KR20110035896A - Ballast water treating apparatus - Google Patents

Ballast water treating apparatus Download PDF

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KR20110035896A
KR20110035896A KR1020100090516A KR20100090516A KR20110035896A KR 20110035896 A KR20110035896 A KR 20110035896A KR 1020100090516 A KR1020100090516 A KR 1020100090516A KR 20100090516 A KR20100090516 A KR 20100090516A KR 20110035896 A KR20110035896 A KR 20110035896A
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South Korea
Prior art keywords
ballast
water treatment
water
tank
flow path
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KR1020100090516A
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Korean (ko)
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KR101211478B1 (en
Inventor
마사야스 마츠다
노부오 사이토
아키히코 마스타니
슈조 가토
요시아키 곤노
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스미도모쥬기가이 마린 엔지니어링 가부시키가이샤
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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
    • 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
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C02F1/325—Irradiation devices or lamp constructions
    • 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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • 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
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/004—Seals, connections
    • 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

Abstract

Provided is a ballast water treatment apparatus capable of easily improving safety when mounted on a vessel carrying petroleum liquid cargo.
The water seal parts 12 and 13 are arrange | positioned between the ballast tank 4 and the water treatment part. Even if the petroleum gas is contained in the ballast tank 4, when the ballast water treatment stops, the aeration between the flow path on the power supply side side of the water treatment unit 11 and the flow path on the ballast tank 4 side is blocked. When starting ballast water treatment again, the gas in ballast water and the electricity supply part of the water treatment part 11 are prevented from contacting reliably. In addition, this effect is easily realized by simply disposing a water seal portion between the water treatment portion 11 and the ballast tank 4.

Figure P1020100090516

Description

Ballast water treating apparatus

The present invention relates to a ballast water treatment apparatus for a ballast tank of a ship carrying a petroleum liquid cargo.

BACKGROUND ART Conventionally, as a ballast water treatment apparatus for water treatment of ballast water of a ballast tank of a ship, it is known to perform water treatment by storing ballast water in an electrolytic cell and electrolyzing in this tank (see Patent Document 1, for example). The ballast water treatment apparatus draws in untreated ballast water by sucking seawater with a pump, performs water treatment by electrolysis, and then fills the treated water in the ballast tank. Alternatively, the ballast water drained from the ballast tank is subjected to water treatment by electrolysis, and then the treated ballast water is drained into the seawater.

Japanese Unexamined Patent Publication No. 2008-188506

Although the ballast water treatment apparatus as mentioned above has been used for a ship, when using the ballast water treatment apparatus as mentioned above with respect to the ship which carries a petroleum liquid cargo, it is calculated | required to ensure safety. In addition, when the ballast water treatment apparatus is applied, it is required to ensure safety with a simple configuration.

Therefore, an object of this invention is to provide the ballast water treatment apparatus which can improve safety easily, when equipped with the ship which carries a petroleum liquid cargo.

In order to solve the said subject, the ballast water treatment apparatus which concerns on this invention is a ballast water treatment apparatus of the ballast tank of the ship which carries a petroleum-based liquid cargo, Comprising: The ballast water of a ballast tank is filled with or drained from a ballast tank. And a water seal portion disposed between the ballast tank and the water treatment portion in the flow path of the ballast water, wherein the water treatment portion has a current-carrying portion in the flow path of the ballast water. A part is characterized by blocking the airflow between the flow path on the ballast tank side and the flow path on the energization portion side when the ballast water treatment stops.

According to the ballast water treatment apparatus according to the present invention, it is possible to block the airflow between the flow path on the side of the power supply in the water treatment unit and the flow path on the ballast tank side with the water seal portion during the water treatment stop. Therefore, even if the petroleum gas is contained in the ballast tank, it is possible to reliably prevent the contact between the gas and the live part of the water treatment unit, and when starting the ballast water treatment again, the petroleum gas is reliably in the surroundings. Electricity can be supplied to the live part. In addition, such an effect can be easily realized by simply disposing a water seal portion between the water treatment portion and the ballast tank. By the above, when the ballast water treatment apparatus is attached to the ship which carries a petroleum liquid cargo, safety can be improved easily.

Moreover, in the ballast water treatment apparatus which concerns on this invention, it is preferable that the gas discharge part is formed in the flow path of a ballast tank side. Thereby, even if petroleum gas was contained in a ballast tank, gas can be discharged | emitted from a gas discharge part. Therefore, safety can be improved further.

Moreover, in the ballast water treatment apparatus which concerns on this invention, it is preferable that the water seal part is comprised by the U-shaped tube. Thereby, a water seal part can be formed with a simple structure.

