sailing to flow the ballast water through the ballast water main pipe 110 to store in the ballast water storage tank 120 in the vessel 10 , The ballast water treatment apparatus 200 for ships according to the present invention includes residual chlorine generated by performing electrolysis in the electrolytic cell 150 by introducing some ballast water in the course of passing the ballast water through the ballast water main pipe 110. The ballast water storage tank 120 is transferred to the ballast water storage tank 120 and stored together with the ballast water flowing into the ballast water main pipe 110 by the sterilization effect of residual chlorine generated by electrolysis. It can sterilize harmful microorganisms and bacteria contained in ballast water stored in.
본 발명에서 밸러스트수 메인 배관(110)의 선단은 밸러스트수가 유입되는 입구 부분을 의미하는 것이며, 밸러스트수 메인 배관(110)의 후단은 밸러스트수 메인 배관(110)의 선단의 반대 방향인 밸러스트수 저장탱크(120)와 연결되는 부분을 의미하는 것으로 정의한다.In the present invention, the front end of the ballast water main pipe 110 means an inlet portion into which the ballast water flows, and the rear end of the ballast water main pipe 110 stores the ballast water in a direction opposite to the front end of the ballast water main pipe 110. Defined as meaning the part connected to the tank 120.
도 2를 참조하면, 본 발명에 따른 선박용 밸러스트수 처리장치(200)에 있어서 밸러스트 펌프(194)에 의해 유입되어 밸러스트수 메인 배관(110)을 통과하는 밸러스트수는 순환펌프(140)에 의해 밸러스트수 메인 배관(110)의 후단에 설치된 제2 유출입구(112)로부터 일부 유입되어 전해조(150)로 이송되며, 상기 제1 유출입구(111), 제2 유출입구(112), 전해조(150) 및 순환펌프(140)는 관구조체(130)에 의해 연결되어 밸러스트수가 이송될 수 있는 구조를 가진다.2, in the ship ballast water treatment apparatus 200 according to the present invention, the ballast water introduced by the ballast pump 194 and passing through the ballast water main pipe 110 is a ballast by the circulation pump 140. Partly flowed from the second outlet 112 installed at the rear end of the male main pipe 110 is transferred to the electrolytic cell 150, the first outlet 111, the second outlet 112, the electrolytic cell 150 And the circulation pump 140 is connected by the tubular structure 130 has a structure in which the ballast water can be transferred.
밸러스트수 메인 배관(110)의 후단에 설치된 제2 유출입구(112)로부터 유입된 일부 밸러스트수는 전해조(150)로 이송된 후, 전해조(150)의 양극과 음극에서 각각 화학식 1 및 화학식 2의 반응식에 따른 반응이 일어나고, 전극들 사이에서 화학식 3에 따른 반응이 일어나 HOCl, OCl-의 살균제를 생산할 수 있다.Some ballast water introduced from the second outlet inlet 112 installed at the rear end of the ballast water main pipe 110 is transferred to the electrolytic cell 150, and then, at the anode and the cathode of the electrolytic cell 150, A reaction according to the scheme may occur, and a reaction according to formula 3 may occur between the electrodes to produce a fungicide of HOCl, OCl − .
[화학식 1][Formula 1]
양극 반응: 2Cl- → Cl2 (dissolved) + 2e-Anode reaction: 2Cl - → Cl 2 (dissolved ) + 2e-
[화학식 2][Formula 2]
음극 반응: 2H2O + 2e- → 2OH- + H2(gas)Cathode reaction: 2H 2 O + 2e- → 2OH - + H 2 (gas)
[화학식 3][Formula 3]
Cl2 + H2O → HOCl + H+ + Cl- (낮은 pH) Cl 2 + H 2 O → HOCl + H + + Cl - ( lower pH)
HOCl → H+ + OCl- (높은 pH)HOCl → H + + OCl - (High pH)
상기 화학식 1에 나타난 바와 같이 양극에서는 전기 분해에 의해 용존 상태의 염소(free chlorine)가 발생되며, 음극에서는 수소 가스가 발생되며, 최종적으로 살균제로서 역할을 하는 HOCl, OCl- 등의 잔류 염소가 생성될 수 있다.In the positive electrode, as shown in Formula 1, and the dissolved state chlorine (free chlorine) by electrolysis occurs, the negative electrode and the hydrogen gas generated, and finally, HOCl, OCl, which serves as a sterilizing agent - the residual chlorine, such as produced Can be.
