CN107188276A - A kind of composite electrochemical catalytic oxidizing equipment - Google Patents

A kind of composite electrochemical catalytic oxidizing equipment Download PDF

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Publication number
CN107188276A
CN107188276A CN201710478130.XA CN201710478130A CN107188276A CN 107188276 A CN107188276 A CN 107188276A CN 201710478130 A CN201710478130 A CN 201710478130A CN 107188276 A CN107188276 A CN 107188276A
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CN
China
Prior art keywords
pond body
composite
electrode
catalytic oxidizing
oxidizing equipment
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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CN201710478130.XA
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Chinese (zh)
Inventor
韩全
张恒
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Guangdong Yeanovo Environmental Protection Co Ltd
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Guangdong Yeanovo Environmental Protection Co Ltd
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Priority to CN201710478130.XA priority Critical patent/CN107188276A/en
Publication of CN107188276A publication Critical patent/CN107188276A/en
Pending legal-status Critical Current

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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
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • 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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • 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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46133—Electrodes characterised by the material
    • 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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46133—Electrodes characterised by the material
    • C02F2001/46138—Electrodes comprising a substrate and a coating
    • C02F2001/46142—Catalytic coating
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4616—Power supply
    • C02F2201/4617—DC only
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4619—Supplying gas to the electrolyte
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/02—Specific form of oxidant
    • C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (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)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The application provides a kind of composite electrochemical catalytic oxidizing equipment, including pond body (1) and dc source (9), wherein, pond body (1) bottom sets filter (4), air inlet (3) is set between pond body (1) bottom and filter (4), it is characterized in that, pond body (1) both sides inwall sets corresponding electrode slot, make positive electrode (5) and negative electrode (6) it is vertical parallel it is alternate be inserted in pond body, dc source (9) connects the positive electrode (5) and negative electrode (6).Apparatus of the present invention are directed to high COD, high LAS and high oil-containing wastewater, and the device can remove hardly degraded organic substance, oil removing efficient stable；Reduce processing cost；While significantly removing hardly degraded organic substance, the biodegradability of waste water can be greatly enhanced；And this equipment is compact to design rationally, and floor space is small, meets different place demands；Whole-course automation is controlled, without with artificial.

