CN101855178B - Ballast water treatment system - Google Patents
Ballast water treatment system Download PDFInfo
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- CN101855178B CN101855178B CN200880115312XA CN200880115312A CN101855178B CN 101855178 B CN101855178 B CN 101855178B CN 200880115312X A CN200880115312X A CN 200880115312XA CN 200880115312 A CN200880115312 A CN 200880115312A CN 101855178 B CN101855178 B CN 101855178B
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J4/00—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for
- B63J4/002—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for for treating ballast water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J4/00—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for
- B63J4/004—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for for treating sludge, e.g. tank washing sludge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/30—Control equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/008—Originating from marine vessels, ships and boats, e.g. bilge water or ballast water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/11—Turbidity
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Physical Water Treatments (AREA)
Abstract
According to a ballast water treatment system in one embodiment of the present invention, the quality of a ballast water is monitored, and the operating conditions of a water treatment apparatus are controlled based on the results of the monitoring. By virtue of the above constitution, even when the quality of the ballast water significantly varies depending upon water intake conditions, the ballast water can be treated to always have a constant quality. Further, since water treatment is carried out according to the quality of the ballast water, excess injection of a liquid chemical used in the water treatment and a lack in the amount of the liquid chemical injected can be prevented. For example, when a water treatment apparatus of a sterilization system is used, excess injection of a sterilizing agent and a lack in the amount of the sterilizing agent injected can be prevented, and thus, the application of a load by the sterilizing agent on a coating in the ballast tank and an environment can be prevented.
Description
Technical field
The present invention relates to ballast water treatment system, relate to especially for removing hydrobiological ballast water treatment system from ballast water for ship.
Background technology
Thereby the ship's gear of transportation ore, former wet goods have ballast box in ballast box, store water ballast such as seawater and fresh water with navigate by water attitude control and keep the stability of hull.Because water ballast is loaded in the ballast box when vessel unloading, and discharges from ballast box when goods loads, it will be discharged from the zone different from the water inlet position.Therefore, hydrobiont may move and lives in peace at new environment with water ballast, and in such circumstances, they can bring the ecosystem destroyed and affect the problem of business activity such as water industry.And people also worry can directly affect human health with the pathogenic bacteria of water ballast migration.
So in the international conference about the ballast for cruising water management, " being used for control and management ballast water for ship and sedimental international agreement " (" The International Convention for the Controland Management of Ships ' Ballast; Sediments ") adopted in February, 2004, and require the essential ballast water treatment plant of installing of boats and ships.The below is the Ballast Management standard of (IMO) being formulated by international ocean shipping tissue (InternationalMaritime Organization).
* for the organism of minimum size more than or equal to 50 microns, every cubic metre of organism that is less than 10 survivals.
* be less than 50 microns but more than or equal to 10 microns organism, every milliliter of organism that is less than 10 survivals for minimum size.
* produce per 100 milliliters of malicious vibrio cholerae (Vibrio cholerae) (O-1 and O-139) and be less than 1 colony-forming unit (cfu).
* per 100 milliliters of colon bacillus (Escherichia coli) is less than 250cfu.
* per 100 milliliters of faecalis (Enterococci) is less than 100cfu in the intestines.
In order to satisfy these standards, proposed the ballast water treatment technology of various purifying water ballasts.For example, conventionally, the sterilization scheme is main flow, wherein carries out coarse filtration by filter (physical treatment), adds subsequently sterilizing agent; In patent documentation 1, come water ballast is carried out sterilization by the chemical that adds based on chlorine.In addition, patent documentation 2 usefulness hydrogen peroxide come water ballast is carried out sterilization, and patent documentation 3 usefulness ozone come water ballast is carried out sterilization.
In recent years, replace the sterilization scheme, also proposed to condense/separation scheme.For example, in patent documentation 4, chemical and magnetic powder are added water ballast to hold as the hydrobiont of removing object, form thus the magnetic throw out, and these magnetic throw outs separate/remove the target hydrobiont thus by reclaiming with magnet and filter.
Patent documentation 3 JP 2006-212494 communiques.
Patent documentation 4 JP 2005-218887 communiques.
Summary of the invention
Technical problem
Water ballast is got at arbitrary harbour in the world, and its water quality depends on the place of water intaking and obviously different.For example, pollute comparatively serious waters at water, the hydrobiont that exists in the water such as bacterium and planktonic organism are owing to eutrophication increases.And even in identical waters, hydrobiological volume can the considerable change along with season, thereby and convection current etc. the change of hydrobiont volume can occur to cause at short notice owing to day and night temperature.Reason for this reason, it is very difficult satisfying the Ballast Management standard of being set by IMO constantly, and attempts satisfying described standard in unsuitable mode and may cause new disadvantageous effect.
For example, in patent documentation 1-3, in order to reach reliably described standard, must inject excessive sterilizing agent, and as the result who injects excess chemicals liquid, have such risk, be that its effect keeps always, adversely affect thus the shell of ballast box, and when water ballast is discharged from, kill the hydrobiont in this waters.