이와 같이 본 발명에 따른 선박용 밸러스트수 처리장치(200)는 밸러스트수 메인 배관(110)의 후단에 설치된 제2 유출입구(112)으로부터 일부 밸러스트수를 유입한 후, 전해조(150)에서 전기 분해하여 생성된 잔류 염소가 포함된 밸러스트수를 밸러스트수 메인 배관(110)의 선단에 설치된 제1ㅇ유입관(111)을 통해 배출시켜 밸러스트수 메인 배관(110)으로 유입되는 밸러스트수와 함께 밸러스트수 저장탱크(120)로 이송시킬 수 있는 구조를 가짐으로써, 살균제로 작용하는 잔류 염소에 의해 밸러스트수 메인 배관(110)에 이끼, 물때 등이 축적되는 것을 방지할 수 있으며, 전기 분해되지 않은 밸러스트수와 혼합되어 밸러스트수 저장탱크(120)에 보관되는 경우 밸러스트수에 포함된 유해한 미생물 및 세균을 살균할 수 있다.As described above, the ship ballast water treatment apparatus 200 according to the present invention inflows some ballast water from the second outlet inlet 112 installed at the rear end of the ballast water main pipe 110, and then electrolyzes the electrolytic cell in the electrolytic cell 150. The ballast water containing the generated residual chlorine is discharged through the first inlet pipe 111 installed at the tip of the ballast water main pipe 110 to store the ballast water together with the ballast water flowing into the ballast water main pipe 110. By having a structure that can be transferred to the tank 120, it is possible to prevent the accumulation of moss, scale, etc. in the ballast water main pipe 110 by the residual chlorine acting as a disinfectant, and the ballast water that is not electrolyzed When mixed and stored in the ballast water storage tank 120, it can sterilize harmful microorganisms and bacteria contained in the ballast water.
상기 전해조(150)에는 전기 분해할 수 있는 전극 세트가 구비되며, 상기 전극 세트는 전기 분해할 수 있는 양극과 음극이 전해조 내에 일정간격 이격되어 배치될 수 있다.The electrolytic cell 150 is provided with an electrode set that can be electrolyzed, and the electrode set may be disposed to be spaced apart at a predetermined interval in the electrolyzer, the positive electrode and the negative electrode.
본 발명의 일 실시형태에 있어서, 상기 전해조(150)의 전극 세트의 전극은 밸러스트수의 처리량을 고려하여 면적, 개수 및 단수를 조절하여 제조될 수 있으며, 밸러스트수의 흐름 방향과 수평하게 전해조 내에 배치되는 것이 전극 세트의 내구성에 있어서 바람직하다.In one embodiment of the present invention, the electrode of the electrode set of the electrolytic cell 150 can be manufactured by adjusting the area, number and number of stages in consideration of the throughput of the ballast water, and in the electrolytic cell in parallel with the flow direction of the ballast water It is preferable to arrange | position in terms of durability of an electrode set.
상기 전해조(150)에서 전극 세트를 감싸는 챔버는 순환펌프(140)의 강한 수압에 견디는 강도 조건, 해수의 염분 및 전기 분해시 발생되는 라디칼 등 산화성 물질에 견딜 수 있는 내산화성 조건 및 전류가 통하지 않는 부도체의 조건을 만족시키는 재질로 제작되어야 한다.The chamber surrounding the electrode set in the electrolytic cell 150 is a strength condition to withstand the strong hydraulic pressure of the circulation pump 140, oxidation resistance conditions and currents that can withstand oxidizing materials such as salts of seawater and radicals generated during electrolysis do not pass through It shall be made of a material that satisfies the condition of the insulator.
본 발명의 선박용 밸러스트수 처리장치(200)에서 사용하는 전해조(150)에는 정류기(160)가 연결되고, 상기 정류기(160)는 제어장치(180)와 연결된 구조를 가진다.The rectifier 160 is connected to the electrolytic cell 150 used in the ballast water treatment apparatus 200 for ships of the present invention, and the rectifier 160 has a structure connected to the control device 180.
상기 제어장치(180)는 제2 유출입구(112)와 연결된 관구조체에 설치된 잔류 염소 측정센서(171)에 의해 측정된 잔류 염소의 측정값과 제어장치(180)에 잔류 염소의 적정량으로 기입력된 설정값을 비교하여 밸러스트수 저장탱크(120)에 적절한 농도의 잔류 염소가 포함된 밸러스트수가 저장되도록 정류기(160)를 제어하는 역할을 한다.The control unit 180 is inputted with the measured value of the residual chlorine measured by the residual chlorine measurement sensor 171 installed in the pipe structure connected to the second outlet inlet 112 and the appropriate amount of the residual chlorine to the control unit 180. It compares the set value and serves to control the rectifier 160 to store the ballast water containing the residual chlorine of the appropriate concentration in the ballast water storage tank 120.
