JP5173544B2 - Ballast water treatment ship and untreated ballast water treatment method - Google Patents

Description

  The present invention relates to a ballast water treatment ship and a method for treating untreated ballast water, and in particular, has no ballast water treatment equipment, accepts untreated ballast water from a ship in which untreated ballast water is stored in a ballast tank, The present invention relates to a ballast water treatment ship that can be discharged as clean treated water in which aquatic organisms and bacteria are killed, and a method for treating untreated ballast water.

  Ballast water drained from cargo ships such as container ships is mixed with aquatic organisms and bacteria that live in the port from which the water was taken. As a result, the destruction of ecosystems, such as the replacement of existing species with species that did not originally live in the sea, has become serious.

  Against this background, a convention for the regulation and management of ship ballast water and sediment (hereinafter referred to as the Convention) was adopted at the diplomatic meeting of the International Maritime Organization (IMO), and the obligation to implement ballast water management. Is scheduled to be applied from 2009 and after construction ships.

  For this reason, it is required that ships can drain clean ballast water that satisfies the convention, and various specific treatment methods for treating ballast water have been proposed (Patent Documents). 1-3).

  In order for ballast water discharged from a ship to satisfy the requirements of the above convention, it is necessary to install a treatment facility for treating the ballast water so that the ballast water satisfies the standards of the above convention. However, especially in the case of an already-built ship, there is no room for newly installing the processing equipment because various kinds of piping are originally installed in the ship, and many additional pipes and equipment for the processing equipment must be additionally arranged. It is difficult.

  Therefore, the present applicant has already proposed a ballast water supply ship that can generate ballast treated water that satisfies the above-mentioned convention standards and can supply it to other ships. If this ballast water supply ship is prepared at the port, the ballast water can be supplied to a ship that does not have ballast water treatment facilities anchored at the port, and the ship can carry cargo at other ports. Even if ballast water is discharged to load the water, the discharge standard of the above convention can be satisfied.

  However, depending on the port, it may be expected that such a ballast water supply ship cannot be prepared. In this case, a ballast water treatment facility may be installed on land, and the ballast water from the calling ship may be received and treated on land, then discharged to the sea. However, a land for the treatment facility is located on the land adjacent to the port. It is extremely difficult to secure. In addition, the discharge of ballast water from the ship is often performed off the port, and in this case, it is necessary to allow the ship to process the ballast water before entering the port.

For this reason, conventionally, a work ship (ballast water treatment ship) equipped with a treatment facility capable of receiving untreated ballast water from a ship without a ballast water treatment facility, treating it and discharging it to the sea has also been proposed. (Patent Document 4).
JP 2004-160437 A JP 2003-200156 A US Pat. No. 6,125,778 JP 2005-319975 A

  When processing untreated ballast water discharged from a ship by a ballast water treatment ship, there are the following new problems to be solved.

  In other words, the drainage capacity of ballast water is determined by the drainage pump capacity of the ship, but since ships with various drainage capacity come and go at each port, the ballast water treatment ship can cope with these various drainage capacity ships. There is a need. However, in reality, it is impossible to prepare ballast water treatment vessels having different treatment capacities (acceptance capabilities) in order to cope with vessels having various drainage capabilities.

  In addition, when a large ballast water treatment vessel with a treatment capacity sufficient to accommodate a vessel with the maximum drainage capacity is prepared, there is a problem that it is difficult to secure a berthing space in a narrow harbor. Also worse. Moreover, since untreated ballast water is not always received from a large ship, there is a problem that efficiency is poor when untreated ballast water is received from a relatively small ship.

  On the other hand, when a small ballast water treatment ship is prepared giving priority to anchoring space and mobility, the capacity to handle large ships is insufficient, so the treatment of untreated ballast water discharged from large ships is completed. As a result of taking time, there is a problem that the operation schedule of the ship is hindered.

