CN202785757U - Electro-Fenton-like multifunctional device for treating ballast water of ships - Google Patents
Electro-Fenton-like multifunctional device for treating ballast water of ships Download PDFInfo
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- CN202785757U CN202785757U CN 201220466508 CN201220466508U CN202785757U CN 202785757 U CN202785757 U CN 202785757U CN 201220466508 CN201220466508 CN 201220466508 CN 201220466508 U CN201220466508 U CN 201220466508U CN 202785757 U CN202785757 U CN 202785757U
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Abstract
The utility model discloses an electro-Fenton-like multifunctional device for treating ballast water of ships. The electro-Fenton-like multifunctional device comprises an electro-Fenton-like reactor and a precipitation clarifier which are connected through a pipeline. Compared with the conventional electro-Fenton method, the electro-Fenton-like multifunctional device disclosed by the utility model has the beneficial effects of directly taking wastewater as a treated object and being free of adjustment of pH value, thereby being simple and convenient to operate; according to the utility model, multiple functions, such as catalytic oxidation of free radicals, electrolytic oxidation, electric flocculation and adsorption are effectively coupled into a whole, and therefore, the electro-Fenton-like multifunctional device achieves the purpose of removing different types of pollutants simultaneously and is strong in adaptability, suitable for pollution control in complex water environments and good in pollution control effect; and the electro-Fenton-like multifunctional device has the advantages of forming a flocculation effect by virtue of the alkalescence condition of original seawater to produce flocculating particles, increasing the contact area, accelerating the mass transfer and improving the.OH generation efficiency.
Description
Technical field
The utility model relates to the class electricity Fenton device of the pollutent such as algae and metabolism toxin thereof in a kind of Treatment of Ships'Ballast Water, more particularly, relates to the device of the multi-functional coupling integrated Treatment of Ships'Ballast Water of kind electricity Fenton.
Background technology
In recent years, China coast bank red tide is more and more serious, and one of its major reason is the harm of the stronger red tide plankton of external viability.The discharging of ballast water for ship is the one of the main reasons that causes the invasion of littoral sea adventive.The biological pollution problems such as ballast water for ship algae are acknowledged as present Environmental Pollution problem.The ocean environment that the seaweeds planktonic organism causes and the solution of safety problem mainly comprise two broad aspect: the one, and the deactivation of frustule and separation are removed, and the 2nd, born of the same parents reach the degraded of emiocytosis thing outward.The separation removal of frustule is different with the characteristics of degraded in water treatment of dissolubility pollutant in the water, therefore the deactivation separation of cell and the degraded of metabolite generally are difficult to realize simultaneously, and in the cell deactivation, tend to cause a large amount of born of the same parents' intracellular metabolite logistics and go out, produce thus more serious water quality endotoxin contamination problem.Therefore, how to take into account deactivation and separate frustule and degraded algae metabolism endotoxin pollutent is a great problem of pollution of the sea field face.
Electricity Fenton technology obtains extensive concern in water treatment field in recent years as a kind of high-level oxidation technology.The effect of electricity Fenton mainly is the advanced oxidation effect that produces Fenton reagent under the acidic conditions and cause free radical reaction, and a lot of dissolubility pollutants in the water are had efficient degradation effect.Electricity Fenton technology is high, simple to operate to the water pollutant degradation efficiency, and is economical convenient.But the requirement of acidic conditions has limited the application of electric Fenton technology in a lot of system for handling, and also there is technical deficiency in single oxygenizement to the solution of the pollution problem of a lot of complexity.The electrochemical treatment technology of ballast water for ship mainly adopts electrolytic process at present, rely on electrolytic seawater to produce hypochlorous acid, clorox etc. the biological enzyme oxygenolysis in the microbe is caused its inefficacy, perhaps act on the microbial cell wall, its permeability is increased, cause cell dead because tenuigenin flows out.The most direct impact of this electrolysis treatment technology is that a large amount of intracellular organic matters flow out, and causes the increase of biotoxin in the seawater.Therefore develop a kind ofly need not add that any chemical agent, applicable water quality scope are wide, the collaborative coupling of multiaction,, class electricity Fenton water technology that cost low, workable high to complicated pollutant removal and install significant.
