CN201390683Y - Multistage electrolysis device for treating cyanide containing wastewater - Google Patents
Multistage electrolysis device for treating cyanide containing wastewater Download PDFInfo
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- CN201390683Y CN201390683Y CN200920302268U CN200920302268U CN201390683Y CN 201390683 Y CN201390683 Y CN 201390683Y CN 200920302268 U CN200920302268 U CN 200920302268U CN 200920302268 U CN200920302268 U CN 200920302268U CN 201390683 Y CN201390683 Y CN 201390683Y
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Abstract
The utility model relates to a cyanide containing wastewater treatment device, particularly to a multistage electrolysis device for treating cyanide containing wastewater. The device comprises a power supplying device and an electrolytic bath; a water inlet is arranged at one end of the bath body of the electrolytic bath, and a water outlet is arranged at the other end; a cover plate is arranged above the bath body of the electrolytic bath; an air exhaust pipe is arranged on the cover plate; the bath body of the electrolytic bath is divided into electrolytic chambers which are connected with each other through partition plates; a negative plate and a positive plate are arranged at two ends of each electrolytic chamber; the negative plates of the all the electrolytic chambers are in series connection, and the positive plates are also in series connection; gas is reserved between the partition plates and the cover plate; and the height of the water outlet is no less than that of the partition plates. The utility model mainly provides the multistage electrolysis device which can greatly reduce the content of contained cyanide in wastewater, improve electric current efficiency and energy consumption, recycle heavy metal in wastewater, treat cyanide containing wastewater, and solve the technical problems of not ideal cyanide containing wastewater treatment effect and great energy consumption existing in the prior art.
Description
Technical field
The utility model relates to a kind of wastewater treatment equipment that contains cyanogen, relates in particular to a kind of multistage electrolyzer that is used for Treatment of Cyanide-containing Wastewater.
Background technology
Electrolysis is electric current causes chemical transformation by material a process.Chemical transformation is that material loses or the process of electron gain (oxidation or reduction).Electrolytic process carries out in electrolyzer.Electrolyzer is to be made of two electrodes of yin, yang that are immersed in respectively in the solution that contains positive and negative ion.Electric current flows to negative potential (negative electrode), and positive ion positively charged in the solution is moved to negative electrode, and combines with electronics, becomes neutral element or molecule; Electronegative negative ion is moved to another electrode (anode), provides electronics, becomes neutral element or molecule.The form of the used main equipment electrolyzer of electrolysis can be divided into diaphragm sell and undivided cell two classes.
The electrolyzer that uses in the industry is made up of cell body, electrolytic solution, anode and negative electrode, and majority separates anolyte compartment and cathode compartment with barrier film.Difference by electrolytic solution is divided into aqueous solution electrolytic cell, fusion electrolysis groove and nonaqueous solution electrolysis groove three classes.When direct current passes through electrolyzer, oxidizing reaction takes place at anode and solution interface place, at negative electrode and solution interface place reduction reaction takes place, to produce desired product.Cell construction is optimized design, and choose reasonable electrode and diaphragm material are the keys that improves current efficiency, reduction bath voltage, saves energy consumption.
Electrolysis is widely used in the metallurgical industry, as extracting metal (electrolytic metallurgy) or purify metals (refining) from ore or compound, and deposits metal (plating) from solution.Sodium Metal 99.5 and chlorine dissolve sodium-chlor by electrolysis and generate; The aqueous solution of electrolytic sodium chloride then produces sodium hydroxide and chlorine.Brine electrolysis produces hydrogen and oxygen.It is H that the electrolysis of water is exactly under External Electrical Field water decomposition
2(g) and O
2(g).Electrolysis is a kind of means of very strong promotes oxidn reduction reaction, and many redox reactions of carrying out of being difficult to can realize by electrolysis.For example: the fused fluorochemical can be oxidized to simple substance fluoride on anode, the fused lithium salts is reduced into metallic lithium on negative electrode.Electrolytic industry has vital role in national economy, the refining of the smelting of many non-ferrous metals (as sodium, potassium, magnesium, aluminium etc.) and rare metal (as zirconium, hafnium etc.) and metal (as copper, zinc, lead etc.), the preparation of basic chemical industry product (as hydrogen, oxygen, caustic soda, Potcrate, hydrogen peroxide, oxalic acid dinitrile etc.), also have plating, electropolishing, anodic oxidation etc., all realize by electrolysis.In the Chinese patent: " a kind of electrolyzer (CN2688725Y) that is used for electrolytic synthesis alkyl hydroxylammonium salt ", it discloses a kind of electrolyzer, comprise electrolyzer, catholyte storage tank, anolyte storage tank, negative electrode header tank, anode header tank, wherein said electrolyzer is in series by unit groove, and electrolyzer places on the hold-down frame by bracing frame; Described unit groove comprises cathode compartment, anolyte compartment, negative electrode, anode, barrier film, catholyte import, anolyte import, anolyte outlet, catholyte outlet, cathode gas outlet, anodic gas outlet, unit groove cell wall; Described unit groove cell wall is the insulation sheet frame.This patent mainly adapts to the high alkyl hydroxylammonium salt of suitability for industrialized production purity, but the structure more complicated.
