JP4374830B2 - Purified water supply system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to purification Kamizu supply system.
[0002]
[Prior art]
Crude oil tankers, natural gas carriers and ore carriers will become lighter and unbalanced after unloading. Therefore, seawater and fresh water (hereinafter referred to as ballast water) in the unloaded water area are injected into the emptied ship and returned to the loaded state of the load to return to the port. The injected ballast water is discharged into the sea just before loading the next load at the next port of call or at the return port.
[0003]
However, the released ballast water contains oil and pollutants such as bacteria and plankton in the loaded ballast water. When these pollutants are released to the port of call, they are physically contaminated with oil. May cause an international problem that causes fishery damage to fish and shellfish culture due to abnormal breeding of different types of bacteria and plankton, causing red tide, and shellfish toxic plankton growing There is.
[0004]
To avoid this, in order to remove the contaminants of the ship ballast water, and the case of providing a purifying apparatus for ballast water dedicated on board, on board the bus Las bets water depth 2000m above sea, plankton comparison There is a case where the ballast water in the ship is exchanged with the ocean water of the ocean.
[0005]
In addition, in a water area where ballast water that is not subjected to purification treatment is discharged on the ship, there is a purification treatment method that removes contaminants brought in by water diluted with water in the water area.
[0006]
For example, Japanese Patent Application Laid-Open No. 2001-293474 discloses this type of conventional technology.
[0007]
[Problems to be solved by the invention]
In the method of purifying on board in the conventional processing method described above, the prior SL purifier is expensive and there is a problem that labor burden of cleanup and equipment maintenance, etc. sailors to do operation occurs.
[0008]
In addition, since the purification operation is performed using the electric power in the ship, it is necessary to increase the power supply equipment in the ship depending on the case, and there arises a problem that the purification device installation cost increases.
[0009]
On the other hand, in the conventional treatment method, the method of exchanging ballast water in the ship over the ocean with a depth of 2000 m or more and the ocean water with relatively little plankton and the ballast water in the ship needs to travel to a sea area with a depth of 2000 m or more. If there is no corresponding sea area along the route, the cost of moving to that sea area will be required, and the number of sailing days will increase, causing the problem of reducing the efficiency of commercial voyages.
[0010]
In addition, the above-mentioned method of exchanging ballast water in the ship is dangerous because it is dangerous if the weather is not calm on the sailing, and the normal replacement method is to add Western Shanghai water to the ballast water in the ship. A method of diluting and purifying ballast water while injecting and overflowing is common, and there arises a problem that the concentration of the original pollutant can be purified only to a concentration of about 20% to 30%.
[0011]
On the other hand, in areas where ballast water that has not been purified on board is discharged, purification is performed to remove contaminants brought in by water diluted in the area to prevent damage to the fishery industry. Although there is a method, it is necessary to purify a large amount of water that has been drained and diluted in the water area, and there is a problem that a large amount of purification cost is generated.
[0012]
In addition, when soft water must be used as ballast water, there is no water area with a water depth exceeding 2000 m, so only the method of purifying inside the ship in the conventional treatment method described above can be taken, and the purification device is expensive, In addition, there is a problem that a labor burden such as purification work and equipment maintenance is generated on the sailors for operation. In addition, since the purification operation is performed using the electric power in the ship, it is necessary to increase the power supply equipment in the ship depending on the case, and there arises a problem that the purification device installation cost increases.
[0013]
An object of the present invention is to provide a marine contaminated difficulty IKiyoshi Kamizu supply system contaminants, such as oil and plankton.
[0014]
[Means for Solving the Problems]
The above-mentioned purpose was to purify the purified ballast water from the first pipe through the pump by holding the contaminated ballast water in the water tank, and pumping it from the water tank to the purification device. The purified water is achieved by discharging the purified water into the water area where the ship is anchored by the second pipe .
[0015]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to FIG.
In FIG. 1, a purified water supply system 3 having a purification device 2 as a purification means is disposed in a water area 1 where plankton and harmful microorganisms exist. The purified water supply system 3 includes a pipe 4 for introducing raw water in the water area, a purification device 2 for purifying the raw water and reducing the volume of sludge generated by the purification process, a pipe 6 for discharging the purified water 5, The water tank 7 that holds the purified water 5, a pipe 8 for supplying the purified water 5 in the water tank 7 to the outside of the water tank 7, a pump 9, and a pipe 10 are configured.
[0016]
The purified water 5 is supplied by a pipe 10 to a ship 11 which is pressurized by a pump 9 as ballast water, for example, and anchored in the water area 1 through the pipe 10, for example. As purification methods of the purification device 2 as a purification means, a combination of a coagulation precipitation method, a UV sterilization method and a precipitation method, a combination of an ultrasonic sterilization method and a precipitation method, a combination of a sterilization method and a precipitation method by water pressure injection, In addition, a physical / biological purification method purification apparatus such as a coagulation levitation separation method using pressure levitation, a string-like biofilm treatment method, or a coagulation separation method combined with magnetic separation is applied.
