CN1938229A - Process for producing ship ballast water, ship ballast water producing apparatus and use thereof - Google Patents
Process for producing ship ballast water, ship ballast water producing apparatus and use thereof Download PDFInfo
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- CN1938229A CN1938229A CN 200580010233 CN200580010233A CN1938229A CN 1938229 A CN1938229 A CN 1938229A CN 200580010233 CN200580010233 CN 200580010233 CN 200580010233 A CN200580010233 A CN 200580010233A CN 1938229 A CN1938229 A CN 1938229A
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Abstract
A process for producing ship ballast water, comprising the microbe removal step of causing seawater to pass through a microbe filtration membrane to thereby remove microbes from the seawater and the back washing step of cleaning the microbe filtration membrane by back washing. Microbes of seawater can be removed by a process other than that for annihilating them.
Description
Technical field
The present invention relates to be used to make the method and apparatus of ship ballast water (following also abbreviate as " water ballast "), removed microorganism in this water ballast, and it is introduced boats and ships to stablize its center of gravity when ship navigates by water.
Background technology
There is such situation, crude oil carrier, the ore laden vessel, automobile laden vessels etc. navigate by water under the situation of unloaded or little freight tonnage.In the case, hull can be owing to buoyancy raises.This situation may cause not sinking to below the water surface such as its water screw or rudder for the breakneck circumstances of underway boats and ships, or the boats and ships that navigate by water on the water surface are subjected to the remarkably influenced of stormy waves and weaken its controllability.Buoyancy when therefore, boats and ships 30% to 40% the water ballast that all carries formation standard freight tonnage weight is usually advanced to regulate boats and ships.
For example, the crude oil carrier transportation is what to be undertaken by the navigation between the Oil Producing Countries and the oil consuming countries.Navigate by water the not loading of crude oil carrier of oil producing country from the oil consuming countries, and when in the oil consuming countries, the cargo tank that the seawater around the landing place etc. is introduced into boats and ships is provided as the usefulness of water ballast.On the other hand, the boats and ships deballast in offshore anchorage or the harbour in oil producing country that loads water ballast also loads crude oil once more in this cargo tank.
In recent years, the water ballast of discharging from boats and ships has received serious concern in the world, because originally not living in the microorganism of specified sea areas is introduced into, and causing Marine ecosystems to be damaged, it brings great danger and ocean environment is caused global destruction for again conversely the life that stays in this marine site people on every side.Under this situation,, all considering the whole bag of tricks at the international level in order to remove the purpose of microorganism from water ballast.
Remove method of microorganism as the seawater that is used for from introducing as water ballast, method (Japanese Patent of No.2003-181443 is communique openly) by adding the hot sea water kill microorganisms has been proposed, make the deactivated method of microorganism (the day disclosure communique of the unexamined PCT patent application of No.2000-515803 by apply ultraviolet ray to seawater, with the open communique of the Japanese Patent of No.Hei 11-265684), make seawater pass through the method (the open communique of the Japanese Patent of No.2003-334563) of electrolyzer kill microorganisms, the method of iodinate (the day disclosure communique of the unexamined PCT patent application of No.2000-504851), the method that hypochlorous acid is handled (the open communique of the Japanese Patent of No.Hei 04-322788) etc.
Summary of the invention
Yet the method for seawater heating depends on how to obtain heat energy and uneconomical economically, and this method also is difficult to complete killing microorganisms.In addition, applying ultraviolet method to seawater needs the electric energy of enormous amount to eliminate all microorganisms or it is lost activity, and because when the seawater of high flow rate is subjected to handling, must be equipped with a large amount of UV equipment, perhaps other former thereby increased the cost of erecting equipment sharp in addition.In addition, make seawater can not eliminate all microorganisms in order to the method for sterilization effect the elimination of micro-organisms of the free chlorine that generates with electrolysis, because there are some microorganisms not eliminated by free chlorine by electrolyzer.In addition, by using such as iodine, the method for the chemicals treatment seawater of hypochlorous acid etc. needs the medicament of high density to eliminate the bacterium of some type, therefore after handling, use a large amount of in and be inevitable with seawater in the medicament.