Produce a large amount of cyanide wastewater in the industry production such as plating, contain a large amount of toxic cyanogen class materials in the waste water, contain salts substances such as plurality of heavy metal simultaneously, ordinary method all is to adopt chemical Treatment cyanogen class material, as secondary broken cyanide etc., the chemical method complicated operation needs to consume a large amount of soda acid and other medicaments.
Summary of the invention
The utility model mainly provides a kind of can significantly the reduction and contains cyanogen content in the waste water, improves current efficiency, cuts down the consumption of energy, and reclaims the multistage electrolyzer of the Treatment of Cyanide-containing Wastewater of heavy metal in the waste water simultaneously; It is not ideal enough to solve existing in prior technology cyanide wastewater treatment effect, the big technical problem of energy consumption.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of multistage electrolyzer that is used for Treatment of Cyanide-containing Wastewater, comprise electric supply installation and electrolyzer, cell body one end at electrolyzer is provided with water-in, the other end is provided with water outlet, the top of the cell body of electrolyzer is provided with cover plate, on the cover board be provided with vapor pipe, in the cell body of described electrolyzer, be divided into interconnective tank room by dividing plate, the two ends of each tank room respectively are provided with positive plate of a negative plate, the negative plate of each tank room is connected mutually, positive plate is series connection mutually also, be provided with the gap between described dividing plate and the cover plate, the height of described water outlet is not less than the height of dividing plate.Utilize dividing plate that electrolyzer is divided into several tank rooms, waste water flows into first tank room by water-in, under the effect of electric current, anionic currents such as metal are to negative plate, and obtain electronics, become metal and cover on the negative plate heavy metal that reclaims after convenient on the negative electrode, carbonic acid gas and the nitrogen that cyanogen class material becomes under electrolytic effect also collects in the top and flows out from vapor pipe; Waste water enters next tank room by overflow, thereby constantly lowers the purpose that reaches pollutent in the reduction waste water by heavy metal in the multistage electrolysis wastewater and cyanogen pollutant concentration, and waste water is after treatment discharged from water outlet.Because waste water is handled step by step,, and between dividing plate and cover plate, leave the gap and make things convenient for overflow so water outlet will be higher than dividing plate.Of the present utility model simple in structure, because two ends of the present utility model products distribution is solid-state and gaseous state, therefore in tank room, do not need barrier film, remove barrier film and can increase the interior electrode surface area of unit volume as far as possible, can improve the production intensity of electrolyzer.The utility model is handled waste water by electrolysis repeatedly, make it satisfy emission standard, in addition cyanogen class material depositing the electroconductibility that has strengthened electrolysis wastewater, make current efficiency improve, and strengthen electrolyzer counterweight metal recovery rate, significantly reduced the cyanogen amount that contains in the waste water.
As preferably, the cell body of described electrolyzer and cover plate joint are provided with gasket.The setting of gasket makes electrolyzer form a sealing chamber, thus the diffusion of stopping cyanogen class material, the contaminative of reduction wastewater treatment.
As preferably, described negative plate is connected by buckle and cover plate are dismountable with positive plate.Dismountable connection, convenient after handling waste water, with negative plate by disassembling the recovery heavy metal on the cover plate, thereby improve the rate of recovery of metal and the utilization ratio of electrode.
As preferably, described water-in is positioned at the bottom of the cell body of electrolyzer.Water-in and water outlet are positioned at the two ends up and down of electrolyzer cell body, and water-in is positioned at low side and makes things convenient for intake pressure little.
As preferably, 3～7 tank rooms are arranged in the described electrolyzer, described vapor pipe is positioned at the top of first tank room and last tank room.The quantity of tank room can require to design according to waste water reclamation, and first tank room is that the gas of generation is maximum, and therefore a vapor pipe is set above it when handling in the waste water cyanogen content maximum.