In addition, in order to satisfy reliably the standard in the patent documentation 4, must add excessive chemical to form the magnetic throw out, it may cause such risk, namely owing to inject such excess chemicals, unnecessarily increases the amount of the magnetic throw out that is recovered.
Based on the problems referred to above, carry out the present invention, and the purpose of this invention is to provide a kind of ballast water treatment system, it can satisfy the Ballast Management standard of being set by IMO constantly.
Technical scheme
To achieve these goals, first aspect of the present invention provides a kind of ballast water treatment system, it comprises the water treatment device of removing material to be removed from water ballast, with the ballast box that stores the water ballast of being processed by the described water treatment device that is installed on the boats and ships, described ballast water treatment system is characterised in that and comprises: the monitoring device of monitoring water ballast water quality; With the control device of controlling the operational condition of water treatment device based on the monitoring result of described monitoring device.
Because thereby a first aspect of the present invention is set up the water quality of monitoring water ballast, and the operational condition based on this output control water treatment device, therefore can processing ballast so that it has constant water quality, even also can be like this when the water quality of water ballast significantly changes with the water intaking condition.
And according to first aspect, owing to carry out water treatment according to the water quality of water ballast, it is excessive or not enough therefore can to prevent for the injection of the chemical liquid of water treatment.For example, when taking the sterilization scheme for water treatment device, can prevent that the injection of sterilizing agent is excessive or not enough, prevent that thus described sterilizing agent from producing burden to shell and the environment of ballast box.
A second aspect of the present invention is characterised in that in first aspect, described water treatment device comprises: coagulation units, and described coagulation units condenses material to be removed by injecting condensing agent to water ballast and stirring described water ballast; With separate/removal device, described separation/removal device separates also removes the aggregation that exists in described coagulation units.
Second aspect is based on condensing/separation scheme, and it condenses material to be removed in the water ballast, makes thus that it is separated/remove, and the needs of the injection sterilizing agent as the sterilization scheme not wherein, has eliminated thus the burden to shell and the environment of ballast box.Notice that separation/removal device can utilize gravity settling, flocculation, magneticseparation, filtering separation etc.
The 3rd aspect of the present invention be characterised in that, aspect second in, thereby control device is controlled the injection rate that coagulation units is regulated described condensing agent based on the monitoring result of monitoring device.
According to the third aspect, because control the injection rate of condensing agent according to the water quality of water ballast, so can inject the only condensing agent of capacity.Therefore, can prevent that the condensing agent that causes owing to excessive injection condensing agent is residual, and when discharging water ballast, the burden of environment be minimized.
Fourth aspect present invention is characterised in that, second or the third aspect in, described separation/removal device is set to the combination of magneticseparation and filtering separation.
According to fourth aspect, because made up magneticseparation and filtering separation, can come the separation/recovery aggregation with high speed and pinpoint accuracy.Note in fourth aspect,, preferably before condensing, the magnetic powder is mixed in the water ballast.And magneticseparation is preferably undertaken by use magnet such as permanent magnet, superconducting magnet etc., and filtering separation is preferably undertaken by the filter that uses the 10-15 μ m that is made by metal or resin.
A fifth aspect of the present invention is characterised in that, first in any of fourth aspect, monitoring device by measuring water ballast turbidity and at least one of colourity monitor water ballast.
According to the 5th aspect, because monitoring is to be undertaken by at least one that measure turbidity and colourity, therefore can indirectly obtain the guestimate of hydrobiont concentration in the water ballast.And, developed the device of many many purposes about turbidometer and colorimeter.
A sixth aspect of the present invention is characterised in that, first in each of fourth aspect, described monitoring device is monitored water ballast by the image analysis of carrying out water ballast.
According to the 6th aspect, because the water quality of water ballast is monitored by the image analysis of carrying out water ballast, therefore can directly determine hydrobiological concentration in the water ballast.
A seventh aspect of the present invention is characterised in that in any aspect first to the 6th, described control device control time per unit is by the processing volume of water treatment device processing.
According to the 7th aspect, owing to controlled the processing volume of the time per unit in the water treatment device, i.e. residence time, even when material to be removed is present in the water ballast in a large number, still can effectively remove material to be removed.For example, when the water treatment device that uses based on the sterilization scheme, can control duration of contact with sterilizing agent by the processing volume of control time per unit.Even when having the inflow of the high-concentration biological that is caused by red tide etc., also can effectively carry out germicidal treatment therefore.And, when use based on condense/during the water treatment device of separation scheme, can be controlled at by the treatment capacity of control time per unit the residence time in the coagulation units.Therefore, even when existing owing to during the inflow of the high-concentration biological that red tide causes, also can carry out reliably hydrobiological coagulation treatment.
A eighth aspect of the present invention is characterised in that, in each aspect first to the 7th, described monitoring device is in the inlet part of described water treatment device, the exit portion of described water treatment device, and/or in ballast box the water quality of monitoring water ballast.