Moreover, in the ballast water treatment apparatus which concerns on this invention, it is preferable that the U-tube is provided with the buffer tank which isolate | separates ballast water and gas. This makes it easy to separate the gas contained in the ballast water from the liquid in the buffer tank.

According to the present invention, when the ballast water treatment apparatus is attached to a ship carrying a petroleum liquid cargo, safety can be easily improved.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic side view which shows the ship which applied the ballast water treatment apparatus which concerns on one Embodiment of this invention.
2 is a schematic view showing the configuration of the ballast water treatment apparatus and the configuration of the flow path according to the present embodiment.
3 is a diagram illustrating a specific example of the configuration of a water treatment unit of the ballast water treatment apparatus.

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of this invention is described in detail with reference to an accompanying drawing. In the following description, the term "bell" corresponds to the front and rear directions of the hull, and the term "lateral" corresponds to the left and right (width) directions of the hull. The words "up" and "down" correspond to the up and down direction of the hull.

1: is a schematic side view which shows the ship 100 to which the ballast water treatment apparatus 1 which concerns on one Embodiment of this invention was applied. As shown in FIG. 1, the vessel 100 is a vessel such as an oil tanker that carries petroleum liquid cargo such as crude oil or liquefied natural gas, and includes a hull 10, a ballast water treatment apparatus 1, and a propeller 2. ), And the key 3 is provided. The propeller 2 drives the ship 100, for example, the screw shaft is used. The key 3 controls the propulsion direction of the ship 100.

The ballast tank 4 has a function of submerging the entire hull 10 to a certain level regardless of the amount of cargo by the weight of water in the tank by filling or draining the ballast water according to the amount of cargo in the vessel 100. The ballast tank 4 fills ballast water by aspirating seawater with a pump when there is little cargo, and drains ballast water to seawater as cargo increases. The ballast tank 4 is constituted by providing an inner partition wall inside the outer plate of the hull 10 so as to have a double hull structure, and is configured to surround a cargo oil tank for loading petroleum liquid cargo with an inner wall therebetween. have. By this inner wall, the petroleum liquid cargo is prevented from mixing with the ballast water in the ballast tank 4.

Next, with reference to FIG.2 and FIG.3, the detailed structure of the ballast water treatment apparatus 1 which concerns on this embodiment is demonstrated. 2 is a schematic view showing the configuration of the ballast water treatment apparatus 1 and the configuration of the flow path according to the present embodiment. 3 is a diagram illustrating a specific example of the configuration of the water treatment unit of the ballast water treatment apparatus 1.

The ballast water treatment apparatus 1 rinses the water treatment of the ballast water from the outside when the ballast tank 4 is filled with water, and at the time of drainage from the ballast tank 4, the ballast from the ballast tank 4. It has a function of performing water treatment of water. The ballast water treatment apparatus 1 is connected to the sea chest 6 which draws seawater from the exterior of a ship, and the ballast tank 4 through piping. However, in the present embodiment, untreated water drawn from the seed chest 6, water treatment is performed, water filled in the ballast tank 4, untreated water drained from the ballast tank 4, and water treatment is performed. All water drained from the chest 6 is called "ballast water."

The ballast water treatment apparatus 1 is comprised with the water treatment part 11 which performs the water treatment of ballast water, and the water seal parts 12 and 13 arrange | positioned at both sides of the water treatment part 11. The water treatment unit 11 is connected to the water seal unit 12 and the water seal unit 13 via a pipe 20. The ballast water treatment apparatus 1 is connected to the sea chest 6 and the pipe 14 on the inflow side of the water seal portion 12. In addition, the ballast water treatment apparatus 1 is connected to the ballast tank 4 via the piping 15 on the outflow side of the water seal part 13. In addition, the ballast tank 4 is connected via the piping 14 and the piping 16. In addition, the pipe 17 branches from the pipe 15 and is connected to the sea chest 6. In the pipe 14, a valve 18 is provided on the sea chest 6 side than the connection portion with the pipe 16. In the pipe 15, a valve 19 is provided on the ballast tank 4 side than the connection portion with the pipe 17. Moreover, the valve 21 is provided in the piping 16. The valve 22 is provided in the pipe 17.

