CN107324457A - A kind of electric Fenton equipment and sewage water treatment method - Google Patents

A kind of electric Fenton equipment and sewage water treatment method Download PDF

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Publication number
CN107324457A
CN107324457A CN201710705121.XA CN201710705121A CN107324457A CN 107324457 A CN107324457 A CN 107324457A CN 201710705121 A CN201710705121 A CN 201710705121A CN 107324457 A CN107324457 A CN 107324457A
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CN
China
Prior art keywords
electrolytic cell
water inlet
reactor body
mud discharging
discharging mouth
Prior art date
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Pending
Application number
CN201710705121.XA
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Chinese (zh)
Inventor
戴睿智
廖劲松
林世桂
徐芳艳
俞捷径
冷学义
刘媛媛
陈元辉
孔令海
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Guangdong Yikangsheng Environmental Protection Technology Co Ltd
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Guangdong Yikangsheng Environmental Protection Technology Co Ltd
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Priority to CN201710705121.XA priority Critical patent/CN107324457A/en
Publication of CN107324457A publication Critical patent/CN107324457A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104Devices therefor; Their operating or servicing
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/463Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/722Oxidation by peroxides
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/46Apparatus for electrochemical processes
    • C02F2201/461Electrolysis apparatus
    • C02F2201/46105Details relating to the electrolytic devices
    • C02F2201/4616Power supply
    • C02F2201/46175Electrical pulses
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/14Maintenance of water treatment installations
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00Use of specific compounds during water treatment
    • C02F2305/02Specific form of oxidant
    • C02F2305/023Reactive oxygen species, singlet oxygen, OH radical
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00Use of specific compounds during water treatment
    • C02F2305/02Specific form of oxidant
    • C02F2305/026Fenton's reagent

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

The invention discloses a kind of electric Fenton equipment and sewage water treatment method, including reactor body, water inlet pipe, hydrogen peroxide adds pipe, air inlet pipe and discharge pipeline, the bottom of the reactor body is provided with water inlet, first mud discharging mouth and the second mud discharging mouth, discharge pipeline connects first mud discharging mouth and the second mud discharging mouth, water inlet pipe connects the water inlet, hydrogen peroxide adds pipe and connects the water inlet pipe, the intracavity bottom of reactor body is provided with aeration tube, the first electrolytic cell and the second electrolytic cell are provided with the inner chamber of reactor body, iron carbon electrolysis material is filled with first electrolytic cell and the second electrolytic cell, first electrolytic cell and the second electrolytic cell are located at the top of the aeration tube, and it is formed with effluent trough between first electrolytic cell and the second electrolytic cell, the inner cavity top of the reactor body is provided with outlet pipe.The electrolysis filler that the technical program is used to solve existing electric Fenton equipment presence is easily hardened blocking, and the problem of the precipitation influence electrode reaction of surface.