  Therefore, the present invention has no ballast water treatment facility, and can treat untreated ballast water in a flexible manner corresponding to the drainage capacity of the receiving vessel in which the untreated ballast water is stored in the ballast tank. An object is to provide a naval ballast water treatment ship and a method for treating untreated ballast water.

  Other problems of the present invention will become apparent from the following description.

  The above problems are solved by the following inventions.

(Claim 1)
A receiving means for receiving the untreated ballast water supplied from the receiving target ship holding the untreated ballast water, and the treated water by killing aquatic organisms and bacteria in the untreated ballast water received by the receiving means. A ballast water treatment ship comprising a treatment device for generating,
The receiving means includes at least one inlet for receiving untreated ballast water and at least one stream for supplying a part of the untreated ballast water received from the inlet to another ballast water treatment ship. With an exit ,
A ballast water treatment ship having a buffer tank for temporarily storing untreated ballast water received by the receiving means before being transferred to the treatment apparatus .

(Claim 2)
The ballast water treatment vessel according to claim 1, wherein the receiving means includes a plurality of the inlet and the outlet having different diameters.

(Claim 3)
A storage tank for storing treated water generated by the treatment device;
Claim 1 or 2 ballast water treatment vessels wherein a and a supply means for supplying overboard treated water in the reservoir tank.

(Claim 4)
The treatment apparatus includes ozone injection means for killing aquatic organisms and bacteria by injecting ozone into untreated ballast water, and deaeration for degassing excess ozone in the ballast water into which ozone has been injected by the ozone injection means. The ballast water treatment ship according to any one of claims 1 to 3 , further comprising means.

(Claim 5)
The processing unit, one of the claims 1-4, characterized in that it comprises a slit plate to kill aquatic organisms and bacteria by the shearing force generated untreated ballast water when passed through the slit-like opening The ballast water treatment ship described in Crab.

(Claim 6)
A plurality of ballast water treatment vessels according to any one of claims 1 to 5 are prepared in accordance with a drainage capacity of untreated ballast water of the receiving target vessel,
By connecting the outlet of the receiving means in one ballast water treatment ship adjacent to each other and the inlet of the receiving means in the other ballast water treatment ship with a relay hose, Configure a transfer path for untreated ballast water to the other ballast water treatment ship,
Connect the inlet of any one of the ballast water treatment vessels whose inlet is not connected to the outlet of another ballast water treatment vessel and the outlet of the untreated ballast water of the receiving vessel with a connection hose. The untreated ballast water discharged from the receiving target ship is received, and a part of the untreated ballast water is sequentially transferred to the other ballast water processing ship via the relay hose, thereby being supplied from the receiving target ship. A method for treating untreated ballast water, wherein the ballast water is treated by the treatment devices in the plurality of ballast water treatment vessels.

  According to the present invention, it is possible to treat untreated ballast water without having ballast water treatment equipment and flexibly corresponding to the drainage capacity of the receiving vessel in which untreated ballast water is stored in the ballast tank. A ballast water treatment ship can be provided.

  Further, according to the present invention, the untreated ballast water can be treated in a flexible manner corresponding to the drainage capacity of the receiving target vessel in which the untreated ballast water is not stored in the ballast tank and has no ballast water treatment facility. It is possible to provide a method for treating untreated ballast water.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an example of a ballast water treatment ship according to the present invention.

  The ballast water treatment ship 1 is equipped with a receiving device 2 for receiving untreated ballast water supplied from a receiving target ship (not shown) having untreated ballast water on the deck, and in the hull. A buffer tank 3 for temporarily storing the untreated ballast water received from the receiving device 2 and a processing device 4 for treating the untreated ballast water are provided.

  The ballast water treatment ship 1 is not limited to a ship having an engine for self-navigation, but may be a barge ship without an engine for self-navigation. Alternatively, at least one of the buffer tank 3 and the processing device 4 may be provided on the deck.

