CN108862484A - A kind of device of electric flocculation processing difficult for biological degradation industrial wastewater - Google Patents
A kind of device of electric flocculation processing difficult for biological degradation industrial wastewater Download PDFInfo
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- CN108862484A CN108862484A CN201810518123.2A CN201810518123A CN108862484A CN 108862484 A CN108862484 A CN 108862484A CN 201810518123 A CN201810518123 A CN 201810518123A CN 108862484 A CN108862484 A CN 108862484A
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- rotary anode
- industrial wastewater
- electric flocculation
- biological degradation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a kind of devices of electric flocculation processing difficult for biological degradation industrial wastewater, belong to electrochemical technology field.When main structure includes vertical settling slot, rotating electric machine, rotary anode and Porous hollow cylindrical cathode, operation, waste water is flowed into from upper end water inlet, startup power supply, and yin-yang the two poles of the earth, which are powered, is reacted, and rotating electric machine drives anode rotation.The rotary anode makes waste water be constantly in turbulence state in reaction, effectively slows down the passivation and concentration polarization phenomenon of polar board surface；The cathode promotes the generation rate and quantity of the nascent hydrogen of strongly adherent due to large surface area, and the pollutant adhered in waste water floats together.The electric flocculation device is suitable for handling the industrial wastewater of any ingredient, realizes application of the electric flocculation technique in industrialization.
Description
Technical field
The invention belongs to electrochemical technology field more particularly to a kind of dresses of electric flocculation processing difficult for biological degradation industrial wastewater
Set and the device the Industrial Wastewater Treatment of difficult for biological degradation application.
Background technique
The industrial wastewater of difficult for biological degradation, COD is high, biodegradability is poor, content of beary metal is high, past contact with
High toxicity, high chroma and very big peculiar smell.At present for such waste water using relatively broad processing technique mainly active charcoal or
Kieselguhr adsorption technology, reverse osmosis membrane technology and wet oxidation technology etc..But these technologies there are technique easily cause secondary pollution,
The problems such as equipment cleaning is troublesome, process structure is complicated, equipment investment is costly, so that water treatment effect is bad, it is difficult to reach
Discharge standard.
Electric flocculation technique is under DC Electric Field, and the soluble metals such as iron, aluminium are electrolysed together production as sacrificing positive pole
Raw hydroxyl reaction generates hydroxo complex and hydroxide etc., the pollutant in sewage is adsorbed, collection is rolled up, net is caught,
The electrically series reactions such as neutralization；The extremely strong nascent hydrogen of adhesiveness, adherency sewage small molecular pollution are generated on cathode simultaneously
Composition granule floats, to realize the removal to Pollutants in Wastewater jointly.
In reactive tank, this reaction unit was reacting dense arrangement pole plate in a rectangular parallelepiped shape in traditional electric flocculation technique
Cheng Zhong, due to requiring electrolyte ion motion fast, the mode of dense arrangement makes mass transfer effect uneven, leads to pole plate table
Face passivation and concentration polarization degree are serious, so causing, power consumption is big, and polar plate loss is fast, and the current utilization rate of reaction unit is not
It is high.Therefore by the construction and arrangement mode of pole plate in transformation electric flocculation device, while considering through waste water during the reaction
It is in always turbulence state, to reduce operating cost, it will there are good market Utilization prospects.
Summary of the invention
The object of the present invention is to provide a kind of devices of electric flocculation processing difficult for biological degradation industrial wastewater, are mainly used for
The pole plate passivation for solving traditional handicraft is serious, concentration polarization phenomenon caused by mass transfer is uneven, realizes the lower efficient process of low cost
The industrial wastewater of difficult for biological degradation.
The technical solution adopted by the present invention is that a kind of device of electric flocculation processing difficult for biological degradation industrial wastewater, the device by
Vertical settling slot (1), rotating electric machine (10), rotary anode (2), Porous hollow cylindrical cathode (3), rotary anode shaft fixation
Blue (11), rotary anode support bearing at bottom (12), cathode bottom hollow support pallet (14), bottom bearing support pallet
(13), rotary anode conductive column (8), cathode conductive column (9), water inlet (4), monitoring thief hatch (5), water outlet (6) and blowdown
Mouth (7) composition.
