CN101759249A - Ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method and device - Google Patents
Ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method and device Download PDFInfo
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- CN101759249A CN101759249A CN201010017226A CN201010017226A CN101759249A CN 101759249 A CN101759249 A CN 101759249A CN 201010017226 A CN201010017226 A CN 201010017226A CN 201010017226 A CN201010017226 A CN 201010017226A CN 101759249 A CN101759249 A CN 101759249A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 62
- 230000015271 coagulation Effects 0.000 title claims abstract description 38
- 238000005345 coagulation Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000008878 coupling Effects 0.000 title claims abstract description 31
- 238000010168 coupling process Methods 0.000 title claims abstract description 31
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 26
- 229910052698 phosphorus Inorganic materials 0.000 claims description 26
- 239000011574 phosphorus Substances 0.000 claims description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 238000004065 wastewater treatment Methods 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- 238000012545 processing Methods 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract 1
- 230000036632 reaction speed Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 7
- 238000011160 research Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000003115 supporting electrolyte Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012851 eutrophication Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001449 anionic compounds Chemical class 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002925 chemical effect Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910001412 inorganic anion Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention discloses ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method and device. In the method, the phosphorus-contained wastewater of a wastewater storing tank is conveyed into a reaction tank; a power supply supplies power for a positive electrode and a negative electrode in an electrode unit, and the positive electrode generates a metal ion; and an ultrasonic wave generated by an ultrasonic generator directly acts on the phosphorus-contained wastewater in the reaction tank by the wall vibration of the reaction tank and is matched with the high-valence state metal ion to realize the coagulated purification of the phosphorus-contained wastewater. The device comprises the ultrasonic generator, the reaction tank, the power supply, the wastewater storing tank, a water discharge container, a flowmeter and a circulating pump. The invention has high reaction speed, high processing efficiency and low energy consumption.
Description
Technical field
The present invention relates to a kind of method and device of ultrasonic coupling electrochemical coagulation Removal of Phosphorus in Wastewater.By design flow dynamic formula reaction unit, utilize ultrasonic assisted electrochemical coagulation device, can obviously improve the processing speed of phosphorus-containing wastewater.
Background technology
A large amount of dischargings of phosphorus-containing wastewater cause body eutrophication, destroy the eubiosis of water body, and quality of water environment is worsened, and have a strong impact on people's problem of water consumption, also can make water surrounding lose recreational value.The average content of phosphorus is respectively 0.02mg/L and 0.088mg/L in fresh water and seawater.At present, the municipal effluent water displacement increases sharply, and year increases water displacement up to 2,400,000,000 m
3, the concentration of phosphorus is about 10~20mg/L in the municipal effluent.Water body was regarded as eutrophication when total phosphorous was greater than 0.02mg/L usually.Therefore, the processing of phosphorus is very important in the waste water.
The method of dephosphorization at present mainly contains physicochemical treatment method and biological treatment.Physico-chemical process is generally to use during engineering is handled as absorption and chemical precipitation method, but the required added amount of chemical of this method is big, equipment and running cost height, and it is big to produce sludge quantity, and inorganic anion easily causes secondary pollution, and its application is subjected to certain limitation.Need in the biological process dephosphorization process that liquid phosphorus is transferred to sludge phase and handle, and processing efficiency generally is lower than 30%, fluctuation of service, the operation strictness is subjected to the influence of the temperature of waste water and potential of hydrogen etc.So be necessary to develop efficient feasible phosphorus removing method.
Electrochemical coagulation (cohesion) technology is emerging in recent years water technology, because this technical finesse waste water efficient height, it is wide, simple to operate to remove the pollutent scope, and processing cost is low, becomes the research focus of domestic and international water technology.The research of at present relevant electrochemical coagulation dephosphorization technique mainly lays particular emphasis on investigates the influence of each influence factor to dephosphorization efficiency by using, and this technology is optimized.In electrochemical coagulation dephosphorization process, reducing energy consumption, raising current efficiency and electrode passivation phenomenon is the subject matter that needs solution in this process application.
Ultrasonic-electrocatalysis is branch's content at ultrasonic electrochemical, is the new technology that ultrasonic wave is combined with electrocatalysis.In recent years, the ultrasonic electrochemical researchdevelopment is very fast, is one of sonochemistry and electrochemical forward position research field.Nineteen ninety, T.J.Mason etc. have at first proposed the notion of ultrasonic electrochemical, after this, ultrasonic electrochemical is flourish as one of electrochemistry and sonochemistry new branch, has been widely used in research fields such as plating and galvanic deposit, organic synthesis, material preparation, electroanalytical chemistry so far.The research that ultrasonic electrochemical is applied to treatment of Phosphorus Containing Waste Water also seldom, the processing that ultrasonic-electrochemical coagulation method is applied to phosphorus-containing wastewater yet there are no report.