Description

A kind of electric Fenton equipment and sewage water treatment method
Technical field
The invention belongs to technical field for the treatment of of organic waste, and in particular to a kind of electric Fenton equipment and sewage water treatment method.
Background technology
Electric Fenton is the Fe produced using electrochemical method2+And H2O2As the constant source of Fenton reagent, both produce Act on immediately afterwards and generate the hydroxyl radical free radical with high activity so that organic matter is degraded, it is substantially exactly in electrolysis During directly generate Fenton reagent.According to Fenton reagent Fe2+And H2O2Different producing methods, can be divided into four by electric Fenton hair Type:
Fe2+And H2O2Prepared by a chemical method, wherein Fe2+Produced by anodic oxidation, H2O2Produced by O2 in cathodic reduction;
Fe2+Produced by Fe in anodic oxidation, H2O2Added by outside;
Fe2+Added by outside, H2O2Pass through O2Produced in cathodic reduction;
H2O2Added by outside, Fe2+By Fe3+Reduce and produce in cathode surface;
The shortcoming of prior art:Traditional electrolysis filler is easily hardened blocking, is deposited in reaction tank bottom, reduces pond and holds;For High concentrated organic wastewater, electrolysis material surface can generate sediment, and iron filings surface can be also generated between passivating film, obstruction iron carbon Electrode reaction, causes electrolytic process to weaken.
The content of the invention
For above-mentioned technical problem, the invention provides a kind of electric Fenton equipment and sewage water treatment method, to solve The electrolysis filler that certainly existing electric Fenton equipment is present is easily hardened blocking, and the problem of the precipitation influence electrode reaction of surface, The electric Fenton equipment can carry out sufficiently cleaned up processing to sewage, it is to avoid the hardened problem of electrolysis filler.
A kind of electric Fenton equipment, including reactor body, water inlet pipe, hydrogen peroxide add pipe, air inlet pipe and discharge pipeline, described The bottom of reactor body is provided with water inlet, the first mud discharging mouth and the second mud discharging mouth, the water inlet, the first mud discharging mouth and Two mud discharging mouths are connected to the inner chamber of the reactor body, and the discharge pipeline connects first mud discharging mouth and the second mud discharging mouth, The water inlet pipe connects the water inlet, and the hydrogen peroxide adds pipe and connects the water inlet pipe, the inner chamber of the reactor body Bottom is provided with aeration tube, and the air inlet pipe, which is connected, is provided with the first electricity in the aeration tube, the inner chamber of the reactor body Solve and iron carbon electrolysis material is filled with groove and the second electrolytic cell, first electrolytic cell and the second electrolytic cell, first electrolysis Groove and the second electrolytic cell are located at the top of the aeration tube, and are formed with water outlet between first electrolytic cell and the second electrolytic cell Groove, the liquid between first electrolytic cell, the second electrolytic cell and effluent trough can be interconnected, the inner chamber of the reactor body Top is provided with outlet pipe.
Further, the quantity of the aeration tube be 2,2 aeration tubes respectively be located at first electrolytic cell and Below second electrolytic cell.
Further, first mud discharging mouth and the second mud discharging mouth are located at the both sides of the water inlet respectively.
A kind of sewage water treatment method, using electric Fenton equipment as described above, including following operating procedure:
Step one:Sewage and hydrogen peroxide are mixed, mixed sewage and hydrogen peroxide are added to from the bottom of reactor body In the inner chamber of reactor body;
Step 2:Apply high frequency pulse power supply to iron carbon electrolysis material, iron carbon electrolysis material is produced in the electrolysis of high frequency pulse power supply Raw ferrous iron simultaneously works with the hydrogen peroxide one in sewage, forms the free radical that Fenton's reaction produces strong oxidizing property, organic matter is entered Row is removed;
Step 3:While high frequency pulse power supply is passed through, intermittent aeration, the iron carbon that shakes electrolysis are carried out by the aeration tube The sediment of material surface, reactor body is discharged by discharge pipeline by sediment.
Compared to prior art, the advantage of the invention is that:Hydrogen peroxide inlet pipe is connected into water inlet pipe, entered instead in sewage Answer and hydrogen peroxide and sewage are mixed between device main body, so as to improve the decentralization of hydrogen peroxide, improve organic matter degradation Uniformity, intermittent aeration can be carried out in electric Fenton equipment normal course of operation by aeration tube, pass through intermittent aeration The sediment on iron plate surface is got rid of, iron plate problem of passivation is efficiently solved, the sediment produced after electro-Fenton reaction Matter is discharged by the discharge pipeline of bottom, it is ensured that the stable operation of equipment.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of electric Fenton equipment;
Fig. 2 is a kind of side sectional view of electric Fenton equipment;
Fig. 3 is a kind of bottom sectional view of electric Fenton equipment.
Embodiment
The invention discloses a kind of electric Fenton equipment and sewage water treatment method, the electric Fenton equipment can fill to sewage Divide purified treatment, it is to avoid the hardened problem of electrolysis filler.
