KR20160101346A - Vessel Equipped with a Water Quality Monitoring Device and a Device of the Ballast Water - Google Patents

Vessel Equipped with a Water Quality Monitoring Device and a Device of the Ballast Water Download PDF

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Publication number
KR20160101346A
KR20160101346A KR1020150023746A KR20150023746A KR20160101346A KR 20160101346 A KR20160101346 A KR 20160101346A KR 1020150023746 A KR1020150023746 A KR 1020150023746A KR 20150023746 A KR20150023746 A KR 20150023746A KR 20160101346 A KR20160101346 A KR 20160101346A
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South Korea
Prior art keywords
ballast
water
water layer
tank
ballast tank
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KR1020150023746A
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Korean (ko)
Inventor
슈지 우에키
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미쯔이 죠센 가부시키가이샤
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Priority to KR1020150023746A priority Critical patent/KR20160101346A/en
Publication of KR20160101346A publication Critical patent/KR20160101346A/en

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    • 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
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
    • B63B43/06—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability using ballast tanks
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2207/00—Buoyancy or ballast means
    • B63B2207/02—Variable ballast or buoyancy

Abstract

The purpose of the present invention is to provide a ballast water quality monitoring device capable of discharging ballast water while meeting standards by monitoring a quality of the ballast water without measuring the quality of the ballast water inside a ballast tank and facilitating or omitting a sampling of the ballast water using a PSC testing pipe and a vessel with the device. The purpose is achieved by equipping a water collecting pump (1), a microorganism treating device (2), the ballast tank (4), mock-up ballast tanks, and the microorganism treating device; virtually dividing the ballast tank into two water layer sections in a depth direction; and installing the mock ballast tanks at heights of the divided water layer sections corresponding to the water layer sections separately.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a ballast water quality monitoring apparatus,

The present invention relates to an apparatus for monitoring the quality of ballast water and a vessel equipped with the apparatus. More particularly, the present invention relates to a ballast water quality monitoring apparatus capable of monitoring the quality of ballast water without measuring the water quality in the ballast tank And a ship equipped with the apparatus.

The ballast water management treaty established by IMO (International Maritime Organization) determines the performance of the ballast water treatment system and determines the survival rate of aquatic life after 5 days in the field test. In addition, although the test method based on actual operation is recommended in the shipboard test, most tests are carried out with a voyage within 5 days.

Therefore, in the performance check, re-growth was hardly a problem in the indicator of aquatic organisms exemplified in the emission standard after the killing process.

JP Patent Publication No. 2009-112978

However, the emission standards that the US intends to set are pointed out to be redeposition because of the possibility that the reference value may be set for all bacteria including heterotrophic bacteria. In long voyages, it is necessary to think about the propagation of bacteria due to the fact that the active substances such as medicines are not effective or the treatment is not enough.

Patent Literature 1 has a line for returning the ballast water discharged to the outside from the ballast tank to the water treatment apparatus so as to reprocess the ballast water in the case of proliferation in the tank, And that the ballast water can be drained in a state satisfying the above conditions. Further, Patent Document 1 discloses that it is possible to cope with deterioration of water quality in the tank by monitoring the water quality of the ballast water in the tank.

However, sampling of the water in the ballast tank poses a serious problem that it may be dangerous depending on the installation position of the ballast tank or the installation environment. In addition, there is a possibility that the germs are mixed into the ballast tank at the time of sampling, and the large amount of water in the tank is contaminated by the re-growth.

Therefore, it is required to develop a ballast water quality monitoring apparatus capable of discharging the ballast water while monitoring the water quality of the ballast water without measuring the water quality in the ballast tank.

Meanwhile, the International Convention for the Control and Management of Ship Ballast Water and Sediments (Ballast Water Management Treaty) was adopted at the International Conference on Shipboard Ballast Water Management held in February 2004, along with four resolutions. The International Conference on Ballast Water Management (IBC), in its Resolution 1, requested the Agency to prepare guidelines as an urgent matter for the unified application of the Convention and adopted the Guidelines for sampling ballast water (G2) did.