As preferably, the distance between described dividing plate and the cover plate is at 100mm-200mm.
Therefore, a kind of multistage electrolyzer that is used for Treatment of Cyanide-containing Wastewater of the present utility model has following advantage: utilize dividing plate that electrolyzer is decomposed into several tank rooms, and removed barrier film in original tank room, not only structure is more simple, and removed barrier film and can increase electrode surface area in the unit volume as far as possible, can improve the production intensity of electrolyzer; Cyanide wastewater greatly reduces the cyanogen amount that contains in the waste water through the processing step by step of a plurality of tank rooms, and good waste water treatment effect has reclaimed a large amount of metals simultaneously and reduced energy consumption.
Description of drawings:
Fig. 1 is a kind of front view that is used for the multistage electrolyzer of Treatment of Cyanide-containing Wastewater of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the electrode scheme of installation.
Embodiment:
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
As illustrated in fig. 1 and 2, a kind of multistage electrolyzer that is used for Treatment of Cyanide-containing Wastewater comprises electrolyzer and power supply.The cell body 5 of electrolyzer is rectangle, and is fixed with cover plate 7 by screw 10 above cell body 5, is provided with sealing-ring 12 in cell body 5 and cover plate 7 joints, stops the diffusion of cyanogen class material.In cell body 5, electrolyzer is divided into four tank rooms 6 by three dividing plates 4, all fix a positive plate 2 and a negative plate 3 in each tank room 6 respectively, positive plate 2 and negative plate are by buckle 13 washable being fixed on (as shown in Figure 3) on the cover plate 7 of cover plate 7 bottom surfaces.Four tank room 6 four interior negative plates 3 are in series, and four positive plates 2 are in series.Three dividing plates 4 are contour, are provided with the gap between three dividing plates 4 and the cover plate 7, the gap apart from 150mm.Be provided with water-in 1 below the left side of electrolyzer cell body 5, water-in 1 is provided with water outlet 9 apart from bottom land 150mm above the right side of electrolyzer cell body 5, and the height of water outlet 9 is higher than the height of dividing plate 4.Vapor pipe 8 is installed on the cover plate 7 above first tank room 6 and the 4th tank room 6 is used to discharge carbonic acid gas and the nitrogen that cyanogen class material becomes under electrolytic effect.
When handling waste water, the waste water that is entered electrolyzer by water-in is that heavy metal content is between 6000-10000ppm in the waste water through spissated.Waste water at first enters first tank room, under the effect of electric current, anionic currents such as metal are to negative plate, and obtain electronics, become metal and cover negative plate, carbonic acid gas and the nitrogen that cyanogen class material becomes under electrolytic effect also collects in the top and flows out from vapor pipe; Waste water enters next tank room by overflow, carries out re-treatment again, and until to the 4th tank room after treatment, waste water is after treatment discharged from rising pipe 9; Negative plate 3 is dismountable, changes when surface metal acquires a certain degree.
Handle the heavy metal more than 95% in the recoverable electroplating cyanide wastewater of back through this device, and the cyanogen pollutant of degradable more than 70%, reduced the consumption of soda acid, reduced working cost.
Claims (7)
1. multistage electrolyzer that is used for Treatment of Cyanide-containing Wastewater, comprise electric supply installation and electrolyzer, cell body one end at electrolyzer is provided with water-in, the other end is provided with water outlet, it is characterized in that: the top of the cell body of electrolyzer is provided with cover plate, on the cover board be provided with vapor pipe, in the cell body of described electrolyzer, be divided into interconnective tank room by dividing plate, the two ends of each tank room respectively are provided with positive plate of a negative plate, the negative plate of each tank room is connected mutually, positive plate is series connection mutually also, is provided with the gap between described dividing plate and the cover plate, and the height of described water outlet is not less than the height of dividing plate.
2. a kind of multistage electrolyzer that is used for Treatment of Cyanide-containing Wastewater according to claim 1, it is characterized in that: the cell body of described electrolyzer and cover plate joint are provided with gasket.
3. a kind of multistage electrolyzer that is used for Treatment of Cyanide-containing Wastewater according to claim 1 and 2 is characterized in that: described negative plate is connected by buckle and cover plate are dismountable with positive plate.
