CN101462784B - Electrocatalysis oxidation apparatus - Google Patents

Electrocatalysis oxidation apparatus Download PDF

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Publication number
CN101462784B
CN101462784B CN2008101201746A CN200810120174A CN101462784B CN 101462784 B CN101462784 B CN 101462784B CN 2008101201746 A CN2008101201746 A CN 2008101201746A CN 200810120174 A CN200810120174 A CN 200810120174A CN 101462784 B CN101462784 B CN 101462784B
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pipe
valve
container cavity
water
aerator
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CN101462784A (en
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斯志光
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Zhuji Tianyou Environmental Science And Technology Ltd
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Zhuji Tianyou Environmental Science And Technology Ltd
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Abstract

The invention relates to an electrocatalytic oxidation device and belongs to a wastewater treatment device. The prior art has the disadvantages of large energy consumption, short service life, high investment, low efficiency and the like. An accommodating cavity of a device body is sequentially provided with a backflow recoil device, an electrocatalytic oxidation device controlled by an electric control device and an aerator from top to bottom; the bottom of the accommodating cavity of the device body is provided with a backwashing drain pipe with a valve; the upper part of the accommodating cavity of the device body is provided with a water outlet pipe; a backwashing water supply pipe with a valve and a sewage feed pipe with a valve are connected with a water outlet of a water pump from the backflow recoil device and the backwashing drain pipe respectively; the top part of the accommodating cavity of the device body is provided with a water outlet pipe; and the aerator is connected with an air pump outside the device body through a pipeline with a valve. The proposal firstly uses the aerator to aerate the wastewater, uses the backflow recoil device to clean and decontaminate an electrode plate of the electrocatalytic oxidation device, reduces abrasion, prolongs service life, improves processing efficiency; therefore, the proposal achieves the function of reducing energy consumption and investment cost.