The purpose of this G2 is to provide a practical and technical guidance on ballast water sampling and analysis to the Port State Control (PSC) inspector to determine whether the ship complies with the Ballast Water Management Treaty To the Contracting State which includes it. This G2 guideline provides general recommendations for ballast water sampling conducted by PSC inspectors.

Recently, the re-propagation of microorganisms is problematic when discharging the ballast water after loading the microorganism-treated seawater in the ballast tank, and the above management standards do not allow the re-propagation.

In order to achieve the purpose of G2, the ballast water is sampled by the PSC inspectors when the ship loaded with cargo enters the port and discharges the ballast water from the port. Sampling of the ballast tank is not easy, Or the contamination of vast amounts of water in the tank.

Therefore, it is an object of the present invention to provide a water quality monitoring apparatus and method for monitoring the quality of ballast water, which can drain the ballast water without failing to measure the quality of water in the ballast tank, To provide a ship.

It is another object of the present invention to provide a water quality monitoring apparatus for ballast water which can facilitate or omit sampling of ballast water by a PSC inspector and a vessel provided with the apparatus.

A further object of the present invention will become apparent from the following description.

The above problems are solved by the following respective inventions.

A water intake pump for taking ballast water into the vessel;

1. A microorganism treatment device for removing microorganisms in a ballast water taken by a water intake pump, removing microorganisms by membrane treatment, or treating the microorganisms in a membrane treatment after slaughtering;

A ballast tank for transferring and storing the ballast water treated by the microorganism treatment device;

A simulated ballast tank for transferring and storing a part of the treated ballast water to be transferred from the microorganism treating apparatus to the ballast tank; And

And a microorganism measuring device for measuring the number of microorganisms by sampling the ballast water stored in the simulated ballast tank,

The ballast tank is virtually defined by two or more water layer regions in the depth direction,

Wherein the simulated ballast tanks are respectively provided in correspondence to the water layer regions at the same height position as the defined water layer region.

2. The apparatus for monitoring water quality of ballast water according to 1 above, wherein the defined water layer region comprises a lower water layer under the draft lower than the draft and a higher water layer above the draft.

3. The apparatus for monitoring water quality of ballast water according to 2 above, wherein the water layer near the draft waterline is virtually defined between the lower water layer under the draft lower than the draft and the upper water layer above the draft.

4. One ballast tank is provided,

Two or more water layer regions are virtually defined in the depth direction of the one ballast tank,

The simulated ballast water tank monitoring system according to claim 1, wherein the simulated ballast tank is provided at a position as high as the water level region of the ballast tank in correspondence to the water layer region.

5. Two or more ballast tanks are provided,

The plurality of ballast tanks are divided into a set of predetermined numbers,

Two or more water layer regions are defined in the depth direction of one ballast tank selected from the divided tanks,

The apparatus for monitoring water quality of ballast water according to 1 above, wherein the simulated ballast tanks are provided corresponding to the water layer regions at the same height as the defined water layer region.

6. A ship having the water quality monitoring device for ballast water according to any one of 1 to 5 above.

According to the present invention, there is provided a water quality monitoring apparatus for ballast water which can discharge the ballast water without failing to measure the water quality in the ballast tank and monitoring the water quality of the ballast water, .

Further, according to the present invention, it is possible to provide a water quality monitoring apparatus for ballast water which facilitates or omits sampling of ballast water by a PSC inspector, and a ship provided with the apparatus.

1 is a schematic cross-sectional view showing an example of a water quality monitoring apparatus for ballast water according to the present invention.
2 is a schematic plan view showing an example of a water quality monitoring apparatus for ballast water according to the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a view showing an example of a water quality monitoring apparatus for ballast water according to the present invention. In FIG. 1, reference numeral 1 denotes a water intake pump for taking ballast water, and the ballast water to be taken is water, Seawater, fresh water.

The ballast water to be taken contains microorganisms such as plankton, bacteria, and viruses. These microorganisms are killed by the microorganism treatment device 2, treated by membrane treatment, or removed by membrane treatment after the abovementioned killing.

Here, the term "killing" means a method of sterilizing by a medicine, a method of sterilizing ultraviolet rays, a method of destroying or killing by physical shock or shearing force, and the like. The term " membrane treatment "includes a membrane separation method using a filtration membrane such as a microfiltration membrane.