[0017]
According to the purification device and the purified water supply system of FIG. 1, oil in the raw water in the water area 1 and contaminants such as bacteria and plankton are passed through the purification device 2 by passing water through the purification device 2. The pollutant is removed at a high removal rate of 90% or more to be purified, becomes purified water 5 and is stored in the water tank 7, and this is used for the ship 11 as ballast water.
It is also possible to provide the water quality analysis result of the purified water 5 as a document from a supplier who has performed the purification process, or to distribute the water quality analysis data of the purified water and the amount of the purified water over the Internet. In this case, the water quality management person in the water area where the ship calls can receive the water quality analysis data and the amount of purified water, and the ballast water discharge permission can be determined before the ship calls. Water discharge work can be performed more smoothly.
[0018]
As a result, the port area manager can easily check the quality of the ballast water in the ship that has called at the port using the above-mentioned documents or the Internet information. Purified ballast water is released in the water area, so it is contaminated with oil as before, bacteria and plankton grow abnormally and red tide is generated, shellfish toxic plankton grows, It is possible to suppress the occurrence of damage to fish and shellfish in the water area.
[0019]
Since it is not necessary to install a purification device exclusively for ballast water in the ship, work for installing and purifying additional power supply facilities is eliminated, and the labor of the crew is not increased.
[0020]
As mentioned above, since the purified ballast water is poured into the ship, it is not necessary to replace the ballast water with offshore seawater having a depth of 2000 m or more, and there is no need for the cost of moving the sea area. There will be no increase and the efficiency of commercial voyage will increase.
[0021]
According to this embodiment, since the high quality of ballast water during unloaded can be injected into the ship, and improved quality of ballast water as compared to the method to replace the traditional ballast water purifying ship ballast water, the The damage to fish and shellfish culture in the ballast water discharge area can be suppressed.
[0022]
On the other hand, since there is no need for ballast water exchange work in the ship, the labor of the ballast water purification work by the crew is eliminated, and the labor of the crew is reduced.
[0023]
In addition, when soft water must be used as ballast water, there is no water area with a water depth exceeding 2000 m. Therefore, only the method of purifying onboard in the conventional treatment method described above can be used. Injecting water into the ship eliminates the need for purification equipment, and the crew does not generate labor burdens such as purification work or equipment maintenance, and does not use power on board for purification operations. There is no need to install additional equipment, and there is no need to install purification equipment, there is no labor burden on the crew, and there is an effect of eliminating the need for additional power equipment.
[0024]
Note that the purified ballast water cannot be mounted by any means, and for the ship 12 mounting the contaminated ballast water, the purification apparatus and the purified water supply system of FIG. 2 shown as another embodiment according to the present invention are used. Can be supported.
[0025]
In FIG. 2, the ballast water 13 is taken out from the pipe 10 into the water tank 7 through the pump 9 and retained, and is pumped up from the pipe 6 to the purification device 2 for purification, and the purified water enters the water area 1 through the pipe 4. Let go.
By purifying the polluted ballast water and discharging it into the water area in this way, the ballast water discharge area is contaminated with the oil contained in the ballast water as polluted, or bacteria and plankton grow abnormally and the red tide Or shellfish toxic plankton can grow and damage to fish and shellfish culture in the water area can be suppressed. Further, in this embodiment, since the purification process can be performed without diluting the ballast water in the ship, contaminants in the ballast water can be removed with a small purification cost.
[0026]
On the other hand, it waters Ru Umidea cases, absolutely if purifier and purified water supply system for supplying Figure 2 ballast water purification seawater can not be installed, in FIG. 3, shown as another embodiment according to the present invention It is possible to cope with the means shown.
[0027]
In FIG. 3, soft water of rivers and sewage treatment water close to the water area is supplied into the water tank 7 of the purified water supply system through a pipe 14, and large waste etc. is separated and purified roughly by the purification device 2. Water is stored in the water tank 7 through the pipe 6. This purified soft water is pressurized as ballast water by a pump 16 and supplied to a ship 19 anchored in the water area 1 through pipes 17 and 18, for example, for a fee. The port of call water area manager can confirm that the quality of ballast water in the ship that has called at the port is soft water according to the above documents, so it is easy to confirm that the ship is allowed to enter the port, and the ballast water is released in the water area. As a result, all bacteria and plankton that lived in soft water will die in the seawater, causing abnormal breeding and red tides, and shellfish-toxic plankton growing, resulting in fish and shellfish in that water area. It is possible to reduce damage to the aquaculture.
[0028]
When the water area is the sea where soft water is a valuable water resource, such as the Middle East area, it is possible to cope with the means shown in FIG. 4 as another embodiment of the present invention.