Because physics and chemical effect that ultrasonic assisted electrochemical coagulation produces, so ultrasonic have many potential advantages with combining of electrochemical coagulation, these advantages comprise the cleaning of electrode surface and degasification, the depassivation of electrode surface, the erosion of electrode surface; Quicken the transmission of liquid phase quality; Accelerate speed of reaction; Improve degradation efficiency etc.
Summary of the invention
The present invention seeks to provides a kind of ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method and device at the defective that prior art exists.
The present invention adopts following technical scheme for achieving the above object:
Ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method of the present invention is characterized in that described method is as follows:
Waste water tank is imported phosphorus-containing wastewater in the reactive tank; Power supply is given anode, the negative electrode power supply in the electrode unit, and anode produces high valence state metal ion; The ultrasonic wave that ultra-sonic generator produces is vibrated the phosphorus-containing wastewater that directly acts in the reactive tank by the wall of reactive tank, cooperates described high valence state metal ion to realize that coagulation purifies phosphorus-containing wastewater.
Described ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method, the ultrasonic wave power input that it is characterized in that described ultra-sonic generator is at 50~100W, and ultrasonic frequency is at 50kHz~100kHz.
Described ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method, the operating operation voltage that it is characterized in that described power supply are at 3V~15V, and corresponding electric current is 0.1~2.4A/cm
2
Described ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method is characterized in that described reactive tank contains ionogen Na
2SO
4Concentration be 0.1mmol/L~10mmol/L.
The treatment unit of described ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method, it is characterized in that comprising ultra-sonic generator, waste water tank, power supply, header tank, water exit container, under meter and recycle pump, wherein be connected with the water inlet of reactive tank behind the water outlet of the waste water tank serial connection under meter, pick out the water inlet of water receptacle and waste water tank behind the water outlet serial connection recycle pump of reactive tank respectively, numerous the electrode units that structure is identical are set in the reactive tank, each electrode supply all comprises the first anode electrode that is arranged in order, cathode electrode, the second anode electrode constitutes, two anode electrodes connect the positive pole of power supply, and cathode electrode connects the negative electrode of power supply; Ultra-sonic generator be arranged at reactive tank the bottom, be affixed on the wall of reactive tank, the ultrasonic wave that ultra-sonic generator produces is without coupling liquid, but the wall vibration by reactive tank directly acts on the phosphorus-containing wastewater in the reactive tank.
Described ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treatment equipment is characterized in that the water outlet of described reactive tank and water inlet respectively are provided with a baffle plate.
Described ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treatment equipment, it is characterized in that described anode electrode adopts netted iron or reticulated aluminum or netted iron, aluminium, titanium composite anode, described cathode electrode adopts the copper mesh negative electrode, and the spacing of cathode electrode and anode electrode is 5mm~35mm.
The present invention adopts meshed anode, the copper mesh negative electrode, polar plate spacing is at 5mm~35mm, by dividing plate reactor is divided into inhalant region, reaction zone and exhalant region three parts, also can guarantee simultaneously the waste water electrode surface of flowing through fully, by deriving reaction product, carry out to the direction that generates product thereby change the chemical equilibrium driving a reaction, improve speed of response.Ultra-sonic generator directly acts on reactor wall in addition, and ultrasonic wave is without coupling liquid, but directly acts on reaction solution by the wall vibration, has improved the utilization ratio of acoustic energy, also strengthens the collaborative coupling of ultrasonic wave and electrochemical coagulation (cohesion) simultaneously.
For the processing of phosphorus-containing wastewater, ultrasonic wave assisted electrochemical coagulation (cohesion) technology is compared with independent electrochemical coagulation (cohesion), and speed of response improves 5~10 times, and processing efficiency improves more than 5 times, and energy consumption has reduced by 1~2 times.
Description of drawings
Fig. 1: structure iron of the present invention.
The legend explanation:
The A water inlet, B baffle plate, C anode, D negative electrode, E water outlet, (1) ultra-sonic generator, (2) reactive tank, (3) power supply, (4) waste water tank, (5) water exit container, (6) under meter, (7) recycle pump
Embodiment
The invention will be further described below in conjunction with embodiment:
Ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method is characterized in that described method is as follows:
Described ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method, the ultrasonic wave power input that it is characterized in that described ultra-sonic generator 1 is at 50~100W, and ultrasonic frequency is at 50kHz~100kHz.