As mentioned above, kill the method for microorganism of living in the seawater, be difficult to guarantee complete the elimination of micro-organisms, and the pollution that is caused by dead microorganism also receives publicity to Ecosystem System Influence.In addition, because the number of the remaining microorganism that does not kill during transportation increases on a small quantity, therefore such method of microorganism is removed in the expectation exploitation fully forwardly.Thereby although knownly make seawater pass through filtering membrane from seawater, to remove method of microorganism (Japanese Patent of No.2003-154360 open communique), but being used to for example to wash in the process such as the fishery products of fish and shellfish with the membrane filtration water (membrane filtered water) that this method obtains, is not to be used as ship ballast water.
A kind of method and producing apparatus that is used to make ship ballast water is provided according to an aspect of the present invention, the microorganism that wherein lives in the seawater is removed in the mode of the elimination of micro-organisms not, and provides and will be used as the using method of ship ballast water by the membrane filtration water that such ship ballast water manufacture method obtains.
In this case, as the result who reaches the diligent studies of finding achievement, the present inventor has finished the present invention, and this invention comprises following content:
In the method that is used for making ship ballast water, the step that this method comprises has, from seawater, remove microorganism by the filtering membrane that seawater is passed through to remove microorganism, and the backwash filtering membrane is so that its cleaning, by for example being stored in via the membrane filtration water that the step of removing microorganism obtains in the ballast tank, this water can be introduced boats and ships in case of necessity; Provide to the inner ballasting water tank that is provided with of boats and ships by the membrane filtration water that in boats and ships, carries out above-mentioned each step and will obtain like this, installed device on the ground, it is unnecessary that installing space and surfaceman's work all becomes; Though and the seawater in the port area of stay of ship contains the oil of the meeting contaminated filter film of relative high level, by before handling seawater, removing oil content in advance and the processing efficiency of improved filter membrane with filtering membrane.
In other words, provide a kind of method that is used to make ship ballast water according to an aspect of the present invention, this method comprises by making seawater pass through the microbe filter film removes microorganism from seawater; And backwash microbe filter film is so that the step of its cleaning.
In addition, in the above-mentioned method that is used for making ship ballast water, be preferably in by removing the oil content in the seawater before the microbe filter film processing seawater at least in advance.
In addition, in the above-mentioned method that is used for making ship ballast water, preferably this microbe filter film is a hollow-fiber film.
In addition, in the above-mentioned method that is used for making ship ballast water, preferably by the oil content in the absorption removal seawater that uses hydrophobic absorption agent.
A kind of ship ballast water producing apparatus is provided according to a further aspect in the invention, and this equipment comprises the seawater generator that is used to provide seawater; Be used for removing the microbe filter film device of microorganism from the seawater that is provided; With the backwash water generator that is used for providing backwash water to the microbe filter film device.
In addition, best above-mentioned ship ballast water producing apparatus also comprises the ballast tank that is used to store membrane filtration water.
In addition, in above-mentioned ship ballast water producing apparatus, preferably will be used for being arranged on from the oil content removal device of seawater removal oil content at least the upstream of microbe filter film device.
In addition, in above-mentioned ship ballast water producing apparatus, preferably the microbe filter film device is immersion type hollow fiber film device, perhaps pressure-type hollow fiber film device.
Also have an aspect that using method as the membrane filtration water of ship ballast water is provided according to of the present invention, wherein obtain membrane filtration water by the step of removing microorganism in the above-mentioned method that is used for making ship ballast water.
According to the present invention, pass through the microbe filter film removing microorganism from seawater by making seawater, can remove the microorganism that lives in the seawater in the mode of kill microorganisms not, and the membrane filtration water that obtains like this can be used as ship ballast water.
Description of drawings
Fig. 1 is the synoptic diagram that shows the example that will be installed in the ballast water producing apparatus on the boats and ships;
Fig. 2 is the schema of the ballast water producing apparatus of use in the example 1;
Fig. 3 is the schema of the ballast water producing apparatus of use in the example 2.