In the present invention, any of the following methods may be employed, that is, killing and membrane treatment, or membrane treatment after killing. Examples of the disposal apparatus include an ozone sterilizer, a chlorine sterilizer, a hypochlorous acid sterilizer, and an ultraviolet sterilizer. Examples of devices using physical impact include devices using shock waves, and devices using shear force include devices using slits installed in pipes.

The method of installing the ballast tanks 4 in the vessel 3 varies depending on the vessels and the number of ballast tanks is not clear in Fig. 1, but the number of the ballast tanks 4 in the port side and the starboard ballast tanks 4 ' Will be described.

The starboard ballast tanks 4 are formed in one water tank from the bottom 30 to the top of the draft 31 and the starboard ballast tanks 4 ' To the upper side of the draft (31).

The ballast tank 4 has three water layer regions consisting of a lower water layer 4A, a lower water layer 4B and a lower water layer 4C lower than the draft in the depth direction, do.

It is not a wall, but a hypothetical horizon.

In the present invention, a simulated ballast tank is provided corresponding to the water layer region at a position as high as the water layer region of the ballast tank.

Specifically, a simulated ballast tank 5A is provided corresponding to the water layer region at a position as high as the draft lower water layer region 4A which is lower than the draft. In addition, a simulated ballast tank 5B is provided corresponding to the water layer region at a position as high as the water layer 4B near the draft. Also, a simulated ballast tank 5C is provided at a position as high as the draft upper water layer region 4C which is higher than the draft, corresponding to the water layer region.

The ballast water that has been treated with the microorganism treatment device is transferred to and stored in the ballast tank in the ship 3. More specifically, the lower water layer region 4A, the lower water layer region 4B, And the upper water layer region 4C.

In the present invention, the method for storing the ballast water that has been treated with the microorganism treatment device in the simulated ballast tanks 5A, 5B, 5C is to bypass the part of the ballast water during the process of being transferred to the ballast tank. Do not.

The method of virtually defining the water layer region in the ballast tank 4 is as follows: the draft lower water layer region 4A which is lower than the draft in the depth direction, the near water layer region 4B, and the upper water layer region (4C) are virtually defined.

In the present invention, two or more water layer regions may be virtually defined in the depth direction of the ballast tank 4, so that the number may be two, three, or more.

In the present invention, the simulated ballast tanks may be provided corresponding to the water layer regions at the same height position as the water layer region of the ballast tank, so that simulated ballast tanks are respectively installed according to the number of the defined water layer regions.

The same height position may be defined as the height of the water layer area defined.

In the above description, the charging of the ballast water to the ballast tank 4 of the ship's port has been described. Next, the charging of the ballast water to the starboard ballast tank 4 'will be described.

The imaginary delimitation of the water layer region of the starboard ballast tank 4 'is exactly the same as that of the ballast tank 4 of the port side, and the height position of the water layer region is not changed.

It is possible to fill the water layer region 4'A at substantially the same time that the ballast water is filled in the water layer region 4A. Likewise, the water layer region 4'B can be filled with the ballast water at substantially the same time that the ballast water is filled in the water layer region 4B. Likewise, it is possible to fill the water layer region 4'C at substantially the same time that the ballast water is filled in the water layer region 4C.

The simulated ballast tanks 5A can be used both in the water layer region 4A and the water layer region 4'A to reduce the cost. Since there is little change in the environment (for example, temperature) in the height direction, there is no particular problem even if used in combination. Also, if the simulated ballast tanks 5B are used both in the water layer region 4B and the water layer region 4'B, the cost is reduced. In addition, the simulation ballast tank 5C can be used both in the water layer region 4C and the water layer region 4'C to reduce the cost.

Next, a case where the ballast tanks of the port and starboards are divided into a plurality of ballast tanks, respectively, will be described with reference to Fig.

2 is a schematic plan view showing an example of a water quality monitoring apparatus for ballast water.

In the drawing, a plurality of ballast tanks of the port and starboard are provided. In the illustrated embodiment, four port bow ballast tanks 40A, 40B, 40C and 40D are provided, and four starboard ballast tanks 40E, 40F, 40G and 40H are provided.