[0029]
In FIG. 4, the ballast water 15 of the soft water of the ship 19 is taken out from the pipe 10 into the aquarium 7 through the pump 9, and the ballast water 15 in the ship is suspended and pumped from the pipe 6 to the purification device 2 for purification. Water can be sent through the pipe 21 as land gardening, soft water for agriculture, or drinking water.
In this way, the polluted soft water ballast water is purified and can be reused as horticultural or agricultural water in the water area or as advanced drinking water after being further processed. Therefore, bacteria and plankton grow abnormally in the water area where the ship calls, causing red tides, and shellfish-toxic plankton growing, resulting in the elimination of damage to fish and shellfish in the water area. .
[0030]
According to the present embodiment has described the case of arranging the purification Kamizu supply system into the body of water, the whole or a part of the front KiKiyoshi Kamizu supply system is the same effect even on land.
[0031]
As described above, injecting ballast water that has been purified in the ship, will release this ballast water, it is possible to prevent contamination including contamination of high concentrations of by that body of water in the ballast water release in ballast water discharged waters . Moreover, the pollution which arises by ballast water discharge | release in a ballast water discharge | release water area can be prevented by hold | maintaining the ballast water which has not been purified in a purified water supply system, and discharging | emitting to a water area after purifying with a purification apparatus.
[0032]
Furthermore, according to the present embodiment, the water supply analysis system is provided with a purified water supply system having a water tank in which the purified water is stored in advance by the purifier in the water area where the ship calls, and the pre-purified water is used as ballast water. Can be supplied to the ship with documentation showing the inspection. As a result, the port of call water area manager can confirm the quality of the ballast water in the ship that has called at the port according to the above documents, so that it is easy to confirm that the ship is allowed to enter the port, and the ballast water is released in the water area. Contaminated with oil, abnormally breeding bacteria and plankton, generating red tides, and shellfish toxic plankton multiply, resulting in no damage to fish and shellfish in the waters.
[0033]
In addition, since it is not necessary to install a purification device dedicated to ballast water in the ship, there is no need to install additional power supply equipment, and work for purification is eliminated, so that the effect of not increasing the labor of seafarers is produced.
[0034]
Further, for the ship 12 carrying the polluted ballast water, in the water area having the purification device and the purified water supply system, the ship ballast water is taken out and held in the system and purified by the purification device. Since it can be discharged into the water area, the oil contained in the ballast water as a pollutant contaminates the water discharge area of the ballast water, abnormally breeds bacteria and plankton, generates red tide, and shellfish-toxic plankton grows. As a result, there is an effect that no damage is caused to the culture of fish and shellfish in the water area. Further, since the purification treatment can be performed without diluting the ballast water in the ship, there is an effect that contaminants in the ballast water can be removed with a small purification cost.
[0035]
Further, since water can be supplied together with the documents of the water quality testing as soft water as ballast water in a ship and stored in the water tank of the purified water supply system Umidea Ru case, the soft water rivers and sewage water, boats water management The person confirmed that the quality of the ballast water in the ship that called at the port was soft water according to the above documents, and that the bacteria and plankton that lived in the soft water were all in the seawater by releasing the ballast water in the water area. As a result, the fish breeds abnormally and generates red tides, or shellfish toxic plankton grows, resulting in no damage to fish and shellfish in the water area.
[0036]
Also, when the water area is the sea where soft water is a valuable water resource, such as in the Middle East, soft water ballast water is stored in a water tank in a purified water supply system having a purification device and purified by the purification device. Purified water can be sent as land-based horticulture, soft water for agriculture, or drinking water.
[0037]
In this way, the polluted soft water ballast water is purified and can be reused as horticultural or agricultural water in the water area or as advanced drinking water for further treatment. Therefore, bacteria and plankton grow abnormally in the water area where the ship calls, causing red tides, and shellfish-toxic plankton growing, resulting in the elimination of damage to fish and shellfish in the water area. .
[0038]
Incidentally, before KiKiyoshi Kamizu supply system, all or part similar effects have a structure for moving the sea occurs.
[0039]
【The invention's effect】
The present invention can provide a purification Kamizu supply system Ru can suppress the contamination by contaminants such as oil and plankton in unloading destination ballast water discharge waters.
[Brief description of the drawings]
FIG. 1 is a flow diagram of a purified water supply system provided with an embodiment according to the present invention.
FIG. 2 is a flow chart of a purified water supply system provided with another embodiment according to the present invention.
FIG. 3 is a flow diagram of a purified water supply system provided with another embodiment according to the present invention.
FIG. 4 is a flow chart of a purified water supply system provided with another embodiment according to the present invention.

Claims (1)

For ships that have been equipped with polluted ballast water, the polluted ballast water is retained in a water tank via a pump from the first pipe, and is pumped up and purified from this water tank to a purification device. A purified water supply system , wherein the water is discharged into a water area where the ship is anchored by two pipes .

Images