  Here, untreated ballast water is ballast water stored in a ballast tank of a ship, and is not subjected to any treatment for satisfying the above-mentioned convention standards. Ballast water is water taken for storage in a ballast tank of a ship or water stored in a ballast tank of a ship. However, the ship mentioned here does not include the ballast water treatment ship according to the present invention. As such ballast water, for example, seawater, fresh water or the like is used, but seawater is preferably used in the present invention. Such ballast water includes zooplankton, phytoplankton, aquatic organisms such as microorganisms and bacteria such as Escherichia coli that inhabit the taken water area.

  The receiving device 2 is a receiving means for receiving untreated ballast water supplied from a receiving target vessel (not shown) that holds untreated ballast water, and details thereof are shown in FIG.

  FIG. 2 is a plan view showing details of the receiving device 2, and the receiving device 2 extends in the bow direction (right direction in the drawing) on the deck, and one end is connected to the buffer tank 3 in the hull. Main pipe 21 and a plurality of (five in the illustrated example) auxiliary pipes 22A to 22E that are provided so as to cross the main pipe 21 and extend in a direction crossing the hull (vertical direction in the figure). ing.

  The front ends of the auxiliary pipes 22A to 22E have hose connection ports 23A to 23E, respectively. Each of the hose connection ports 23A to 23E is capable of both inflow of untreated ballast water into the main pipe 21 and outflow of untreated ballast water from the main pipe 21 by the auxiliary pipes 22A through 22E. That is, each hose connection port 23 </ b> A to 23 </ b> E can be an inflow port for receiving untreated ballast water, and can also be an outflow port for supplying the untreated ballast water to other ballast water treatment vessels 1.

  Each of the hose connection ports 23A to 23E is opened and closed by open / close valves 24A to 24E, respectively. The on-off valves 24A to 24E are individually controlled to open / close by the control device 12 in the steering chamber 11, for example. The main pipe 21 is provided with a check valve 25, which prevents backflow from the inside of the hull during reception.

Each subpipe 22A-22E is not the same diameter, but a different diameter. Accordingly, the diameters of the hose connection ports 23A to 23E are also different. Here, the secondary pipe 22A is a pipe having a flow rate of 3000 m ³ / hr. Similarly, the secondary pipe 22B is for 2000 m ³ / hr, the secondary pipe 22C is for 1000 m ³ / hr, and the secondary pipe 22D is The sub pipe 22E for 800 m ³ / hr is a pipe for 600 m ³ / hr. For this reason, it is connectable with the connection part of the hose which has various diameters according to the acceptance amount of the untreated ballast water received.

In the present embodiment, it is assumed that the treatment capacity of the untreated ballast water treatment apparatus 4 of the ballast water treatment ship 1 is 1000 m ³ / hr. Therefore, when the supply amount of untreated ballast water that is accepted is 1000 m ³ / hr, the sub-pipe 22C is used exclusively. A more detailed description of the processing method using the function of the receiving device 2 will be described later.

  The untreated ballast water received by the receiving device 2 is sent to the buffer tank 3 through the main pipe 21. The buffer tank 3 temporarily stores the received untreated ballast water, thereby allowing a certain amount of untreated ballast water exceeding the treatment capacity of the untreated ballast water by the treatment device 4. Here, two buffer tanks 31 and 32 are provided on the deck, but the number and capacity of the buffer tanks 3 are appropriately set. Such a buffer tank 3 is preferably provided in the present invention.

  Untreated ballast water received by the receiving device 2 is sent to the processing device 4 via the buffer tank 3.

  The treatment apparatus 4 kills aquatic organisms and bacteria in the accepted untreated ballast water to produce clean treated water. The treatment apparatus 4 only needs to be able to kill aquatic organisms and bacteria in untreated ballast water to the extent that the convention is satisfied. For example, physical treatment using heat, ultrasonic waves, ultraviolet rays, silver ions, electricity, or the like. Mechanical treatment method using filtration, shearing force, cavitation, etc., chemical treatment method using ozone, oxygen removal, chlorine, etc., combined treatment method combining these two or more treatment methods, etc. Is mentioned.