본 발명의 일 실시형태에 있어서, 상기 전해조(150)에서는 가스 벤트(미도시)가 형성되어 전기 분해시 발생되는 수소를 전해조(150)의 출구에서 폭발 방지를 위하여 대기로 배출(벤트)시킬 수 있다.In an embodiment of the present invention, a gas vent (not shown) is formed in the electrolytic cell 150 to discharge (vent) the hydrogen generated during electrolysis to the atmosphere to prevent explosion at the outlet of the electrolytic cell 150. have.
본 발명에 따른 선박용 밸러스트수 처리장치(200)는 온도계(193), 압력계(192), 유량계(191) 및 잔류 염소 측정센서(170 및 171)의 정보를 입력 받아 적절한 농도의 잔류 염소가 포함된 밸러스트수가 밸러스트수 메인 배관(110)을 통해 밸러스트수 저장탱크(120)에 주입되도록 제어하는 제어장치(180)를 포함하여 구성된다.Ship ballast water treatment apparatus 200 according to the present invention receives the information of the thermometer 193, pressure gauge 192, flow meter 191 and residual chlorine measuring sensors 170 and 171 containing residual chlorine of an appropriate concentration It is configured to include a control device 180 for controlling the ballast water is injected into the ballast water storage tank 120 through the ballast water main pipe 110.
여기서, 온도계(193), 압력계(192) 및 유량계(191)는 제어장치(180)와 연결되어 전해조(150)를 보호하기 위한 안전장치이다. 즉, 온도계(193)는 전해조(150) 내의 온도를 모니터링 하여 고온으로 과열될 경우 시스템을 정지시킨다. 또한, 압력계(192)는 전해조(150) 내의 압력을 모니터링 하여 일정 압력이상으로 상승할 경우 시스템을 정지시킨다. 또한, 유량계(191)는 전해조(150)의 유량을 모니터링 하여 일정한 유량이 유입되도록 제어할 뿐만 아니라 최소유량이 유입되지 않으면 운전이 되지 않도록 한다. Here, the thermometer 193, the pressure gauge 192 and the flow meter 191 is connected to the control device 180 is a safety device for protecting the electrolytic cell 150. That is, the thermometer 193 monitors the temperature in the electrolytic cell 150 and stops the system when overheated to a high temperature. In addition, the pressure gauge 192 monitors the pressure in the electrolytic cell 150 to stop the system when it rises above a certain pressure. In addition, the flow meter 191 monitors the flow rate of the electrolytic cell 150 to control not only a constant flow rate to flow in, but also to prevent operation if the minimum flow rate does not flow.
본 발명의 일 실시형태에 있어서, 선박용 밸러스트수 처리장치(200)의 밸러스트수 메인 배관(110)의 입구부에는 필터 유닛(113)이 설치될 수 있으며, 필터 유닛(113)은 밸러스트수 메인 배관(110)의 입구와 제1 유출입구(111)의 사이에 설치되는 것이 바람직하다.In one embodiment of the present invention, the filter unit 113 may be installed at the inlet of the ballast water main pipe 110 of the ballast water treatment apparatus 200 for ships, the filter unit 113 is a ballast water main pipe It is preferable to be provided between the inlet of the 110 and the first outlet inlet (111).
상기 필터 유닛(113)은 밸러스트수 메인 배관(110)을 통해 유입되는 밸러스트수에 포함된 입자성 물질, 플랑크톤을 제거하여 상기 전해조(150)에서의 전기 분해 효율을 향상시킬 수 있다.The filter unit 113 may improve the electrolysis efficiency in the electrolytic cell 150 by removing particulate matter and plankton contained in the ballast water flowing through the ballast water main pipe 110.
상기 필터 유닛(113)으로는 본 발명이 속하는 기술분야에서 통상적으로 사용되는 필터를 포함한 장치를 제한없이 사용할 수 있다.The filter unit 113 may be any device including a filter commonly used in the art to which the present invention belongs.