According to eight aspect, by the water quality at the inlet part of water treatment device monitoring water ballast, water treatment is carried out in the variation of water ballast water quality in the time of can be according to water inlet.And, can process by the water quality of monitoring water ballast in the exit portion of water treatment device the variation (reduction of performance etc.) of described water treatment device performance.In addition, can process the situation that wherein water quality reduces in case by the water quality of the water ballast in the monitoring case.
A ninth aspect of the present invention is characterised in that, first in any of eight aspect, described ballast water treatment system comprises that the water ballast in the described ballast box maybe will be discharged to outside water ballast from described ballast box be back to pipeline in the described water treatment device, and water ballast is processed again by water treatment device.
According to the 9th aspect, processing ballast again, and when for example when in water inlet, in water ballast, comprising material to be removed in a large number, when material to be removed can not fully be removed by water treatment, maybe when material to be removed is grown in case, described water ballast is processed again.As a result, can discharge water ballast with the state that reliably satisfies described standard.The again processing of noting water ballast preferably is and carries out when water ballast is discharged from ship's navigation.
The invention effect
According to the present invention, because the water quality of monitoring water ballast, and based on the operational condition of this output control water treatment device, thereby the water ballast that can process the noticeable change with flow condition makes it have the water quality that needs.Therefore, can satisfy reliably about the standard of discharging water ballast and prevent thus because the destruction of the ecosystem that the discharge water ballast causes.
The accompanying drawing summary
Fig. 1 shows first embodiment of the ballast water treatment system that the present invention relates to.
Fig. 2 shows the ballast water treatment system different from Fig. 1.
Fig. 3 shows that the water in the ballast water treatment system of Fig. 1 discharges flow process.
Fig. 4 shows second embodiment of the ballast water treatment system that the present invention relates to.
Fig. 5 shows the ballast water treatment system different from Fig. 4.
Fig. 6 shows that the water in the ballast water treatment system of Fig. 4 discharges flow process.
Fig. 7 shows the hydrobiont concentration of water ballast and the form of the relation between the chemical liquid bulk concentration.
Fig. 8 is the form that shows the relation between the add-on of the turbidity of water ballast and condensing agent.
Symbolic interpretation
10... ballast water treatment system, 12... boats and ships, 14... water treatment device, 16... ballast box, 18... monitoring device, 20... control device, 22... the physical removal device, 24... sterilizing unit, 26... raw water pipeline, 28... pump, 30... valve, the waterpipe that 32... processes, 34-38... sampling line, 40... ballast water treatment system, 42... circulation line, 44... circulation line, 46... bypass conduit, 50... ballast water treatment system, the 52... water treatment device, the 54... chemical adds parts, the parts 56... condense, 58... separating component, 60... magnetic powder adding set, 62... inorganic coagulant adding set, 64... polymer coagulant adding set, 66... the high speed agitator bath, 68... low speed agitator bath, 70... pipeline, 72... magnetic separation device, 74... filtering separation device, 80... ballast water treatment system, 82... circulation line
Implement best mode of the present invention
Below, the preferred embodiment of the ballast water treatment system that the present invention relates to is described with reference to the accompanying drawings.
Fig. 1 schematically shows the structure of the first embodiment of the ballast water treatment system that the present invention relates to.The ballast water treatment system 10 that shows in the figure is installed in the boats and ships 12 and mainly by water treatment device 14, ballast box 16, and monitoring device 18, and control device 20 consists of.
The solids of the large-scale hydrobiont of physical removal device 22 physical removal and suspension etc. are used alone or in combination for this reason and utilize for example filter, cyclonic separator, empty formation effect and other device.Raw water pipeline 26 is connected with physical removal device 22, and pump 28 and valve 30 are installed in the raw water pipeline 26.Along with pump 28 is driven, seawater or fresh water are inhaled into raw water pipeline 26 and enter physical removal device 22.Pump 28 is connected with valve and is connected with control device 20, and comes the speed of rotation of control pump 28 and opening of valve 30 by control device 20.Be noted that the design of depending on sterilizing unit 24 in the later stage, can use the embodiment that physical removal device 22 wherein is not installed.In addition, replace and use pump 28, can utilize waterhead to carry seawater or fresh water.
The water of the processing that wherein hydrobiont is removed by physical removal device 22 and sterilizing unit 24 is sent into ballast box 16 and is stored in the ballast box 16.Note, as the water ballast in the ballast box 16 being discharged to outside water discharge tool, by using the embodiment of raw water pipeline 26 and pump 28 drainage waters, and be feasible by new water discharge pipe road (not shown) being connected in the embodiment that ballast box 16 comes drainage water.
Next, with the operation of describing such as the ballast water treatment system 10 of above-mentioned structure.
In embodiments of the invention, raw water pipeline 26, the waterpipe 32 of processing and the water ballast in the ballast box 16 are taken a sample.That is the water quality of the water ballast after, water quality, the water treatment device 14 of the water ballast in when water inlet monitoring have just been processed and be stored in the water quality of the water ballast in the ballast box 16.Then, control device 20 carries out ballast water treatment thus according to the operational condition of described water quality control water treatment device 14.