The water treatment unit 11 has a function of performing water treatment using electricity, and has an electricity supply portion through which electricity is supplied, in the flow path of the ballast water. Specifically, as shown in FIG. 3A, the water treatment unit 11 can electrolytically treat the ballast water W by allowing electricity to flow through the electrode 41. The water treatment unit 11 is configured such that the electrode 41 is disposed in the treatment tank 42 connected to the pipe 20. In this case, the piping 20 and the processing tank 42 comprise the flow path of ballast water W, and the electrode 41 comprises the electricity supply part arrange | positioned in the flow path of ballast water W. As shown in FIG.

Alternatively, as shown in FIG. 3B, the water treatment unit 11 can treat the ballast water W by irradiating ultraviolet rays from the ultraviolet lamp 43. The water treatment unit 11 has a configuration in which the ultraviolet lamp 43 is disposed in the treatment tank 44 connected to the pipe 20. The ultraviolet lamp 43 is comprised by attaching the filament 46 to the glass tube 45. As shown in FIG. In this case, the piping 20 and the processing tank 44 constitute the flow path of the ballast water W, and the filament 46 is arrange | positioned across the glass tube 45 in the flow path of the ballast water W. In FIG. Construct an energized part.

The water seal unit 12 has a function of blocking the airflow between the flow path on the sea chest 6 and the ballast tank 4 side and the flow path on the power supply side side of the water treatment unit 11 when the water treatment stops. . Specifically, the water seal unit 12 can block the airflow between the pipe 20 and the pipes 14 and 16 on the water treatment unit 11 side when the water treatment stops. This water seal part 12 is comprised by the U-shaped tube 24 which makes a U shape downward from the piping 20 connected with the water treatment part 11. In addition, a buffer tank 25 is provided on the inflow side of the U-shaped tube 24. The buffer tank 25 has a function of making it easy to separate the gas contained in the ballast water from the liquid by storing the ballast water.

The bottom pipe 24a of the U-shaped tube 24 is connected to the bottom side of the buffer tank 25, and an end of the pipe 14 is connected to the top side. In addition, on the upper surface of the buffer tank 25, the gas discharge part 26 for discharging gas from the inside of piping system is formed. The gas discharge unit 26 has a function of discharging the gas in the ballast water separated from the buffer tank 25 during the water treatment. In addition, the gas discharge unit 26 has a function of discharging the gas generated from the ballast water in the ballast tank 4 while the water treatment is stopped. The float valve 27 is provided in the inlet part of the gas discharge part 26 in the upper part of the buffer tank 25. As shown in FIG. The float valve 27 has a function of sealing the inlet portion of the gas discharge portion 26 when the water level in the buffer tank 25 becomes more than a predetermined level during water treatment. As a result, it is possible to prevent the ballast water from overflowing from the gas discharge part 26.

The water seal unit 13 has a function of blocking the airflow between the flow path on the sea chest 6 and the ballast tank 4 side and the flow path on the power supply side side of the water treatment unit 11 when the water treatment stops. . Specifically, the water seal unit 13 can block the airflow between the pipe 20 on the water treatment unit 11 side and the pipes 15 and 17 when the water treatment stops. This water seal part 13 is comprised by the U-shaped tube 34 which makes a U shape downward from the piping 20 connected with the water treatment part 11. Further, a buffer tank 35 is provided on one side of the outflow side of the U-shaped tube 34. The buffer tank 35 has a function of making it easy to separate the gas contained in the ballast water from the liquid by storing the ballast water.

The bottom pipe 34a of the U-shaped tube 34 is connected to the bottom side of the buffer tank 35, and the end of the pipe 15 is connected to the top side. In addition, on the upper surface of the buffer tank 35, a gas discharge portion 36 for discharging gas from the inside of the piping system is formed. The gas discharge part 36 has a function of discharging the gas in the ballast water separated from the buffer tank 35 during the water treatment. In addition, the gas discharge part 36 has a function of discharging the gas generated from the ballast water in the ballast tank 4 during the water treatment stop. The float valve 37 is provided in the inlet part of the gas discharge part 36 in the upper part of the buffer tank 35. As shown in FIG. This float valve 37 has a function of sealing the inlet of the gas discharge part 36 when the water level in the buffer tank 35 becomes more than a predetermined level during water treatment. As a result, it is possible to prevent the ballast water from overflowing from the gas discharge part 36.

Next, the operation and effect of the ballast water treatment apparatus 1 according to the present embodiment will be described with reference to FIG. 2.