  Although an example of the processing apparatus 4 preferable in the present invention will be described with reference to FIG. 3, the processing apparatus 4 is not limited to what is illustrated.

  FIG. 3 is a block diagram showing an example of the processing device 4, 41 is a filter, 42 is a pump, 43 is a processing line, 44 is an ozone mixing device, 45 is an ozone generator, 46 is a slit plate, and 47 is a degassing tank. , 48 is an exhaust ozone decomposing apparatus.

  In the processing device 4, untreated ballast water is taken into the processing device 4 from the buffer tank 3 by the operation of the pump 42 controlled by the control device 12, and aquatic organisms and bacteria are transferred in the process line 43. Processing is done to kill the species. Hereinafter, the untreated ballast water introduced into the treatment apparatus 4 is referred to as treatment target water.

  The filter 41 is provided to remove impurities from the water to be treated introduced into the treatment apparatus 4. Since the aquatic organisms and bacteria are killed by the ozone injection by the ozone mixing device 44 at the subsequent stage and the slit plate 46, the filter 41 only needs to remove relatively large contaminants such as dust in the water to be treated. .

  The ozone mixing device 44 mixes the ozone generated by the ozone generator 45 into the water to be treated that is transferred through the treatment line 43, and chemically aquatic organisms and bacteria in the water to be treated by the strong oxidation action of ozone. To be killed. Here, although the example using the gas-liquid mixing apparatus (ozone injector) which gas-liquid mixes the process target water and ozone in the process line 43 is shown as the ozone mixing apparatus 44, predetermined concentration is shown in process target water. There is no particular limitation as long as ozone can be mixed. For example, a static mixer such as a static mixer or a line mixer can be used.

  The ozone generator 45 includes, for example, a compressor 451, an oxygen generator 452, and an ozone generator 453, and ozone generated through the oxygen generator 452 and the ozone generator 453 passes through an ozone supply line 454 by the compressor 451. The ozone is mixed with the ozone mixing device 44, and ozone of a predetermined concentration is mixed into the water to be treated.

  The slit plate 46 allows water to be treated after ozone is mixed by the ozone mixing device 44 to pass at high pressure, and mechanically destroys and kills aquatic organisms and bacteria by shearing force generated at that time. To do.

  Details of the slit plate 46 are shown in FIGS.

  4 is a cross-sectional view showing the slit plate 46 in the processing line 43, and FIG. 5 is a cross-sectional view taken along line (v)-(v) in FIG. 4. As shown in FIG. Is disposed so as to block the entire flow path of the processing line 43.

  A plurality of slit-shaped openings 461 are formed in the slit plate 46. The opening width of the opening 461 is set to a width that can sufficiently exert the effect of destroying aquatic organisms and bacteria in the water to be treated by shearing force, and is preferably 200 μm to 500 μm. Thereby, aquatic organisms of about 10 μm can be killed by a shearing phenomenon that occurs when water to be treated is passed.

  The water to be treated transferred in the treatment line 43 is pumped at a high pressure toward the slit plate 46 by the operation of the pump 42. The water to be treated that has been pumped tries to pass through the slit-like opening 461 of the slit plate 46 in a turbulent state, and a shearing phenomenon occurs when it passes through this opening 461, thereby aquatic organisms and bacteria in the water to be treated. Destroy and kill.

  In order to exhibit the effect of destruction and killing due to the shearing force, the slit plate 46 is preferably attached in a direction orthogonal to the flow direction of the water to be treated.

  Although the slit plate 46 is closely attached in the processing line 43, although not shown, it is preferable to be interposed in the processing line 43 by a flange or the like. Thus, the slit plate 46 can be easily removed from the processing line 43, and the slit plate 46 can be cleaned as necessary.

  The shape of the plurality of slit-like openings 461 formed in the slit plate 46 is preferably a long and narrow rectangular shape as illustrated in FIG. The number of the openings 461 is not particularly limited, and is appropriately set according to the pressure loss of the water to be treated and the occurrence of the shear phenomenon.