Summary of the invention
The utility model is for the proposition of above problem, and develops the device of the multi-functional coupling integrated Treatment of Ships'Ballast Water of kind electricity Fenton.
The device of the multi-functional coupling integrated Treatment of Ships'Ballast Water of one kind electricity Fenton is characterized in that, comprises class electro-Fenton reactor and settling pond, described class electro-Fenton reactor be connected settling pond and connect by pipeline; Described class electro-Fenton reactor comprises reaction tank, D.C. regulated power supply, aeration pump, aerating apparatus, and at least one group of anodic-cathodic group, one side of reaction tank is provided with water-in, water-in is connected with water inlet pipe, water inlet pipe directly accesses ballast water for ship, the opposite side of reaction tank is provided with water outlet, described water outlet is connected with rising pipe, aerating apparatus is connected with the air outlet of aeration pump, and aerating apparatus is arranged in the negative electrode of anodic-cathodic group, the anodic-cathodic group is arranged in the reaction tank, the anode of anodic-cathodic group is connected with the positive pole of D.C. regulated power supply, the negative electrode of anodic-cathodic group is connected with the negative pole of D.C. regulated power supply, and when device only comprised one group of anodic-cathodic group, the anode material of anodic-cathodic group was iron, when device comprises more than two groups the anodic-cathodic group, every group of anodic-cathodic group is arranged in parallel, and the anode material of at least one group of anodic-cathodic group is iron, and a side of described settling pond is provided with the settling pond water outlet.
Preferably, when device comprised more than two groups the anodic-cathodic group, every group of anodic-cathodic group negative electrode and anode each other was arranged alternately.
Preferably, a side of settling pond is provided with water-distributing device, and water-distributing device is connected by rising pipe with reaction tank.
Preferably, the distance between adjacent electrode is 4-8cm.
Preferably, when device comprised more than two groups the anodic-cathodic group, the distance between adjacent electrode equated.
Preferably, water-in is arranged at the bottom of reaction tank one side, and water outlet is arranged at the top of reaction tank opposite side.
Implement the device of the multi-functional coupling integrated Treatment of Ships'Ballast Water of class electricity Fenton of the present utility model, have following beneficial effect:
(1), the utility model compares with conventional electro-fenton process, directly with waste water as processing object, do not regulate the pH value, simple, convenient.
(2), the utility model is multiaction efficient coupling one such as free radical catalyzed oxidation, electrolytic oxidation, electricity flocculation and absorption, realizes the common removal purpose of dissimilar pollutents, strong adaptability, the Pollution abatement of suitable Complex Water Environment, Pollution abatement is effective.
(3), the utility model forms throwing out by former seawater weak basic condition and produces the flocculation particle, increased contact area, Accelerative mass transfer improves the formation efficiency of OH.
(4), the utility model adopts electrode group Parallel Design, improved adaptability and the treatment effect for the treatment of unit to water quality and quantity.When the processing water yield is large, can increase electrode group in parallel.
(5) but but, also operate continuously of the utility model periodical operation, both be fit to the batch processed of the little water yield, be fit to again process continuously, workable.
(6), the utility model technique is advanced, stable, simple to operate, equipment is easy to bookkeeping, has stronger practicality, economy.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the device of the multi-functional coupling integrated Treatment of Ships'Ballast Water of class of the present utility model electricity Fenton.
Among the figure: 1, reaction tank; 2, settling pond; 3, D.C. regulated power supply; 4, water-in; 5, water outlet; 6, aerating apparatus; 7, aeration pump; 8, water-distributing device; 9, reactor; 10, settling pond water outlet; 11, anodic-cathodic group.
Embodiment
The utility model provides the device of the multi-functional coupling integrated Treatment of Ships'Ballast Water of kind electricity Fenton.Below in conjunction with accompanying drawing the technical solution of the utility model is elaborated.