Description

A kind of composite electrochemical catalytic oxidizing equipment
Technical field
The present invention relates to environment sewage treatment field, especially a kind of composite electrochemical catalytic oxidizing equipment.
Background technology
Industrial wastewater refers to produce sewage and waste liquid in industrial processes, wherein being used containing the industrial production outflowed with water The pollutant produced in material, intermediate product, product and production process.Industrial wastewater classification generally has three kinds of methods：A. basis The chemical property of pollutant is classified；B. classified according to the product and object of enterprise；C. according to the main component of pollutant come Classification.Different industrial wastewaters, the method and apparatus that it is handled are different.The processing method of waste water is broadly divided into four major classes： Physical treatment process, method of chemical treatment, physical-chemical process and biological treatment.
At present, in high COD, high LAS and high oil-containing wastewater process field, most domestic industrial park sewage plant uses two Level biochemical processing process, terminates flocculation process afterwards.COD is only lowered to 100mg/L or so, and current municipal execution is not reached far 《Urban wastewater treatment firm pollutant emission standard》(GB18918-2002) big portion in one-level A discharge standard, and water outlet COD Belong to the organic matter of dissolubility difficult for biological degradation.The difficult degradation that biological method can not continue in degraded biochemical tail water is organic Thing.The features such as advanced oxidation processes have high efficiency, ease for operation, non-selectivity, is widely used in organic wastewater with difficult degradation thereby In processing.High-level oxidation technology fundamentally changes the molecular structure of hardly degraded organic substance, makes a portion by direct oxygen The small molecule inorganic matter such as water and carbon dioxide is melted into, another part is mineralized to form precipitation.Currently used for the master of advanced oxidation processes There are ozone, Fenton, hydrogen peroxide, electrochemical oxidation etc..
But existing Ozone uses single ozone oxidation agent, oxidability is not enough；The time of contact of ozone and sewage is long, Floor space is big；Ozonation aerated mode is it cannot be guaranteed that ozone and water are sufficiently mixed, and utilization rate is low.Fenton oxidation chemical feeding quantity is big, Dioxygen water unstable is degradable, produces sludge quantity greatly, operating cost is high, so that the further expansion for limiting Fenton oxidation should With.Electrochemical oxidation process has capacity usage ratio high, can also be carried out under low temperature, equipment is relatively easy, it is easy to automatically control, without two The features such as secondary pollution, but the technology energy consumption is higher, it is difficult to large-scale industrialized development.
In summary, biological method can not continue to degrade the hardly degraded organic substance in biochemical tail water, and advanced oxidation skill Art can fundamentally change the molecular structure of hardly degraded organic substance, a portion is direct oxidation into water and carbon dioxide etc. Small molecule inorganic matter, another part mineralising formation is precipitated and is removed.Therefore high-level oxidation technology turns into hardly degraded organic substance The first choice of processing.And in high-level oxidation technology, because oxidizer containing chlorine easily forms carcinogen, dioxygen water unstable easily divides Solution, Fenton oxidation sludge output is big, electrochemical oxidation process energy consumption is higher, photocatalytic oxidation catalytic efficiency is low, ultrasonic radiation degraded Still immature etc. technological deficiency of method.
The content of the invention
To overcome existing defect, the present invention proposes a kind of composite electrochemical catalytic oxidizing equipment.
A kind of composite electrochemical catalytic oxidizing equipment, including pond body and dc source, wherein, pond body bottom sets filtering Plate, sets air inlet between pond body bottom and filter, pond body both sides inwall sets corresponding electrode slot, makes positive electrode With negative electrode it is vertical parallel it is alternate be inserted in pond body, dc source connects the positive electrode and negative electrode.
Pond body exterior side wall upper end sets delivery port；Pond body internal side wall upper end sets production water collecting groove, pond body outer side Wall lower end sets water inlet.
Composite catalyst is set inside pond body, wherein, composite catalyst is composite catalyst.
Composite catalyst is the one of which of Copper-tin alloy solution, pltine solution and carbon silicon composite solution.
In the positive electrode and negative electrode, positive electricity extremely titanium-based is coated with the catalysis electrode that silicon-carbon is formed through high temperature sintering；It is negative Electrode is signal bronze, pltine, titanium, chromium, the one of which of barium alloy.
By the present invention, solve and handling high COD, high LAS and high oil-containing wastewater field prior art and processing unit Many not enough the problem of, and a kind of composite electrochemical catalytic oxidizing equipment efficiently, stable is provided.
Brief description of the drawings
