CN201850163U - Environment friendly technology (EFT) sewage treatment electrolysis equipment - Google Patents

Environment friendly technology (EFT) sewage treatment electrolysis equipment Download PDF

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Publication number
CN201850163U
CN201850163U CN2010205109614U CN201020510961U CN201850163U CN 201850163 U CN201850163 U CN 201850163U CN 2010205109614 U CN2010205109614 U CN 2010205109614U CN 201020510961 U CN201020510961 U CN 201020510961U CN 201850163 U CN201850163 U CN 201850163U
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graphite linings
electrolyzer
plate
layer
eft
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蒋亚熙
张定军
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蒋亚熙
张定军
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Abstract

The utility model relates to sewage treatment electrolysis equipment of an environment friendly technology (EFT), which comprises electrode plates and a device used for fixing the electrode plates, wherein the electrode plates comprise an anode plate and a cathode plate. When the electrolysis equipment is adopted, the sewage after being treated can be discharged within the controlling index of the national standard, and in addition, the service life of the electrode plates is greatly prolonged.

Description

EFT sewage disposal electrolyzer
Technical field
The utility model relates to the sewage disposal electrolyzer of a kind of environmental friendliness technology (EFT, Environment Friendly Technology).
Background technology
The electrochemical process water technology is called as " environmental friendliness " technology (EFT, Environment Friendly Technology).The main points of EFT electrochemical techniques are: electricity flocculation/electric floating/chemical coprecipitation technique is the electrochemical process that the redox reaction principle of Applied Electrochemistry, control are polluted.Feed the direct current of certain voltage in electrolyzer, allow waste water pass through electrolyzer, make the electrolytical negatively charged ion in the waste water shift to anode, and lose electronics and oxidized at anode, positively charged ion is shifted to negative electrode, and obtains electronics and be reduced at negative electrode.Utilize this reaction to make pollutant component generate water-fast throw out, and generate gas and from water, overflow, make purification of waste water.
It is general chemical method that electrochemical process is disposed of sewage, 1/3 of method running costs such as physics method, and also technology is simple, and easy to operate, the capital construction floor space is few, and disposing of sewage can qualified discharge steady in a long-term.Electrochemical method is administered sewage, has pharmaceutical chemicalss such as need not to add oxygenant, flocculation agent, and equipment volume is little, and floor space is few, advantages such as convenient and flexible operation.Energy consumption is big (uses the electric energy operation hours long but electrochemical method exists always, general more than 3 hours), (battery lead plate consumption is fast for the cost height, subject matter is passivation, the active metal electrode plate) etc. shortcoming, thereby limited the application of electrochemical method in field of wastewater treatment greatly.
Under the alive outside effect, utilize the anode of solubility, produce a large amount of positively charged ions (as Fe 2+, Al 3+Deng), waste water is carried out coagulative precipitation, this method is called electrocoagulation.Electrocoagulation often is accompanied by air supporting, has hydrogen to be reduced at negative electrode, is called the floating method that goes up of electrocoagulation so also have.Electrode reaction is as follows:
Anode: Fe-2e → Fe 2+Or Al-3e → Al 3+
Negative electrode: 2H ++ 2e → H 2Individual or O x+ ne → Re
In several electrochemical treatment waste water types, electrocoagulation and electric pneumatically supported utilization comparative maturity.Compare with chemical coagulation, the electrocoagulation method need not to invest the dosing facility, and materials consumption will reduce a lot.Its defective is energy consumption problem.Iron ion or aluminum ion combine with hydroxide radical and play cohesion.Simultaneously, in negative electrode generation reduction reaction, the hydrogen of effusion forms minimum bubble, with the floating fluid surface of going up electrolyzer of the condensation product in the waste water.Electrocoagulation has obtained application very early as a kind of effective means of wastewater treatment, but since its unit aluminium, iron loss material are excessive in actual applications, the development of electrocoagulation and application are restricted.