본 발명에 따른 선박용 밸러스트수 처리장치(200)는 잔류 염소 측정센서(170 및 171)를 포함하여 구성되며, 잔류 염소 측정센서(170 및 171)는 각각 제1 유출입구(111) 및 제2 유출입구(112)에 연결된 관구조체에 설치될 수 있다.Ship ballast water treatment apparatus 200 according to the present invention comprises a residual chlorine measuring sensors 170 and 171, the residual chlorine measuring sensors 170 and 171, respectively, the first outlet inlet 111 and the second outlet It may be installed in the tubular structure connected to the inlet (112).
상기 제1 유출입구(111)와 연결된 잔류 염소 측정센서(170)에서 측정된 잔류 염소의 측정값은 밸러스트수 저장탱크(120)에 저장된 밸러스트수를 방출하는 경우 중화제 투입량을 결정하기 위해 사용될 수 있으며, 상기 제2 유출입구(112)와 연결된 잔류 염소 측정센서(171)에서 측정된 잔류 염소의 측정값은 전해조(150)에 인가되는 전압을 조절하기 위해 사용될 수 있다.The measured value of the residual chlorine measured by the residual chlorine measuring sensor 170 connected to the first outlet 111 may be used to determine the amount of neutralizer input when discharging the ballast water stored in the ballast water storage tank 120. The residual chlorine measured by the residual chlorine measuring sensor 171 connected to the second outlet 112 may be used to adjust the voltage applied to the electrolytic cell 150.
상기 잔류 염소 측정센서(170 및 171)는 제어장치(180)와 연결되어 이로부터 측정된 잔류 염소의 농도와 관련된 정보가 제어장치(180)에 전달될 수 있다.The residual chlorine measuring sensors 170 and 171 may be connected to the control device 180 so that information related to the concentration of the residual chlorine measured therefrom may be transmitted to the control device 180.
본 발명에 따른 선박용 밸러스트수 처리장치(200)는 상기 제2 유출입구를 통해 중화제를 주입하기 위해 설치된 중화제 저장탱크(181) 및 계량 펌프(183)를 포함하여 구성된다.Ship ballast water treatment apparatus 200 according to the present invention is configured to include a neutralizing agent storage tank 181 and a metering pump 183 installed to inject the neutralizing agent through the second outlet.
상기 중화제 저장탱크(181)는 잔류 염소를 무해한 상태로 중화하기 위한 소듐 티오설페이트(sodium thiosulfate) 등의 중화제를 저장하기 위해 사용되며, 상기 계량 펌프(183)는 중화제를 정량 투입하기 위해 사용된다.The neutralizing agent storage tank 181 is used to store neutralizing agents such as sodium thiosulfate to neutralize residual chlorine in a harmless state, and the metering pump 183 is used to quantify the neutralizing agent.
본 발명의 일 실시형태에 있어서, 상기 중화제 저장탱크(181)는 제어장치(180)와 연결된 자동제어밸브(182)를 포함하여 구성됨으로써 중화제가 투입되어야 하는 경우 제어장치(180)의 명령에 의해 자동제어밸브(182)가 개방될 수 있다.In one embodiment of the present invention, the neutralizing agent storage tank 181 is configured to include an automatic control valve 182 connected to the control unit 180 by the command of the control unit 180 when the neutralizing agent is to be injected. The automatic control valve 182 may be opened.
하기에서 도 3을 참조하여 선박용 밸러스트수 처리장치를 사용한 밸러스트수의 처리방법을 구체적으로 설명한다.Hereinafter, a method of treating ballast water using a ballast water treatment apparatus for ships will be described in detail.
우선, 밸러스트수 탱크(120)와 연결된 밸러스트수 메인 배관(120)의 선단 및 후단에 설치된 제1 유출입구(111) 및 제2 유출입구(112) 중 상기 제2 유출입구(112)로부터 일부 밸러스트수를 유입한다(단계 1).First, a part of ballast from the second outlet 112 of the first outlet 111 and the second outlet 112 installed at the front and rear ends of the ballast water main pipe 120 connected to the ballast water tank 120. Inflow of water (step 1).
보다 상세하게는, 밸러스트수 메인 배관(120)을 통과하는 밸러스트수 일부를 관구조체(130)에 설치된 순환펌프(140)를 구동하여 밸러스트수 메인 배관(120)의 후단에 설치된 제2 유출입구(112)로부터 유입한다.In more detail, a part of the ballast water passing through the ballast water main pipe 120 is driven by a circulation pump 140 installed in the tubular structure 130 to provide a second outlet inlet installed at the rear end of the ballast water main pipe 120. From 112).