The utility model provides the device of the multi-functional coupling integrated Treatment of Ships'Ballast Water of kind electricity Fenton, it is characterized in that, comprises class electro-Fenton reactor and settling pond, described class electro-Fenton reactor be connected settling pond and connect by pipeline; Described class electro-Fenton reactor comprises reaction tank, D.C. regulated power supply, aeration pump, aerating apparatus, and at least one group of anodic-cathodic group, one side of reaction tank is provided with water-in, water-in is connected with water inlet pipe, water inlet pipe directly accesses ballast water for ship, the opposite side of reaction tank is provided with water outlet, described water outlet is connected with rising pipe, aerating apparatus is connected with the air outlet of aeration pump, and aerating apparatus is arranged in the negative electrode of anodic-cathodic group, the anodic-cathodic group is arranged in the reaction tank, the anode of anodic-cathodic group is connected with the positive pole of D.C. regulated power supply, the negative electrode of anodic-cathodic group is connected with the negative pole of D.C. regulated power supply, and when device only comprised one group of anodic-cathodic group, the anode material of anodic-cathodic group was iron, when device comprises more than two groups the anodic-cathodic group, every group of anodic-cathodic group is arranged in parallel, and the anode material of at least one group of anodic-cathodic group is iron, and a side of described settling pond is provided with the settling pond water outlet.
Fig. 1 is the structural representation of an embodiment of the device of the multi-functional coupling integrated Treatment of Ships'Ballast Water of class of the present utility model electricity Fenton.As shown in the figure, device comprises class electro-Fenton reactor 9 and settling pond 2, described class electro-Fenton reactor 9 be connected settling pond 2 and connect by pipeline; Described class electro-Fenton reactor 9 comprises reaction tank 1, D.C. regulated power supply 3, aeration pump 7, aerating apparatus 6, and two groups of anodic-cathodic groups (anodic-cathodic group I regulating YIN and YANG electrode group II), the bottom of one side of reaction tank 1 is provided with water-in 4, water-in 4 is connected with water inlet pipe, water inlet pipe directly accesses ballast water for ship, the top of the opposite side of reaction tank 1 is provided with water outlet 5, described water outlet 5 is connected with rising pipe, aerating apparatus 6 is connected with the air outlet of aeration pump 7, and aerating apparatus 6 is arranged in the negative electrode of anodic-cathodic group I regulating YIN and YANG electrode group II, anodic-cathodic group I regulating YIN and YANG electrode group II is arranged in parallel in reaction tank 1, and anodic-cathodic group I regulating YIN and YANG electrode group II negative electrode and anode each other is arranged alternately, the anode of anodic-cathodic group is connected with the positive pole of D.C. regulated power supply 3, the negative electrode of anodic-cathodic group is connected with the negative pole of D.C. regulated power supply 3, one side of settling pond is provided with water-distributing device 8, water-distributing device 8 is connected by rising pipe with reaction tank, and a side of settling pond is provided with settling pond water outlet 10.Anodic-cathodic group negative electrode and anode are arranged alternately, be that the anode and cathode position of anodic-cathodic group I regulating YIN and YANG electrode group II arranges order and is followed successively by: the anode of the anode of the negative electrode of anodic-cathodic group I, anodic-cathodic group I, the negative electrode of anodic-cathodic group II, anodic-cathodic group II, the perhaps negative electrode of the anode of the negative electrode of the anode of anodic-cathodic group I, anodic-cathodic group I, anodic-cathodic group II, anodic-cathodic group II.As required, device of the present utility model can comprise more groups of anodic-cathodic groups.When comprising many group anodic-cathodic groups, each is organized the anodic-cathodic group and is arranged in parallel, and every group of anodic-cathodic group negative electrode and anode are arranged alternately, namely order is successively: the anode of the anode of the negative electrode of anodic-cathodic group I, anodic-cathodic group I, the negative electrode of anodic-cathodic group II, anodic-cathodic group II ... the anode of the negative electrode of anodic-cathodic group N, anodic-cathodic group N, the perhaps negative electrode of the anode of the negative electrode of the anode of anodic-cathodic group I, anodic-cathodic group I, anodic-cathodic group II, anodic-cathodic group II ... the negative electrode of the anode of anodic-cathodic group N, anodic-cathodic group N.