Wastewater treatment method generally adopts physico-chemical process shunting-----comprehensive two sections processing at present.Leading portion is handled many branch three class water; Chromium water, cyanogen water and integrated water (copper nickel zinc water).Chromium water directly merges with preceding two strands of water and is integrated water with the reductive agent reduction that makes it to appraise at the current rate, cyanogen water two-stage oxidation broken cyanide, copper nickel zinc water.Back segment is handled integrated water, basically be with alkali (caustic soda or lime), polymerize aluminum chloride (PAC) and organic floculant (PAM), concrete operations are: the pH value of integrated water is adjusted to 10--13, and alkali concn forces the reaction of alkali and heavy metal to be carried out to the direction that generates oxyhydroxide greatly.Because pH value>9 drop to below 9 the pH value thereby discharge outlet needs to use acid to neutralize again.This belongs to traditional treatment process, has many deficiencies.The for example division of three sewage of pre-treatment does not meet and produces reality, and chromium water is in the majority with 3 elements based on cyanogen, copper nickel zinc three Heshuis based on chromium, cyanogen water.These practical situation are to find in the practice of wastewater treatment, and the waste water of nearly all enterprise is not always the case.Because all contaminations all exists in the sewage of second section processing, is difficult to make terminal water qualified discharge with simple pharmaceutical chemistry method.Leading portion is handled the processing requirements that can not reach reverse osmosis membrane, and the treatment operating costs height again can not qualified discharge.Back segment has been processed into the direction and goal that each tame sewage disposal enterprise is pursued.
Simultaneously; electrochemical process is disposed of sewage in the process; after electrolysis for some time; passivation phenomenon can take place in anode, and scale problems can take place negative electrode, and electrode surface adheres to one deck oxide film during passivation; showing as anodic stripping stops; the sewage of handling can not qualified discharge, and electrode materials, electric energy consumption are big, and sewage disposal running cost is high.These problems are perplexing the application of electrochemical process in the sewage disposal production always.
And the solubility electrode that adopts at present both at home and abroad extensively mostly is iron plate, aluminium sheet, and as the flocculation agent of disposing of sewage, but the battery lead plate materials consumption is too high, and incrustation is easily aging easily, and work-ing life, short (about 30 days) increased cost for wastewater treatment.
The utility model content
The inventor has successfully studied EFT sewage disposal electrolyzer through on the basis of lot of experiments.
According to the technical solution of the utility model, it is realized in the following way:
(1) a kind of electrolyzer is characterized in that, this electrolyzer comprises battery lead plate and is used for fixing the device of battery lead plate.
(2), it is characterized in that described battery lead plate comprises positive plate, negative plate and optional rebound according to the electrolyzer of (1).
According to the electrolyzer of (1) or (2), it is characterized in that (3) described battery lead plate is fixedly connected by devices such as electrode anchors.
According to aforementioned each electrolyzer, it is characterized in that (4) described battery lead plate is fixedly connected by battery lead plate top anchor.
According to aforementioned each electrolyzer, it is characterized in that (5) this electrolyzer comprises a negative plate, positive plate and between negative plate and positive plate at least two, preferred three rebounds at least.
(6) according to aforementioned each electrolyzer, it is characterized in that this electrolyzer also comprises blowdown apparatus.
According to the electrolyzer of (6), it is characterized in that (7) described blowdown apparatus comprises that come-up dirt discharge groove, come-up blow-off pipe, come-up blowdown scraper plate and come-up blowdown scrape panel guide.
(8) according to aforementioned each electrolyzer, it is characterized in that described electrolyzer is electrolyzer or bed electrolysis.
(9) a kind of suite of equipment of EFT sewage disposal is characterized in that, comprises aforementioned each described electrolyzer.
(10) according to (9) described suite of equipment, it is characterized in that, comprise that also EFT-pH regulates machine, mud-water separation case, clear water collecting tank and optional mud collecting tank automatically.
(11) according to (9) or (11) described suite of equipment, it is characterized in that also comprise the carbon granule filtration tank, its clear water that is used for the clear water collecting tank is obtained carries out secondary treatment.
In the utility model, the positive plate that uses can be the positive plate of routine, but preferably use the applicant in submit on the same day, the utility model name is called the patent application of " positive plate of EFT inertia combined electrode and preparation method thereof; comprise the electrolyzer of this positive plate ", it is incorporated herein by reference in full.
According to preferred embodiment of the present utility model, described positive plate comprises multilayered structure, at least by the reactive metal layer of internal layer, and forms at the 3-tier architecture of the graphite linings of described reactive metal both sides.Preferably in a side of this multilayered structure, also be provided with insulation material layer and graphite linings successively between described reactive metal and graphite linings, this side multilayered structure ecto-entad is followed successively by graphite linings, insulation material layer, graphite linings and reactive metal layer.