Embodiment
One embodiment of the present of invention will be described as follows.For example, the seawater of the port area of stay of ship can be as for the seawater of usefulness of method that is used to make water ballast according to present embodiment.Seawater also contains 0.05% to 1.0% oil content usually except that microorganism as used herein, and has 1 to 100NTUs turbidity, but also is not necessarily limited to such seawater.In the microorganism in living in seawater, coliform bacteria, vibrio cholerae, enterococcus bacteria, zoea, North Pacific starfish larva, Asia kelp larva, zebra mussel larva, poisonous sea grass etc. especially are considered to be subjected to the microorganism of international concern.Most of these microorganisms have several microns size, and those microorganisms of minimum size only have the size of 0.3 to 0.5 μ m.
The step that is used for making the removal microorganism that the method for water ballast carries out according to present embodiment is by making seawater remove the step of living in the microorganism in the seawater by the microbe filter film.The microbe filter film comprises micro-filtration (MF) film as used herein, ultrafiltration (UF) film etc., and such as hollow-fiber film, planar film, tubular film etc.In these films, hollow-fiber film is preferable, because it can provide the filtration area of per unit volume maximum.
Hollow-fiber film uses the Multihollow fiber be arranged in parallel, and has hollow structure, wherein, is connected with the hole that forms hollow structure, also is formed on the film surface many micropores that hole therewith is communicated with.As hollow-fiber film, two kinds of External Pressure Type and interior die moulds are arranged.In the present embodiment, when microfiltration membrane was used as the microbe filter film, the micropore in the hollow-fiber film had the diameter of 0.01 to 0.4 μ m, and preferably has the diameter of 0.01 to 0.3 μ m.When using ultra-filtration membrane, the micropore in the hollow-fiber film has the diameter of 0.002 to 0.01 μ m.Such as bacterium, the size that larva etc. live in the microorganism in the seawater is about several microns the order of magnitude usually, and those microorganisms of minimum size have the size of 0.3 to 0.5 μ m.So, have the hollow-fiber film of the micropore of diameter as mentioned above by use, these bacteriums, larva, and other microorganisms that live in the seawater can almost entirely be removed.Thereby be attached to the lip-deep microorganism of film and recover its filtration capacity with removal although also carry out backwash, it is preferable using the External Pressure Type hollow-fiber film, because except such backwash, bubble is formed during filtering to discharge and to remove the operation that is attached to the lip-deep microorganism of film can carry out outside the film surface.
In addition, hollow-fiber film can use with the form of immersion type hollow fiber film device or compression type hollow fiber film device.Immersion type hollow fiber film device is used for removing method of microorganism by the suction that uses hole one side of suction pump in the hollow fiber of this device that immerses sea water tank to apply from seawater.Compression type hollow fiber film device is used for by using topping-up pump that seawater is provided to the inner hollow fiber that loads of pressurized vessel and removes method of microorganism from seawater.Immersion type hollow fiber film device and compression type hollow fiber film device can both filter continuously, simultaneously as described above by on demand from hollow-fiber film produce microbubble down so that be attached to that microorganism on the hollow-fiber film the discharges surface of cleaning film simultaneously.
The starting material of the microfiltration membrane of using in the present embodiment comprise polyethylene, polypropylene, polysulfones, polyvinylidene dichloride, poly(vinylidene fluoride), polyvinyl chloride, polychloroprene, polyacrylonitrile, cellulose acetate etc.
Although seawater is not particularly limited by the method for microbe filter film, the microbe filter film device that two or more comprise the microbe filter film can be set with being arranged in parallel.In the case, when a microbe filter film device was in backwash step, another microbe filter film device can be removed the step of microorganism, so can make a large amount of membrane filtration water continuously.
The step of the backwash of carrying out in the water ballast manufacture method is the step by backwash cleaning microbe filter film.In the step of removing microorganism, the material passing in time that microorganism or other cause film to block is attached on the microbe filter film, causes the increase of the mould difference between film import and the outlet.Therefore, stop the filtration of seawater to pass through to utilize membrane filtration water backwash microbe filter film as rinse water.Recover the filtering function of microbe filter film by the step of carrying out backwash.After finishing the step of backwash, flow process rotates back into the step of removing microorganism, and these steps repeat filtration can be carried out for a long time.