The column upper end and bottom end of vertical settling slot cavity body (1) are equipped with water inlet (4) and water outlet (6), and in the middle
Equipped with a monitoring thief hatch (5), the coniform bottom end of vertical settling slot cavity body is equipped with sewage draining exit (7)；The rotary anode (2)
Shaft top is fixed by rotary anode shaft mounting flange (11), and the bottom of the rotary anode (2) is by rotary anode bottom
Spring bearing (12) is fixed, under rotary anode shaft mounting flange (11) and rotary anode support bearing at bottom (12) collective effect
The rotary anode (2) is set vertically to stand on the intracorporal center of vertical settling vallecular cavity；Porous hollow cylindrical cathode (3) bottom is placed in
On cathode bottom hollow support pallet (14), Porous hollow cylindrical cathode (3) is bonded with the insulation inner wall of vertical settling slot cavity body；
The same rotation electrode in shaft top (10) of the rotary anode (2) connects；Rotary anode shaft mounting flange (11) top
Surface is equipped with rotary anode conductive column (8)；Porous hollow cylindrical cathode top is equipped with cathode conductive column (9), and is pierced by rotation
Turn anode shaft mounting flange (11) to be exposed to outside vertical settling groove top portion.
Preferably, the shaft of the rotary anode (2) is equipped with the equidistant rotating rod of multiple groups, and every group of rotating rod quantity is
2~8；Preferably, every group of rotating rod quantity is 4.
Preferably, the Porous hollow cylindrical cathode (3) is equipped with equidistant symmetrical aperture, and aperture is 2~5mm；It is preferred that
Ground, aperture 5mm.
Preferably, the rotary anode support bearing at bottom (12), cathode bottom hollow support pallet (14), bottom bearing
Supporting pallet (13) is insulator.
Preferably, material is stainless steel, rest part material selection at the top of the rotary anode shaft mounting flange (11)
Insulating materials.
Preferably, bottom bearing support pallet (14) is equipped with the aperture that equidistant, aperture is 8mm.
Preferably, material selected by the rotary anode (2) is iron, aluminium or zinc.
Preferably, material selected by the Porous hollow cylindrical cathode (3) is iron, aluminium, zinc, titanium, stainless steel or graphite electrode.
Preferably, the rotary anode (2) and Porous hollow cylindrical cathode (3) spacing are 5~10mm, it is preferable that therebetween
Away from for 10mm.
A kind of device of electric flocculation processing difficult for biological degradation industrial wastewater of the present invention, has the characteristics that：(1) it revolves
Turn the blender that anode is equipped with instead of traditional electric flocculation process requirement, makes waste water be constantly in turbulence-like during the reaction
The phenomenon that state improves electron transport rate, improves anode surface passivation and concentration polarization, improve electrode uses the longevity
Life；(2) rotary anode improves current utilization rate, so that better processing effect due to having bigger specific surface area；(3) institute
The Porous hollow cylindrical cathode stated substantially increases the specific surface area of electrode, and bubble, which generates quantity, to be increased, and has driven bubble
Ascent rate.
A kind of device of electric flocculation processing difficult for biological degradation industrial wastewater of the present invention, be adapted to influent quality and
Water significantly fluctuates impact, suitable for being removed while multiple pollutant, and treated water stabilization, industrialized
There is good prospect using upper.
Detailed description of the invention
Fig. 1 schematic structural view of the invention；
Fig. 2 rotary anode structure schematic diagram of the present invention；
Fig. 3 Porous hollow cylindrical cathode structural schematic diagram of the present invention；
Specific embodiment
Next step detailed description is carried out to the present invention with reference to the accompanying drawing.Those skilled in the art it should be appreciated that this
Locate the case study on implementation, is used merely to explain the present invention, should not therefore limit the scope of the invention.
