CN108502988A - A kind of electrolytic method for improving treatment of Organic Wastewater effect - Google Patents
A kind of electrolytic method for improving treatment of Organic Wastewater effect Download PDFInfo
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- CN108502988A CN108502988A CN201810372477.0A CN201810372477A CN108502988A CN 108502988 A CN108502988 A CN 108502988A CN 201810372477 A CN201810372477 A CN 201810372477A CN 108502988 A CN108502988 A CN 108502988A
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- organic wastewater
- improving treatment
- electrolytic
- electrolytic method
- electrolytic cell
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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
- C02F1/46104—Devices therefor; Their operating or servicing
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a kind of electrolytic methods for improving treatment of Organic Wastewater effect, belong to technical field of waste water processing, include the following steps：1. the filling of electrolytic cell：Controlled material is packed into electrolytic cell；The controlled material by several auxiliary agent mix after through foaming；The auxiliary agent includes polyethers, TDI, water, triethanolamine, activated carbon, foaming agent and foam stabiliser；2. electrolysis is modified：Waste water is passed through in electrolytic cell and carries out electrolysis modification；3. flocculation sediment：By step 2. treated waste water export, flocculation sediment is carried out after flocculant is added.The electrolytic method be used to flocculate to organic wastewater before electrolysis modification, be particularly suitable for the organic wastewater of high concentration, the electric fields uniform in electrolytic cell can be made to be distributed, what at lower cost/better effects realized organic wastewater can flocculating.
Description
Technical field
The present invention relates to technical field of waste water processing, in particular to a kind of electrolysis for improving treatment of Organic Wastewater effect
Method.
Background technology
Electric flocculation method be using electricity dissociation, under the assistance of chemical coagulant, remove waste water in pollutant or
Toxic is converted into a kind of wastewater treatment method of non-poisonous material, reaction principle is using metals such as aluminium, iron as anode, in direct current
Under the action of electricity, anode is dissoluted, and generates Al, Fe plasma, in a series of oxidation process through hydrolysis, polymerization and ferrous iron, hair
Transform into as various hydroxo complexes, multinuclear hydroxo complex makes colloidal state impurity, suspended impurity in waste water solidifying down to hydroxide
Coagulation forms sediment and detaches simultaneously, the contaminant particle swimming in the electric field of electrification, and Partial charge is neutralized by electrode and it is promoted to take off
Steady coagulation.When waste water carries out electrolytic flocculation processing, not only there is a coagulative precipitation effect to colloidal state impurity and suspended impurity, but also due to
The oxidation of anode and the reduction of cathode can remove multiple pollutant in water removal.
As one of more method for treating water is studied at present, most of electric flocculations using one-step method in the prior art
Method, will electrolysis is modified is separated with flocculation sediment, engineering construction when, can increase floor space, and such as application No. is CN
201510271605.9 Chinese invention patent discloses a kind of dystopy floc point flocculation plant and dystopy electro-flucculation process, packet
Groove body, at least a pair of electrodes plate inside the groove body are included, dystopy flocculates electric flocculation device also with gas inlet pipe, side
Method is passed into sour gas in waste water by gas inlet pipe to realize that dystopy is flocculated.
Also have the prior art from increase contact area from the point of view of traditional electrolyte pond is improved, such as application No. is
200620106259.5 Chinese utility model patent disclose a kind of metal foaming battery, inside electrolytic cell just filled with one
Property, conductive metal foam, can increase the contact area of solar panel and electrolyte, to reduce the capacity and electricity of electrolyte
Pond body is accumulated, while keeping enough mechanical strength dichloromethane.
Invention content
In view of the above technical problems, it is of the present invention for improve the electrolytic method for the treatment of of Organic Wastewater effect for pair
Organic wastewater flocculated before electrolysis modification, be particularly suitable for the organic wastewater of high concentration, can make in electrolytic cell
Electric fields uniform distribution, what at lower cost/better effects realized organic wastewater can flocculating.
To achieve the above object, a kind of electrolytic method for improving treatment of Organic Wastewater effect designed by the present invention,
Include the following steps：
1. the filling of electrolytic cell：Controlled material is packed into electrolytic cell；
The controlled material by several auxiliary agent mix after through foaming；
The auxiliary agent includes polyethers, TDI, water, triethanolamine, activated carbon, foaming agent and foam stabiliser；
2. electrolysis is modified：Waste water is passed through in electrolytic cell and carries out electrolysis modification；
3. flocculation sediment：By step 2. treated waste water export, flocculation sediment is carried out after flocculant is added.