In the method according to the manufacturing water ballast of present embodiment, removing oil content in advance from seawater before by the processing of microbe filter film is preferable with regard to the obstruction that prevents the microbe filter film, and can prevent that filtering function from degenerating.More particularly, although the oil content in the seawater is also captured by the microbe filter film, form contrast with microorganism and other suspended substances, being attached to the lip-deep oil content of film can not easily remove by above-mentioned bubble or in backwash step.Such oil content blocks the microbe filter film, and causes filtering function to be degenerated.
Be used for being not particularly limited, and can use known oily-water seperating equipment (oil content removal device) from the method for seawater removal oil content.As oily-water seperating equipment, the device that uses hydrophobic absorption agent is preferable, because it is a kind of easy method and represents the high ability that absorbs oil content.As hydrophobic absorption agent, can use nonwoven fabric filter, powder and by such as polyethylene, the hollow-fiber film that the lipophilic material of polypropylene etc. is made.More particularly, use oil content absorption agent " DIAMARS " (registered trademark) can remove oil content expeditiously.Have for example seawater of 0.05% to 1.0% oil content by the step process of removing oil content from seawater, can obtain to have the seawater of 0.005% to 0.02% oil content.
Removing oil content from seawater is necessary with regard to the pollution that prevents the microbe filter film, and in order to reduce the load of the removal microorganism that is added on the microbe filter film, it is preferable removing suspended substance in advance from seawater.Be used for being not particularly limited, and can use known separator for removing dirt from the method for seawater removal suspended substance.This separator for removing dirt comprises sand filtering device, has the device of the non-woven fibre strainer of being made by polyethylene or polypropylene, has to allow the separator for removing dirt etc. that suspended substance is absorbed into the macrofiber bundle of the trevira bundle that is contained in the sand filtration case.It is preferable using oil content absorption agent " DIAMARS " (registered trademark), because can remove oil content and suspended substance effectively.
When carry out on the ground according to present embodiment be used to make the method for ship ballast water the time, the membrane filtration water that obtains by the step of removing microorganism can be stored in the ballast tank, and can water ballast be provided to the boats and ships that rest on the harbour from ballast tank with high flow rate.Prolong the stay of ship time so it be not necessary for the introducing water ballast.In addition, when in boats and ships, carry out according to present embodiment be used to make the method for ship ballast water the time, be installed in ground equipment, installing space, and surfaceman's work all become unnecessary.When making water ballast in boats and ships, water ballast is made when boats and ships cast anchor usually, and the water ballast of therefrom removing microorganism is provided to the ballasting water tank that is arranged on boats and ships inside, reaches predetermined amount until the ballasting water yield that is provided.
Ballast water producing apparatus according to present embodiment can be installed on the ground, maybe can install aboard ship.The ballast water producing apparatus that is installed in ground type comprises and is used for providing the seawater or the seawater generator of the seawater of the port area of stay of ship for example; Be used for removing the microbe filter film device of microorganism from the seawater that is provided; Be used for providing the backwash water generator of backwash water to the microbe filter film device, and the ballast tank that is used to store membrane filtration water.The preferable upstream that is ballast water producing apparatus also is included in the microbe filter film device is used for removing from seawater the oil content removal device of oil content.In addition, separator for removing dirt can be arranged at the downstream of oil content removal device as required.The seawater generator is that seawater is provided to the device of microbe filter film device, and comprises that sea-water pump and seawater water inlet pipe, an end of seawater water inlet pipe have and be positioned at marine opening, and the other end is connected to sea-water pump.The water tank number of ballast tank to being equipped with, water tank type etc. has no particular limits.Comprise the liquid supply pump that for example is used for from ballast tank suction water ballast with the equipment that uses according to being connected of present embodiment with producing apparatus, and the feed tube for liquid between the ballasting water tank that is used for being connected the liquid supply pump and being arranged at mooring steamer.