According to aforesaid positive plate, wherein between the reactive metal of opposite side and graphite linings, be provided with insulation material layer and graphite linings successively simultaneously, promptly this opposite side multilayered structure ecto-entad is followed successively by graphite linings, insulation material layer, graphite linings and reactive metal layer.
According to aforesaid positive plate, wherein in a side of this multilayered structure, also be provided with reactive metal layer and insulation material layer between described graphite linings and reactive metal, this side multilayered structure ecto-entad is followed successively by graphite linings, reactive metal layer, insulation material layer and reactive metal layer.
According to aforesaid positive plate, wherein at the opposite side of this multilayered structure, also be provided with reactive metal layer and insulation material layer between described graphite linings and reactive metal, this side multilayered structure ecto-entad is followed successively by graphite linings, reactive metal layer, insulation material layer and reactive metal layer.
According to aforesaid positive plate, it is characterized in that the graphite skin of this side, also be provided with one deck reactive metal layer.
According to aforementioned described positive plate, wherein said insulation material layer is a frp layer.
Preferred positive plate is made of successively following 7 layers of structure: graphite linings, frp layer, graphite linings, reactive metal layer, graphite linings, frp layer and graphite linings.
In the utility model, the negative plate that uses can be the negative plate of routine, but preferably use the applicant in submit on the same day, the utility model name is called the patent application of " negative plate of EFT inertia combined electrode and preparation method thereof; comprise the electrolyzer of this negative plate ", it is incorporated herein by reference in full.
According to the technical solution of the utility model, described negative plate comprises multilayered structure, and it is formed by the middle layer of internal layer and at the 3-tier architecture of the graphite linings of both sides, described middle layer at least.Described middle layer is reactive metal layer, stainless steel layer or carbon steel layer, and reactive metal layer wherein is iron layer or aluminium lamination.
According to aforesaid negative plate, wherein, also be provided with reactive metal layer and graphite linings from inside to outside successively in the graphite linings outside of a side of this multilayered structure.
According to aforesaid negative plate, wherein, also be provided with reactive metal layer and graphite linings from inside to outside at the graphite skin of the opposite side of this multilayered structure.
According to aforesaid negative plate,,, also be provided with insulation material layer, graphite linings, reactive metal layer and graphite linings from inside to outside in the described graphite linings outside wherein in the one or both sides of this multilayered structure.
According to aforesaid negative plate, it is characterized in that between the graphite linings of one or both sides and middle layer, also being provided with insulation material layer.
According to preferred embodiment of the present utility model, described insulation material layer is a frp layer.More preferably described frp layer is the composite layer of Resins, epoxy and glass fibre.
According to the preferred technical scheme of the utility model, it is realized in the following way:
A kind of negative plate is characterized in that, this battery lead plate is made up of 3-tier architecture at least, and it comprises graphite linings successively, reactive metal layer and graphite linings, and described reactive metal is iron or aluminium.
According to the utility model, described negative plate is made up of 3-tier architecture at least, and it is made up of graphite linings, carbon steel flaggy, graphite linings successively.
According to the utility model, preferred negative plate is made up of at least 7 layers of structure, and it comprises graphite linings, reactive metal layer, graphite linings, frp layer, graphite linings, reactive metal layer and graphite linings successively.
According to the utility model, preferred negative plate is made up of at least 7 layers of structure, and it comprises graphite linings, carbon steel flaggy, graphite linings, frp layer, graphite linings, carbon steel flaggy and graphite linings successively.
According to another preferred embodiment of the present utility model, described negative plate is made up of at least 5 layers of structure, and it comprises graphite linings, reactive metal layer, graphite linings, reactive metal layer and graphite linings successively.
Be used for rebound of the present utility model, can referring to the applicant in application on the same day, the utility model name is called the patent application of " rebound of EFT inertia combined electrode and preparation method thereof; comprise the electrolyzer of this rebound ", it is incorporated herein by reference in full.
Although rebound of the present utility model directly is not connected with additional power source, in electrolyzer, in fact rebound of the present utility model itself be equivalent to have concurrently simultaneously the characteristic of positive plate and negative plate.
The basic structure of rebound is as follows:
A kind of battery lead plate, it comprises four-layer structure at least, comprises graphite linings, middle layer, graphite linings and outer field four-layer structure.
According to aforesaid battery lead plate, wherein said middle layer and skin are respectively reactive metal layer, stainless steel layer or carbon steel layer.