상기 순환펌프(140)는 적절한 함량의 잔류 염소를 생성시킬 수 있는 양의 밸러스트수를 전해조(150)로 유입하도록 제어장치(180)에 의해 제어된다.The circulation pump 140 is controlled by the controller 180 to introduce an amount of ballast water into the electrolytic cell 150 to generate residual chlorine in an appropriate amount.
다음으로, 상기 단계 1에서 제2 유출입구(112)를 통해 유입된 밸러스트수에 포함된 잔류 염소의 농도를 잔류 염소 측정센서(171)를 사용하여 측정한다(단계 2).Next, the concentration of residual chlorine contained in the ballast water introduced through the second outlet inlet 112 in step 1 is measured using the residual chlorine measuring sensor 171 (step 2).
상기 잔류 염소 측정센서(171)로부터 측정된 밸러스트수에 포함된 잔류 염소의 측정값은 제어장치(180)에 입력된다.The measured value of residual chlorine contained in the ballast water measured by the residual chlorine measuring sensor 171 is input to the controller 180.
다음으로, 상기 잔류 염소 측정센서(171)로부터 측정된 잔류 염소의 측정값과 제어장치(180)에 잔류 염소의 적정량으로 기입력된 설정값을 제어장치(180)를 통해 비교한 후, 제어장치(180)에 의해 정류기(160)의 전압이 조절되어 전해조(150)로 유입된 밸러스트수를 전기 분해한다(단계 3).Next, after comparing the measured value of the residual chlorine measured from the residual chlorine measurement sensor 171 with a predetermined value input to the controller 180 with the appropriate amount of residual chlorine through the control device 180, the control device The voltage of the rectifier 160 is adjusted by 180 to electrolyze the ballast water introduced into the electrolytic cell 150 (step 3).
상기 단계 3에서는 상기 잔류 염소 측정센서(171)로부터 측정된 잔류 염소의 측정값과 제어장치(180)에 잔류 염소의 적정량으로 기입력된 설정값을 비교한 후, 잔류 염소의 측정값이 설정값보다 큰 경우 제어장치(180)에 의해 정류기(160)가 낮은 전압을 인가하여 전해조(150)를 구동시키게 하며, 잔류 염소의 측정값이 설정값보다 작은 경우 제어장치(180)에 의해 정류기(160)가 높은 전압을 인가하여 전해조(150)를 구동시키게 된다. 이와 같은 구동 방식에 의해 선박용 밸러스트수 처리장치(200)의 밸러스트수 저장탱크(120)에는 적절한 농도의 잔류 염소가 포함된 밸러스트수가 저장되게 된다.In the step 3, after comparing the measured value of the residual chlorine measured by the residual chlorine measuring sensor 171 with the preset value inputted as an appropriate amount of the residual chlorine to the control device 180, the measured value of the residual chlorine is the set value If larger, the rectifier 160 applies a low voltage by the controller 180 to drive the electrolytic cell 150. When the measured value of residual chlorine is smaller than the set value, the rectifier 160 is controlled by the controller 180. ) To drive the electrolytic cell 150 by applying a high voltage. By the driving method as described above, the ballast water storage tank 120 of the ballast water treatment apparatus 200 for ships stores ballast water containing residual chlorine in an appropriate concentration.
다음으로, 상기 전기 분해된 밸러스트수를 밸러스트수 메인 배관(11)의 선단에 설치된 제1 유출입구(111)를 통해 배출하고 밸러스트수 메인 배관(110)을 통해 입수되는 밸러스트수와 함께 이송하여 밸러스트수 저장탱크(120)에 저장한다(단계 4).Next, the electrolyzed ballast water is discharged through the first outlet inlet 111 installed at the tip of the ballast water main pipe 11 and transferred together with the ballast water obtained through the ballast water main pipe 110 to ballast. Store in the water storage tank 120 (step 4).
보다 상세하게는, 전해조(150)에서 전기 분해되어 OCl-, HClO 등이 포함된 밸러스트수가 밸러스트 펌프(194)에 의해 밸러스트수 메인 배관(110) 내로 새로 유입되는 밸러스트수와 혼합되어 밸러스트수 저장탱크(120)에 저장되고, 상기 OCl-, HClO 등이 살균제로 작용하여 밸러스트수에 포함된 유해한 미생물 및 세균을 살균한다.In more detail, is electrolyzed in an electrolytic cell (150) OCl -, the number of ballast and the like HClO is mixed with the ballast water that is newly introduced into the ballast water main pipe 110 by the ballast pump 194 can be a storage tank ballast stored in 120 and the OCl -, HClO, etc. this acts as a disinfectant and sterilizing the hazardous microorganisms and bacteria contained in the ballast water.