Described ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method, the operating operation voltage that it is characterized in that described power supply 3 are at 3V~15V, and corresponding electric current is 0.1~2.4A/cm
2
Described ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method is characterized in that described reactive tank 2 contains ionogen Na
2SO
4Concentration be 0.1mmol/L~10mmol/L.
As shown in Figure 1.The treatment unit of described ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method, it is characterized in that comprising ultra-sonic generator 1, reactive tank 2, power supply 3, waste water tank 4, water exit container 5, under meter 6 and recycle pump 7, wherein the water outlet of waste water tank 4 serial connection under meter 6 backs are connected with the water inlet of reactive tank 2, pick out the water inlet of water receptacle 5 and waste water tank 4 behind the water outlet serial connection recycle pump 7 of reactive tank 2 respectively, numerous the electrode units that structure is identical are set in the reactive tank 2, each electrode supply all comprises the first anode electrode that is arranged in order, cathode electrode, the second anode electrode constitutes, two anode electrodes connect the positive pole of power supply 3, and cathode electrode connects the negative electrode of power supply 3; Ultra-sonic generator 1 be arranged at reactive tank 2 the bottom, be affixed on the wall of reactive tank 2, the ultrasonic wave that ultra-sonic generator 1 produces is without coupling liquid, but the wall vibration by reactive tank 2 directly acts on the phosphorus-containing wastewater in the reactive tank 2.
Described ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treatment equipment is characterized in that the water outlet of described reactive tank 2 and water inlet respectively are provided with a baffle plate B.
Described ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treatment equipment is characterized in that described anode electrode adopts netted iron or aluminium or titanium composite anode, and described cathode electrode adopts the copper mesh negative electrode, and the spacing of cathode electrode and anode electrode is 5mm~35mm.
Specific embodiment is as follows:
Embodiment 1: the preparation total phosphorus is the 50mg/L simulated wastewater, handles in apparatus of the present invention.Concrete operations parameter and treatment effect are as follows:
Operating parameters:
Ultrasonic wave power input: 100W;
Ultrasonic frequency: 80kHz;
The operating operation voltage of direct supply: 8V;
Supporting electrolyte Na
2SO
4Concentration: 5mmol/L;
Corresponding electric current: 0.4A/cm
2
Polar plate spacing: 10mm;
Treatment time: 6min.
Embodiment 2: the preparation total phosphorus is the 10mg/L simulated wastewater, handles in apparatus of the present invention.Concrete operations parameter and treatment effect are listed as follows:
Operating parameters:
Ultrasonic wave power input: 100W;
Ultrasonic frequency: 80kHz;
The operating operation voltage of direct supply: 8V;
Supporting electrolyte Na
2SO
4Concentration: 5mmol/L;
Corresponding current density: 0.4A/cm
2
Polar plate spacing: 20mm;
Treatment time: 6min.
Embodiment 3: the preparation total phosphorus is the 100mg/L simulated wastewater, handles in apparatus of the present invention.Do not start circulation device, 60min opens ultrasonic wave before the reaction, closes ultrasonic wave behind the 60min and carries out independent electrochemical degradation, and sampling detects behind the 30min.Concrete test operation parameter and treatment effect data list are as follows:
Operating parameters:
Ultrasonic wave power input: 100W;
Ultrasonic frequency: 80kHz;
The operating operation voltage of direct supply: 15V;
Supporting electrolyte Na
2SO
4Concentration: 5mmol/L;
Corresponding electric current 0.4A/cm
2
Polar plate spacing: 10mm.
Claims (7)
1. ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method is characterized in that described method is as follows:
Waste water tank (4) is imported phosphorus-containing wastewater in the reactive tank (2); Power supply (3) is given anode, the negative electrode power supply in the electrode unit, and anode produces metal ion; The ultrasonic wave that ultra-sonic generator (1) produces directly acts on the interior phosphorus-containing wastewater of reactive tank (2) by the wall vibration of reactive tank (2), cooperates described high valence state metal ion to realize that coagulation purifies phosphorus-containing wastewater.
2. ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method according to claim 1, the ultrasonic wave power input that it is characterized in that described ultra-sonic generator (1) is at 50~100W, and ultrasonic frequency is at 50kHz~100kHz.
3. ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method according to claim 1, the operating operation voltage that it is characterized in that described power supply (3) are at 3V~15V, and corresponding electric current is 0.1~2.4A/cm
2
4. the treatment unit of a ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method as claimed in claim 1, it is characterized in that comprising ultra-sonic generator (1), reactive tank (2), power supply (3), waste water tank (4), water exit container (5), under meter (6) and recycle pump (7), wherein the water outlet of waste water tank (4) serial connection under meter (6) back is connected with the water inlet of reactive tank (2), pick out the water inlet of water receptacle (5) and waste water tank (4) behind the water outlet serial connection recycle pump (7) of reactive tank (2) respectively, numerous the electrode units that structure is identical are set in the reactive tank (2), each electrode supply all comprises the first anode electrode that is arranged in order, cathode electrode, the second anode electrode constitutes, two anode electrodes connect the positive pole of power supply (3), and cathode electrode connects the negative electrode of power supply (3); Ultra-sonic generator (1) be arranged at reactive tank (2) the bottom, be affixed on the wall of reactive tank (2), the ultrasonic wave that ultra-sonic generator (1) produces is without coupling liquid, but directly acts on the interior phosphorus-containing wastewater of reactive tank (2) by the wall vibration of reactive tank (2).
5. ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treatment equipment according to claim 4 is characterized in that the water outlet of described reactive tank (2) and water inlet respectively are provided with a baffle plate (B).
6. ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treatment equipment according to claim 4, it is characterized in that described anode electrode adopts netted iron or reticulated aluminum or netted iron, aluminium, titanium composite anode, described cathode electrode adopts the copper mesh negative electrode, and the spacing of cathode electrode and anode electrode is 5mm~35mm.
7. ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater treating method according to claim 1 is characterized in that described reactive tank (2) contains ionogen Na
2SO
4Concentration be 0.1mmol/L~10mmol/L.
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CN2010100172264A CN101759249B (en) | 2010-01-05 | 2010-01-05 | Treating method and device of ultrasonic coupling electrochemical coagulation phosphorus-contained wastewater |
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CN101759249B CN101759249B (en) | 2012-01-11 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103951133A (en) * | 2014-05-16 | 2014-07-30 | 东莞市珠江海咸水淡化研究所 | Oil well wastewater zero-discharge treatment process and device |
CN104692494A (en) * | 2015-02-27 | 2015-06-10 | 江苏江大环境工程有限责任公司 | Electrolysis phosphorous removal device |
CN105251761A (en) * | 2015-11-10 | 2016-01-20 | 南京信息工程大学 | Ultrasonic degradation instrument and application thereof to aspect of soil organic pollutant degradation |
CN105417811A (en) * | 2016-01-13 | 2016-03-23 | 深圳市水务技术服务有限公司 | Tube type waste water treatment device and waste water treatment method |
CN109467229A (en) * | 2018-12-04 | 2019-03-15 | 湖南工程学院 | A kind of electrochemical process for treating for organic wastewater |
CN112875970A (en) * | 2021-01-18 | 2021-06-01 | 长沙工研院环保有限公司 | Ultrasonic alternating current flocculation phosphorus removal device and method |
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-
2010
- 2010-01-05 CN CN2010100172264A patent/CN101759249B/en not_active Expired - Fee Related
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103951133A (en) * | 2014-05-16 | 2014-07-30 | 东莞市珠江海咸水淡化研究所 | Oil well wastewater zero-discharge treatment process and device |
CN103951133B (en) * | 2014-05-16 | 2016-08-24 | 东莞市英硫净水服务有限公司 | A kind of oil-well wastewater Zero-discharge treating process and device |
CN104692494A (en) * | 2015-02-27 | 2015-06-10 | 江苏江大环境工程有限责任公司 | Electrolysis phosphorous removal device |
CN104692494B (en) * | 2015-02-27 | 2017-05-10 | 江苏江大环境工程有限责任公司 | Electrolysis phosphorous removal device |
CN105251761A (en) * | 2015-11-10 | 2016-01-20 | 南京信息工程大学 | Ultrasonic degradation instrument and application thereof to aspect of soil organic pollutant degradation |
CN105417811A (en) * | 2016-01-13 | 2016-03-23 | 深圳市水务技术服务有限公司 | Tube type waste water treatment device and waste water treatment method |
CN105417811B (en) * | 2016-01-13 | 2018-03-27 | 深圳市水务技术服务有限公司 | A kind of tubular type wastewater treatment equipment and processing method for waste water |
CN109467229A (en) * | 2018-12-04 | 2019-03-15 | 湖南工程学院 | A kind of electrochemical process for treating for organic wastewater |
CN109467229B (en) * | 2018-12-04 | 2021-05-25 | 湖南工程学院 | Electrochemical treatment method for organic wastewater |
CN112875970A (en) * | 2021-01-18 | 2021-06-01 | 长沙工研院环保有限公司 | Ultrasonic alternating current flocculation phosphorus removal device and method |
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