CN2910910Y - Electrolysis treatment equipment for reuse of wastewater as resources - Google Patents
Electrolysis treatment equipment for reuse of wastewater as resources Download PDFInfo
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- CN2910910Y CN2910910Y CN 200620085469 CN200620085469U CN2910910Y CN 2910910 Y CN2910910 Y CN 2910910Y CN 200620085469 CN200620085469 CN 200620085469 CN 200620085469 U CN200620085469 U CN 200620085469U CN 2910910 Y CN2910910 Y CN 2910910Y
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- sewage recycling
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Abstract
A sewage reclamation treatment electrolysis device consists of electrolytic cell which forms zigzag sewage flow channel, and an array of electrodes which is arranged in the electrolytic cell and comprised by a positive pole and a negative pole. A plurality of array of electrode are arranged along the direction that sewage moves towards in the sewage flow channel of the electrolytic cell, each of whose negative pole surface forms continuously variable current density area. Using negative pole which has continuously variable current area can make each heavy metal ions which has electrode voltage and various electronic equivalences reduced, so the heavy metal ions can be removed easily and effectively. Using positive pole which is made by various materials to oxidize organic pollutants can transform the organic pollutants which is difficult to biodegrade by biology, such as various aromatic compounds, into easy biodegradation compound. A plurality of the array of electrodes realizes segmentation, classification, gradual decrement, and improves treatment effect. The device is simple in structure, high in efficiency, low in operation cost, and belongs to environment-friendly technology, especially is suitable for pre-treatment of the sewage.
Description
Technical field
The utility model relates to a kind of electrolyzer that is used for sewage disposal, particularly can remove the various heavy metal ion in the sewage effectively and the organism of bio-refractory can be converted into the sewage disposal electrolyzer of readily biodegradable compound.
Background technology
At present, for heavy metal ion, the organic pollutant that solves in life, the industrial sewage produces the problem of harm to environment, developed multiple treatment technology.Wherein, to handle the sewage contain heavy metal ion be early known to the Applied Electrochemistry method.In recent years, along with going deep into of organic electrochemistry and electrode materials research, electrochemical method begins to be applied to the processing of organic pollutant, and has obtained many important development.Studies show that, electrochemical method have adapt to wide, controllability is strong, flow process is brief, advantage such as easy to operate, is a kind of very potential and environment amenable technology, it is having extremely wide application prospect aspect pre-treatment of sewage and the advanced treatment.
In the method for organic pollutant, electrochemical oxidation process is comparatively ripe and commonly used method in many electrochemical treatment sewage.So-called electrochemical oxidation process is meant the method for utilizing the anodizing with catalytic activity to remove water pollutant.Specifically, be by electrode and the upright oxygenant oxidation oxide matter that taps into capable electron transport or utilize electrochemical reaction to produce of oxide, realize: (1) electrochemical degradation, promptly in electrolytic process, produce the material of strong oxidizing property, make the organic pollutant homogeneous phase or out of phase be degraded into carbonic acid gas and water by exhaustive oxidation.(2) electrochemical conversion promptly is converted into the organism of bio-refractory the fats compound of readily biodegradable by electrochemical method.
Though, disclosed at present electrochemical oxidation process differs from one another, but still coming with some shortcomings aspect industrial applications and the realization comprehensive treating process: at first, contain various heavy metal ion in the sewage usually, they have different electrochemical equivalent and reducing electrode current potential.Therefore, the complicated apparatus unless adopt costliness does not provide the electrochemical method that these heavy metal ion simply and effectively can be removed in the prior art.Secondly, do not provide the electrochemical method that simply and effectively to remove heavy metal ion simultaneously and the organism of bio-refractory is converted into the readily biodegradable compound in the prior art yet.
Summary of the invention
The purpose of this utility model provides a kind of sewage recycling processing electrolyzer that can remove the various heavy metal ion in the sewage effectively and the organic pollutant of bio-refractory can be converted into the readily biodegradable compound.
For this reason, the utility model adopts following technical scheme: sewage recycling is handled electrolyzer, comprises being used to accommodate the electrolyzer that sewage also carries out electrolysis treatment therein, forms zigzag drainage flow passage in the described electrolyzer; Be arranged on electrode group in the described electrolyzer, that form by anode and negative electrode; Be used for providing the supply unit of Faradaic current to described electrode group; And between described power supply and described electrode group, constitute the arrangements of electric connection that is electrically connected, it is characterized in that: independently be provided with a plurality of electrode groups along the drainage flow direction in the drainage flow passage of described electrolyzer, the cathode surface of each electrode group forms continually varying current density district.