Description

Electrocatalysis oxidation apparatus
Technical field
The invention belongs to waste disposal plant, a kind of specifically electrocatalysis oxidation apparatus of the recoil that refluxes.
Background technology
Sewage from bottom to top or from top to bottom steadily passes through plate regions in the electrocatalysis process, has certain space between the positive/negative plate, more or less there is certain dead angle in whole catalyzed oxidation zone, and the branch that has power in the time of must causing sewage through electric field influences processing efficiency.Under electric field action, be present in electrode surface or the solution " small amount of matter " (can be electroactive or non-electroactive) and because character of electrode materials own or condition of surface characteristic, can significantly quicken the electron-transfer reaction that on electrode, takes place, and " small amount of matter " or electrode itself do not change, and this phenomenon is referred to as electrocatalysis.
With the titanium plate as anode, graphite is as under the condition of negative electrode and under the energy excitation that provides of external electric field, by a large amount of O that aeration in the groove is provided 2Capture the electronics that external electric field provides, form oxyradical ion O 2-, the oxyradical ion induces H 2O 2Generate hydroxyl radical free radical ion OH at last.Hydroxyl radical free radical ion OH has high oxidisability, most organic molecule chain can be interrupted generally speaking, produces hydrolysis and acidifying effect, and a part of organism is directly by mineralising, and makes BOD 5/ COD ratio promotes, and follow-up conventional materialization and biochemistry can carry out, for good prerequisite, environment are created in final processing up to standard.
The problem that waste water exists is handled in general electrocatalysis:
1, polarization phenomena.Because the ion diffusion motion can not be finished immediately during electrolysis, different with the ionic concn of solution inside near the ionic concn in the electrode surface solution thin layer, the result produces a kind of concentration polarization, and its potential difference is also opposite with the impressed voltage direction.
2, corrosion phenomenon.Because the existence of concentration polarization makes positive plate be subject to H+ accumulation erosion, negative plate is subject to OH and corrodes in electrolytic process.Thereby reduced current efficiency.
At present, multiple chemical engineering sewage all exists " heterocycle " molecular chain and cannot or hardly open, interrupt, and causes in the sewage disposal that numerous materials do not have biochemical or a biochemical extreme difference, and the sewage after causing handling can not qualified discharge.
In highly difficult chemical engineering sewage treatment process, (its key structure is as negative electrode and anodic pole plate to have begun to quote catalytic oxidation equipment in the market, pole plate contacts with water when work, " heterocycle " in the water of decomposition), but because catalytic oxidation equipment is a kind of height piezoelectricity, physics, chemistry, machinery, hydromeehanics one very complex apparatus that integrates, main drawback has:
1, energy consumption is big, and applying unit all calls electric-tiger to the catalytic oxidation device.
2, the disposable effect of sewage disposal is undesirable, gets reflow treatment repeatedly, and the Ruo Dingliu time extends, and is subjected to critical limitations (then the device fabrication cost is big) to handling the water yield.
3, the pole plate working loss is big, and the replacement cycle is short, causes cost of investment big.
4, the accumulation of pole plate soil pick-up increases behind the equipment work, and it is serious to deteriorate, admittedly influence equipment life, efficient or precipitation dirt repeated treatments.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is to overcome defectives such as the energy consumption that prior art exists is big, the life-span short, the investment high, efficient is low, and a kind of electrocatalysis oxidation apparatus is provided.For this reason, the present invention is by the following technical solutions:
Electrocatalysis oxidation apparatus comprises that an inside has the body and a water pump of container cavity, is characterized in that:
In the container cavity of described body, be equipped with the backflow backflush device from top to bottom successively, be controlled by the catalytic oxidation device and the aerator of electrical control gear, blow-off pipe is given in the back flushing that one band valve is set in the bottom of body container cavity, top at the container cavity of described body is provided with rising pipe, have valve on this rising pipe, on the water-in of water pump, be connected with the waste pipe of band valve;
The back flushing water-supply pipe of one band valve and one is with the sewage service pipe of valve to be connected the water outlet of described water pump respectively to blow-off pipe from described backflow backflush device, back flushing;
Described aerator is connected with a air pump outside the body through the pipeline of band valve;
One end of reflux cycle pipe of one band valve is connected valve on the rising pipe and the position between the body, and its other end is connected the position between the water-in of valve on the waste pipe and water pump.This structure can be carried out reflow treatment repeatedly to current.
In this scheme: so-called backflow backflush device is to be used for current direction catalytic oxidation device is sprayed with cleaning catalytic oxidation device, so its structure can be sprinkling structure such as injector, the spilling water device etc. of any structure form; So-called aerator is to be used for the current that transport are implemented aeration, handle for catalytic oxidation device thereafter and do early-stage preparations, so its structure can be any structure form can jet-stream wind injector etc.
As the further of technique scheme improved and replenish, the present invention also comprises following additional technical feature:
Described body is rounded, and the top of its container cavity is provided with by motor-driven slag trap and dregs scraper, and described motor is controlled by described electrical control gear.Be used for the dregs of separating are carried out collection and treatment.
Described aerator forms for offer pore on circular or spiral helicine duct wall; Described backflow backflush device forms for offer pore on circular or spiral helicine duct wall.This structure is adapted to circular body shape, strengthens the matching between aerator, backflow backflush device, catalytic oxidation device and the body.
The bottom of the container cavity of described body is provided with a funnelform catch basin, and described back flushing is connected the bottom of this catch basin to blow-off pipe.Collect and discharge dregs when being convenient to back flushing.
The top of described body is provided with a gas sampling mouth that is communicated with container cavity.
The O that the present invention provides by aerator 2Under electric field action, generate oxyradical ion O 2-, the oxyradical ion induces H 2O 2, generate hydroxyl radical free radical ion OH.Hydroxyl radical free radical ion OH has high oxidisability, most organic molecule chain is interrupted generally speaking, produces hydrolysis and acidifying effect, the direct mineralising of a part of organism, and make BOD 5/ COD ratio promotes, and follow-up conventional materialization and biochemistry can carry out, and makes it the catalytic oxidizer processing efficiency and improves 60%, for good prospect, environment are created in final processing up to standard.