First, the case where the ballast water is filled in the ballast tank 4 is demonstrated. In this case, the valve 21 and the valve 22 are closed, and the valve 18 and the valve 19 are opened. The ballast water is filled in the ballast tank 4 from the sea chest 6 through L1 in the figure. Specifically, the ballast water is aspirated from the sea chest 6 by a pump (not shown), and passes through the pipe 14, the water seal part 12, and the pipe 20, and the water treatment unit 11 performs water treatment. Is done. The ballast water which has been subjected to water treatment is supplied to the ballast tank 4 through the pipe 20, the water seal part 13, and the pipe 15. During the water treatment, the pipe 14, the water seal part 12, the pipe 20, the water treatment part 11, the water seal part 13, and the pipe 15 are filled with ballast water.

On the other hand, the case where the ballast water is drained from the ballast tank 4 is demonstrated. In this case, the valve 18 and the valve 19 are closed, and the valve 21 and the valve 22 are opened. Ballast water passes through L2 in the figure, and is drained from the ballast tank 4 to the sea chest 6. Specifically, the ballast water is sucked from the ballast tank 4 by a pump (not shown), and passes through the pipe 16, a part of the pipe 14, the water seal part 12, and the pipe 20. Water treatment is performed in the treatment unit 11. The ballast water with water treatment passes through the pipe 20, the water seal portion 13, a part of the pipe 15, and the pipe 17 and is drained to the sea chest 6. During the water treatment, the pipe 16, a part of the pipe 14, a water seal part 12, a pipe 20, a water treatment part 11, a water seal part 13, a part of the pipe 15, and a pipe ( 17) is filled with ballast water.

When the water treatment of the ballast water is stopped, the upper side of the water treatment unit 11, the pipe 20, the pipe 14, the pipe 15, the pipe 16, the pipe 17, and the buffer tanks 25 and 35 Ballast water is returned to the ballast tank 4 or the sea chest 6 by gravity. However, ballast water remains in the water seal part 12 and the water seal part 13 which are curved downward.

Since ballast water remains in the water seal part 13, the airflow between the water treatment part 11 and the piping 20, the upper side of the buffer tank 35, the piping 15, and the piping 17 is interrupted | blocked. Thereby, the ventilation between the flow path of the electricity supply part side in the water treatment part 11, and the flow path of the discharge side of the water seal part 13 is interrupted | blocked. This is because, from the ballast tank 4, between the flow path on the side of the energization part in the water treatment unit 11 and the flow path on the ballast tank 4 side (upper side of the buffer tank 35 and the pipe 15). You may think that aeration is blocked. On the other hand, when seen from the sea chest 6, the flow path of the electricity supply part side in the water treatment part 11, the flow path of the sea chest 6 side (upper side of the buffer tank 35, a part of piping 15, And ventilation between the pipe 17 can be considered to be blocked.

In addition, ballast water remains in the water seal portion 12, so that air flow between the water treatment portion 11 and the pipe 20, the upper side of the buffer tank 25, the pipe 14 and the pipe 16 is blocked. do. Thereby, the ventilation between the flow path of the electricity supply part side in the water treatment part 11, and the flow path of the inflow side of the water seal part 12 is interrupted | blocked. As seen from the ballast tank 4, this is a flow path on the side of the energization part in the water treatment unit 11, a flow path on the ballast tank 4 side (the upper side of the buffer tank 25, a part of the pipe 14, And the ventilation between the pipe 16 is considered to be blocked. On the other hand, when seen from the sea chest 6, between the flow path of the electricity supply part side in the water treatment part 11, and the flow path of the sea chest 6 side (upper side of the buffer tank 25, and piping 14). It can be thought that the aeration of is blocked.

Thereby, when the ballast water treatment stops, it is possible to block the airflow between the flow path on the side of the power supply section in the water treatment unit 11 and the flow path on the ballast tank 4 side. Therefore, even if the petroleum gas is contained in the ballast tank 4, it can be reliably prevented from contacting this gas and an energization part, and when the ballast water treatment is started again, in a state where there is no petroleum gas completely around. Electricity is supplied to the electricity supply part of the water treatment part 11. In addition, such an effect can be easily realized by simply arranging the water seal portions 12 and 13 between the water treatment portion 11 and the ballast tank 4. By the above, when the ballast water treatment apparatus 1 is attached to the ship which carries a petroleum liquid cargo, safety can be improved easily.

Further, in the ballast water treatment apparatus 1 according to the present embodiment, a gas discharge portion 26 is formed in the buffer tank 25 of the water seal portion 12, and the buffer tank of the water seal portion 13 The gas discharge part 36 is formed in 35. Thereby, even if petroleum gas is contained in the ballast tank 4, gas can be discharged from the gas discharge part 26 and the gas discharge part 36. FIG. Therefore, safety can be improved further.