For example, when the water ballast of raw water pipeline 26 (namely, when the deteriorating water quality water ballast when water inlet) causes hydrobiont concentration to increase, increase the processing power of water treatment device 14, as by increasing the amount that will be input to the sterilizing agent in the sterilizing unit 24 and the processing flow velocity that reduces pump 28 and/or valve 30 increases.On the contrary, when the water correction of water ballast causes hydrobiological concentration to reduce when in water inlet, reduce the processing power of water treatment device 14, as by reducing the amount that will be input to the sterilizing agent in the sterilizing unit 24 and the processing flow velocity that improves pump 28 and/or valve 30 reduces.This can process with the change of water quality of the former water of water ballast, thus the water quality of the water ballast after the stabilizing treatment.And the operational condition by according to the water quality control water treatment device 14 of the former water of water ballast can prevent sterilizing agent from sterilizing unit 24 excessive injections, prevents that thus when discharging water ballast, too much sterilizing agent adversely affects the ecosystem of part.
Similarly, can process such situation, the water ballast of the waterpipe 32 of wherein processing (that is, the water ballast after the just processing) change of water quality.That is, when hydrobiont concentration increases, increase the processing power of water treatment device 14, as by increasing the amount that will be input to the sterilizing agent in the sterilizing unit 24 and the processing flow velocity that reduces pump 28 and valve 30 increases.On the contrary, when hydrobiological concentration reduces, reduce the processing power of water treatment device 14, as by reducing the amount that will be input to the sterilizing agent in the sterilizing unit 24 and the processing flow velocity that improves pump 28 and valve 30 reduces.This can carry out the feedback control of water treatment device 14, thus the water ballast water quality after the stabilizing treatment.Be noted that the water quality of water ballast of the waterpipe 32 of the water quality of water ballast of comparison raw water pipeline 26 and processing can be rapider and accurately process with the change of water quality of the former water of water ballast, thus the water quality of the water ballast further after the stabilizing treatment.
The water quality of in embodiments of the invention, also monitoring the water ballast in the ballast box 16 is allowed the water quality of supervising the water ballast in the ballast box thus.Note when the deteriorating water quality in the ballast box, it can be processed by following method: the method that wherein circulation of the water ballast in the ballast box is entered water treatment device 14 and again processes, wherein when the water ballast in the ballast box is discharged from, described water ballast enters water treatment device 14 and is again processed the method for discharging, or wherein thereby sterilizing unit 24 is connected in ballast box and makes the inside of ballast box by the further method of sterilization, etc.
Therefore, according to embodiment of the present invention, owing to monitored the water quality of water ballast and based on the operational condition of its output control water treatment device 14, therefore even when the water quality of water ballast significantly do not keep simultaneously constant water ballast water quality with flow condition always yet.
In addition, according to embodiment of the present invention, because water treatment is carried out according to the water quality of water ballast, therefore can inject an amount of chemical liquid according to hydrobiological concentration.At this, the relation between hydrobiological concentration and the every kind of sterilizing agent is presented in the form of Fig. 7.In embodiments of the invention, can inject an amount of chemical liquid based on above-mentioned relation, allow that thus the injection that prevents chemical liquid is excessive or not enough.Thus, can prevent that remaining chemical liquid from producing burden to the shell of ballast box 16 and the ecosystem of water discharging area.
Be noted that, in the form of Fig. 7, standard for hydrobiont A is " for the organism of minimum size more than or equal to 50 microns; every cubic metre of organism that is less than 10 survivals ", and the standard for hydrobiont B be " for minimum size be less than 50 microns but more than or equal to 10 microns organism, every milliliter of organism that is less than 10 survivals ".
Be noted that, although in the above-described embodiment, at three places (raw water pipeline 26, the waterpipe 32 of processing, with ballast box 16) monitoring water ballast water quality, location and the quantity of point to be monitored are not limited to these, and for example, can take a sample to the water quality of water ballast at a place or two places of above-mentioned position.
Fig. 2 is the synoptic diagram of such system, wherein the ballast water treatment system of Fig. 1 is provided in the ballast box 16 the again function of processing ballast.Make circulation line 42 be connected in ballast box 16 thereby the ballast water treatment system 40 that shows in the figure constructed, and the front end of circulation line 42 is connected in raw water pipeline 26.Be circulation line 42 equipment pumps and valve (all showing), and described pump and valve are by control device 20 controls.Be noted that the front end of circulation line 42 can be connected in the pipeline in pump 28 upstream sides (left side of Fig. 2), thereby pump 28 and valve 30 are used for water inlet and circulation time.
As in the ballast water treatment system 40 of above-mentioned structure, monitor the water quality of the water ballast in the ballast box 16 and based on this monitoring result, control the operational condition of water treatment device 14.For example, when the deteriorating water quality of the water ballast in the ballast box 16, the water ballast in the ballast box 16 is recycled in the water treatment device 14 by circulation line 42 and carries out the again processing of water ballast.Then, according to the water quality of the water ballast in the ballast box 16, thereby the again processing that the operational condition of control water treatment device 14 is carried out water ballast is less than or equal to permissible value until hydrobiological concentration becomes.This can improve the water quality of the water ballast in the ballast box 16 and can keep it to be less than or equal to permissible value.