The present invention can work in normal processing respectively, three kinds of patterns are handled in reflow treatment and back flushing repeatedly, use the backflow backflush device that the pole plate of catalytic oxidation device is cleaned scrubbing, minimizing is deteriorated, increase the service life and improve processing efficiency, reach the effect that cuts down the consumption of energy with cost of investment thus, after measured, this device can make the pole plate life-span prolong 50%.
In addition,
1, by aeration solution is fully stirred, thereby reduce concentration polarization, alleviate the extent of corrosion of pole plate, save expense.
2, provide a large amount of oxygen to electrocatalysis, can form more hydroxyl radical free radical, made the organism of difficult degradation can obtain more completely decomposing by electric field action, increase to a greater extent biodegradability.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 works in the view of normal processing mode for the present invention.
Fig. 3 works in the view of reflow treatment pattern repeatedly for the present invention.
Fig. 4 works in the view of back flushing tupe for the present invention.
Among the figure: 1-body, 2-container cavity, 3-slag trap, 4-gas sampling mouth, 5-motor, 6-backflow backflush device, the 7-dregs scraper, 8-valve, 9-back flushing water-supply pipe, the 10-rising pipe, 11-valve, 12-reflux cycle pipe, 13-intelligence silicon controlled rectifier, 14-integrated trigger, 15-transformer, the 16-electrical control gear, 17-valve, 18-waste pipe, the 19-valve, 20-water pump, 21-valve, 22-sewage service pipe, the 23-valve, blow-off pipe is given in the 24-back flushing, the 25-catch basin, 26-catalytic oxidation device, 27-aerator, the 28-valve, the 29-air pump.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, this electrocatalysis oxidation apparatus comprises that an inside has the body 1 and a water pump 20 of container cavity 2:
In the container cavity 2 of described body 1, be equipped with backflow backflush device 6, the catalytic oxidation device 26 that is controlled by electrical control gear 16 and aerator 27 from top to bottom successively, blow-off pipe 24 is given in the back flushing that one band valve 23 is set in the bottom of body container cavity 2, is provided with rising pipe 10 on the top of the container cavity 2 of described body;
The water outlet that the sewage service pipe 22 of the back flushing water-supply pipe 9 of one band valve 8 and a band valve 21 is connected described water pump 20 for blow-off pipe 24 from described backflow backflush device 6, back flushing respectively is provided with rising pipe 10 at the top of the container cavity 2 of described body;
Described aerator 27 is connected with a air pump 29 outside the body through the pipeline of band valve 28.
More specifically,
Have valve 11 on the rising pipe 10 of body 1, on the water-in of water pump 20, be connected with the waste pipe 18 of band valve 17, one end of reflux cycle pipe 12 of one band valve 19 is connected valve 11 on the rising pipe 10 and the position between the body 1, and its other end is connected the position between the water-in of valve 17 on the waste pipe 18 and water pump 20;
Body 1 is rounded, and the top of its container cavity 2 is provided with slag trap 3 and the dregs scraper 7 that is driven by motor 5, and motor 5 is controlled by electrical control gear 16;
Described aerator 27 forms for offer pore on circular or spiral helicine duct wall, and for can be fully to the current aeration, pore be towards each zone up and down.
Described backflow backflush device 6 forms for offer pore on circular or spiral helicine duct wall.
The bottom of the container cavity 2 of body is provided with a funnelform catch basin 25, and described back flushing is connected the bottom of this catch basin 25 for blow-off pipe 24;
The top of body 1 is provided with a gas sampling mouth 4 that is communicated with container cavity 2.
And the specification of body 1 is according to water quality, the water yield decision of processing sewage, and material can be stainless steel, carbon steel line with rubber, plastic cement or clad steel plate.Backflow backflush device, back flushing can be stainless steel, carbon steel line with rubber plastic cement or matrix material to the material of blow-off pipe and each connecting tube, tubing.
Electrical control gear 16 comprises intelligent silicon controlled rectifier 13, integrated trigger 14 and transformer 15, therefore can be by the write-in program instruction to give its intelligent control ability.
Several operating mode of this device below are described:
Normal processing mode (does not have the pipeline of current process to dot as shown in Figure 2 among the figure, arrow is represented water (flow) direction), valve 8,19,23 among the figure cuts out, valve 11,17,21,28 is opened, sewage is sucked from waste pipe 18 by water pump 20, is delivered to body container cavity 2 for blow-off pipe 24 through sewage service pipe 22, back flushing, and liquid level raises in the body container cavity, contact realization with catalytic oxidation device 26 and handle, after rising pipe 10 discharges; Therebetween, air pump is to the aerator air feed, aerator work, and sewage is delivered into the body container cavity by water pump, contacts with the catalytic oxidation device through after aerator aeration and the air mixed.
The reflow treatment pattern (does not have the pipeline of current process to dot as shown in Figure 3 among the figure repeatedly, arrow is represented water (flow) direction), valve 8,11,17,23 among the figure cuts out, valve 19,21,28 is opened, sewage is delivered to body container cavity 2 for blow-off pipe 24 through sewage service pipe 22, back flushing under the power of water pump, and liquid level raises in body container cavity 2, contact realization with catalytic oxidation device 26 and handle, after reflux cycle pipe 12 is got back to water pump 20 water-ins; So circulation to meeting the requirements, can be opened respective valve until general's sewage disposal wherein, and water is discharged; Therebetween, air pump is to the aerator air feed, aerator work, and sewage is delivered into the body container cavity by water pump, contacts with the catalytic oxidation device through after aerator aeration and the air mixed.
The back flushing tupe (does not have the pipeline of current process to dot as shown in Figure 4 among the figure, arrow is represented water (flow) direction), valve 21,19,28 among the figure cuts out, valve 8,17,23 is opened, current are under the power of water pump 20, be delivered to the backflow backflush device 6 that is positioned at the higher position of body container cavity through back flushing water-supply pipe 9, by backflow backflush device 6 current are sprayed to catalytic oxidation device 26, pole plate to the catalytic oxidation device cleans scrubbing, and the dirt that washes down then discharges for blow-off pipe 24 through back flushing; During this time, air pump, aerator quit work.
Among the present invention, the pole plate of catalytic oxidation device can be realized the exchange of negative plate and positive plate as required by electrical control gear, realizes that thus the life-span of the just whole catalytic oxidation device of pole plate life-time dilatation prolongs.