In the present invention, when there are a plurality of ballast tanks, it is not preferable to provide the respective ballast tanks in each of the ballast tanks, since this raises the cost.

2 is an example in which four port bow ballast tanks 40A, 40B, 40C and 40D are provided.

Four port-port ballast tanks are a set, and virtually define three water-bearing zones in the depth direction of the ballast tanks. This definition method is as described in Fig. The four ballast tanks are assumed to have the same depth.

Simulated ballast tanks 5A (5B, 5C) are provided corresponding to the water layer region at the same height position as the defined water layer region. In the drawing, a simulated ballast tank 5A is shown in a plan view, but 5B and 5C are present below 5A.

If there are a plurality of ballast tanks in the port other than the four ballast tanks, the plurality of port-port ballast tanks are defined as one set, and three water layer areas are virtually defined in the depth direction of the ballast tanks. Three simulated ballast tanks (not shown) are provided corresponding to the water layer region at the same height position as the defined water layer region.

The above description is about the definition of a hypothetical water layer zone for a port bowling tank and the installation of a simulated ballast tank. However, the definition of a hypothetical water layer zone for a starboard ballast tank and the installation of a simulated ballast tank are also performed.

In FIG. 2, reference numerals 40E, 40F, 40G and 40H denote starboard ballast tanks. One simulated ballast tank 5'A (5'B, 5'C) is provided in correspondence with one set of starboard ballast tanks indicated by 40E, 40F, 40G, and 40H in the same manner as the above-described left-side ballast tanks. In the drawing, a simulated ballast tank 5'A is shown in a plan view, but 5'B and 5'C are present below 5'A.

On the other hand, if there are a plurality of ballast tanks in the starboard besides the four ballast tanks, the plurality of starboard ballast tanks are defined as one set, and three water layer regions are likewise virtually defined in the depth direction of the ballast tanks. Three simulated ballast tanks (not shown) are provided corresponding to the water layer region at the same height position as the defined water layer region.

The reason for providing such simulated ballast tanks is as follows.

As described above, in the present invention, for the one or more ballast tanks, the draft lower water layer region 4A, the draft near water layer region 4B and the draft upper water layer region 4C, which are lower than the draft, . The simulated ballast tanks are arranged at the same height in the depth direction of the water layer region of the corresponding ballast tanks.

The ballast water management treaty established by IMO determines the performance of the ballast water treatment system based on the survival rate of aquatic life after 5 days in the field test.

In addition, although the test method based on actual operation is recommended in the shipboard test, most tests are carried out with a voyage within 5 days.

Therefore, in the performance verification, after the killing (separation and removal) treatment, the re-growth in the indicator of aquatic organisms exemplified in the emission standard is hardly a problem.

However, the emission standards that the US intends to set are pointed out to be reproducible because there is a possibility that the reference value may be set for all bacteria including heterotrophic bacteria. This is because it is considered that the bacteria will proliferate when killing or membrane treatment is insufficient or when the concentration of the residual oxidant derived from the active substance such as ozone decreases during long voyage.

It is possible to easily judge whether or not further treatment is necessary at the time of discharging by analyzing the concentration of the microorganisms or the residual oxidant concentration in the ballast water in the ballast tank before discharging in advance.

However, it is dangerous to measure the water quality by directly sampling the ballast water in the ballast tank, depending on the installation location of the ballast tank or the installation environment. In addition, there is a possibility that bacteria are mixed into the ballast tank due to the sampling time of the person sampling at the time of sampling, the sampling vessel, and the like, and contamination of an enormous amount of ballast water in the ballast tank due to re-

Conventionally, when preparing a simulated ballast tank, it has been considered to provide one simulated ballast tank for each ballast tank. Based on the knowledge that if there is bacterial re-growth in the ballast tank, the ballast water in the simulated ballast tank likewise reproduces the bacteria.

However, a configuration in which one simulated ballast tank is provided for each ballast tank was not sufficient to realize the idea of providing simulated ballast tanks in an environment similar to the environment in the ballast tank.

In the environment of one ballast tank, the influence of temperature and light on the depth direction is different, and it is found that it is a cause of re-growth of bacteria.