Therefore, in embodiments of the invention, can circulate and purifying ballast box 16 in water ballast, and for example can in ship's navigation, carry out the purifying of water ballast.
Note in the above-described embodiment, although the water ballast in the ballast box 16 is returned to the previous stage of physical removal device 22, it can be returned to by sterilizing unit 24 previous stage of sterilization point, shown in the indicated circulation line of Fig. 2 (circulation line) 44.In this case, it is feasible including only again processing of germicidal treatment.
In addition, although in the above-described embodiment, the water quality of the water ballast in the monitoring ballast box 16, and according to its result, the again processing of control water ballast, but structure can be such, and the water-quality ratio of the water ballast after being about to the water quality of the water ballast in the ballast box 16 and just processing is and according to comparative result, the operational condition when control is processed again.For example, structure can be such, when namely the water quality of the water ballast after just processing becomes and is equal to the water quality of the water ballast in the ballast box 16, stops the again processing of water ballast.
Fig. 3 is synoptic diagram, is presented at the flow process of carrying out the water discharge in the ballast water treatment system 10 of Fig. 1.Note, although drainage flow path has in the figure shown by using the water treatment device 14 of Fig. 1, pump 28, the example that valve 30 carries out draining, but the method for draining is not limited to this method, and draining can be undertaken by those water treatment device, pump and the valve when being different from water and injecting is provided.
Ballast water treatment system 10 shown in Fig. 3 is to construct like this, and namely with the pump 28 of the valve 30 of opening and driving, the water ballast in the ballast box 16 is discharged into the outside by water treatment device 14.According to the monitoring result of the water quality of the water ballast in the ballast box 16, control device 20 control water treatment device 14.For example, when the water quality (hydrobiological concentration) of the water ballast in the ballast box 16 surpasses permissible value, drive the again processing of water treatment device 14 initial water ballasts, control the operational condition (processing the injection rate of volume such as sterilizing agent, the processing flow velocity of time per unit) of water treatment device 14 according to the water quality of water ballast.This is less than or equal to permissible value and discharge with water quality and the control water ballast that improves water ballast to be discharged.
Thereby according to an embodiment of the present invention, because structure is such, namely water treatment device 14 is placed on the escape route of water ballast, therefore can carry out the again processing of water ballast when discharging.So, even the water quality of the water ballast in ballast box 16 descends in the navigation process, still might be by when discharging, again processing the discharge standard that described water ballast satisfies water ballast.
Even note in the above-described embodiment, structure is such, namely water ballast also flows to physical removal device 22 when water is discharged, but structure can be such, the bypass conduit 46 of physical removal device 22 namely is provided, thereby drainage water under the condition of not passing physical removal device 22, as shown in Figure 3.
Fig. 4 schematically shows the structure of the ballast water treatment system of the second embodiment.Notice that the member that has identical function with the member of ballast water treatment system shown in Fig. 1 10 is given identical symbol number, has omitted the description to it thus.
As shown in Figure 4, compare with the ballast water treatment system 10 of first embodiment shown in Fig. 1, ballast water treatment system 50 differences of the second embodiment are, have used based on condensing/water treatment device 52 of separation scheme.Based on condensing/water treatment device 52 of separation scheme, it condenses material to be removed in the water ballast (hydrobiont) in order to separate and remove, by the chemical shown in Fig. 4 add parts 54, condense parts 56 and separating component 58 consisted of.
Chemical adds parts 54, it adds for condensing the necessary chemical of material to be removed (hydrobiont) in water ballast, comprise the magnetic powder adding set 60 in the embodiment of the present invention, inorganic coagulant adding set 62, and polymer coagulant adding set 64.Magnetic powder adding set 60 is configured to add the magnetic powder in water ballast, and described water ballast will be fed in the high speed agitator bath 66 of the parts 56 that condense, and for example preferably uses Z 250 (Fe
3O
4) as the magnetic powder.Inorganic coagulant adding set 62 is configured to add inorganic coagulant in water ballast, and described water ballast will be fed in the high speed agitator bath 66 of the parts 56 that condense, and preferably uses poly aluminium chloride, iron(ic) chloride, ferric sulfate etc. as inorganic coagulant.Polymer coagulant adding set 64 is configured to add polymer coagulant in water ballast, described water ballast will be sent to the low speed agitator bath 68 by the high speed agitator bath 66 from the parts 56 that condense, and can preferably use negatively charged ion and nonionic condensing agent etc. as polymer coagulant.The kind of noting chemical to be added is not limited to above-mentioned embodiment, and for example, when equipment for magnetic separation 72 was not used for the separating component 58 of last stages, the embodiment that does not comprise magnetic powder adding set 60 also was feasible.