The ballast water producing apparatus of boats and ships mount type can have and the similar structure of the ballast water producing apparatus of above-mentioned ground surface installation type, exception be the setting that can omit ballast tank.An example of the ballast water producing apparatus of installing on the ship is with reference to schematic view illustrating shown in Figure 1.Ballast water producing apparatus 1 comprises the sea water supply pump 13 that is provided with from the upstream side order, oily-water seperating equipment (oil content removal device) 2, hollow fiber membranous type microbe filter device 3 and backwash water tank 14.The one end is positioned at the suction side that marine sea intake pipe 131 is arranged on sea water supply pump 13.Connect hollow fiber membranous type microbe filter device 3 and backwash water tank 14 by purifying treatment water pipe 7, and connect backwash water tank 14 and ballasting water tank 15 by purifying treatment water pipe 7a.In addition, set backwash water pump 9 can transmit with the above-mentioned microfiltration membrane of backwash the filtered water that is stored in the backwash water tank 14 by backwash water pipe 10.Abandoned into marine from the strong solution (not shown) that hollow fiber membranous type microbe filter device 3 gives off, or be discharged on the ground.Oily-water seperating equipment 2 can be removed.In addition, separator for removing dirt can be arranged at oily-water seperating equipment 2 downstreams as required.In addition, sea water supply pump 13 can be omitted, and the water ballast supply pump (not shown) that the seawater that attaches to hull 16 provides mouth that has that has been provided with can be used with sea intake pipe 131.In this case, because if oily-water seperating equipment 2, hollow fiber membranous type microbe filter device 3, it is just enough that backwash water tank 14 grades are arranged on the downstream of the water ballast supply pump that has been provided with, and then is built into instinct and reduces.If boats and ships are equipped with the ballasting water tank, then the boats and ships that ballast water producing apparatus 1 will be installed on it are not particularly limited.
According to present embodiment, will can remove effectively by the microbe filter film as the microorganism in the seawater of water ballast because live in, the water ballast of emitting from boats and ships can not bring the microorganism that does not originally live in the specified sea areas, and can not cause the destruction to ocean environment.In addition, for example,, water can be introduced boats and ships in case of necessity to be used as water ballast by membrane filtration water is stored in the ballast tank.In addition, when in boats and ships, carrying out above-mentioned steps, be installed in ground equipment, installing space, and surfaceman's work become unnecessary.In addition, even seawater contains higher relatively oil content, because before handling seawater, remove oil content in advance by the microbe filter film, thus can the contaminating microorganisms filtering membrane, and can carry out long-time stable treated.
Example
Secondly, illustrate in greater detail the present invention with reference to following example.Yet these examples only provide in the mode of illustrative example, and are not intended to limit the scope of the invention.
Example 1
Seawater (hereinafter referred to as " not purifying sea water ") in the stay of ship state inner harbor area " A " wherein is by utilizing ballast water producing apparatus as described below, and handles under operational condition as described below.The coliform bacteria in purifying sea water and the treated water (membrane filtration water) is not measured by following measuring method.It should be noted that purifying sea water does not have the 8mg/L oil content of n-hexane extract form, and have the turbidity of 5NTUs.
(ballast water producing apparatus)
This example uses equipment as shown in Figure 2.Employed ballast water producing apparatus 20 has the hollow fiber membranous type microbe filter device 3 as major portion, wherein by having per hour 3m
3" STERAPORESUR31534 " that the microfiltration membrane of processing power is made (the beautiful sun of Mitsubishi is made) hollow-fiber film module 5 is dipped in the treatment chamber 4.Connect hollow fiber membranous type microbe filter device 3 and purifying treatment water tank 6 by purifying treatment water pipe 7, and purifying treatment water pipe 7 is equipped with lift pump 8.The filtered water that is stored in the purifying treatment water tank 6 backwash water pump 9 is set in addition so that can be transmitted with the above-mentioned microfiltration membrane of backwash by backwash water pipe 10.