In the present embodiment, the anode material of anodic-cathodic group I is iron, and the anode material of anodic-cathodic group II is titanium.In electrolytic action, anode material is that the anode of the anodic-cathodic group of iron is separated out Fe
2+, oxygen in water produces H at each negative electrode
2O
2, the Fe that anode produces
2+H with the negative electrode generation
2O
2The Fenton reaction occurs mutually produce OH, the performance strong oxidation; The Fe that does not produce with anode that the negative electrode of anodic-cathodic group produces
2+The H of reaction
2O
2Fenton speed of reaction that can the accelerating electrode group, the anode material of electrode group is that tin antimony anode produces OH by the electron hole simultaneously, and carries out the auxiliary catalysis oxidation, makes a large amount of Cl in the ballast water for ship
-Generated the ClO with strong oxidizing property by electrolysis
-Or perchloric acid, algae active cells, and the metabolite of degraded algae active cells secretion; Simultaneously, the Fe that produces in the electrode group
2+And Fe
2+The Fe of the oxidized rear formation of part
3+Poly-hydroxy complex compound in the middle of forming produces throwing out, and alga cells and the residual body cohesion of deactivation are formed the flocculation particle, and the metabolism pollutent in the planar water, and the flocculation particle increases the gas-to-liquid contact area simultaneously, promotes the generation of OH.
Each interelectrode reaction was more abundant when the distance between each adjacent electrode was 4-8cm, and reaction effect is better.When the distance between each adjacent electrode equated, each interelectrode reaction was the most abundant, and reaction effect is best.
The water-in that arranges on the reaction tank also can be arranged on top or the middle part of reaction tank one side, and the water outlet that arranges on the reaction tank also can be arranged on middle part or the bottom of reaction tank one side.But more convenient in order to carry out operate continuously, preferably water-in is arranged at the bottom of reaction tank one side, water outlet is arranged at the top of reaction tank one side.
Also water-distributing device can be set in the settling pond of device.But in order to carry out the convenience of operate continuously, and the water inlet in the settling settling pond, water-distributing device preferably is set.
Utilize the method for device Treatment of Ships'Ballast Water of the present utility model, comprise the steps:
S1, ballast water for ship are directly entered the reaction tank of class electro-Fenton reactor by water inlet pipe;
S2, plugged are opened aeration pump;
S3, in the device that comprises one group of anodic-cathodic group, the anodic-cathodic group in the reaction tank is in electrolytic action, iron anode is separated out Fe
2+, oxygen in water produces H at negative electrode
2O
2, the Fe that anode produces
2+H with the negative electrode generation
2O
2The Fenton reaction occurs mutually produce OH, performance strong oxidation, the Fe that anode produces
2+And Fe
2+The Fe of the oxidized rear formation of part
3+Poly-hydroxy complex compound in the middle of forming produces throwing out, and alga cells and the residual body cohesion of deactivation are formed the flocculation particle, and the metabolism pollutent in the planar water, and the flocculation particle increases the gas-to-liquid contact area simultaneously, promotes the generation of OH;
In the device that comprises the anodic-cathodic group more than two groups, the anodic-cathodic group in the reaction tank is in electrolytic action, and anode material is that the anode of the anodic-cathodic group of iron is separated out Fe
2+, oxygen in water produces H at each negative electrode
2O
2, the Fe that anode produces
2+H with the negative electrode generation
2O
2The Fenton reaction occurs mutually produce OH, the performance strong oxidation; The Fe that does not produce with anode that the negative electrode of anodic-cathodic group produces
2+The H of reaction
2O
2Fenton speed of reaction that can the accelerating electrode group, the anode material of electrode group is that the anode of titanium or tin antimony etc. produces OH by the electron hole simultaneously, and carries out the auxiliary catalysis oxidation, makes a large amount of Cl in the ballast water for ship
-Generated the ClO with strong oxidizing property by electrolysis
-Or perchloric acid, algae active cells, and the metabolite of degraded algae active cells secretion; Simultaneously, the Fe that produces in the electrode group
2+And Fe
2+The Fe of the oxidized rear formation of part
3+Poly-hydroxy complex compound in the middle of forming produces throwing out, and alga cells and the residual body cohesion of deactivation are formed the flocculation particle, and the metabolism pollutent in the planar water, and the flocculation particle increases the gas-to-liquid contact area simultaneously, promotes the generation of OH;
Water after processing in S4, the reaction tank enters through water-distributing device by rising pipe and carries out precipitation process in the settling pond;
S5, the supernatant liquor in settling pond after the process precipitation process are discharged through the settling pond water outlet.The above; it only is the better embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to replacement or change according to the technical solution of the utility model and inventive concept thereof, all should be encompassed within the protection domain of the present utility model.