마지막으로, 상기 밸러스트수 저장탱크(120)에 저장된 밸러스트수를 배출하는 과정에서 배출되는 밸러스트수를 유입하여 잔류 염소의 농도를 잔류 염소 측정기(170)를 사용하여 측정한 후, 잔류 염소 측정값과 잔류 염소의 배출기준에 따라 제어장치(180)에 기입력된 설정값을 제어장치를 통해 비교하여 잔류 염소 측정값이 설정값보다 높은 경우 중화제를 밸러스트수 메인 배관(110)으로 주입한다(단계 5).Finally, after the ballast water discharged in the process of discharging the ballast water stored in the ballast water storage tank 120 to measure the concentration of residual chlorine using the residual chlorine measuring unit 170, the residual chlorine measured value and According to the discharge standard of residual chlorine, compared with the preset value inputted to the control device 180 through the control device, when the residual chlorine measurement value is higher than the set value, neutralizer is injected into the ballast water main pipe 110 (step 5). ).
상기 단계 5는 선박의 외부로 밸러스트수를 배출하는 경우 밸러스트수에 포함된 잔류 염소를 적절한 농도 이하로 중화시키기 위한 단계이다.Step 5 is a step for neutralizing residual chlorine contained in the ballast water to an appropriate concentration or less when discharging the ballast water to the outside of the vessel.
본 발명의 일 실시형태에 있어서, 밸러스트수 메인 배관(110)을 통해 선외로 배출되는 밸라스트수의 잔류 염소의 농도를 제1 유출입구(111)로 유입된 밸러스트수로부터 잔류 염소 측정센서(170)를 사용하여 측정한 후, 잔류 염소의 배출기준에 따라 제어장치(180)에 기입력된 설정값과 비교한 후, 잔류 염소 측정값이 설정값보다 높은 경우 중화제를 제2 유출입구(112)를 통해 밸러스트수 메인 배관(110)으로 주입한다.In one embodiment of the present invention, the residual chlorine measurement sensor 170 from the ballast water flowed into the first outlet inlet 111 concentration of residual chlorine in the ballast water discharged outboard through the ballast water main pipe 110 After the measurement using a), and compared with the preset value input to the control unit 180 according to the discharge standard of residual chlorine, if the residual chlorine measured value is higher than the set value, the neutralizing agent to the second outlet inlet 112 Inject into the ballast water main pipe (110).
보다 상세하게는, 잔류 염소 측정센서(170)로부터 측정된 배출되는 밸러스트수에 포함된 잔류 염소의 측정값이 설정값보다 높은 경우, 제어장치(180)와 연결된 자동제어밸브(182)에 명령을 내려 중화제 저장탱크(181)를 개방한 후 적절한 양의 중화제가 주입되도록 계량 펌프(183)를 사용하여 제2 유출입구(112)로 중화제가 정량 주입되고, 밸러스트수 메인 배관(110)을 통해 배출되는 밸러스트수가 중화되어 배출된다.More specifically, when the measured value of the residual chlorine contained in the discharged ballast water measured from the residual chlorine measuring sensor 170 is higher than the set value, the command to the automatic control valve 182 connected to the control unit 180 is issued. After opening the neutralizing agent storage tank 181, the neutralizing agent is metered into the second outlet 112 using a metering pump 183 so that an appropriate amount of neutralizing agent is injected, and discharged through the ballast water main pipe 110. The ballast water is neutralized and discharged.
상술한 바와 같이, 본 발명에 따른 선박용 밸러스트수 처리방법을 사용하는 경우 종래의 밸러스트수의 필터링법, 화학적 약품처리법에 비해 환경오염을 발생시키지 않고 밸러스트수를 처리하여 선박으로 유입 및 배출할 수 있다.As described above, in the case of using the ballast water treatment method for ships according to the present invention, the ballast water may be treated and introduced into and discharged from the vessel without generating environmental pollution, compared to the conventional ballast water filtering and chemical treatment methods. .