  Although all the openings 461 may be formed to have the same length, as shown in FIG. 6, the center portion may be formed longer and the end portion may be formed shorter in accordance with the cross-sectional shape of the processing line 43. Good. Further, the shape of each opening 461 is not limited to a linear shape, and may be formed in a curved shape such as an arc as shown in FIG.

  Further, the number of slit plates 46 disposed in the processing line 43 is not limited to one, and a plurality of sheets (46A, 46B) may be disposed at intervals as shown in FIG. . The number of sheets is not particularly limited as long as it is plural.

  When a plurality of slit plates 46A and 46B are provided, the width, size, number, and shape of the respective openings 461 of the slit plates 46A and 46B are made different so that the shearing phenomenon is more effectively exhibited. It is preferable to make it possible. Also, the arrangement of the openings 461 of the adjacent slit plates 46A and 46B may be different, for example, the length directions of the openings 461 of the slit plates 46A and 46B may be arranged to be orthogonal to each other. It is preferable for the reason. By these, a shear phenomenon can be exhibited more effectively and the destruction and killing effects of aquatic organisms and bacteria in the water to be treated can be further improved.

  The water to be treated after passing through the slit plate 46 is sent to the deaeration tank 47, and the undissolved surplus ozone in the water to be treated is deaerated. In the deaeration tank 47, partition walls 471 standing from the bottom of the tank to the front of the tank ceiling and partition walls 472 extending from the tank ceiling to the front of the tank bottom alternately The upper flow path and the lower flow path of the water to be treated are alternately formed in parallel. As a result, the water to be treated introduced into the deaeration tank 47 alternately passes through the upward flow path and the downward flow path, and in the process, the surplus ozone mixed in in the bubble state is treated. Remove from the target water and collect in the exhaust ozone chamber 473 at the top of the tank.

  Exhaust ozone accumulated in the exhaust ozone chamber 473 is sent from the deaeration tank 47 to the exhaust ozone decomposing device 48 where it is decomposed and discharged, for example, from the deck to the outside of the ship.

  In this way, the water to be treated becomes clean treated water that has been killed so that aquatic organisms and bacteria are below a predetermined value.

  In the embodiment shown in FIG. 3, ozone is mixed into the water to be treated by the ozone mixing device 44 and then processed by passing the slit plate 46. However, the present invention is not limited to this, and the slit plate 46 is allowed to pass. It is good also as a structure which mixes and processes ozone in the water to be processed after that by the ozone mixing device 44.

  Furthermore, as another embodiment of the processing device 4, a membrane device such as an MF membrane or a UF membrane that can be removed by filtering aquatic organisms and bacteria can be used. Further, as shown in FIG. 3, an ozone mixing device 44, an ozone generator 45, and a degassing tank 47 may be arranged in the subsequent stage of the membrane device to perform ozone injection and excess ozone deaeration.

  The treated water generated by passing through the treatment device 4 may be discharged directly from the ballast water treatment vessel 1 to the sea by the drainage pump 5 controlled by the control device 12 in order to satisfy the discharge standards of the above-mentioned convention.

  Although not shown, it is also preferable to provide a storage tank on the deck of the ballast water treatment ship 1 or inside the hull and store the treated water in the storage tank. In this case, by providing a supply means for supplying the treated water in the storage tank to the outside of the ship, if necessary, a ship that does not have a ballast water treatment facility, a ship that cannot operate the treatment facility due to a failure, etc. Treated water can be supplied.

  Further, by having such a storage tank, it is confirmed that the treated water generated by the treatment device 4 is clean treated water in which aquatic organisms and bacteria are killed to the extent that the treaty is satisfied. It is also possible to inspect and confirm in advance by sampling the treated water. Therefore, it is preferable to provide an inspection means for inspecting that the treated water is clean treated water. Based on the sampling results, it can be shown to the target ship that it is clean treated water that has been killed so that aquatic organisms and bacteria are below the specified value, providing safe and reliable treated water can do.