For this reason, in the present invention, one ballast tank is virtually divided in the depth direction to provide a virtual region, and a simulated ballast tank is provided corresponding to the virtual region. As a result, it is possible to realize an environment very similar to the environment in the ballast tank, and if there is re-growth of the bacteria in the ballast tank, the ballast water in the simulated ballast tank is also reliably proliferated again, and the reliability of the simulated tank . In order to secure such reliability, the simulated ballast tank is provided at a height as high as the virtual area.

As described above, when the number of virtual regions increases in the depth direction of the ballast tank, the number of simulated ballast tanks can be increased accordingly.

The periphery of the simulated ballast tank is light-shielded. In particular, it is preferable that the tank main body and the lid capable of being opened and closed are made of a light shielding metal. Stainless steel may be used in consideration of seawater corrosion. It may also be formed of a resin material of light shielding property and corrosion resistance.

The provision of the simulated ballast tanks according to the virtual area in the present invention allows the analysis of the water in the simulated ballast tanks without analyzing the water in the ballast tanks to determine whether the bacteria have re-grown in the treated ballast water in the ballast tanks Can be confirmed.

The water quality monitoring apparatus of the present invention includes an analyzer. In this embodiment, a microorganism measuring apparatus is provided for measuring the number of microorganisms (the number of bacteria) by sampling water in a simulated ballast tank.

As a method for measuring the number (concentration) of microorganisms (bacteria), for example, ATP (adenosine triphosphate) and fluorescence staining method can be employed.

In the present invention, "sampling and measuring the water in the simulated ballast tank" is not necessarily limited to the case where the water in the simulated ballast tank is taken out of the simulated ballast tank and the water in the simulated ballast tank is measured in the simulated ballast tank And the like. However, from the viewpoint of preventing the environment of the water in the simulated ballast tank from being disturbed by the measurement itself and improving the measurement accuracy when repeated measurement is performed for a predetermined time, water in the simulated ballast tank is taken out of the simulated ballast tank .

In the present invention, the capacity of the simulated ballast tanks is such that the simulated ballast tanks can not substantially exhibit their function as the ballast tanks, and is not particularly limited. Specifically, the capacity of the simulated ballast tanks is preferably about 100 liters to 1000 liters.

In the present invention, the same results as those obtained by sampling and analyzing the ballast water in the ballast tank by sampling and analyzing the water in the simulated ballast tank are obtained. Therefore, the analysis of the ballast water by the PSC inspectors can be performed only by sampling and analyzing the water in the simulated ballast tanks, thereby avoiding the risk of sampling the ballast water in the ballast tanks. Therefore, sampling by the PSC inspectors is facilitated or omitted There is an effect that can be done.

Here is a brief explanation of sampling and analysis by PSC inspectors.

PSC inspectors, for example, take samples of water from a simulated ballast tank and measure the number of bacteria.

This is to monitor whether the number of bacteria (the number of microorganisms) exceeds the specified value. It is desirable that the specified value can correspond to the IMO standard or the US standard value.

If the number of bacteria exceeds the specified value, the PSC inspector will contact the ship's owner and lead them.

The processing using an active material such as ozone may be carried out in the in-vessel treatment apparatus.

Ballast water can not be discharged (discharged) to the sea if the active material contains more than a predetermined value. Therefore, the PSC inspector first measures the TRO to determine whether it contains the active substance. For example, when the active substance is ozone, the related substances generated by the reaction of ozone with bromine ion (Br - ) in seawater are bromoform (CHBr 3 ), bromate ion (BrO 3 - ), residual oxidant Residual Oxidants: TRO).

TRO is a generic name of a substance that reacts with a neutral potassium iodide solution to liberate iodine, and is an oxidizing substance the same as photochemical oxidant, ozone, and the like.

This TRO monitor can also monitor the TRO concentration of the ballast water when discharging ballast water from a system that treats ballast water using sodium hypochlorite other than ozone.

If the TRO concentration is above the set point during ballast water discharge, the PSC inspectors will contact the shipowner and instruct them.

As described above, in the present invention, the PSC inspector can determine whether or not the ballast water in the ballast tank can be discharged by measuring the number of bacteria and the residual oxidant concentration in the simulated ballast tank.