Fig. 1 is composite electrochemical catalytic oxidizing equipment schematic diagram.
Embodiment
A kind of composite electrochemical catalytic oxidizing equipment that the present invention is provided is carried out with specific embodiment below in conjunction with the accompanying drawings It is described in detail.
Fig. 1 shows, a kind of composite electrochemical catalytic oxidizing equipment, including pond body 1 and dc source 9, and power supply is according to need What sewage property to be processed, water, handling process were formulated, including the parameter such as voltage, electric current, and constant pressure and flow dc source, The pulse power, rectified pulsatory power supply etc..
The bottom of pond body 1 sets filter 4, and air inlet 3 is set between the bottom of pond body 1 and filter 4, is mended in cathodic region Gas, continuous oxygen and raw water are reduced in negative electrode, make to combine 1 the water in device more or 2 oxygen become H2O2 and O3, improve OH growing amount, or O3 is to organic matter direct oxidation.
The both sides inwall of the pond body 1 sets corresponding electrode slot, makes positive electrode 5 and negative electrode 6 is vertical parallel mutually interleaves It is placed in pond body, dc source 9 connects the positive electrode 5 and negative electrode 6.Positive and negative electrode is vertical parallel alternate to be inserted in pond body Or setting symmetrical above and below, in favor of changing.To solve the power consumption on motor, electrode structure uses double-faced flat-sheet electrode, improves electricity The efficiency of field.The present apparatus ensures treatment effect by following technical measures
The exterior side wall upper end of pond body 1 sets delivery port 8；The internal side wall upper end of pond body 1 is set outside production water collecting groove 7, pond body 1 Portion's side wall lower ends set water inlet 2.
The inside of pond body 1 sets composite catalyst 10, wherein, composite catalyst 10 is composite catalyst 10.
The rare metals such as the common stain wicking of composite catalyst, copper, platinum, and the leaching of the composite catalyst stain of the invention is The alloy solution that directly formula is constituted, such as Copper-tin alloy solution, pltine solution and carbon silicon composite solution, stain leaching is more repeatedly Secondary, through high-temperature roasting in activated carbon surface formation multicomponent alloy layer after each stain leaching, its catalytic organism oxidation is than conventional Composite catalyst improve 20-30%.
For high COD, high LAS and high oil-containing wastewater, thus composition electrode from negative pole be signal bronze, pltine, Titanium, chromium, barium alloy etc., positive pole, which is coated with silicon-carbon from titanium-based and forms a kind of catalysis electrode through high temperature sintering, makes organic matter straight in anode Connect catalytic decomposition and partial direct oxidation.
The composite electrochemical catalytic oxidizing equipment that the present invention is provided is to be directed to high COD, high LAS and high oil-containing wastewater, is utilized The direct oxidation and indirect oxidation effect of multiple elements design electrolysis come oils in oxidized waste water, LAS and degraded hardly degraded organic substance, make Its oxidation Decomposition turns into degradable, nonhazardous material.Direct oxidation is in anode surface electric discharge generation OH bases by hydrone With the organic matter near anode oxidation reaction occurs for group, OH groups.Indirect oxidation refers to utilize the strong of electrochemical reaction generation Oxidant (such as C1O-, high volence metal ion), carrys out organic matter in oxidized waste water.
For example：ClO2+H2O→HClO3+ HCl anode reactions：The Fe of Fe-2e mono-2+ E0(Fe2+/ Fe)=- 0.44V
2ClO2→Cl2+2O2Cathode reaction：2H++2e→H2↑ E0(H+/H2)=0.00V
ClO2+ HO → HCl+HClO or when there is oxygen：O2+4H++4e→2H2O E0(O2)=1.23V
2HClO→Cl2O+H2O O2+2H2O+4e→40H- E0(O2/OH-)=0.40V
HClO2+Cl2+H2O→HClO3+HCl
Composite electrochemical catalytic oxidizing equipment forms the electrode reaction of micro cell in waste water, makes waste water occur such as to be catalyzed The reactions such as oxidation Decomposition, coagulation, absorption, complexing and displacement, so as to remove COD, LAS, oils in waste water etc. rapidly.In device The micropore catalysis oxidation filler of middle addition, porosity is high, and specific surface area is big, for wastewater treatment provide bigger current density with More preferable cell reaction effect, accelerates reaction rate.Waste water by device after handling, and outlet effect is obvious：COD clearances> 90%, LAS<5mg/l, oils clearance more than 85%.
Apparatus of the present invention are directed to high COD, high LAS and high oil-containing wastewater, and the device can remove hardly degraded organic substance, oil removing height Effect is stable；Reduce processing cost；While significantly removing hardly degraded organic substance, the biodegradability of waste water can be greatly enhanced； And this equipment is compact to design rationally, and floor space is small, meets different place demands；Whole-course automation is controlled, without with artificial.
Finally it should be noted that above example is only to describe technical scheme rather than to this technology method Limited, the present invention application can above extend to other modifications, change, using and embodiment, and it is taken as that institute Have such modification, change, using, embodiment all in the range of the spirit or teaching of the present invention.