The parts 56 that condense comprise high speed agitator bath 66, and water ballast is sent to wherein from raw water pipeline 26, and low speed agitator bath 68, and it is connected with high speed agitator bath 66 by pipeline 70.The agitation blades that high speed agitator bath 66 is configured to not show by high speed rotating is stirred water ballast, magnetic powder and condensing agent fast.Agitation blades in high speed agitator bath 66 preferably has about 1-2m/ slewing circle roll surface speed of second at its point, by using such a high speed agitator bath 66, formation has the small magnetic throw out of tens microns sizes, has wherein absorbed solid floating particle in magnetic powder, the water ballast, bacterium, planktonic organism etc.The water ballast that will comprise the magnetic throw out is sent in the low speed agitator bath 68 by pipeline 70.
The agitation blades that low speed agitator bath 68 is configured to not show by low speed rotation is slowly stirred the water ballast that comprises magnetic throw out and polymer coagulant.The agitation blades of control low speed agitator bath 68 is to have the rotation round speed lower than the agitation blades of high speed agitator bath 66.By using this low speed agitator bath 68, the magnetic of might growing throw out, and form and have the hundreds of micron to the large-scale magnetic throw out of several mm in sizes.The water ballast that will comprise the magnetic throw out of growth is sent in the separating component 58.Although note in embodiment of the present invention, the parts 56 that condense are made of high speed agitator bath 66 and low speed agitator bath 68, but the structure of the parts 56 that condense is not limited to this structure, and multiple embodiments, for example, it is feasible wherein providing the embodiment of several steel basins of different agitating methods.
Separating component 58 comprises equipment for magnetic separation 72 and filtering separation device 74.Equipment for magnetic separation 72 is by magnetic-adsorption and separate magnetic throw out in the water ballast, is no less than about 99% magnetic throw out in the former water and is separated by equipment for magnetic separation 72 and remove.The processing water of being processed by equipment for magnetic separation 72 is sent into filtering separation device 74.Filtering separation device 74 utilizes drum filter (the rotating drum filter) (not shown) of the filter with 10-50 μ m aperture, thereby and with water ballast be fed to drum filter the inboard so that water ballast be sent to from the inboard outside, filter thus, and remove small fish and the shrimp that to get rid of by condensing thus.This is so that can remove pollutent in the water ballast such as dust, solid floating particle, bacterium, planktonic organism etc., thus purifying water ballast.The water ballast of purifying is sent in the ballast box 16 via the waterpipe 32 of processing, and in this storage.The structure of noting separating component 58 is not limited to above-mentioned embodiment, different embodiments is possible, as the embodiment of filtering separation device 74 is not provided, and utilize tripping device as replace the embodiment of magnetic separation devices 72 based on those tripping devices of precipitate and separate and flotation separation etc.
The ballast water treatment system 50 of above-mentioned the second embodiment is configured to like this, namely for the first embodiment, with stopple coupon 34,36, with 38 be connected to raw water pipeline 26, the waterpipe 32 of processing, and ballast box 16, and stopple coupon 34,36, and 38 each be connected in monitoring device 18.Monitoring device 18 automatically sampling passes through sampling tube 34,36, and 38 draw up next water ballast to study its water quality.The method of research water quality does not specifically limit, and for example, exists the image analysis of obtaining the view data of water ballast and carrying out view data by shooting directly to measure the method for hydrobiont concentration.In addition, water quality can also be used for measuring the turbidometer of water turbidity and come indirect measurement for the colourimeter (calorimeter) of measuring water colourity by using.
According to second embodiment of constructing as mentioned above, because the water quality of monitoring water ballast, and based on its output control the operational condition of water treatment device 52, so even when the water quality of water ballast according to flow condition and significantly not simultaneously, still can keep constant water ballast water quality always.
For example, deteriorating water quality when the water ballast of raw water pipeline 26, when causing hydrobiont concentration to improve, increase the processing power of water treatment device 52, as being input to the amount that chemical adds the chemical in the parts 54 by increasing, improve stirring effect in the parts 56 that condense increasing condensation number, and reduce by pump 28 and/or valve 30 and to process flow velocitys and increase.On the contrary, the water quality of water ballast improves when water inlet, when causing hydrobiological concentration to reduce, reduce the processing power of water treatment device 52, as being input to the amount that chemical adds the chemical in the parts 54 by reducing, reduce stirring effect in the parts 56 that condense reducing condensation number, and improve by pump 28 and/or valve 30 and to process flow velocitys and reduce.This will be so that can process with the change of water quality of the former water of water ballast, thus the water quality of water ballast after the stabilizing treatment.In addition, by the operational condition according to the water quality control water treatment device 52 of the former water of water ballast, can prevent that the chemical that chemical adds parts 54 from too much being added, prevent thus the disadvantageous effect of when discharging water ballast, uniting for local ecosystem.
Similarly, can tackle such situation, the change of water quality of the water ballast of the waterpipe 32 of wherein processing (that is, the water ballast after the just processing).That is, when hydrobiological concentration improved, the processing power of water treatment device 52 improved in the same manner as described above, and when hydrobiological concentration reduced, the processing power of water treatment device 52 reduced.This will be so that can carry out the feedback control of water treatment device 52, thus the water quality of water ballast after the stabilizing treatment.Noting the water quality of the water ballast of raw water pipeline 26 is compared with the water quality of the water ballast of the waterpipe 32 of processing can be more promptly and accurately change with the raw water quality of water ballast and process, thus the further water quality of the water ballast after the stabilizing treatment.