  Further, even when the treated water is discharged to the sea, it is preferable that the treated water is once passed through the storage tank so that it can be discharged to the sea after it is confirmed that the treated water is clean treated water.

  Next, a method for receiving untreated ballast water from a receiving target ship having a drainage capacity exceeding the treatment capacity of the ballast water treatment ship 1 by the ballast water treatment ship 1 and performing the treatment will be described with reference to FIGS. I will explain.

Here, it is assumed that the drainage capacity of untreated ballast water of the receiving target ship 200 that holds untreated ballast water is 3000 m ³ / hr. Since the treatment capacity of the ballast water treatment ship 1 shown in the present embodiment is 1000 m ³ / hr, it is possible to cope with untreated ballast water drained from the receiving target ship 200 by using three ballast water treatment ships 1. can do.

  First, three (1A, 1B, 1C) ballast water treatment vessels 1 are placed side by side on a receiving target vessel 200 to drain untreated ballast water. Adjacent ballast water treatment vessels 1 </ b> A to 1 </ b> C are moored by the mooring device 101 so as to maintain a certain distance.

Thereafter, the supply hose 201 extending from the receiving target ship 200 side to one hose connection port 23A of the secondary pipe 22A for 3000 m ³ / hr of the receiving device 2 in the ballast water treatment ship 1A closest to the receiving target ship 200 is provided. Connect.

Next, one hose connection port 23B of the secondary pipe 22B for 2000m ³ / hr of the receiving device 2 in the ballast water treatment ship 1A and the reception in the adjacent ballast water treatment ship 1B adjacent to the ballast water treatment ship 1A Similarly, one hose connection port 23 </ b> B of the secondary pipe 22 </ b> B for 2000 m ³ / hr of the device 2 is connected by the relay hose 102.

Further, while the hose connection port 23C of the sub-pipe 22C for 1000 m ³ / hr of the receiving apparatus 2 in ballast water treatment boat 1B in the middle, the outermost for 1000 m ³ / hr of the receiving apparatus 2 in ballast water treatment vessels 1C One hose connection port 23 </ b> C of the secondary pipe 22 </ b> C is connected by the relay hose 103.

  Since the receiving device 2 of the ballast water treatment ship 1 has the hose connection ports 23A to 23E at both ends of the auxiliary pipes 22A to 22E arranged on both sides of the main pipe 21, the hoses 102 and 103 and the supply 201 This connection work can be performed on either the starboard side port side of the ballast water treatment ship 1.

  Here, the ship 200 to be received is provided with a supply pipe 203 having a supply hose 201 in the hull 202, and a ballast tank (not shown) is provided by a ballast water drain line 204 provided in the hull 202. ), The untreated ballast water is supplied toward the ballast water treatment ship 1 by the operation of the drainage pump 205.

Thus, after connecting each ballast water treatment ship 1A-1C and the receiving object ship 200 by the relay hoses 102 and 103 and the supply hose 201, if the supply pump 205 of the receiving object ship 200 is operated, the receiving object ship 200 will be demonstrated. Is supplied with untreated ballast water of 3000 m ³ / hr, which is the drainage capacity of the receiving target ship 200, to the ballast-treated water supply ship 1A. Since the processing capability of the ballast water treatment vessels 1A is 1000 m ³ / hr, of untreated ballast water accepted 3000 m ³ / hr, a part (2000m ³ / hr) is the sub pipes 22B and relays hose 102 The untreated ballast water of 1000 m ³ / hr is treated by the treatment device 4 of the ballast water treatment ship 1A.

Moreover, since the processing capability of the ballast water treatment boat 1B is also 1000 m ³ / hr, of untreated ballast water accepted 2000 m ³ / hr, a part (1000m ³ / hr) is the sub pipe 22C and the relay The untreated ballast water of 1000 m ³ / hr is supplied to the adjacent ballast water treatment ship 1C via the hose 103 and treated by the treatment device 4 of the ballast water treatment ship 1B.