Claims (6)

1. electrocatalysis oxidation apparatus comprises that an inside has a body of container cavity (2) (1) and a water pump (20), is characterized in that:
In the container cavity (2) of described body (1), be equipped with backflow backflush device (6) from top to bottom successively, be controlled by the catalytic oxidation device (26) and the aerator (27) of electrical control gear (16), blow-off pipe (24) is given in the back flushing that one band valve (23) is set in the bottom of body container cavity (2), top at the container cavity (2) of described body is provided with rising pipe (10), have valve (11) on this rising pipe (10), on the water-in of water pump (20), be connected with the waste pipe (18) of band valve (17);
The sewage service pipe (22) of the back flushing water-supply pipe (9) of one band valve (8) and a band valve (21) is connected the water outlet of described water pump (20) for blow-off pipe (24) from described backflow backflush device (6), back flushing respectively;
Described aerator (27) is connected with a air pump (29) outside the body through the pipeline of band valve (28);
One end of reflux cycle pipe (12) of one band valve (19) is connected valve (11) on the rising pipe (10) and the position between the body (1), and its other end is connected the position between the water-in of valve (17) on the waste pipe (18) and water pump (20).
2. electrocatalysis oxidation apparatus according to claim 1, it is characterized in that described body (1) is rounded, the top of its container cavity (2) is provided with slag trap (3) and the dregs scraper (7) that is driven by motor (5), and described motor (5) is controlled by described electrical control gear (16).
3. electrocatalysis oxidation apparatus according to claim 2 is characterized in that described aerator (27) forms for offer pore on circular or spiral helicine duct wall.
4. electrocatalysis oxidation apparatus according to claim 2 is characterized in that described backflow backflush device (6) forms for offer pore on circular or spiral helicine duct wall.
5. electrocatalysis oxidation apparatus according to claim 1 is characterized in that the bottom of the container cavity (2) of described body is provided with a funnelform catch basin (25), and described back flushing is connected the bottom of this catch basin (25) for blow-off pipe (24).
6. electrocatalysis oxidation apparatus according to claim 1 is characterized in that the top of described body (1) is provided with a gas sampling mouth (4) that is communicated with container cavity (2).
CN2008101201746A 2008-07-31 2008-07-31 Electrocatalysis oxidation apparatus Expired - Fee Related CN101462784B (en)