(working method)
Purifying sea water is not with 3m per hour
3Treatment rate provide to ballast water producing apparatus 20.In removing the step of microorganism, carrying out the filtering air that provides from the blower 11 water injection allocator 12 generation microbubbles from being arranged on hollow-fiber film module 5 below that make simultaneously so that be attached to the lip-deep microorganism of hollow-fiber film etc. and be released.Remove the step of microorganism and carry out 15 minutes, and the step of backwash was carried out 1 minute, and repeat these steps like this.The waste liquid that microorganism concentrates on wherein discharges in right amount from treatment chamber 4 bottoms of hollow fiber membranous type microbe filter device 3.
(microorganism measuring method)
After 35 ℃ are cultivated 24 hours down, measure coliform bacteria at the sample that is added to BGLB liquid nutrient medium (bright green lactose bile broth).
(result)
Although among the every 100mL of coliform bacteria number not in the purifying sea water is 35, and does not detect coliform bacteria in purifying treatment water.In addition, do not detect n-hexane extract in the purifying treatment water, and turbidity is not more than 2NTUs.It should be noted that though the pressure reduction of measuring immediately after the initial stage of filter operation is carried out backwash is 0.05MPa, then carrying out backwash after 170 hours the filter operation, the pressure reduction of measuring immediately after the backwash is 0.45MPa.
Example 2
With with example 1 in the same mode carry out example 2, exception be by utilizing ballast water producing apparatus as described below, and under operational condition as described below, handle not purifying sea water.
(ballast water producing apparatus)
This example uses equipment as shown in Figure 3.Ballast water producing apparatus 30 comprises the per hour 3m that has from the setting of upstream side order
3" the DIAMARS RH-03 " of processing power (the beautiful positive engineering manufacturing of Mitsubishi) oily-water seperating equipment 2, hollow fiber membranous type microbe filter device 3 and purifying treatment water tank 6.In employed hollow fiber membranous type microbe filter device 3, by having per hour 3m
3" the STERAPORE SUR31534 " that the microfiltration membrane of processing power is made (the beautiful sun of Mitsubishi is made) hollow-fiber film module 5 is dipped into treatment chamber 4.Connect hollow fiber membranous type microbe filter device 3 and purifying treatment water tank 6 by purifying treatment water pipe 7, and purifying treatment water pipe 7 is equipped with lift pump 8.The filtered water that is stored in the purifying treatment water tank 6 backwash water pump 9 is set in addition so that can be transmitted with the above-mentioned microfiltration membrane of backwash by backwash water pipe 10.
(working method)
Purifying sea water is not with 3m per hour
3Treatment rate provide to ballast water producing apparatus 30.In the step of removing microorganism, continuing to carry out filteringly to make the water injection allocator 12 of air below being arranged on hollow-fiber film module 5 that provides from blower 11 produce microbubbles simultaneously, thereby upgrading the surface of this film so that be attached to the lip-deep microorganism of hollow-fiber film etc. and be released.Remove the step of microorganism and carry out 15 minutes, and the step of backwash was carried out 1 minute, and repeat these steps like this.The waste liquid that microorganism concentrates on wherein discharges in right amount from treatment chamber 4 bottoms of hollow fiber membranous type microbe filter device 3.
(result)
Although among the every 100mL of coliform bacteria number not in the purifying sea water is 35, and does not detect coliform bacteria in purifying treatment water.In addition, do not detect n-hexane extract in the purifying treatment water, and turbidity is not more than 2NTUs.It should be noted that the pressure reduction of measuring immediately is 0.05MPa after the filter operation initial stage is carried out backwash, and then carrying out backwash after 170 hours the filter operation, the pressure reduction of measuring immediately after the backwash also is 0.05MPa.Like this, by via oily-water seperating equipment never purifying sea water remove oil content in advance, can prevent effectively because the pollution that causes of oil content microfiltration membrane.
Example 3
Replace immersion type hollow fiber membranous type microbe filter device 3, use compression type hollow fiber membranous type microbe filter device (not shown), and with and example 1 in the same mode carry out air filled cavity and wash step with the periodicity backwash.For the hollow-fiber film module that is used for compression type hollow fiber membranous type microbe filter device, use three and have per hour 3m
3" the STERAPORE G type UMF-2024WFA " of processing power (the beautiful sun of Mitsubishi is made) microfiltration membrane.