According to aforesaid battery lead plate, reactive metal layer wherein is iron layer or aluminium lamination.
Preferably, also comprise one deck reactive metal layer, stainless steel layer or carbon steel layer in the graphite linings outside of multilayered structure one side, and optional graphite linings.
Preferably, also comprise one deck reactive metal layer, stainless steel layer or carbon steel layer in the outer field outside, and optional graphite linings.
According to aforesaid battery lead plate, wherein in the graphite linings of this multilayered structure one side outside, from inside to outside successively by insulation material layer, graphite linings, reactive metal layer, graphite linings, randomly insulation material layer, and randomly graphite linings form.
Preferred rebound is realized by following mode:
By the 9 layers of structure forming successively of reactive metal layer, graphite linings, frp layer, graphite linings, reactive metal layer, graphite linings, frp layer, graphite linings after graphite linings, the spurt;
According to preferred embodiment of the present utility model, preferred rebound is made up of at least 9 layers of structure, comprises 9 layers of structure of graphite linings, carbon steel flaggy, graphite linings, frp layer, graphite linings, aluminium lamination, graphite linings, frp layer, graphite linings successively.
According to preferred version of the present utility model, described rebound is made up of 4 layers of structure that reactive metal layer, graphite linings, reactive metal layer after graphite linings, the spurt are formed successively at least.Wherein said reactive metal layer also can be substituted by carbon steel layer or stainless steel layer.
According to preferred version of the present utility model, described rebound is made up of at least 4 layers of structure, comprises graphite linings, carbon steel flaggy, graphite linings, aluminium lamination successively.
According to preferred version of the present utility model, 5 layers of structure that described rebound is made of successively reactive metal layer, graphite linings, reactive metal layer and graphite linings after graphite linings, the spurt at least.Wherein said reactive metal layer also can be substituted by carbon steel layer or stainless steel layer.
According to aforesaid battery lead plate, preferably to the reactive metal layer processing of making a spurt.
Preferably increase the inert material layer in rebound of the present utility model, the preferred glass steel is with the bounding force of increasing with reactive metal layer.Described insulating material is preferably frp layer, preferably the frp layer that is composited by Resins, epoxy and glass fibre.
According to the technical solution of the utility model, rebound most preferably of the present utility model is made up of following structure:
By the 9 layers of structure forming successively of iron layer, graphite linings, frp layer, graphite linings, aluminium lamination, graphite linings, frp layer, graphite linings after graphite linings, the spurt;
By the 4 layers of structure forming successively of iron layer, graphite linings, aluminium lamination after graphite linings, the spurt;
By the 5 layers of structure forming successively of iron layer, graphite linings, aluminium lamination and graphite linings after graphite linings, the spurt;
9 layers of structure by graphite linings, carbon steel flaggy, graphite linings, frp layer, graphite linings, aluminium lamination, graphite linings, frp layer, graphite linings are formed;
4 layers of structure forming successively by graphite linings, carbon steel flaggy, graphite linings, aluminium lamination.
In above-mentioned battery lead plate, use the reason of graphite to be that the graphite difficult drop-off is difficult for being etched, therefore increase graphite after, can not produce passivation on the top layer of electrode, thus work-ing life of guard electrode plate effectively; Also guaranteed simultaneously the stable distribution of electrolytic cell currents density between anode and negative electrode setpoint distance, the waste water after the processing can qualified discharge and energy long-term stability.
Because graphite is inert material, itself has unique acidproof, alkaline-resisting, high temperature resistant and superior conductivity, bonding by rational scientific and technological technology and glass reinforced plastic, reactive metal, after processing is combined into EFT inertia combined electrode, solved electrochemical techniques and handled in the waste water process, battery lead plate easily stains, easily fouling, perishable, easy passivation, work-ing life problem such as weak point, running cost height; And can in setting range, discharge in order by control electrode plate positive plate, negative plate energy life-time service, and heavy metal can reclaim.The wastewater treatment efficiency long-term stability.
Graphite linings can be selected the graphite of various different materials for use, preferred expanded graphite, and more preferably content is the high-quality expanded graphite more than 99.8%.
The effect that selection of the present utility model adds rebound is can reduce electric current and strengthen the wastewater treatment ability.When in the electrolyzer that positive plate and negative plate are formed during no rebound, under the same water quality, the monopolar system electric current can be greater than 1000A, but when having rebound, then the multipole scott connection electric current of same water quality is no more than 800A, preferably be no more than 600A,, be most preferably not exceeding 400A more preferably no more than 500A.