It when practical operation, is added in electrolytic cell after auxiliary agent is stirred, a period of time hardening is placed after foaming processing,
Then doing simple trimming can come into operation, and controlled material after molding is a kind of porous material, and activated carbon is evenly distributed in
Inside it so that electrolytic cell internal electric field is more evenly distributed, and the electrolytic condition under Microscopic Angle is more controllable.
Polyethers is also known as polyglycol ether, is a kind of maximum synthetic oil of current sales volume.It is with ethylene oxide, epoxy third
Alkane, epoxy butane etc. are raw material, under the action of catalyst open loop homopolymerization or copolymerization linear polymer obtained.
TDI full name Toluene-2,4-diisocyanate；2,4-tolylene diisocyanate are toluene diisocyanates
The english abbreviation of acid esters arrives light yellow transparent liquid to be colourless.
Flocculant is ferrous sulfate, Polyferric Sulfate, poly-aluminium, PAM, sodium hydroxide and other matter.
Polyferric Sulfate（PAFC）It is a kind of inorganic polymer that developed on the basis of aluminium salt and molysite coagulation Hydrolytic Mechanism
Coagulant water-purifying material is added simple substance iron ion or ferric oxide and other iron containing compounds is compound according to synergistic principle
Made of a kind of new and effective coagulant it collect aluminium salt and molysite respectively advantage, have to the form of aluminium ion and iron ion bright
Aobvious to improve, extent of polymerization greatly improves.
Poly-aluminium color is in yellow or faint yellow, dark brown, Dark grey resinous solid.The product has stronger bridge formation to adsorb
Performance, in hydrolytic process, with the physical and chemical processes such as agglomerate, adsorb and precipitate.Aluminium polychloride is inorganic with tradition
The fundamental difference of coagulant is that traditional inorganic coagulant is low molecule crystal salt, and the structure of aluminium polychloride is changeable by form
Polycarboxy complex compound composition, flocculation sediment speed is fast, be applicable in pH range it is wide, it is non-corrosive to pipe-line equipment, water purification effect
Fruit is apparent, can effectively branch water removal in the heavy metal ion such as chromaticness SS, COD, BOD and arsenic, mercury, the product be widely used in drinking water,
Industrial water and sewage treatment field.
PAM is the abbreviation of Polyacrylamide, Chinese name polyacrylamide.PAM is domestic common nonionic
High polymer coagulant, molecular weight 1,500,000-2,000 ten thousand, commodity concentration is generally 8%.Organic polymer coargulator has in particle
Between form the resulting huge adsorption effect of flco of bigger.
As a preferred embodiment of the above technical solution, the polyethers, TDI, water, triethanolamine, activated carbon, foaming agent and foam are steady
The mass ratio for determining agent is：Polyethers：TDI：Water：Triethanolamine：Activated carbon：Foaming agent：Foam stabiliser=100:(35-55):(2-
5):(0.1-0.8):(10-60):(0.1-20):(0.5-1.5)。
As a preferred embodiment of the above technical solution, the foaming agent is dichloromethane, and the foam stabiliser is silicone oil.
As a preferred embodiment of the above technical solution, 2. modifying agent is added in step into waste water.
Modifying agent is added in waste water and after mixing, waste water is electrolysed one section under the conditions of certain voltage and current
Time, modifying agent adjust according to waste component difference, can also be not added with the modification of modifying agent Direct Electrolysis.
As a preferred embodiment of the above technical solution, the modifying agent is acetic acid, sodium acetate, ethyl alcohol, formaldehyde, iron ion, ferrous iron
The mixture of one or more of ion, magnesium ion, halide ion.
Theoretically speaking modifying agent is the substance that electrochemical reaction can occur with useless Organic substance in water.
As a preferred embodiment of the above technical solution, the volume ratio of quality and waste water that the modifying agent is added is (0.5 ~ 2) g/
100ml。
As a preferred embodiment of the above technical solution, the modifying agent be added in waste water before electrolysis is modified.
As a preferred embodiment of the above technical solution, 2. the middle voltage being electrolysed is 5 ~ 50V to step.