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described, shown So, described only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, The every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made, belongs to this Invent the scope of protection.
Referring to shown in Fig. 1-Fig. 3, the invention discloses a kind of electric Fenton equipment, including it is reactor body 3, water inlet pipe 2, double Oxygen water adds pipe 1, air inlet pipe 5 and discharge pipeline 8, and the bottom of the reactor body 3 is provided with water inlet 9, the and of the first mud discharging mouth 7 Second mud discharging mouth 10, the water inlet 9, the first mud discharging mouth 7 and the second mud discharging mouth 10 are connected to the interior of the reactor body 3 Chamber, the discharge pipeline 8 connects the mud discharging mouth 10 of the first mud discharging mouth 7 and second, and the water inlet pipe 2 connects the water inlet 9, institute State hydrogen peroxide and add pipe 1 and connect the water inlet pipe 2, the intracavity bottom of the reactor body 3 is provided with aeration tube 6, it is described enter Tracheae 5 connects in the aeration tube 6, the inner chamber of the reactor body 3 and is provided with the first electrolytic cell 11 and the second electrolytic cell 12, Iron carbon electrolysis material is filled with the electrolytic cell 12 of first electrolytic cell 11 and second, first electrolytic cell 11 and second is electrolysed Groove 12 is located at the top of the aeration tube 6, and is formed with effluent trough 13 between the electrolytic cell 12 of first electrolytic cell 11 and second, Liquid between first electrolytic cell 11, the second electrolytic cell 12 and effluent trough 13 can be interconnected, the reactor body 3 Inner cavity top is provided with outlet pipe 4.
Waste water is entered in electric Fenton equipment after passing through pre-treatment by water inlet pipe 2, and hydrogen peroxide adds pipe 1 by dosing pump control System connection water inlet pipe 2, also enters reactor body 3 together by water inlet pipe 2.Iron carbon electrolysis material is produced sub- by pulse electrolysis Iron simultaneously works with the hydrogen peroxide one of addition, forms the free radical that Fenton's reaction produces strong oxidizing property, organic matter is removed. Waste water is flowed out after fully being reacted by electric Fenton equipment by upper end outlet pipe 4, into next processing unit.
The quantity of the aeration tube 6 is 2, and 2 aeration tubes 6 are located at the electricity of the first electrolytic cell 11 and second respectively Solve the lower section of groove 12.
The mud discharging mouth 10 of first mud discharging mouth 7 and second is located at the both sides of the water inlet 9 respectively.
Hydrogen peroxide inlet pipe is connected into water inlet pipe 2, hydrogen peroxide and sewage entered between sewage enters reactor body 3 Row mixing, so as to improve the decentralization of hydrogen peroxide, improves the uniformity of organic matter degradation, electric Fenton equipment normal course of operation In intermittent aeration can be carried out by aeration tube 6, the sediment on iron plate surface is got rid of by intermittent be aerated, effectively solved Certainly iron plate problem of passivation, the deposit produced after electro-Fenton reaction is discharged by the discharge pipeline 8 of bottom, it is ensured that equipment Stable operation.
A kind of sewage water treatment method, using electric Fenton equipment as described above, including following operating procedure:
Step one:Sewage and hydrogen peroxide are mixed, the bottom of mixed sewage and hydrogen peroxide from reactor body 3 is added to In the inner chamber of reactor body 3;
Step 2:Apply high frequency pulse power supply to iron carbon electrolysis material, iron carbon electrolysis material is produced in the electrolysis of high frequency pulse power supply Raw ferrous iron simultaneously works with the hydrogen peroxide one in sewage, forms the free radical that Fenton's reaction produces strong oxidizing property, organic matter is entered Row is removed;
Step 3:While high frequency pulse power supply is passed through, intermittent aeration is carried out by the aeration tube 6, shake iron carbon electricity The sediment of material surface is solved, sediment is discharged by reactor body 3 by discharge pipeline 8.
This sewage water treatment method is using electric Fenton-iron oxidizing process, H2O2Added by outside.A kind of efficient electrolysis technology is designed, Using high frequency pulse power supply, mainly by applying the reaction on pulse signal, electrode off and on, be conducive to spreading, reduce Concentration polarization, so as to reduce power consumption and iron loss;When the first electrolytic cell 11 and the energization of the second electrolytic cell 12, iron anode loses two electricity Son is oxidized to Fe2+, Fe2+Occurs Fenton's reaction production free radical with the hydrogen peroxide of addition.Organic matter is caused to drop in the system The factor of solution is in addition to free radical, also Fe (OH)2、Fe(OH)3Flocculation, i.e., anodic oxidation produce active Fe2+、 Fe3+ The Fe (OH) of the strong Absorptive complex wave effect of the paired organic matter of hydrolyzable2、Fe(OH)3.Improve aeration mode and filled out with the electrolysis of iron carbon Material, can make the sediment on iron carbon electrolysis material come off, and efficiently solve that filler is hardened, problem of passivation.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's Protection domain.