(result)
Although among the every 100mL of coliform bacteria number not in the purifying sea water is 35, and does not detect coliform bacteria in purifying treatment water.In addition, do not detect n-hexane extract in the purifying treatment water, and turbidity is not more than 2NTUs.It should be noted that the microfiltration membrane pressure difference data is similar to the data of example 2.
Shown in example, by handled not purifying sea water by ballast water producing apparatus, the coliform bacteria in the purifying sea water is not removed to the degree that detection does not go out coliform bacteria.In addition, by oily-water seperating equipment being set, can prevent effectively because the pollution that oil content causes to microfiltration membrane at hollow fiber membranous type microbe filter device upstream.
Claims (9)
1. a method that is used to make ship ballast water is characterized in that, this method comprises the following steps:
From seawater, remove microorganism by making seawater pass through the microbe filter film; With
The described microbe filter film of backwash is so that its cleaning.
2. the method that is used to make ship ballast water as claimed in claim 1 is characterized in that, removes the oil content in the seawater before handling seawater by described microbe filter film at least in advance.
3. the method that is used to make ship ballast water as claimed in claim 1 or 2 is characterized in that, described microbe filter film is a hollow-fiber film.
4. as claim 2 or the 3 described methods that are used to make ship ballast water, it is characterized in that, by remove the oil content in the seawater with hydrophobic absorption agent absorption.
5. a ship ballast water producing apparatus is characterized in that, this equipment comprises:
Be used to provide the seawater generator of seawater;
Be used for removing the microbe filter film device of microorganism from the seawater that is provided; With
Be used for providing the backwash water generator of backwash water to described microbe filter film device.
6. ship ballast water producing apparatus as claimed in claim 5 is characterized in that this equipment also comprises the ballast tank that is used to store membrane filtration water.
7. as claim 5 or 6 described ship ballast water producing apparatus, it is characterized in that, be used for being arranged on the upstream of described microbe filter film device from the oil content removal device that seawater is removed oil content at least.
8. as any one the described ship ballast water producing apparatus in the claim 5 to 7, it is characterized in that described microbe filter film device is immersion type hollow fiber film device or compression type hollow fiber film device.
9. the using method as the membrane filtration water of ship ballast water is characterized in that, described membrane filtration water is by obtaining in the step as the removal microorganism of the described method that is used for making ship ballast water of claim 1 to 4.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP095980/2004 | 2004-03-29 | ||
| JP2004095980 | 2004-03-29 | ||
| JP261854/2004 | 2004-09-09 |
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| Publication Number | Publication Date |
|---|---|
| CN1938229A true CN1938229A (en) | 2007-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200580010233 Pending CN1938229A (en) | 2004-03-29 | 2005-03-29 | Process for producing ship ballast water, ship ballast water producing apparatus and use thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336479A (en) * | 2010-07-16 | 2012-02-01 | 财团法人精密机械研究发展中心 | Ballast water introduction method and its system |
| CN102781538A (en) * | 2010-03-02 | 2012-11-14 | 杰富意工程株式会社 | Filtration apparatus and ballast water treatment apparatus |
| CN107686185A (en) * | 2016-08-03 | 2018-02-13 | 三泰（青岛）膜科技有限公司 | Ship ballast water processing method and equipment |
-
2005
- 2005-03-29 CN CN 200580010233 patent/CN1938229A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102781538A (en) * | 2010-03-02 | 2012-11-14 | 杰富意工程株式会社 | Filtration apparatus and ballast water treatment apparatus |
| CN102781538B (en) * | 2010-03-02 | 2014-10-08 | 杰富意工程株式会社 | Filtration apparatus and ballast water treatment apparatus |
| CN102336479A (en) * | 2010-07-16 | 2012-02-01 | 财团法人精密机械研究发展中心 | Ballast water introduction method and its system |
| CN107686185A (en) * | 2016-08-03 | 2018-02-13 | 三泰（青岛）膜科技有限公司 | Ship ballast water processing method and equipment |
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