As a preferred embodiment of the above technical solution, the spacing of electrode plate is 10 ~ 20cm in the electrolytic cell.
As a preferred embodiment of the above technical solution, the electrode material in the electrolytic cell is graphite or titanium.
Compared with prior art, the present invention haing the following advantages and advantageous effect：
1. controlled material after molding is a kind of porous material, activated carbon is evenly distributed in inside it so that electric in electrolytic cell
Evenly, the electrolytic condition under Microscopic Angle is more controllable for field distribution；
2. the spacing in filler between active carbon particle can regulate and control according to the dosage of activated carbon, optional for different organic wastewater
Select different active carbon particle spacing；
3. adding different modifying agent for different organic substances so that treated, and organic principle is more easy to and water flocculation point
From；
4. by modified waste water, handled using conventional flocculation sediment, be tightly combined with prior art, is easy industrialization
It is a kind of method of high-concentration waste water low-cost processes 5. this method especially has preferable effect to high-concentration waste water.
Specific implementation mode
With reference to specific embodiment, the present invention is described in further detail：
Embodiment 1 ~ 4 is the electrolytic method for improving treatment of Organic Wastewater effect, is included the following steps：
1. the filling of electrolytic cell：Polyethers, TDI, water, triethanolamine, activated carbon, foaming agent and foam stabiliser are uniformly mixed,
It pours into electrolytic cell and foams, simple trim of progress makes it be adapted with electrolytic cell Internal periphery after placing hardening；
2. electrolysis is modified：Waste water is passed through in electrolytic cell and carries out electrolysis modification, wherein embodiment 1 is added without any modifying agent, real
It applies example 2 ~ 4 and modifying agent is added in the forward direction waste water of electrolysis modification.
1 ~ table of table 4 is respectively the relevant parameter numerical value of electrolytic method described in the embodiment of the present invention.
1 embodiment of table, 1 ~ 4 auxiliary agent and its mass ratio
2 embodiment of table, 1 ~ 4 modifying agent and its mass volume ratio with water
3 embodiment of table, 1 ~ 4 electrolysis modified parameter
4 embodiment of table, 1 ~ 4 waste water and flocculation parameter
By 1 ~ table of table 4 it is found that using electrolytic method of the present invention treated waste water so that the distribution of electrolytic cell internal electric field is more equal
Even, flocculated COD removal rates are up to 56% or more；After adding modifying agent, COD removal rates are promoted, and are electrolysed modified give up
Water is handled using conventional flocculation sediment, is tightly combined with prior art, is more prone to industrialize.
Claims (10)
1. a kind of electrolytic method for improving treatment of Organic Wastewater effect, which is characterized in that include the following steps：
1. the filling of electrolytic cell：Controlled material is packed into electrolytic cell；
The controlled material by several auxiliary agent mix after through foaming；
The auxiliary agent includes polyethers, TDI, water, triethanolamine, activated carbon, foaming agent and foam stabiliser；
2. electrolysis is modified：Waste water is passed through in electrolytic cell and carries out electrolysis modification.
2. a kind of electrolytic method for improving treatment of Organic Wastewater effect according to claim 1, it is characterised in that：Institute
The mass ratio for stating polyethers, TDI, water, triethanolamine, activated carbon, foaming agent and foam stabiliser is：Polyethers：TDI：Water：Three ethyl alcohol
Amine：Activated carbon：Foaming agent：Foam stabiliser=100:(35-55):(2-5):(0.1-0.8):(10-60):(0.1:20):
(0.5-1.5)。
3. a kind of electrolytic method for improving treatment of Organic Wastewater effect according to claim 1 or 2, feature exist
In：The foaming agent is dichloromethane, and the foam stabiliser is silicone oil.
4. a kind of electrolytic method for improving treatment of Organic Wastewater effect according to claim 1, it is characterised in that：Step
Suddenly modifying agent is 2. added into waste water.
5. a kind of electrolytic method for improving treatment of Organic Wastewater effect according to claim 4, it is characterised in that：Institute
It is one or more of acetic acid, sodium acetate, ethyl alcohol, formaldehyde, iron ion, ferrous ion, magnesium ion, halide ion to state modifying agent
Mixture.