이상 본 발명을 바람직한 실시예를 통하여 설명하였는데, 상술한 실시예는 본 발명의 기술적 사상을 예시적으로 설명한 것에 불과하며, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 다양한 변화가 가능함은 이 분야에서 통상의 지식을 가진 자라면 이해할 수 있을 것이다. 따라서 본 발명의 보호범위는 특정 실시예가 아니라 특허청구범위에 기재된 사항에 의해 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술적 사상도 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.While the present invention has been described through the preferred embodiments, the above-described embodiments are merely illustrative of the technical idea of the present invention, and various changes may be made without departing from the technical idea of the present invention. Those of ordinary skill will understand. Therefore, the protection scope of the present invention should be interpreted not by the specific embodiments, but by the matters described in the claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

Claims (8)

  1. 밸러스트수 저장탱크와 연결된 밸러스트수 메인 배관에 설치되는 선박용 밸러스트수 처리장치로서,Ballast water treatment equipment for ships installed in the ballast water main pipe connected to the ballast water storage tank,
    밸러스트수 메인 배관의 선단에 설치되는 제1 유출입구 및 밸러스트수 메인 배관의 후단에 설치되는 제2 유출입구;A first outlet inlet installed at the front end of the ballast water main pipe and a second outlet inlet installed at the rear end of the ballast water main pipe;
    상기 제1 유출입구 및 제2 유출입구 사이를 연결하며 밸러스트수를 이송하는 관구조체;A tubular structure connecting the first outlet and the second outlet to convey ballast water;
    상기 관구조체에 연결되어 밸러스트수 메인 배관으로부터 일부 밸러스트수를 유입 또는 배출하도록 구동되는 순환펌프;A circulation pump connected to the pipe structure and driven to inflow or discharge some ballast water from the ballast water main pipe;
    상기 순환펌프에 의해 유입된 일부 밸러스트수를 전기 분해하는 전극 세트가 구비된 전해조;An electrolytic cell having an electrode set configured to electrolyze a portion of ballast water introduced by the circulation pump;
    상기 전해조와 연결되어 전해조에 인간되는 전압을 조절하는 정류기;A rectifier connected to the electrolytic cell to adjust a voltage human being in the electrolytic cell;
    상기 제1 유출입구 및 제2 유출입구에 연결되어 잔류 염소를 측정하는 잔류 염소 측정센서;A residual chlorine measuring sensor connected to the first outlet and the second outlet to measure residual chlorine;
    상기 정류기 및 잔류 염소 측정센서와 연결되는 제어장치; 및A control device connected to the rectifier and the residual chlorine measuring sensor; And
    상기 제2 유출입구로 중화제를 주입하기 위해 설치된 중화제 저장탱크 및 계량 펌프;A neutralizer storage tank and a metering pump installed to inject the neutralizer into the second outlet;
    를 포함하는 선박용 밸러스트수 처리장치.Ship ballast water treatment apparatus comprising a.
  2. 청구항 1에 있어서, The method according to claim 1,
    상기 제1 유출입구와 제2 유출입구 사이를 연결하는 관구조체에는 유량계, 온도계 및 압력계가 설치되며, 상기 유량계, 온도계 및 압력계는 상기 제어장치와 연결되는 것을 특징으로 하는 선박용 밸러스트수 처리장치.The tubular structure connecting between the first outlet and the second outlet, the flow meter, the thermometer and the pressure gauge is installed, the flow meter, thermometer and pressure gauge is a marine ballast water treatment apparatus, characterized in that connected to the control device.
  3. 청구항 1에 있어서, The method according to claim 1,
    상기 밸러스트수 메인 배관의 입구와 제1 유출입구 사이에 필터 유닛이 설치되는 것을 특징으로 하는 선박용 밸러스트수 처리장치.Ship ballast water treatment apparatus, characterized in that the filter unit is installed between the inlet and the first outlet of the ballast water main pipe.
  4. 청구항 1에 있어서,The method according to claim 1,
    상기 전해조에는 수소를 배출하기 위한 가스 벤트가 설치되는 것을 특징으로 하는 선박용 밸러스트수 처리장치.The ballast water treatment apparatus for a ship, characterized in that a gas vent for discharging hydrogen is installed in the electrolytic cell.