Material is the Fe that the anode of iron is separated out
2+H with the negative electrode generation
2O
2Effect produces OH, and other anodes produce OH and play certain auxiliary catalysis effect by the electron hole, simultaneously a large amount of Cl in the seawater
-Generated ClO by electrolysis
-, integral body has strong oxidizing property, directly the metabolites such as algae toxin of algae isoreactivity cell and its secretion of degrading simultaneously; Simultaneously, former water pH value generally about 8, the Fe that generate in the water this moment
2+The Fe of subsequently oxidized formation
3+Deng forming middle poly-hydroxy complex compound, produce certain throwing out, the cohesions such as alga cells and the residual body of deactivation are formed the flocculation particle, and the metabolism pollutent in the while planar water; The flocculation particle that forms has increased the contact area of gas-liquid, and Accelerative mass transfer promotes the generation of OH; Adjust certain residence time, the water after the processing enters rectangular sedimentation tank through rising pipe and precipitates, and supernatant liquor is finally discharged through overflowing the mouth of a river.In reaction, by regulating the conditions such as current density, aeration rate, the residence time, realize the organic collaborative coupling of free-radical oxidn, electrolytic oxidation, electricity flocculation and absorption, realize effective deactivation and separate simultaneously catabolism of frond pollutent.
The parameters such as the size of each device described in the utility model, flow are determined according to conditions such as type of ship, weight-carrying capacity.
Utilize device of the present utility model to administer the successful that water pollutes, come proved below by an embodiment.
Reaction target solution volume: single electrode group 1000mL, two electrodes group 2500mL;
Reaction target solution temperature: 25 ° of C;
Reaction target solution frustule concentration is about (2.8-7.3) * 10
5Individual/mL;
Reaction target solution algae metabolism pollutent (COD
Mn) starting point concentration is 12.2-16.7mg/L;
The solution initial pH value is 8.3;
Polar plate area is 27cm
2
Be respectively single group electrode and two group electrode, single group electrode anode is iron, and two groups of electrode anodes are iron and SnO
2-Sb, negative electrode are activated carbon fiber, process algae-containing seawater, and when different operating voltage and processing different time, the generation concentration of hydroxyl, the inactivation ratio of frustule and metabolism removal of pollutants rate situation see Table shown in one.
Table one: the generation of hydroxyl, deactivation and the metabolism removal of pollutants rate of algae in the class electricity Fenton treating processes.
Can find out that from embodiment class electricity Fenton has the higher motility rate that do not have to algae, simultaneously pollutent is had preferably removal effect.In class electricity Fenton mechanism, hydroxyl and Fe are arranged
3+Produce, be not directly proportional with inactivation ratio and the removal of pollutants rate of algae but hydroxyl produces concentration.
The above; it only is the better embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to replacement or change according to the technical solution of the utility model and inventive concept thereof, all should be encompassed within the protection domain of the present utility model.
Claims (6)
1. the device of the multi-functional coupling integrated Treatment of Ships'Ballast Water of kind electricity Fenton is characterized in that, comprises class electro-Fenton reactor and settling pond, described class electro-Fenton reactor be connected settling pond and connect by pipeline; Described class electro-Fenton reactor comprises reaction tank, D.C. regulated power supply, aeration pump, aerating apparatus, and at least one group of anodic-cathodic group, one side of reaction tank is provided with water-in, water-in is connected with water inlet pipe, water inlet pipe directly accesses ballast water for ship, the opposite side of reaction tank is provided with water outlet, described water outlet is connected with rising pipe, aerating apparatus is connected with the air outlet of aeration pump, and aerating apparatus is arranged in the negative electrode of anodic-cathodic group, the anodic-cathodic group is arranged in the reaction tank, the anode of anodic-cathodic group is connected with the positive pole of D.C. regulated power supply, the negative electrode of anodic-cathodic group is connected with the negative pole of D.C. regulated power supply, and when device only comprised one group of anodic-cathodic group, the anode material of anodic-cathodic group was iron, when device comprises more than two groups the anodic-cathodic group, every group of anodic-cathodic group is arranged in parallel, and the anode material of at least one group of anodic-cathodic group is iron, and a side of described settling pond is provided with the settling pond water outlet.