Shown in Figure 1, the present invention provides a kind of devices of electric flocculation processing difficult for biological degradation industrial wastewater, including stand
Formula subsider (1), rotating electric machine (10), rotary anode (2), Porous hollow cylindrical cathode (3), rotary anode shaft mounting flange
(11), rotary anode support bearing at bottom (12), cathode bottom hollow support pallet (14), bottom bearing support pallet (13),
Rotary anode conductive column (8), cathode conductive column (9), water inlet (4), monitoring thief hatch (5), water outlet (6) and sewage draining exit (7).
Ginseng as shown in figure 1 to 3, the column upper end and bottom end of the vertical settling slot cavity body (1) be equipped with water inlet (4) and
Water outlet (6), and it is equipped with a monitoring thief hatch (5) in the middle, the coniform bottom end of vertical settling slot cavity body is equipped with sewage draining exit
(7)；The shaft top of the rotary anode (2) is fixed by rotary anode shaft mounting flange (11), and the anode bottom is by rotating
Anode support bearing at bottom (12) is fixed, so that the anode is vertically stood on the intracorporal center of vertical settling vallecular cavity under collective effect；Institute
Porous hollow cylindrical cathode (3) bottom is stated to be placed on cathode bottom hollow support pallet (14), it is exhausted with vertical settling slot cavity body
The fitting of edge inner wall；The same rotation electrode in shaft top (10) of the rotary anode (2) connects；The rotary anode shaft fixation
Blue (11) top end surface is equipped with rotary anode conductive column (8)；Porous hollow cylindrical cathode top is equipped with cathode conductive column
(9), it and is pierced by rotary anode shaft mounting flange (11) and is exposed to outside vertical settling groove top portion.
The shaft of the rotary anode (2) is equipped with the equidistant rotating rod of multiple groups, and every group of rotating rod quantity is 2~8；
Preferably, every group of rotating rod quantity is 4.
The Porous hollow cylindrical cathode (3) is equipped with equidistant symmetrical aperture, and aperture is 2~5mm；Preferably, aperture
For 5mm.
The rotary anode support bearing at bottom (12), cathode bottom hollow support pallet (14), bottom bearing supporting bracket
Disk (13) is insulator.
Material is stainless steel, rest part material selection insulation material at the top of the rotary anode shaft mounting flange (11)
Material.
Bottom bearing support pallet (14) is equipped with the aperture that equidistant, aperture is 8mm.
Material selected by the rotary anode (2) is iron, aluminium or zinc.
Material selected by the Porous hollow cylindrical cathode (3) is iron, aluminium, zinc, titanium, stainless steel or graphite electrode.
The rotary anode (2) and Porous hollow cylindrical cathode (3) spacing are 5~10mm, it is preferable that its spacing is
10mm。
The present invention obtains in the pilot plant test for the rubbish condensed water that landfill leachate generates after reverse osmosis technology
Good removal efficiency.
The rubbish concentrate of certain destructor plant offer is saved to Mr. Yu, water quality is that COD concentration is 6622mg/l, ammonia nitrogen concentration
For 3034mg/l, total phosphorus concentration 169mg/l, hexavalent chromium concentration 310mg/l.First will water inlet ph value be adjusted to 8.0~
8.5, the waste water is injected from vertical settling pond upper end water inlet, is then switched on DC voltage-stabilizing with the flow velocity of 30L/h with peristaltic pump
Power supply adjusts power device and through rotating anode current density to be 16.32mA/cm2, rotating anode revolving speed holding
The concentration of COD falls below 1053mg/l after 250rpm, electrolysis 30min, and removal rate has reached 84.10%, and ammonia nitrogen concentration is fallen below
533.6mg/l, removal rate have reached 82.41%, and total phosphorus concentration falls below 1.2mg/l, and removal rate has reached 99.29%, sexavalence
Chromium concn falls below 1.5mg/l, and removal rate has reached 99.52%.
Therefore the present invention has efficient removal for the industrial wastewater of difficult for biological degradation, and no longer needs to add any chemistry
Reagent, pole plate is easy to operate without often cleaning, that is, reduces process operation cost, and not will cause secondary pollution, realize
Low-cost high-efficiency in industrial application.