Claims (4)

1. a kind of electric Fenton equipment, it is characterised in that add pipe, air inlet pipe and row including reactor body, water inlet pipe, hydrogen peroxide Mud pipe, the bottom of the reactor body is provided with water inlet, the first mud discharging mouth and the second mud discharging mouth, the water inlet, first Mud discharging mouth and the second mud discharging mouth are connected to the inner chamber of the reactor body, and the discharge pipeline connects first mud discharging mouth and the Two mud discharging mouths, the water inlet pipe connects the water inlet, and the hydrogen peroxide adds pipe and connects the water inlet pipe, the reactor master The intracavity bottom of body is provided with aeration tube, and the air inlet pipe is connected in the aeration tube, the inner chamber of the reactor body and set Have in the first electrolytic cell and the second electrolytic cell, first electrolytic cell and the second electrolytic cell and be filled with iron carbon electrolysis material, it is described First electrolytic cell and the second electrolytic cell are located at the top of the aeration tube, and shape between first electrolytic cell and the second electrolytic cell Into there is effluent trough, the liquid between first electrolytic cell, the second electrolytic cell and effluent trough can be interconnected, the reactor master The inner cavity top of body is provided with outlet pipe.
2. a kind of electric Fenton equipment according to claim 1, it is characterised in that the quantity of the aeration tube is 2,2 The aeration tube is located at below first electrolytic cell and the second electrolytic cell respectively.
3. a kind of electric Fenton equipment according to claim 1, it is characterised in that first mud discharging mouth and the second mud discharging mouth It is located at the both sides of the water inlet respectively.
4. a kind of sewage water treatment method, it is characterised in that set using the electric Fenton as described in any one in claim 1-3 It is standby, including following operating procedure:
Step one:Sewage and hydrogen peroxide are mixed, mixed sewage and hydrogen peroxide are added to from the bottom of reactor body In the inner chamber of reactor body;
Step 2:Apply high frequency pulse power supply to iron carbon electrolysis material, iron carbon electrolysis material is produced in the electrolysis of high frequency pulse power supply Raw ferrous iron simultaneously works with the hydrogen peroxide one in sewage, forms the free radical that Fenton's reaction produces strong oxidizing property, organic matter is entered Row is removed;
Step 3:While high frequency pulse power supply is passed through, intermittent aeration, the iron carbon that shakes electrolysis are carried out by the aeration tube The sediment of material surface, reactor body is discharged by discharge pipeline by sediment.
CN201710705121.XA 2017-08-17 2017-08-17 A kind of electric Fenton equipment and sewage water treatment method Pending CN107324457A (en)

Priority Applications (1)

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CN201710705121.XA CN107324457A (en) 2017-08-17 2017-08-17 A kind of electric Fenton equipment and sewage water treatment method

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Application Number Priority Date Filing Date Title
CN201710705121.XA CN107324457A (en) 2017-08-17 2017-08-17 A kind of electric Fenton equipment and sewage water treatment method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110668620A (en) * 2019-11-07 2020-01-10 沈阳工业大学 Jet fluidized bed type electro-Fenton treatment system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004181329A (en) * 2002-12-02 2004-07-02 Kurita Water Ind Ltd Wastewater treatment method and apparatus therefor
CN202643482U (en) * 2012-05-05 2013-01-02 合肥志宇环保科技有限公司 Fenton and iron-carbon micro-electrolysis combined catalytic oxidation device for wastewater
CN106630029A (en) * 2017-01-18 2017-05-10 广东益康生环保科技有限公司 Pulse electrolysis system and method for electrolyzing wastewater by means of pulse electrolysis system
CN207330453U (en) * 2017-08-17 2018-05-08 广东益康生环保科技有限公司 A kind of electricity Fenton equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004181329A (en) * 2002-12-02 2004-07-02 Kurita Water Ind Ltd Wastewater treatment method and apparatus therefor
CN202643482U (en) * 2012-05-05 2013-01-02 合肥志宇环保科技有限公司 Fenton and iron-carbon micro-electrolysis combined catalytic oxidation device for wastewater
CN106630029A (en) * 2017-01-18 2017-05-10 广东益康生环保科技有限公司 Pulse electrolysis system and method for electrolyzing wastewater by means of pulse electrolysis system
CN207330453U (en) * 2017-08-17 2018-05-08 广东益康生环保科技有限公司 A kind of electricity Fenton equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110668620A (en) * 2019-11-07 2020-01-10 沈阳工业大学 Jet fluidized bed type electro-Fenton treatment system

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Application publication date: 20171107