Furthermore, since the treatment capacity of the ballast water treatment ship 1C is also 1000 m ³ / hr, the accepted untreated ballast water of 1000 m ³ / hr is treated by the treatment device 4.

  At this time, the open / close valves 24A to 24E of the hose connection ports 23A to 23E that are not used by the receiving device 2 are closed in the ballast water treatment vessels 1A to 1C.

In this manner, the untreated ballast water of 3000 m ³ / hr, which is the drainage capacity of the receiving target ship 200, is processed in parallel by the three ballast water treatment ships 1A to 1C each having a treatment capacity of 1000 m ³ / hr. For this reason, the receiving target ship 200 can drain the ballast water (untreated ballast water) from the inside of the ballast tank without any difference from the case of draining the ballast water as usual.

  That is, according to the ballast water treatment ship 1 and the treatment method of untreated ballast water using the same according to the present invention, the untreated ballast water drained from the acceptance target ship 200 is treated by a plurality of ships, thereby receiving the object. Treatment of untreated ballast water corresponding to the drainage capacity of the ship 200 is possible. For this reason, even if it does not bother to enlarge the ballast water treatment ship 1, it is possible to treat untreated ballast water in a flexible manner corresponding to the drainage capacity of the receiving target ship 200 that does not have the treatment facility for untreated ballast water. Become. There is no possibility that the receiving target ship 200 will interfere with the operation schedule.

  In short, when the processing capacity of the ballast water treatment ship 1 is X and the drainage capacity of the receiving target ship 200 is Y, if Y> X, the ballast water treatment ship 1 may be prepared as Y / X. .

  In addition, the receiving ship 200 side only needs to provide a supply pipe 203 having a supply hose 201 and connect it to an existing drainage line 204. Of course, the ship 200 to be received does not need to be repaired at all. Normally, the ballast water outlet opening on the side of the hull and the ballast water treatment ship 1 are directly connected by a hose. Also good.

  Further, the supply hose 201 may be in the form held by the ballast water treatment ship 1 side.

  The ballast water treatment ship 1 is provided with a water meter 13 that is a measuring means for measuring the amount of received untreated ballast water. Based on the measurement result, the control device 12 performs an integrated flow rate, an estimated processing completion time, and the like. And the information can be displayed, or the information can be presented to the receiving target vessel 200. It is also possible to charge according to the measurement result.

  FIG. 11 shows another aspect of the receiving device. The same reference numerals as those in FIG. 2 denote the same components.

  This receiving device 20 is provided with only one sub pipe 26 branched in a T-shape at the tip of a main pipe 21 provided on the deck. Hose connection ports 27 are provided at both ends of the sub-pipe 26, respectively. Reference numeral 28 denotes an on-off valve.

  Since the two hose connection ports 27 have the same configuration, one hose connection port 27 will be described with reference to FIG.

  The hose connection port 27 is provided concentrically so that a plurality of hose connection ports 27a to 27e having different diameters protrude from the hose connection port 27a having a larger diameter toward the hose connection port 27e having a smaller diameter. ing.

Here, for example, the hose connection port 27a is for 3000 m ³ / hr, the hose connection port 27b is for 2000 m ³ / hr, the hose connection port 27c is for 1000 m ³ / hr, the hose connection port 27d is for 800 m ³ / hr, and the hose connection The port 27e is a hose connection port for 600 m ³ / hr. For this reason, it is connectable with the connection part of the hose which has several types of diameter according to the drainage amount of the untreated ballast water from a target ship exactly like the receiving device 2 mentioned above. In particular, according to the receiving device 20, it is possible to connect the connecting portions of hoses having a plurality of calibers with only one sub-pipe 26, so that the installation space on the deck can be remarkably saved. Of course, as in the case of the receiving device 2 shown in FIG. 2, the connection location of the inflow side hose and the outflow side hose is not greatly different in the front-rear direction on the deck. Since it can be performed at almost the same location, the work can be simplified.