The present apparatus is the industrial wastewater suitable for any one difficult for biological degradation, is not limited to give up described in example
Water.
Claims (9)
1. a kind of device of electric flocculation processing difficult for biological degradation industrial wastewater, it is characterised in that：The device is by vertical settling slot
(1), rotating electric machine (10), rotary anode (2), Porous hollow cylindrical cathode (3), rotary anode shaft mounting flange (11), rotation
Turn anode support bearing at bottom (12), cathode bottom hollow support pallet (14), bottom bearing support pallet (13), rotary anode
Conductive column (8), cathode conductive column (9), water inlet (4), monitoring thief hatch (5), water outlet (6) and sewage draining exit (7) composition；
The column upper end and bottom end of vertical settling slot cavity body (1) are equipped with water inlet (4) and water outlet (6), and are equipped in the middle
One monitoring thief hatch (5), the coniform bottom end of vertical settling slot cavity body are equipped with sewage draining exit (7)；The shaft of the rotary anode (2)
Top is fixed by rotary anode shaft mounting flange (11), and the bottom of the rotary anode (2) is supported by rotary anode bottom
Bearing (12) is fixed, makes this under rotary anode shaft mounting flange (11) and rotary anode support bearing at bottom (12) collective effect
Rotary anode (2) vertically stands on the intracorporal center of vertical settling vallecular cavity；Porous hollow cylindrical cathode (3) bottom is placed in cathode
Lower hollow supports on pallet (14), and Porous hollow cylindrical cathode (3) is bonded with the insulation inner wall of vertical settling slot cavity body；It is described
The same rotation electrode in shaft top (10) of rotary anode (2) connects；Rotary anode shaft mounting flange (11) top end surface
Equipped with rotary anode conductive column (8)；Porous hollow cylindrical cathode top is equipped with cathode conductive column (9), and is pierced by rotation sun
Pole shaft mounting flange (11) is exposed to outside vertical settling groove top portion.
2. a kind of device of electric flocculation processing difficult for biological degradation industrial wastewater according to claim 1, it is characterised in that：Institute
The shaft for stating rotary anode (2) is equipped with the equidistant rotating rod of multiple groups, and every group of rotating rod quantity is 2~8.
3. a kind of device of electric flocculation processing difficult for biological degradation industrial wastewater according to claim 1, it is characterised in that：Institute
It states Porous hollow cylindrical cathode (3) and is equipped with equidistant symmetrical aperture, aperture is 2~5mm.
4. a kind of device of electric flocculation processing difficult for biological degradation industrial wastewater according to claim 1, it is characterised in that：Institute
State rotary anode support bearing at bottom (12), cathode bottom hollow support pallet (14), bottom bearing support pallet (13) be
Insulator.
5. a kind of device of electric flocculation processing difficult for biological degradation industrial wastewater according to claim 1, it is characterised in that：Institute
Stating material at the top of rotary anode shaft mounting flange (11) is stainless steel, rest part material selection insulating materials.
6. a kind of device of electric flocculation processing difficult for biological degradation industrial wastewater according to claim 1, it is characterised in that：Institute
It states bottom bearing support pallet (14) and is equipped with the aperture that equidistant, aperture is 8mm.
7. a kind of device of electric flocculation processing difficult for biological degradation industrial wastewater according to claim 1, it is characterised in that：Institute
Stating material selected by rotary anode (2) is iron, aluminium or zinc.
8. a kind of device of electric flocculation processing difficult for biological degradation industrial wastewater according to claim 1, it is characterised in that：Institute
Stating material selected by Porous hollow cylindrical cathode (3) is iron, aluminium, zinc, titanium, stainless steel or graphite electrode.