Best, described negative electrode is arranged on the drainage flow passage mid-way of described electrolyzer, and described anode is arranged on the both sides of described negative electrode.
Best, described negative electrode has the plate electrode of waveform configuration for the surface.
Best, described negative electrode adopts stainless steel plate to make.
Best, described anode has the plate electrode of semi-cylindrical hill portion for the surface.
Best, described anode adopts a kind of the making in iron, graphite, plumbous oxide or the terne metal material.
Best, in the drainage flow passage of described electrolyzer, be provided with three electrode groups at least, and have at least the described anode of three electrode groups to adopt iron, graphite, plumbous oxide or terne metal material to make respectively along the drainage flow direction.
Best, described each electrode group is connected with control device, is used to control the Faradaic current that offers each electrode group.
Best, also have the aeration tank that is communicated with described electrolyzer, and in described aeration tank, be provided with filtration unit.
Sewage recycling provided by the utility model is handled electrolyzer and is had following beneficial effect:
At first, utilize negative electrode, can make the various heavy metal ion reduction that have different electropotentials and electrochemical equivalent in the sewage, thereby simply and effectively they be removed with continuous variable-current density region.
Secondly, the oxygenant oxidation organic pollutant that utilizes anode that differing materials makes and organic pollutant directly to carry out electron transport or utilize electrochemical reaction to produce, the organic pollutant of bio-refractory such as the phenyl ring of various aromatics are opened, thereby be converted into the readily biodegradable compound.
The 3rd, adopt zigzag drainage flow passage, and a plurality of electrode groups are set, and each electrode group independently controls Faradaic current, can realize segmentation, classification, decrement gradually, the raising treatment effect.
It is simple in structure that sewage recycling provided by the utility model is handled electrolyzer, the efficient height, and running cost is low.Sewage after the processing had both been removed various heavy metal ion, again deleterious organic pollutant was converted into the readily biodegradable compound, and had kept nutritive substance, helped recycling.This device is specially adapted to the pre-treatment of city domestic sewage, trade effluent.
The sewage recycling that the utility model provides is handled more detailed constitutional features of electrolyzer and beneficial effect, is further illustrated by following examples.
Description of drawings
Fig. 1 is the floor map that the sewage recycling that provides of the utility model is handled electrolyzer.
Fig. 2 is the cross-sectional schematic along A-A direction among Fig. 1.
Embodiment
With reference to Fig. 1, Fig. 2, sewage recycling is handled electrolyzer, comprising:
Electrolyzer 1 is used to accommodate sewage and carries out electrolysis treatment therein.Electrolyzer 1 is configured to zigzag drainage flow passage 11 by divider wall.Respectively there are a water-in 12 and a water outlet 13 in electrolyzer 1 two ends, and sewage enters from water-in 12, and each the electrode group in the drainage flow of the flowing through passage 11 flows out to aeration tank 7 from flow-guiding mouth, is sending from water outlet 13.
The electrode group is arranged in the drainage flow passage 12 of electrolyzer 1 and along the drainage flow direction and arranges.Present embodiment is provided with three independently electrode groups, yet can be provided with more groups according to actual needs.Each electrode group is made up of anode 2 and negative electrode 3, and negative electrode 3 is arranged on drainage flow passage 12 mid-ways, and anode 2 is set in parallel in the both sides of corresponding negative electrode 3.Being provided with highly of anode 2 is: the upper end exceeds 0.1 meter of liquid level, lower end from 0.3～0.5 meter of the bottom land of electrolyzer 1.Being provided with highly of negative electrode 3 is: upper end and liquid level maintain an equal level, the lower end is from 0.3～0.5 meter of the bottom land of electrolyzer 1.The negative electrode 3 of negative electrode 3 each electrode group all adopts stainless plate electrode, makes waviness, thereby forms stepless continuous variable-current density region arrogant and little from the crest to the trough.Anode 2 is surperficial plate electrode with semi-cylindrical hill portion, and the anode 2 of three electrode groups adopts iron, graphite, plumbous oxide material to make respectively.
Rectifier 4, being used for that external power is changed into direct current provides Faradaic current to each electrode group.
Control device 5 is connected between rectifier 4 and each electrode group, is used for controlling as required the Faradaic current size that offers each electrode group.
Lead 6 is used to connect rectifier 4, control device 5 and each electrode group.
Aeration tank 7 is communicated with the flow-guiding mouth of electrolyzer 1, is used for the water outlet after the electrolysis is for further processing.In aeration tank 7, be provided with coke and natural plant fiber material and constitute filtration unit 8, be used for filtering the suspended substance of water outlet.