The block diagram which shows an example of the ballast water treatment ship which concerns on this invention Plan view showing an example of a receiving device Configuration diagram showing an example of a processing apparatus Sectional view showing slit plate in processing line (V)-(v) sectional view of FIG. Sectional drawing which shows the other example of opening of a slit board Sectional drawing which shows the further another example of opening of a slit board Sectional drawing which shows the other example of the slit board in a processing line Side view for explaining a method of treating untreated ballast water from a target ship by a ballast water treatment ship The top view explaining the method of processing the untreated ballast water from a target ship with a ballast water treatment ship The top view which shows the other aspect of a receiving apparatus The enlarged view which shows the part of the hose connection port of the receiving apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1A-1C: Ballast water treatment ship 11: Steering room 12: Control device 13: Water meter 2, 20: Receiving device 21: Main piping 22A-22E: Sub piping 23A-23E: Hose connection port 24A-24E: Opening and closing Valve 25: Check valve 26: Sub piping 27, 27a to 27e: Hose connection port 3, 31, 32: Buffer tank 4: Processing device 41: Filter 42: Intake pump 43: Processing line 44: Ozone mixing device 45: Ozone Generator 451: Compressor 452: Oxygen generator 453: Ozone generator 454: Ozone supply line 46, 46A, 46B: Slit plate 461: Opening 47: Degassing tank 471, 472: Partition wall 473: Exhaust ozone chamber 48: Exhaust Ozonizer 5: Drain pump 102, 103: Relay hose

Claims (6)

A receiving means for receiving the untreated ballast water supplied from the receiving target ship holding the untreated ballast water, and the treated water by killing aquatic organisms and bacteria in the untreated ballast water received by the receiving means. A ballast water treatment ship comprising a treatment device for generating,
The receiving means includes at least one inlet for receiving untreated ballast water and at least one stream for supplying a part of the untreated ballast water received from the inlet to another ballast water treatment ship. With an exit ,
A ballast water treatment ship having a buffer tank for temporarily storing untreated ballast water received by the receiving means before being transferred to the treatment apparatus .   The ballast water treatment vessel according to claim 1, wherein the receiving means includes a plurality of the inlet and the outlet having different diameters. A storage tank for storing treated water generated by the treatment device;
Claim 1 or 2 ballast water treatment vessels wherein a and a supply means for supplying overboard treated water in the reservoir tank. The treatment apparatus includes ozone injection means for killing aquatic organisms and bacteria by injecting ozone into untreated ballast water, and deaeration for degassing excess ozone in the ballast water into which ozone has been injected by the ozone injection means. The ballast water treatment ship according to any one of claims 1 to 3 , further comprising means. The processing unit, one of the claims 1-4, characterized in that it comprises a slit plate to kill aquatic organisms and bacteria by the shearing force generated untreated ballast water when passed through the slit-like opening The ballast water treatment ship described in Crab. A plurality of ballast water treatment vessels according to any one of claims 1 to 5 are prepared in accordance with a drainage capacity of untreated ballast water of the receiving target vessel,
By connecting the outlet of the receiving means in one ballast water treatment ship adjacent to each other and the inlet of the receiving means in the other ballast water treatment ship with a relay hose, Configure a transfer path for untreated ballast water to the other ballast water treatment ship,
Connect the inlet of any one of the ballast water treatment vessels whose inlet is not connected to the outlet of another ballast water treatment vessel and the outlet of the untreated ballast water of the receiving vessel with a connection hose. The untreated ballast water discharged from the receiving target ship is received, and a part of the untreated ballast water is sequentially transferred to the other ballast water processing ship via the relay hose, thereby being supplied from the receiving target ship. A method for treating untreated ballast water, wherein the ballast water is treated by the treatment devices in the plurality of ballast water treatment vessels.

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