  5. 밸러스트수 저장탱크와 연결된 밸러스트수 메인 배관의 선단 및 후단에 설치된 제1 유출입구 및 제2 유출입구 중 상기 제2 유출입구로부터 일부 밸러스트수를 유입하는 단계(단계 1);Injecting some ballast water from the second outlet of the first outlet and the second outlet, which are installed at the front and rear ends of the ballast water main pipe connected to the ballast water storage tank (step 1);
    상기 단계 1에서 제2 유출입구를 통해 유입된 밸러스트수의 잔류 염소의 양을 잔류 염소 측정센서를 사용하여 측정하는 단계(단계 2);Measuring the amount of residual chlorine in the ballast water introduced through the second outlet in step 1 by using a residual chlorine measuring sensor (step 2);
    상기 잔류 염소 측정센서로부터 측정된 잔류 염소 측정값과 제어장치에 기입력된 설정값을 제어장치를 통해 비교한 후, 제어장치에 의해 전해조와 연결된 정류기의 전압이 조절되어 전해조에 유입된 일부 밸러스트수를 전기 분해하는 단계(단계 3); After comparing the residual chlorine measured value measured by the residual chlorine measuring sensor and the preset value inputted to the control device through the control device, the voltage of the rectifier connected to the electrolytic cell is controlled by the control device, so that some ballast water flows into the electrolytic cell. Electrolyzing (step 3);
    상기 전기 분해된 밸러스트수를 밸러스트수 메인 배관의 선단에 설치된 제1 유출입구를 통해 배출하여 밸러스트수 메인 배관을 통해 입수되는 밸러스트수와 함께 이송하여 밸러스트수 저장탱크에 저장하는 단계(단계 4); 및Discharging the electrolyzed ballast water through a first outlet inlet installed at the tip of the ballast water main pipe, transferring the ballast water together with the ballast water received through the ballast water main pipe, and storing the ballast water in a ballast water storage tank (step 4); And
    상기 밸러스트수 저장탱크에 저장된 밸러스트수를 배출하는 과정에서 배출되는 밸러스트수를 유입하여 잔류 염소의 농도를 잔류 염소 측정기를 사용하여 측정한 후, 잔류 염소 측정값과 제어장치에 기입력된 설정값을 제어장치를 통해 비교하여 잔류 염소 측정값이 설정값보다 높은 경우에 중화제를 밸러스트수 메인 배관으로 주입하는 단계(단계 5);After the ballast water discharged in the process of discharging the ballast water stored in the ballast water storage tank, the residual chlorine concentration was measured using a residual chlorine meter, and the residual chlorine measurement value and the preset value inputted to the control device were measured. Injecting the neutralizing agent into the ballast water main pipe when the residual chlorine measurement value is higher than the set value compared with the control device (step 5);
    를 포함하는 선박용 밸러스트수 처리방법.Ballast water treatment method for ships comprising a.
  6. 청구항 5에 있어서,The method according to claim 5,
    상기 단계 3에서 상기 잔류 염소 측정값이 설정값보다 낮은 경우 제어장치는 정류기의 전압을 높여 전해조로 유입된 일부 밸러스트수를 전기 분해하며, 상기 잔류 염소 측정값이 설정값보다 높은 경우 제어장치는 정류기의 전압을 낮추어 전해조로 유입된 일부 밸러스트수를 전기 분해함으로써 잔류 염소의 농도를 설정값으로 일정하게 조절하는 것을 특징으로 하는 선박용 밸러스트수 처리방법.When the residual chlorine measured value is lower than the set value in step 3, the controller increases the voltage of the rectifier to electrolyze some ballast water introduced into the electrolytic cell, and when the residual chlorine measured value is higher than the set value, the control device determines the rectifier. A method of treating ballast water for ships, characterized in that the concentration of residual chlorine is adjusted to a predetermined value by electrolyzing some ballast water introduced into the electrolytic cell by lowering the voltage of.
  7. 청구항 5에 있어서,The method according to claim 5,
    상기 단계 5에서 잔류 염소 측정값이 설정값보다 높은 경우 제어장치는 제어장치와 연결된 자동제어밸브에 명령을 내려 중화제 저장탱크를 개방하고 계량 펌프를 통해 제2 유출입구를 통해 밸러스트수 메인 배관으로 중화제를 주입하는 것을 특징으로 하는 선박용 밸러스트수 처리방법.If the residual chlorine measurement value is higher than the set value in step 5, the control unit commands the automatic control valve connected to the control device to open the neutralizing agent storage tank and neutralizes the neutralizing agent to the ballast water main pipe through the second outlet through the metering pump. Ballast water treatment method for ships characterized in that the injection.
  8. 청구항 5에 있어서,The method according to claim 5,
    상기 중화제는 소듐 티오설페이트인 것을 특징으로 하는 선박용 밸러스트수 처리방법.The neutralizer is sodium thiosulfate, characterized in that the marine ballast water treatment method.
PCT/KR2012/000191 2011-11-22 2012-01-09 Method and device for treating ship ballast water WO2013077496A1 (en)

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