Claims (5)

1. a kind of composite electrochemical catalytic oxidizing equipment, including pond body (1) and dc source (9), wherein, pond body (1) bottom is set Filter (4) is put, air inlet (3) is set between pond body (1) bottom and filter (4), it is characterised in that the pond body (1) two Side inwall sets corresponding electrode slot, make positive electrode (5) and negative electrode (6) it is vertical parallel it is alternate be inserted in pond body, direct current Power supply (9) connects the positive electrode (5) and negative electrode (6).
2. composite electrochemical catalytic oxidizing equipment according to claim 1, it is characterised in that pond body (1) outer side Wall upper end sets delivery port (8)；Pond body (1) internal side wall upper end sets production water collecting groove (7), pond body (1) exterior side wall lower end Water inlet (2) is set.
3. composite electrochemical catalytic oxidizing equipment according to claim 1, it is characterised in that set inside the pond body (1) Composite catalyst (10) is put, wherein, composite catalyst (10) is composite catalyst (10).
4. composite electrochemical catalytic oxidizing equipment according to claim 3, it is characterised in that the composite catalyst (10) For the one of which of Copper-tin alloy solution, pltine solution and carbon silicon composite solution.
5. composite electrochemical catalytic oxidizing equipment according to claim 1, it is characterised in that the positive electrode (5) and negative In electrode (6), positive electrode (5) is that titanium-based is coated with the catalysis electrode that silicon-carbon is formed through high temperature sintering；Negative electrode (6) closes for copper and tin Gold, pltine, titanium, chromium, the one of which of barium alloy.
CN201710478130.XA 2017-06-22 2017-06-22 A kind of composite electrochemical catalytic oxidizing equipment Pending CN107188276A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113526625A (en) * 2021-08-24 2021-10-22 南通市金宏电化设备有限公司 Novel organic wastewater treatment electrolysis device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85106939A (en) * 1985-09-18 1987-04-01 缪淦 The binary condensed electrolysis is handled the industrial sewage Processes and apparatus
CN1358672A (en) * 2002-01-16 2002-07-17 中山大学 Three-dimension electrode reactor and use for treating organic waste water
CN1429773A (en) * 2001-12-31 2003-07-16 中国科学院大连化学物理研究所 Method of treating oil field waste water by electric-multiphase catalytic reaction and its special equipment
CN1522968A (en) * 2003-09-09 2004-08-25 大连理工大学 Method and apparatus for treating sewage using multiphase multicomponent catalysis electrolytic oxidation process
CN2910910Y (en) * 2006-06-07 2007-06-13 丁荣吾 Electrolysis treatment equipment for reuse of wastewater as resources
CN102211829A (en) * 2010-04-01 2011-10-12 上海晶园环保科技有限公司 Advanced oxidation device and method for treating high-concentration organic substance wastewater
CN202265445U (en) * 2011-09-28 2012-06-06 天津市环境保护科学研究院 Multiphase repolarization electro-catalysis industrial effluent treatment system for removing biological toxicity efficiently

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85106939A (en) * 1985-09-18 1987-04-01 缪淦 The binary condensed electrolysis is handled the industrial sewage Processes and apparatus
CN1429773A (en) * 2001-12-31 2003-07-16 中国科学院大连化学物理研究所 Method of treating oil field waste water by electric-multiphase catalytic reaction and its special equipment
CN1358672A (en) * 2002-01-16 2002-07-17 中山大学 Three-dimension electrode reactor and use for treating organic waste water
CN1522968A (en) * 2003-09-09 2004-08-25 大连理工大学 Method and apparatus for treating sewage using multiphase multicomponent catalysis electrolytic oxidation process
CN2910910Y (en) * 2006-06-07 2007-06-13 丁荣吾 Electrolysis treatment equipment for reuse of wastewater as resources
CN102211829A (en) * 2010-04-01 2011-10-12 上海晶园环保科技有限公司 Advanced oxidation device and method for treating high-concentration organic substance wastewater
CN202265445U (en) * 2011-09-28 2012-06-06 天津市环境保护科学研究院 Multiphase repolarization electro-catalysis industrial effluent treatment system for removing biological toxicity efficiently

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113526625A (en) * 2021-08-24 2021-10-22 南通市金宏电化设备有限公司 Novel organic wastewater treatment electrolysis device

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Application publication date: 20170922