In embodiments of the invention, also monitor the water quality of the water ballast in the ballast box 16, allow thus the water quality of the water ballast in the supervision ballast box 16.Note as described below, when the deteriorating water quality in the ballast box 16, it can be processed by following method: the method that wherein circulation of the water ballast in the ballast box 16 is entered water treatment device 52 and again processes, or wherein when the water ballast in the ballast box 16 is discharged from, described water ballast enters water treatment device 52 and is again processed the method for discharging etc.
As mentioned above, in the second embodiment, the operational condition owing to control water treatment device 52 according to the water quality of water ballast can add an amount of condensing agent according to hydrobiological concentration.At this, the relation in the form of Fig. 8 between the addition of the turbidity of demonstration water ballast and condensing agent.According to embodiment of the present invention, can add an amount of condensing agent based on described relation.
The form that is noted that Fig. 8 shows that wherein poly aluminium chloride is as the situation of inorganic coagulant.
In addition, in second embodiment, owing to use based on condensing/water treatment device 52 of separation scheme, so can prevent the disadvantageous effect to the ecosystem that occurs as in the situation of using sterilizing agent.In addition, because when use based on condense/during the water treatment device 52 of separation scheme, mud (mud) (earth, biological dead volume etc.) will not pool in the ballast box 16, so can prevent the increase of hydrobiont in mud.The deteriorating water quality that therefore, can suppress the water ballast in the ballast box 16.
Note, although in the above-described embodiment, at three places (raw water pipeline 26, the waterpipe 32 of processing, with ballast box 16) monitoring water ballast water quality, but location and the quantity of point to be monitored are not limited to these, and for example, can take a sample to the water quality of water ballast at a place or two places of above-mentioned position.
Fig. 5 is the synoptic diagram of such system, wherein the ballast water treatment system of Fig. 4 is provided in the ballast box 16 the again function of processing ballast.Make circulation line 82 be connected in ballast box 16 thereby the ballast water treatment system 80 that shows in the figure constructed, and the front end of circulation line 82 is connected in raw water pipeline 26.Be circulation line 82 equipment pumps and valve (all showing), and described pump and valve are by control device 20 controls.The front end that is noted that circulation line 82 can be connected in pump 28 upstream sides (left side of Fig. 5), thereby pump 28 and valve 30 are used for water inlet and circulation time.
As in the ballast water treatment system 80 of above-mentioned structure, monitor the water quality of the water ballast in the ballast box 16 and based on this monitoring result, control the operational condition of water treatment device 52.For example, when the deteriorating water quality of the water ballast in the ballast box 16, the water ballast in the ballast box 16 is recycled in the water treatment device 52 by circulation line 82 and the again processing of beginning water ballast.Then, according to the water quality of the water ballast in the ballast box 16, thereby the operational condition of control water treatment device 52 is carried out the again processing of water ballast, is less than or equal to permissible value until water quality becomes.As a result, improved the water quality of the water ballast in the ballast box 16, and controlled it and be less than or equal permissible value.
Therefore, in embodiments of the invention, can circulate and purifying ballast box 16 in water ballast, and for example can in ship's navigation, carry out the purifying of water ballast.
In addition, although in the above-described embodiment, the water quality of the water ballast in the monitoring ballast box 16, and according to its result, the again processing of control water ballast, but structure can be such, with the water quality of the water ballast in the ballast box 16 with just process after the water-quality ratio of water ballast and according to comparative result, the operational condition when control is processed again.For example, structure can be such, when namely the water quality of the water ballast after just processing becomes and is equal to the water quality of the water ballast in the ballast box 16, stops the again processing of water ballast.
Fig. 6 is synoptic diagram, is presented at the flow process of carrying out the water discharge in the ballast water treatment system 50 of Fig. 4.Although noting drainage flow path has in the figure shown by using the water treatment device 52 of Fig. 4, pump 28, the example that valve 30 carries out draining, but the method for draining is not limited to this method, and draining can be undertaken by those water treatment device, pump and the valve when being different from water and injecting is provided.
Ballast water treatment system 50 shown in Fig. 6 is to construct like this, and namely with the pump 28 of the valve 30 of opening and driving, the water ballast in the ballast box 16 is discharged into the outside by water treatment device 52.According to the monitoring result to the water quality of the water ballast in the ballast box 16, control device 20 control water treatment device 52.For example, when the water quality (hydrobiological concentration) of the water ballast in the ballast box 16 surpasses permissible value, by driving the again processing of water treatment device 52 initial water ballasts, control the operational condition (injection rate of the processing volume of water ballast such as the sterilizing agent of time per unit, processing flow velocity) of water treatment device 52 according to the water quality of water ballast.Because this will improve the water quality of water ballast to be discharged, therefore can discharge the water ballast that is less than or equal to permissible value by control.