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Publication number Priority date Publication date Assignee Title
CN101863533A (en) * 2010-06-25 2010-10-20 合肥工业大学 Internal recycle multi-dimensional electro-catalytic wastewater treating equipment
CN109205868A (en) * 2018-09-30 2019-01-15 宁波中车时代传感技术有限公司 A kind of vehicle-mounted suspension type device for treatment of high-concentration dirt water
CN110642438B (en) * 2019-10-23 2022-03-15 攀钢集团攀枝花钢铁研究院有限公司 Cold rolling emulsion-containing wastewater treatment method and system
CN115231664B (en) * 2022-09-21 2022-12-30 山东北华环保股份有限公司 Electrolytic catalytic oxidation sewage treatment device

Citations (7)

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Publication number Priority date Publication date Assignee Title
US6251258B1 (en) * 1998-12-11 2001-06-26 Hitachi Plant Engineering & Construction Co., Ltd. Method and apparatus for removing toxic substances from waste marine products
CN2623681Y (en) * 2003-06-09 2004-07-07 江苏大学 Equipment for treating and recycling carwash sewage
WO2004056711A1 (en) * 2002-12-23 2004-07-08 Envirogain Inc. Method and apparatus for the electrochemical treatment of contaminated aqueous media
CN2711150Y (en) * 2004-07-13 2005-07-20 兰州交通大学 Catalyst electro-oxidation reactor
CN2926204Y (en) * 2006-06-28 2007-07-25 珠海九通环境工程有限公司 Sewage treating trough with electrocatalytic oxidation functions
CN101077801A (en) * 2007-05-14 2007-11-28 广州有色金属研究院 Fluid bed three-dimensional electrode reactor for treating organic waste water
CN101096279A (en) * 2006-06-28 2008-01-02 武汉长航给排水环境节能设备成套工程公司 Multifunctional critical multiple catalyzing electrolysis set equipment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6251258B1 (en) * 1998-12-11 2001-06-26 Hitachi Plant Engineering & Construction Co., Ltd. Method and apparatus for removing toxic substances from waste marine products
WO2004056711A1 (en) * 2002-12-23 2004-07-08 Envirogain Inc. Method and apparatus for the electrochemical treatment of contaminated aqueous media
CN2623681Y (en) * 2003-06-09 2004-07-07 江苏大学 Equipment for treating and recycling carwash sewage
CN2711150Y (en) * 2004-07-13 2005-07-20 兰州交通大学 Catalyst electro-oxidation reactor
CN2926204Y (en) * 2006-06-28 2007-07-25 珠海九通环境工程有限公司 Sewage treating trough with electrocatalytic oxidation functions
CN101096279A (en) * 2006-06-28 2008-01-02 武汉长航给排水环境节能设备成套工程公司 Multifunctional critical multiple catalyzing electrolysis set equipment
CN101077801A (en) * 2007-05-14 2007-11-28 广州有色金属研究院 Fluid bed three-dimensional electrode reactor for treating organic waste water

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