2. the device of the multi-functional coupling integrated Treatment of Ships'Ballast Water of class according to claim 1 electricity Fenton is characterized in that, when device comprised more than two groups the anodic-cathodic group, every group of anodic-cathodic group negative electrode and anode each other was arranged alternately.
3. the device of the multi-functional coupling integrated Treatment of Ships'Ballast Water of class electricity Fenton according to claim 1 is characterized in that a side of settling pond is provided with water-distributing device, and water-distributing device is connected by rising pipe with reaction tank.
4. the device of the multi-functional coupling integrated Treatment of Ships'Ballast Water of class electricity Fenton according to claim 1 is characterized in that the distance between adjacent electrode is 4-8cm.
5. the device of the multi-functional coupling integrated Treatment of Ships'Ballast Water of class according to claim 1 electricity Fenton is characterized in that, when device comprised more than two groups the anodic-cathodic group, the distance between adjacent electrode equated.
6. the device of the multi-functional coupling integrated Treatment of Ships'Ballast Water of class electricity Fenton according to claim 1 is characterized in that water-in is arranged at the bottom of reaction tank one side, and water outlet is arranged at the top of reaction tank opposite side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220466508 CN202785757U (en) | 2012-09-13 | 2012-09-13 | Electro-Fenton-like multifunctional device for treating ballast water of ships |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220466508 CN202785757U (en) | 2012-09-13 | 2012-09-13 | Electro-Fenton-like multifunctional device for treating ballast water of ships |
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| CN 201220466508 Withdrawn - After Issue CN202785757U (en) | 2012-09-13 | 2012-09-13 | Electro-Fenton-like multifunctional device for treating ballast water of ships |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838189A (en) * | 2012-09-13 | 2012-12-26 | 大连海事大学 | Device and method for treating ship ballast water multifunctionally by electro-fenton like technology |
| CN104003480A (en) * | 2014-03-06 | 2014-08-27 | 东莞理工学院 | Novel Fenton iron chip inner-electrolysis fluidized bed reactor |
| CN104176860A (en) * | 2014-08-13 | 2014-12-03 | 东莞市东元新能源科技有限公司 | Electric flocculation effluent treatment system |
| CN105060412A (en) * | 2015-07-31 | 2015-11-18 | 长江水利委员会长江科学院 | Apparatus for adsorption-electrolysis-aeration synergistic integrated treatment of eutrophic water body |
-
2012
- 2012-09-13 CN CN 201220466508 patent/CN202785757U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838189A (en) * | 2012-09-13 | 2012-12-26 | 大连海事大学 | Device and method for treating ship ballast water multifunctionally by electro-fenton like technology |
| CN102838189B (en) * | 2012-09-13 | 2013-08-28 | 大连海事大学 | Device and method for treating ship ballast water multifunctionally by electro-fenton like technology |
| CN104003480A (en) * | 2014-03-06 | 2014-08-27 | 东莞理工学院 | Novel Fenton iron chip inner-electrolysis fluidized bed reactor |
| CN104003480B (en) * | 2014-03-06 | 2015-08-19 | 东莞理工学院 | A kind of Fenton iron considers inner electrolysis fluidized bed reactor to be worth doing |
| CN104176860A (en) * | 2014-08-13 | 2014-12-03 | 东莞市东元新能源科技有限公司 | Electric flocculation effluent treatment system |
| CN104176860B (en) * | 2014-08-13 | 2015-12-09 | 东莞市东元新能源科技有限公司 | A kind of electricity flocculation Waste Water Treatment |
| CN105060412A (en) * | 2015-07-31 | 2015-11-18 | 长江水利委员会长江科学院 | Apparatus for adsorption-electrolysis-aeration synergistic integrated treatment of eutrophic water body |
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Granted publication date: 20130313 Effective date of abandoning: 20130828 |
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