In addition, in the ballast water treatment apparatus 1 which concerns on this embodiment, the water seal parts 12 and 13 are comprised by the U-shaped pipe specifically ,. Thereby, a water seal part can be formed with a simple structure.

In the ballast water treatment apparatus 1 according to the present embodiment, a buffer tank 25 is provided in the water seal part 12, and a buffer tank 35 is provided in the water seal part 13. This makes it easy to separate the gas contained in the ballast water from the buffer tanks 25 and 35 from the liquid.

As mentioned above, although preferred embodiment of this invention was described, this invention is not limited to embodiment mentioned above.

For example, in the above-described embodiment, one ballast water treatment apparatus 1 is arranged by combining the path of filling the ballast tank 4 with the path draining from the ballast tank 4, but instead, the ballast tank is replaced. You may arrange | position one ballast water treatment apparatus in the path | route which fills water in (4), and may arrange | position one ballast water treatment apparatus in the path | route drained from the ballast tank 4. As shown in FIG. At this time, in the ballast water treatment apparatus in the path | route which fills the ballast tank 4 with water, only the piping of the path | route L1 shown in FIG. 2 is connected. In this case, it is not necessary to provide the water seal parts 12 and 13 on both sides of the water treatment part 11, and only the water seal part 13 on the outflow side of the water treatment part 11 need only be provided. Thereby, ventilation between the flow path of the electricity supply part side of the water treatment part 11, and the flow path of the ballast tank 4 side can be interrupted | blocked. Moreover, in the ballast water treatment apparatus in the path | route drained from the ballast tank 4, only the piping of the path | route L2 shown in FIG. 2 is connected. In this case, it is not necessary to provide the water seal portions 12 and 13 on both sides of the water treatment portion 11, and at least only the water seal portion 12 on the inflow side of the water treatment portion 11 may be provided. Thereby, ventilation between the flow path of the electricity supply part side of the water treatment part 11, and the flow path of the ballast tank 4 side can be interrupted | blocked.

In addition, although the water seal parts 12 and 13 in which the buffer tanks 25 and 35 were formed in one part were used in the above-mentioned embodiment, a pipe without the buffer tanks 25 and 35 is provided instead. You may use the simple U-shaped tube whose internal diameter is uniform.

In addition, although the gas discharge parts 26 and 36 were formed in the buffer tanks 25 and 35 of the water seal parts 12 and 13, if it is formed in the flow path of the ballast tank 4 side at least, the ballast tank 4 Gas can be included).

In addition, in the above-mentioned embodiment, although the water treatment part of the electrode type and the ultraviolet lamp type water treatment part shown in FIG. 3 were mentioned as a particularly preferable example, it is not limited to this, The electricity supply part through which electricity flows in the flow path of a ballast water is mentioned. What kind of water treatment part may be sufficient as it affects petroleum gas in a ballast tank etc.?

One… Ballast water treatment
4… Ballast tank
11 ... Water treatment
12, 13... Water seal
24, 34... U-shaped tube
25, 35... Buffer tank
26, 36... Gas outlet
41, 46... Energizer

Claims (4)

Ballast water treatment apparatus for ballast tanks of ships carrying petroleum liquid cargo,
A water treatment unit which fills the ballast tank or performs water treatment of ballast water drained from the ballast tank;
At least a water seal portion disposed between the ballast tank and the water treatment portion in the flow path of the ballast water,
The water treatment unit has an electricity supply portion through which electricity is supplied, in the flow path of the ballast water,
And the water seal unit cuts off the airflow between the flow path on the ballast tank side and the flow path on the energization portion side when the ballast water processing stops. The method according to claim 1,
The ballast water treatment apparatus, characterized in that the gas discharge portion is formed in the flow path on the ballast tank side. The method according to claim 1 or 2,
The water seal unit is ballast water treatment apparatus, characterized in that composed of a U-tube. The method according to claim 3,
The ballast water treatment apparatus, characterized in that the U-pipe is provided with a buffer tank for separating the ballast water and gas.
KR1020100090516A 2009-09-29 2010-09-15 Ballast water treating apparatus KR101211478B1 (en)

Applications Claiming Priority (2)

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JPJP-P-2009-224987 2009-09-29
JP2009224987A JP4813588B2 (en) 2009-09-29 2009-09-29 Ballast water treatment equipment

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KR101211478B1 KR101211478B1 (en) 2012-12-12

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KR101211478B1 (en) 2012-12-12
DE102010046409A1 (en) 2011-04-21
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JP4813588B2 (en) 2011-11-09
CN102030382A (en) 2011-04-27

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