6. a kind of electrolytic method for improving treatment of Organic Wastewater effect according to claim 4 or 5, feature exist
In：The volume ratio of quality and waste water that the modifying agent is added is (0.5 ~ 2) g/100ml.
7. a kind of electrolytic method for improving treatment of Organic Wastewater effect according to claim 4 or 5, feature exist
In：The modifying agent be added in waste water before electrolysis is modified.
8. a kind of electrolytic method for improving treatment of Organic Wastewater effect according to claim 1 or 4, feature exist
In：2. the middle voltage being electrolysed is 5 ~ 50V to step.
9. a kind of electrolytic method for improving treatment of Organic Wastewater effect according to claim 1, it is characterised in that：Institute
The spacing for stating electrode plate in electrolytic cell is 10 ~ 20cm.
10. a kind of electrolytic method for improving treatment of Organic Wastewater effect according to claim 1, it is characterised in that：
Electrode material in the electrolytic cell is graphite or titanium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810372477.0A CN108502988A (en) | 2018-04-24 | 2018-04-24 | A kind of electrolytic method for improving treatment of Organic Wastewater effect |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810372477.0A CN108502988A (en) | 2018-04-24 | 2018-04-24 | A kind of electrolytic method for improving treatment of Organic Wastewater effect |
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| CN108502988A true CN108502988A (en) | 2018-09-07 |
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| CN201810372477.0A Pending CN108502988A (en) | 2018-04-24 | 2018-04-24 | A kind of electrolytic method for improving treatment of Organic Wastewater effect |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4260484A (en) * | 1979-03-29 | 1981-04-07 | Standard Oil Company (Indiana) | Process for renewing the adsorptive capacity of a bed of active carbon |
| CN1681748A (en) * | 2002-09-17 | 2005-10-12 | 巴斯福股份公司 | Foam formed by carbon and having high inner face acreage and preparing method thereof |
| CN200972883Y (en) * | 2006-08-01 | 2007-11-07 | 傅理平 | Metal foam battery |
| CN101624228A (en) * | 2009-08-06 | 2010-01-13 | 浙江工业大学 | Pipe-type packed bed electrolyzing device and method for treating organic wastewater |
| KR20130109269A (en) * | 2012-03-27 | 2013-10-08 | 한국세라믹기술원 | Manufacturing method of silicon-active carbon composites for electrode active material |
| CN103626264A (en) * | 2013-09-27 | 2014-03-12 | 苏州国环环境检测有限公司 | Method for treating phenolic wastewater by using three-dimensional electrode |
| CN104891610A (en) * | 2015-05-25 | 2015-09-09 | 北京华瑞创源环保科技有限公司 | Heterotopic electro-flocculation device and method |
| CN107522267A (en) * | 2017-09-19 | 2017-12-29 | 华东师范大学 | A kind of multistage out-phase three-dimensional electrochemical reaction unit for waste water treatment |
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2018
- 2018-04-24 CN CN201810372477.0A patent/CN108502988A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4260484A (en) * | 1979-03-29 | 1981-04-07 | Standard Oil Company (Indiana) | Process for renewing the adsorptive capacity of a bed of active carbon |
| CN1681748A (en) * | 2002-09-17 | 2005-10-12 | 巴斯福股份公司 | Foam formed by carbon and having high inner face acreage and preparing method thereof |
| CN200972883Y (en) * | 2006-08-01 | 2007-11-07 | 傅理平 | Metal foam battery |
| CN101624228A (en) * | 2009-08-06 | 2010-01-13 | 浙江工业大学 | Pipe-type packed bed electrolyzing device and method for treating organic wastewater |
| KR20130109269A (en) * | 2012-03-27 | 2013-10-08 | 한국세라믹기술원 | Manufacturing method of silicon-active carbon composites for electrode active material |
| CN103626264A (en) * | 2013-09-27 | 2014-03-12 | 苏州国环环境检测有限公司 | Method for treating phenolic wastewater by using three-dimensional electrode |
| CN104891610A (en) * | 2015-05-25 | 2015-09-09 | 北京华瑞创源环保科技有限公司 | Heterotopic electro-flocculation device and method |
| CN107522267A (en) * | 2017-09-19 | 2017-12-29 | 华东师范大学 | A kind of multistage out-phase three-dimensional electrochemical reaction unit for waste water treatment |
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Application publication date: 20180907 |
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