4. according to claim 1 and 2 described a kind of multistage electrolyzers that are used for Treatment of Cyanide-containing Wastewater, it is characterized in that: described water-in is positioned at the bottom of the cell body of electrolyzer.
5. a kind of multistage electrolyzer that is used for Treatment of Cyanide-containing Wastewater according to claim 3, it is characterized in that: described water-in is positioned at the bottom of the cell body of electrolyzer.
6. a kind of multistage electrolyzer that is used for Treatment of Cyanide-containing Wastewater according to claim 1 and 2 is characterized in that: 3～7 tank rooms are arranged in the described electrolyzer, and described vapor pipe is positioned at the top of first tank room and last tank room.
7. a kind of multistage electrolyzer that is used for Treatment of Cyanide-containing Wastewater according to claim 1 and 2, it is characterized in that: the distance between described dividing plate and the cover plate is at 100mm-200mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920302268U CN201390683Y (en) | 2009-04-17 | 2009-04-17 | Multistage electrolysis device for treating cyanide containing wastewater |
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| CN200920302268U CN201390683Y (en) | 2009-04-17 | 2009-04-17 | Multistage electrolysis device for treating cyanide containing wastewater |
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| CN201390683Y true CN201390683Y (en) | 2010-01-27 |
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| CN200920302268U Expired - Fee Related CN201390683Y (en) | 2009-04-17 | 2009-04-17 | Multistage electrolysis device for treating cyanide containing wastewater |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781002A (en) * | 2010-03-10 | 2010-07-21 | 南京赛佳环保实业有限公司 | Sewage treatment equipment using expanded anode for electrolytically decomposing cyanide |
| CN102424457A (en) * | 2011-10-27 | 2012-04-25 | 湖南万容科技股份有限公司 | Treating system for industrial wastewater containing heavy metal and treating method thereof |
| CN105036449A (en) * | 2015-04-22 | 2015-11-11 | 南京大学 | Degradation-resistant nitrile compound industrial sewage treatment method |
| CN105084612A (en) * | 2015-08-03 | 2015-11-25 | 哈尔滨工业大学 | Efficient industrial waste heat conversion and self-power-supply dirt removal integrated system |
| CN105384217A (en) * | 2015-10-13 | 2016-03-09 | 上海丁香环境科技有限公司 | Electrochemical water treatment equipment |
| CN105502585A (en) * | 2016-01-30 | 2016-04-20 | 上海丁香环境科技有限公司 | Electrochemical water treatment system |
| CN105585078A (en) * | 2016-03-11 | 2016-05-18 | 上海丁香环境科技有限公司 | Water treatment tank device |
| CN107417016A (en) * | 2017-04-17 | 2017-12-01 | 深圳清华大学研究院 | A kind of cyanide wastewater advanced treatment system and method |
| CN107522267A (en) * | 2017-09-19 | 2017-12-29 | 华东师范大学 | A kind of multistage out-phase three-dimensional electrochemical reaction unit for waste water treatment |
| CN108328704A (en) * | 2018-04-20 | 2018-07-27 | 淄博格瑞水处理工程有限公司 | Plate and frame electrolysis unit |
| CN108977833A (en) * | 2017-05-31 | 2018-12-11 | 中国石油化工股份有限公司 | A kind of method of continuous electrochemical dissolution palladium powder |
| CN108977836A (en) * | 2017-05-31 | 2018-12-11 | 中国石油化工股份有限公司 | A kind of method of continuous electrochemical dissolution iridium powder |
| CN108977835A (en) * | 2017-05-31 | 2018-12-11 | 中国石油化工股份有限公司 | A kind of electrochemical dissolution process of platinum powder |
| CN108977832A (en) * | 2017-05-31 | 2018-12-11 | 中国石油化工股份有限公司 | A kind of method of continuous electrochemical dissolution rhodium powder |
| CN109205869A (en) * | 2018-10-25 | 2019-01-15 | 中科协创环境科技江苏有限公司 | A kind of purification device handling coal chemical industry high-concentration sewage |
| CN109354130A (en) * | 2018-11-22 | 2019-02-19 | 铜陵华兴精细化工股份有限公司 | A kind of electrolytic cell for capableing of multistage electrolysis |