Thereby because according to an embodiment of the present invention, structure is such, and namely water treatment device 52 is positioned on the escape route of water ballast, therefore can carry out the again processing of water ballast when discharging, and increases water quality thus.So, even the water quality of the water ballast in the ballast box 16 descends in the navigation process, still can by when discharging again processing ballast satisfy the discharge standard of water ballast.
Claims (11)
1. ballast water treatment system, described system comprises the water treatment device of removing material to be removed from water ballast, and stores the ballast box of the water ballast of being processed by the water treatment device of installing aboard ship, described ballast water treatment system is characterised in that and comprises:
Monitor the monitoring device of the water quality of described water ballast; With
Based on the control device of the operational condition of the monitoring result of described monitoring device control water treatment device,
The monitoring of wherein said monitoring device is selected from more than at least a in the water quality of the water quality of water ballast described in the exit portion of the water quality of water ballast described in the inlet part of described water treatment device, described water treatment device and the described water ballast in the described ballast box
And described control device is controlled the operational condition of described water treatment device or is controlled the interior water ballast of described ballast box to the circulation of described water treatment device and the again processing of water ballast in described water treatment device of this circulation based on the water quality of the described described water ballast that monitors.
2. ballast water treatment system according to claim 1, wherein
Described water treatment device comprises:
Coagulation units, it is by injecting condensing agent to water ballast and stirring the water ballast material to be removed that condenses; With
Separation/removal device, its separation and removal are present in the aggregation in the described coagulation units.
3. ballast water treatment system according to claim 2, wherein
Thereby described control device is controlled the injection rate that described coagulation units is regulated described condensing agent based on the monitoring result of described monitoring device.
4. ballast water treatment system according to claim 2, wherein
Described separation/removal device is constructed to the combination of magneticseparation and filtering separation.
5. ballast water treatment system according to claim 3, wherein
Described separation/removal device is constructed to the combination of magneticseparation and filtering separation.
6. each described ballast water treatment system according to claim 1-4, wherein
Described monitoring device by measuring described water ballast turbidity and at least one of colourity monitor described water ballast.
7. each described ballast water treatment system according to claim 1-4, wherein
Described monitoring device is monitored described water ballast by the image analysis of carrying out described water ballast.
8. ballast water treatment system according to claim 6, wherein
Described monitoring device is monitored described water ballast by the image analysis of carrying out described water ballast.
9. according to claim 1-5,8 each described ballast water treatment systems, wherein
The processing volume that described control device control time per unit is processed by described water treatment device.
10. ballast water treatment system according to claim 6, wherein
The processing volume that described control device control time per unit is processed by described water treatment device.
11. ballast water treatment system according to claim 7, wherein
The processing volume that described control device control time per unit is processed by described water treatment device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-290955 | 2007-11-08 | ||
| JP2007290955A JP5238968B2 (en) | 2007-11-08 | 2007-11-08 | Ship |
| PCT/JP2008/070011 WO2009060813A1 (en) | 2007-11-08 | 2008-11-04 | Ballast water treatment system |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210107005.5A Division CN102673768B (en) | 2007-11-08 | 2008-11-04 | Ballast water treatment system |
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| CN101855178A CN101855178A (en) | 2010-10-06 |
| CN101855178B true CN101855178B (en) | 2013-02-13 |
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| CN200880115312XA Expired - Fee Related CN101855178B (en) | 2007-11-08 | 2008-11-04 | Ballast water treatment system |
| CN201210107005.5A Expired - Fee Related CN102673768B (en) | 2007-11-08 | 2008-11-04 | Ballast water treatment system |
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| CN201210107005.5A Expired - Fee Related CN102673768B (en) | 2007-11-08 | 2008-11-04 | Ballast water treatment system |
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| Country | Link |
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| JP (1) | JP5238968B2 (en) |
| KR (5) | KR101756624B1 (en) |
| CN (2) | CN101855178B (en) |
| SG (3) | SG10201701591TA (en) |
| WO (1) | WO2009060813A1 (en) |
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| CN102673768B (en) | 2015-06-10 |
| CN101855178A (en) | 2010-10-06 |
| SG10201701591TA (en) | 2017-04-27 |
| KR101712331B1 (en) | 2017-03-03 |
| KR20170023221A (en) | 2017-03-02 |
| KR20170024151A (en) | 2017-03-06 |
| CN102673768A (en) | 2012-09-19 |
| JP5238968B2 (en) | 2013-07-17 |
| WO2009060813A1 (en) | 2009-05-14 |
| KR20160014115A (en) | 2016-02-05 |
| SG185974A1 (en) | 2012-12-28 |
| KR20150086559A (en) | 2015-07-28 |
| JP2009112978A (en) | 2009-05-28 |
| KR101756624B1 (en) | 2017-07-26 |
| KR20100077012A (en) | 2010-07-06 |
| SG10201602094RA (en) | 2016-04-28 |
| KR101707066B1 (en) | 2017-02-15 |
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