On the other hand, on the ship side, long-term navigation is possible while meeting the ballast water discharge standard (Rule D-2) and the USCG emission standard.

The PSC inspectors may make a brief decision on the re-proliferation of ballast water. For example, the inspector samples the water in the simulated ballast tank, and the sampled water is concentrated as necessary to measure the concentration of living organisms. The ATP method is preferable as a method for measuring the concentration of living organisms in the simple determination. The ATP method can measure plankton as well as bacteria.

It is also preferable that living organisms are separated by size and measured by size at the time of measurement. Specifically, when the sampled ballast water is treated with a filter having a size of less than 10 mu m and the living organisms captured by the filter are rinsed with washing water, living organisms larger than 10 mu m can be weighed. By measuring the permeated water permeating the filter, living organisms smaller than 10 mu m can be weighed.

In this way, the PSC inspectors can easily determine whether the ballast water is suitable for the treaty based on the measured living biological concentration.

The ship of the present invention is equipped with the aforementioned water quality monitoring device for ballast water.

1: Suction pump
2: Microbial treatment device
3: Ships
30: bottom of the ship
31: Draft
4, 4 ': Ballast tank
4A, 4'A: draft lower water layer region
4B, 4'B: near-draft water layer region
4C, 4'C: draft upper water layer region
5A, 5B, 5C: Simulated ballast tank
40A, 40B, 40C, 40D: Port ballast tanks
40E, 40F, 40G, 40H: Starboard ballast tank

Claims (6)

A water intake pump for taking ballast water into the vessel;
A microbial treatment device that kills microbes in the ballast water taken by the water intake pump, treats the microbes in the ballast water, or treats the microbes in the ballast water after the microbes are killed;
A ballast tank for transferring and storing the ballast water treated by the microorganism treatment device;
A simulated ballast tank for transferring and storing a part of the treated ballast water to be transferred from the microorganism treating apparatus to the ballast tank; And
And a microorganism measuring device for measuring the number of microorganisms by sampling the ballast water stored in the simulated ballast tank,
The ballast tank is virtually defined by two or more water layer regions in the depth direction,
Wherein the simulated ballast tanks are respectively provided in correspondence to the water layer regions at the same height position as the defined water layer region. The method according to claim 1,
Wherein the defined water layer region comprises a lower water layer under the draft lower than the draft and a higher water layer above the draft. 3. The method of claim 2,
Wherein the water quality monitoring apparatus virtually defines a water layer near the draft water between a draft lower water layer region lower than the draft and a draft upper water layer region higher than the draft. The method according to claim 1,
One ballast tank is provided,
Two or more water layer regions are virtually defined in the depth direction of the one ballast tank,
Wherein the simulated ballast tank is provided at a position as high as that of the water layer region of the ballast tank in correspondence to the water layer region. The method according to claim 1,
At least two ballast tanks are provided,
The plurality of ballast tanks are divided into a set of a predetermined number of tanks,
Two or more water layer regions are defined in the depth direction of one ballast tank selected from the divided tanks,
Wherein the simulated ballast tanks are respectively provided in correspondence to the water layer regions at the same height position as the defined water layer region. A ship having the water quality monitoring device of the ballast water according to any one of claims 1 to 5.
KR1020150023746A 2015-02-17 2015-02-17 Vessel Equipped with a Water Quality Monitoring Device and a Device of the Ballast Water KR20160101346A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111627288A (en) * 2020-06-13 2020-09-04 南通大学 Marine liquid level remote measurement and valve remote control system experimental device and control method thereof
KR20220074238A (en) 2020-11-27 2022-06-03 주식회사 신코 Multi-wavelength fluorescence measurement sensor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009112978A (en) 2007-11-08 2009-05-28 Mitsubishi Heavy Ind Ltd Ballast water treatment system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009112978A (en) 2007-11-08 2009-05-28 Mitsubishi Heavy Ind Ltd Ballast water treatment system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111627288A (en) * 2020-06-13 2020-09-04 南通大学 Marine liquid level remote measurement and valve remote control system experimental device and control method thereof
KR20220074238A (en) 2020-11-27 2022-06-03 주식회사 신코 Multi-wavelength fluorescence measurement sensor

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