| CN109809650A (en) * | 2019-03-29 | 2019-05-28 | 江苏京源环保股份有限公司 | A kind of cyanide wastewater electrocatalytic oxidation processing method and system |
| CN112979044A (en) * | 2021-03-08 | 2021-06-18 | 南昌航空大学 | Chemical nickel plating wastewater treatment and recovery unit |
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- 2009-04-17 CN CN200920302268U patent/CN201390683Y/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101781002A (en) * | 2010-03-10 | 2010-07-21 | 南京赛佳环保实业有限公司 | Sewage treatment equipment using expanded anode for electrolytically decomposing cyanide |
| CN102424457A (en) * | 2011-10-27 | 2012-04-25 | 湖南万容科技股份有限公司 | Treating system for industrial wastewater containing heavy metal and treating method thereof |
| CN105036449A (en) * | 2015-04-22 | 2015-11-11 | 南京大学 | Degradation-resistant nitrile compound industrial sewage treatment method |
| CN105084612A (en) * | 2015-08-03 | 2015-11-25 | 哈尔滨工业大学 | Efficient industrial waste heat conversion and self-power-supply dirt removal integrated system |
| CN105084612B (en) * | 2015-08-03 | 2017-06-13 | 哈尔滨工业大学 | A kind of industrial waste heat Efficient Conversion decontaminates integral system with self energizing |
| CN105384217A (en) * | 2015-10-13 | 2016-03-09 | 上海丁香环境科技有限公司 | Electrochemical water treatment equipment |
| CN105384217B (en) * | 2015-10-13 | 2018-03-09 | 上海丁香环境科技有限公司 | A kind of electro-chemical water processing equipment |
| CN105502585A (en) * | 2016-01-30 | 2016-04-20 | 上海丁香环境科技有限公司 | Electrochemical water treatment system |
| CN105585078A (en) * | 2016-03-11 | 2016-05-18 | 上海丁香环境科技有限公司 | Water treatment tank device |
| CN107417016A (en) * | 2017-04-17 | 2017-12-01 | 深圳清华大学研究院 | A kind of cyanide wastewater advanced treatment system and method |
| CN107417016B (en) * | 2017-04-17 | 2020-01-24 | 深圳清华大学研究院 | Advanced treatment system and method for cyanide-containing wastewater |
| CN108977833A (en) * | 2017-05-31 | 2018-12-11 | 中国石油化工股份有限公司 | A kind of method of continuous electrochemical dissolution palladium powder |
| CN108977836B (en) * | 2017-05-31 | 2020-07-24 | 中国石油化工股份有限公司 | Method for continuously and electrochemically dissolving iridium powder |
| CN108977836A (en) * | 2017-05-31 | 2018-12-11 | 中国石油化工股份有限公司 | A kind of method of continuous electrochemical dissolution iridium powder |
| CN108977835A (en) * | 2017-05-31 | 2018-12-11 | 中国石油化工股份有限公司 | A kind of electrochemical dissolution process of platinum powder |
| CN108977832A (en) * | 2017-05-31 | 2018-12-11 | 中国石油化工股份有限公司 | A kind of method of continuous electrochemical dissolution rhodium powder |
| CN108977835B (en) * | 2017-05-31 | 2020-07-24 | 中国石油化工股份有限公司 | Electrochemical dissolution method of platinum powder |
| CN107522267A (en) * | 2017-09-19 | 2017-12-29 | 华东师范大学 | A kind of multistage out-phase three-dimensional electrochemical reaction unit for waste water treatment |
| CN108328704B (en) * | 2018-04-20 | 2019-05-17 | 淄博格瑞水处理工程有限公司 | Plate and frame electrolysis unit |
| CN108328704A (en) * | 2018-04-20 | 2018-07-27 | 淄博格瑞水处理工程有限公司 | Plate and frame electrolysis unit |
| CN109205869A (en) * | 2018-10-25 | 2019-01-15 | 中科协创环境科技江苏有限公司 | A kind of purification device handling coal chemical industry high-concentration sewage |
| CN109354130A (en) * | 2018-11-22 | 2019-02-19 | 铜陵华兴精细化工股份有限公司 | A kind of electrolytic cell for capableing of multistage electrolysis |
| CN109809650A (en) * | 2019-03-29 | 2019-05-28 | 江苏京源环保股份有限公司 | A kind of cyanide wastewater electrocatalytic oxidation processing method and system |
| CN112979044A (en) * | 2021-03-08 | 2021-06-18 | 南昌航空大学 | Chemical nickel plating wastewater treatment and recovery unit |
| CN115140807A (en) * | 2022-06-15 | 2022-10-04 | 徐凯波 | Overflow type electrochemical water treatment equipment |
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Granted publication date: 20100127 Termination date: 20180417 |