CN104192952A - Device capable of producing hydrogen peroxide and used for water treatment through electrolysis - Google Patents
Device capable of producing hydrogen peroxide and used for water treatment through electrolysis Download PDFInfo
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- CN104192952A CN104192952A CN201410511566.0A CN201410511566A CN104192952A CN 104192952 A CN104192952 A CN 104192952A CN 201410511566 A CN201410511566 A CN 201410511566A CN 104192952 A CN104192952 A CN 104192952A
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- hydrogen peroxide
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Abstract
A device capable of producing hydrogen peroxide and used for water treatment through electrolysis applies a direct current stabilized voltage power supply to supply power and comprises an electrolysis bath, wherein the electrolysis bath is composed of a catholyte chamber, an anolyte chamber and a Nafion film; the catholyte chamber and the anolyte chamber are separated by the Nafion film; a cathode and an anode are respectively and closely clung to the two sides of the Nafion film; the device is characterized in that at least three air pipelines right opposite to the cathode are arranged in the catholyte chamber; the other ends of the air pipelines are connected with an air pump; the bottom of the catholyte chamber is connected with a water pipeline; water flows out through the top of the catholyte chamber, flows to the bottom of the anolyte chamber through a pipeline, moves from bottom to top and flows out through the top of the anolyte chamber. The device realizes that the hydrogen peroxide is generated while water treatment is performed through electro-catalytic oxidation by hydrogen peroxide synchronously, so that the adding of hydrogen peroxide is reduced, the unit operation cost is effectively lowered, and further, a remarkable effect is achieved in the treatment of micro-polluted water and industrial wastewater and advanced treatment of wastewater.
Description
Technical field
The invention belongs to technical field of water pollution control, be specifically related to a kind of new device that adopts electrolysis process to realize water treatment.
Background technology
Along with the sustainable development of economic society, to inevitably produce various pollutents, and then bring water pollution problems in various degree, electro-catalytic oxidation technology is one of focus direction of current water treatment field research, no matter still aspect water treatment, all has huge potential utility value in sewage disposal.Hydrogen peroxide claims again hydrogen peroxide, and chemical formula is H
2o
2, itself be a kind of cleaning oxidizer, reaction product is oxygen G&W, electric H
2o
2catalyzed oxidation refers to and in electrolytic process, adds H
2o
2, H
2o
2under anode destruction, generate the extremely strong hydroxyl radical free radical of oxidisability pollutant oxidation is decomposed, what derive thus has Fenton technique etc.But due to the price comparison costliness of hydrogen peroxide own, should not transport for long-distance, unstable easy decomposition etc., in actual motion, processed in units cost is higher, thereby causes electric H
2o
2the range of application of catalyzed oxidation is extremely restricted, and is necessary very much therefore seek a kind of electrocatalysis oxidation apparatus that can produce hydrogen peroxide itself.
At present the production technique of hydrogen peroxide mainly contains electrolysis sulfuric acid process, anthraquinone, isopropanol oxidation method, hydrogen-oxygen direct synthesis technique, fuel cell method and oxygen cathode reduction method etc., and industrial production mainly adopts anthraquinone.It is a kind of newer technique that oxygen cathode reduction method is produced hydrogen peroxide, refers at negative electrode place and passes into oxygen or air, makes it obtain electronics and Hydrogen Peroxide as electron acceptor(EA).
Summary of the invention
In order to reduce electric H
2o
2the processed in units cost of catalyzed oxidation, expand its range of application, the present invention gets up catalytic oxidation and two kinds of technological incorporation of oxygen cathode reduction legal system hydrogen peroxide, provides a kind of novel electrocatalysis oxidation apparatus, i.e. a kind of self-produced hydrogen peroxide electrolytic water treatment device.
Object of the present invention is achieved through the following technical solutions:
A kind of self-produced hydrogen peroxide electrolytic water treatment device, the power supply of employing D.C. regulated power supply, core is electrolyzer, described electrolyzer is by catholyte compartment, anolyte compartment and Nafion film composition, catholyte compartment and anolyte compartment are separated by Nafion film, negative electrode and anode are close to Nafion film both sides, in described catholyte compartment, face at least 3 air lines of negative electrode setting, the air line the other end connects pneumatic pump, catholyte compartment bottom connects water pipe, former water is squeezed into by raw water pump, after flow out at catholyte compartment top, connect and enter anolyte compartment bottom by pipeline, finally flowed out by anolyte compartment top.
Described negative electrode adopts C/PTFE gas diffusion cathode, and anode adopts titanium net.
Described water pipe connects raw water pump.
Described air line end-to-end distance cathode surface 0.5cm.
The present invention can reach electric H
2o
2when catalyzed oxidation carries out water treatment, realize the synchronous generation of hydrogen peroxide, thereby saved adding of hydrogen peroxide, the unit's of effectively reducing running cost.And micro-polluted water and Industrial Wastewater Treatment and advanced treatment of wastewater are had to an effect of highly significant.
Brief description of the drawings
Fig. 1 is vertical view of the present invention.
Fig. 2 is front view of the present invention.
Embodiment
A kind of self-produced hydrogen peroxide electrolytic water treatment device, the power supply of employing D.C. regulated power supply, core is electrolyzer, described electrolyzer is by catholyte compartment 9, anolyte compartment 10 and Nafion film 7 form, catholyte compartment 9 and anolyte compartment 10 are separated by Nafion film 7, negative electrode 5 and anode 6 are close to Nafion film 7 both sides, in described catholyte compartment 9, face negative electrode 5 and arrange at least 3 air lines 2, the surperficial 0.5cm of described air line 2 end-to-end distance negative electrode 5, air line 2 the other ends connect pneumatic pump 1, water pipe 3 is entered by catholyte compartment 9 bottoms, through catholyte compartment 9 tops flow out laggard enter anolyte compartment 10 bottoms, finally flow out by anolyte compartment 10 tops.