Process to sewage recycling processing electrolyzer Treating Municipal Sewage is described below:
Municipal effluent has complicated composition usually, contains multiple metal ion, organic pollutant.Wherein, metal ion often comprises copper, cadmium, lead, chromium, nickel, mn ion etc., organic pollutant often comprises aromatics such as organochlorine, carbohydrate, lipid acid, alcohol, ketone, aldehyde, resin, phenol, protein etc., some is a bio-refractory, some readily biodegradableization, and some in addition can be directly as the nutritive substance of plant.The emphasis of handling is the organic pollutant at heavy metal ion and bio-refractory.
Sewage disposal is carried out at normal temperatures and pressures.Enter electrolyzer 1 from water-in 12 behind the elementary precipitation of municipal effluent process, the aeration, flow in drainage flow passage 11 with the flow velocity of 0.1～0.3 meter/per second, 36 ± 2 cubes m/mins flow, effluent flow rate can be set according to the needs of handling.Current efficiency is improved on the oxygen that separated out on anode 2 surfaces when drainage flow can be with electrolysis, the hydrogen band ionization electrode surface that separate out on negative electrode 3 surfaces.The average current density of negative electrode 3 is 0.05～0.2 ampere/every square decimeter.
It must be noted that, the electrolytic current density of each electrode group is the content according to various heavy metal ion, organic pollutant in the sewage, the content that national standard allows in the discharge, and the electrochemical equivalent that needs the various heavy metal ion of removal, and consider current efficiency, electrode property, collocation form etc., COMPREHENSIVE CALCULATING goes out the result, offers each electrode group by control device again.By adopting devices such as known online detection, feedback can realize the on-line Control of closed loop, to produce best effect and to reach energy-saving and cost-reducing.
During each electrode group in drainage flow passage 11 of effluent stream, multiple electrochemical reaction takes place in the electrolyzer 1.Comprise following exemplify but the reaction that is not limited to, as reduction reaction: at negative electrode 3 continuous variable-current density regions, the various heavy metal ion reduction of the different electrochemical equivalent in the sewage.Oxidizing reaction: anode 2 directly or indirectly produces the hydroxyl radical free radicals (OH) with strong oxidation activity under the extra electric field effect, the organic pollutant of bio-refractory is converted into the readily biodegradable compound, as makes various aromatics realize open loops.And flocculation reaction, air supporting reaction etc.These processes all are known, can be with reference to relevant technical information.
Sewage flows into aeration tank 7 aerations by flow-guiding mouth and handles after handling through electrolyzer 1, and installs 8 after filtration and filter out suspended substance, flows out from water outlet 13
As a preferred embodiment: adopt above-mentioned sewage recycling to handle electrolyzer the sewage of COD content 150mg/L～500mg/L is carried out pre-treatment, processing rate can reach 70%.At current efficiency 35～40% o'clock, handle every cubic metre of sewage power consumption less than 0.3 kilowatt, the treatment time only needs 0.2～0.3 minute, and greatly save time and improve plant efficiency, but sewage biodegrade and recycling after the processing.
The sewage recycling that more than combining embodiment provides the utility model is handled electrolyzer and is illustrated, but this does not constitute restriction of the present utility model.Any modifications and variations of having done under same design also all belong to the scope that the utility model is protected.
Claims (9)
1, sewage recycling is handled electrolyzer, comprises being used to accommodate the electrolyzer that sewage also carries out electrolysis treatment therein, forms zigzag drainage flow passage in the described electrolyzer; Be arranged on electrode group in the described electrolyzer, that form by anode and negative electrode; Be used for providing the supply unit of Faradaic current to described electrode group; And between described power supply and described electrode group, constitute the arrangements of electric connection that is electrically connected, it is characterized in that: independently be provided with a plurality of electrode groups along the drainage flow direction in the drainage flow passage of described electrolyzer, the cathode surface of each electrode group forms continually varying current density district.
2, sewage recycling according to claim 1 is handled electrolyzer, and it is characterized in that: described negative electrode is arranged in the middle of the drainage flow passage of described electrolyzer, and described anode is arranged on the both sides of described negative electrode.
3, sewage recycling according to claim 1 and 2 is handled electrolyzer, it is characterized in that: described negative electrode has the plate electrode of waveform configuration for the surface.
4, sewage recycling according to claim 3 is handled electrolyzer, it is characterized in that: described negative electrode adopts stainless steel plate to make.
5, sewage recycling according to claim 1 and 2 is handled electrolyzer, it is characterized in that: described anode has the plate electrode of semi-cylindrical hill portion for the surface.
6, sewage recycling according to claim 5 is handled electrolyzer, it is characterized in that: described anode adopts a kind of the making in iron, graphite, plumbous oxide or the terne metal material.