9. a kind of device of electric flocculation processing difficult for biological degradation industrial wastewater according to claim 1, it is characterised in that：Institute
It states rotary anode (2) and Porous hollow cylindrical cathode (3) spacing is 5~10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810518123.2A CN108862484A (en) | 2018-05-27 | 2018-05-27 | A kind of device of electric flocculation processing difficult for biological degradation industrial wastewater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810518123.2A CN108862484A (en) | 2018-05-27 | 2018-05-27 | A kind of device of electric flocculation processing difficult for biological degradation industrial wastewater |
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| CN108862484A true CN108862484A (en) | 2018-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810518123.2A Pending CN108862484A (en) | 2018-05-27 | 2018-05-27 | A kind of device of electric flocculation processing difficult for biological degradation industrial wastewater |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110818190A (en) * | 2019-11-20 | 2020-02-21 | 杭州传一科技有限公司 | Multi-electrode electrocoagulation-anaerobic microorganism electroplating comprehensive wastewater treatment device and method and heavy metal recovery method |
| CN111362373A (en) * | 2020-03-03 | 2020-07-03 | 清华大学 | Electric flocculation device and electric flocculation water treatment device |
| CN111762932A (en) * | 2020-07-21 | 2020-10-13 | 赵宫鼎 | Electrode plate assembly and electric flocculation sewage treatment device |
| CN111792707A (en) * | 2020-07-17 | 2020-10-20 | 河海大学 | Rotary electrode reactor and operation process thereof |
| CN114835207A (en) * | 2022-05-12 | 2022-08-02 | 中国科学院生态环境研究中心 | Polar plate modification method for alleviating polar plate passivation in electrolytic flocculation and application |
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| CN1172867A (en) * | 1996-08-01 | 1998-02-11 | 刘正立 | Water pressure osmotic membrane electrolytic water device |
| CN205133206U (en) * | 2015-11-17 | 2016-04-06 | 中国科学院新疆理化技术研究所 | Carousel electricity flocculation water treatment facilities |
| CN107840416A (en) * | 2016-09-21 | 2018-03-27 | 北京化工大学 | A kind of rotation electrode tubular electrochemical reactor and its application |
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2018
- 2018-05-27 CN CN201810518123.2A patent/CN108862484A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172867A (en) * | 1996-08-01 | 1998-02-11 | 刘正立 | Water pressure osmotic membrane electrolytic water device |
| CN205133206U (en) * | 2015-11-17 | 2016-04-06 | 中国科学院新疆理化技术研究所 | Carousel electricity flocculation water treatment facilities |
| CN107840416A (en) * | 2016-09-21 | 2018-03-27 | 北京化工大学 | A kind of rotation electrode tubular electrochemical reactor and its application |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110818190A (en) * | 2019-11-20 | 2020-02-21 | 杭州传一科技有限公司 | Multi-electrode electrocoagulation-anaerobic microorganism electroplating comprehensive wastewater treatment device and method and heavy metal recovery method |
| CN110818190B (en) * | 2019-11-20 | 2021-11-09 | 浙江致远环境科技有限公司 | Multi-electrode electrocoagulation-anaerobic microorganism electroplating comprehensive wastewater treatment device and method and heavy metal recovery method |
| CN111362373A (en) * | 2020-03-03 | 2020-07-03 | 清华大学 | Electric flocculation device and electric flocculation water treatment device |
| CN111362373B (en) * | 2020-03-03 | 2021-07-27 | 清华大学 | Electric flocculation device and electric flocculation water treatment device |
| CN111792707A (en) * | 2020-07-17 | 2020-10-20 | 河海大学 | Rotary electrode reactor and operation process thereof |
| CN111762932A (en) * | 2020-07-21 | 2020-10-13 | 赵宫鼎 | Electrode plate assembly and electric flocculation sewage treatment device |
| CN114835207A (en) * | 2022-05-12 | 2022-08-02 | 中国科学院生态环境研究中心 | Polar plate modification method for alleviating polar plate passivation in electrolytic flocculation and application |
| CN114835207B (en) * | 2022-05-12 | 2023-06-06 | 中国科学院生态环境研究中心 | Polar plate modification method for relieving polar plate passivation in electric flocculation and application |
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Application publication date: 20181123 |