Described negative electrode 5 adopts C/PTFE gas diffusion cathode, and anode 6 adopts titanium net.
Specific works method: first, the C/PTFE gas diffusion cathode 5 of making and anode 6 are close to Nafion film 7 both sides, device is installed.Open raw water pump 4, former water through water pipe 3 by catholyte compartment 9 bottoms access to plant from bottom to top, flow control view apparatus size and raw water quality and determine, after treating that former water is full of catholyte compartment 9 and anolyte compartment 10, open D.C. regulated power supply 8, using current density as controlling index, its size is determined with raw water quality, cleanup standard and raw water flow, is generally mA/cm
2rank; Then open pneumatic pump 1, pump into appropriate air in negative electrode 5 places, air flow quantity is generally mL/min rank, and object is to make C/PTFE gas diffusion cathode 5 in oxygen enrichment state, oxygen electron gain and Hydrogen Peroxide, because this negative electrode 5 has advantages of that specific surface area is large, therefore the hydrogen peroxide producing has higher concentration, is generally mg/L rank, simultaneously a part of organism also can electron gain and reduce, cause its structure and character to change, make it more oxidizable processing; The former aqueous solution that contains finite concentration hydrogen peroxide flows out from catholyte compartment 9 tops, enter anolyte compartment 10 by anolyte compartment 10 bottoms again, in anolyte compartment 10, hydrogen peroxide suffers that anode destroys and generation hydroxyl radical free radical, this free radical has extremely strong oxidisability, oxidation operation in former water is decomposed, thereby realize former water purification processing.
Control index of the present invention mainly contains three, i.e. current density, water flow and air flow quantity determined according to device size, raw water quality and cleanup standard for triadic relation and big or small control.
Claims (4)
1. a self-produced hydrogen peroxide electrolytic water treatment device, it is characterized in that: adopt D.C. regulated power supply power supply, comprise electrolyzer, described electrolyzer is made up of catholyte compartment (9), anolyte compartment (10) and Nafion film (7), catholyte compartment (9) and anolyte compartment (10) are separated by Nafion film (7), and negative electrode (5) and anode (6) are close to Nafion film (7) both sides; In described catholyte compartment (9), face negative electrode (5) at least 3 air lines (2) are set, air line (2) the other end connects pneumatic pump (1); Water pipe (3) is entered by catholyte compartment (9) bottom, enters anolyte compartment (10) bottom after the output of catholyte compartment (9) top, finally flows out by anolyte compartment (10) top.
2. the self-produced hydrogen peroxide electrolytic water treatment device of one according to claim 1, is characterized in that: described negative electrode (5) adopts C/PTFE gas diffusion cathode, and anode (6) adopts titanium net.
3. the self-produced hydrogen peroxide electrolytic water treatment device of one according to claim 1, is characterized in that: described water pipe (3) connects raw water pump (4).
4. the self-produced hydrogen peroxide electrolytic water treatment device of one according to claim 1, is characterized in that: the surperficial 0.5cm of described air line (2) end-to-end distance negative electrode (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410511566.0A CN104192952B (en) | 2014-09-29 | 2014-09-29 | A kind of self-produced hydrogen peroxide electrolytic water treatment device |
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|---|---|---|---|
| CN201410511566.0A CN104192952B (en) | 2014-09-29 | 2014-09-29 | A kind of self-produced hydrogen peroxide electrolytic water treatment device |
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| CN104192952A true CN104192952A (en) | 2014-12-10 |
| CN104192952B CN104192952B (en) | 2016-04-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115010301A (en) * | 2022-05-27 | 2022-09-06 | 中国科学院生态环境研究中心 | Experimental device for simulating in-situ remediation of organic matter polluted underground water |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1181977A (en) * | 1996-11-07 | 1998-05-20 | 本田技研工业株式会社 | Electrolytic functional water, its making method and device |
| JPH11189889A (en) * | 1997-12-25 | 1999-07-13 | Permelec Electrode Ltd | Production of hydrogen peroxide and alkali hydroxide |
| CN101434429A (en) * | 2008-12-12 | 2009-05-20 | 清华大学 | Apparatus and method for processing chlorine-containing organic wastewater by electrochemical reduction and oxidation |
-
2014
- 2014-09-29 CN CN201410511566.0A patent/CN104192952B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1181977A (en) * | 1996-11-07 | 1998-05-20 | 本田技研工业株式会社 | Electrolytic functional water, its making method and device |
| JPH11189889A (en) * | 1997-12-25 | 1999-07-13 | Permelec Electrode Ltd | Production of hydrogen peroxide and alkali hydroxide |
| CN101434429A (en) * | 2008-12-12 | 2009-05-20 | 清华大学 | Apparatus and method for processing chlorine-containing organic wastewater by electrochemical reduction and oxidation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115010301A (en) * | 2022-05-27 | 2022-09-06 | 中国科学院生态环境研究中心 | Experimental device for simulating in-situ remediation of organic matter polluted underground water |
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| CN104192952B (en) | 2016-04-06 |
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Effective date of registration: 20180105 Address after: 451450 Henan province Zhengzhou city Zhongmu Green Bo Cultural Industrial Park No. 9 Patentee after: China Electric Power Construction Group Huazhong Electric Power Design Research Institute Co., Ltd. Address before: 450007 Zhengzhou Zhongyuan Road, Henan, No. 212 Patentee before: Hennan Electric Power Survey & Design Institute |