7, sewage recycling according to claim 1 is handled electrolyzer, it is characterized in that: in the drainage flow passage of described electrolyzer, be provided with three electrode groups at least, and have at least the described anode of three electrode groups to adopt iron, graphite, plumbous oxide or terne metal material to make respectively along the drainage flow direction.
8, sewage recycling according to claim 1 is handled electrolyzer, and it is characterized in that: described each electrode group is connected with the control device that is used to control Faradaic current.
9, sewage recycling according to claim 1 is handled electrolyzer, it is characterized in that: also have the aeration tank that is communicated with described electrolyzer, and be provided with filtration unit in described aeration tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620085469 CN2910910Y (en) | 2006-06-07 | 2006-06-07 | Electrolysis treatment equipment for reuse of wastewater as resources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620085469 CN2910910Y (en) | 2006-06-07 | 2006-06-07 | Electrolysis treatment equipment for reuse of wastewater as resources |
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| CN2910910Y true CN2910910Y (en) | 2007-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620085469 Expired - Fee Related CN2910910Y (en) | 2006-06-07 | 2006-06-07 | Electrolysis treatment equipment for reuse of wastewater as resources |
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| CN (1) | CN2910910Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091710A (en) * | 2010-12-10 | 2011-06-15 | 重庆大学 | Method and device for removing heavy metal pollutants in fly ash |
| CN103592397A (en) * | 2013-11-06 | 2014-02-19 | 安徽皖仪科技股份有限公司 | Pretreatment device for heavy metal ion-contained sample |
| CN104817141A (en) * | 2015-04-22 | 2015-08-05 | 南京大学 | Treatment method for acetonitrile waste water in production process of perfluor ketone |
| CN106396026A (en) * | 2016-12-01 | 2017-02-15 | 东莞理工学院 | Electrocatalysis microarray system for treating black and odorous water body |
| CN106542617A (en) * | 2017-01-23 | 2017-03-29 | 中夏新能源（上海）有限公司 | A kind of sewage disposal machine people |
| CN107188276A (en) * | 2017-06-22 | 2017-09-22 | 广东益诺欧环保股份有限公司 | A kind of composite electrochemical catalytic oxidizing equipment |
| CN111018057A (en) * | 2020-01-03 | 2020-04-17 | 南京环保产业创新中心有限公司 | Reductive oxidation electrochemical sewage treatment method |
| CN111204852A (en) * | 2020-01-17 | 2020-05-29 | 四川农业大学 | Livestock and poultry wastewater tail water treatment system |
-
2006
- 2006-06-07 CN CN 200620085469 patent/CN2910910Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091710A (en) * | 2010-12-10 | 2011-06-15 | 重庆大学 | Method and device for removing heavy metal pollutants in fly ash |
| CN103592397A (en) * | 2013-11-06 | 2014-02-19 | 安徽皖仪科技股份有限公司 | Pretreatment device for heavy metal ion-contained sample |
| CN104817141A (en) * | 2015-04-22 | 2015-08-05 | 南京大学 | Treatment method for acetonitrile waste water in production process of perfluor ketone |
| CN106396026A (en) * | 2016-12-01 | 2017-02-15 | 东莞理工学院 | Electrocatalysis microarray system for treating black and odorous water body |
| CN106396026B (en) * | 2016-12-01 | 2019-06-04 | 东莞理工学院 | A kind of electro-catalysis microarray system for administering black and odorous water |
| CN106542617A (en) * | 2017-01-23 | 2017-03-29 | 中夏新能源（上海）有限公司 | A kind of sewage disposal machine people |
| CN107188276A (en) * | 2017-06-22 | 2017-09-22 | 广东益诺欧环保股份有限公司 | A kind of composite electrochemical catalytic oxidizing equipment |
| CN111018057A (en) * | 2020-01-03 | 2020-04-17 | 南京环保产业创新中心有限公司 | Reductive oxidation electrochemical sewage treatment method |
| CN111204852A (en) * | 2020-01-17 | 2020-05-29 | 四川农业大学 | Livestock and poultry wastewater tail water treatment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FUJIAN LAND OF ECOLOGICAL TECHNOLOGY INDUSTRIAL C Free format text: FORMER OWNER: DING RONGWU Effective date: 20080411 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080411 Address after: Fengze District of Quanzhou city of Fujian province Dongtu Street Xinhua garden building C room 1201, zip code: 362020 Patentee after: Fujian Earth Ecological Technology Industry Co., Ltd. Address before: Licheng District of Quanzhou City, Fujian Province, Xiang Gong Xiang Zhuang CuO Cheng C No. 20, zip code: 362000 Patentee before: Ding Rongwu |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070613 Termination date: 20100607 |