When adopting direct supply, when in the middle of negative plate and positive plate, using rebound, preferably at least 2 rebounds, more preferably at least 3 rebounds.If when adopting high-voltage pulse and high frequency pulse power supply, rebound can be unrestricted, for example can be the rebound more than 1 or 2.
Consider that for economy battery lead plate preferably uses iron or aluminium sheet to wastewater treatment.
In order to make battery lead plate and the bounding force between the adjacent layers carry out electrolytic reaction stronger, preferably to the processing of making a spurt of the battery lead plate of this electrolytic reaction.If comprise this battery lead plate of multilayer, can select the processing of making a spurt of partial electrode plate.Need not to increase other tackiness agent in the battery lead plate that spurt is handled.
In order to make wastewater treatment more complete, can the antianode plate and rebound bore a hole, the shape in hole can be for groove shape, circle, ellipse, square etc., and is preferred oval and circular, more preferably oval.Preferably contain 10-40 hole, preferred 15-30 hole, more preferably 20-24 hole.The lf dose that pore size need discharge with processing waste water requires and decides.
According to preferred embodiment of the present utility model, the utility model increases by a cover blowdown apparatus in electrolyzer.Because battery lead plate carries out after the electrochemical reaction can be in the electrode plate surface deposition by the metal under the electrolysis, if this electrolytic metal is not handled, then can make the surperficial contaminated of battery lead plate, thus the reduction electrolytic efficiency.
Described blowdown apparatus comprises come-up dirt discharge groove 6; Come-up blow-off pipe 7; Come-up blowdown scraper plate 8; Panel guide 9 is scraped in the come-up blowdown
According to the utility model, the preparation technology of described EFT electrolyzer realizes by following manner:
Utilize EFT inertia combined electrode to form 20-40, preferred 24-36, more preferably 26-30 spacing is 80-240mm, preferred 100-200mm, the more preferably electrolyzer of 120-160mm, the electrode connection mode is multipole scott connection, preferably (+00-00+00-), be positive plate, rebound, rebound, negative plate, rebound, rebound, repeat to be arranged in order wiring, perhaps preferred (+000-000+000-), promptly positive plate, rebound, rebound, rebound, negative plate, rebound, rebound, rebound repeat to be arranged in order wiring.
Additional power source 220V, transformation is 12V, 24V, 36V, current density is decided on sewage quality.Cell dimension: long 4000-6000mm, preferred 4200-5600mm, more preferably 4500-4800mm; Wide 800-2000mm, preferred 1000-1500mm; High 1000-2400mm, preferred 1200-1800mm.Per hour can handle 8-10 ton electroplating wastewater.
Pole plate size: long 800-2000mm, preferred 1000-1100mm; Wide 800-2000mm, preferred 1000-1100mm, thick 1.5mm to 10mm, preferred 2-8mm, more preferably 4-6mm.
Adopt electrolyzer of the present utility model, in its optimal technical scheme, initial current is 260-420A, is preferably 275-360A, more preferably 285-400A; Electric current after 10 minutes is 240-386A, preferred 256-300A, more preferably 275-276A; Electric current after 45 minutes is 180-320A, more preferably 206-295A, more preferably 262-270A; Electric current after 60 minutes is 150-300A, preferred 175-265A, more preferably 230-250A.
According to preferred embodiment, initial current 275A, 10 minutes 256A, 45 minutes 206A, 60 minutes 175A.
According to another embodiment, initial current 385A, 10 minutes 275A, 45 minutes 262A, 60 minutes 230A.
According to another embodiment, initial current 360A, 10 minutes 276A, 45 minutes 270A, 60 minutes 265A.
According to another embodiment, initial current 420A, 10 minutes 386A, 45 minutes 295A, 60 minutes 265A.
Sewage treatment technology process of the present utility model is, with sewage, be passed in the sewage disposal device (EFT) that contains the utility model battery lead plate as electroplating sewerage, then by EFT-pH automatically the adjusting machine regulate, to feed respectively in a plurality of mud-water separation casees side by side through the sewage after regulating subsequently, clear water after separating directly feeds in the clear water collecting tank, and impurity is partly fed in the mud collecting tank.Further handle as need, also the clear water that obtains in the clear water collecting tank is fed the carbon granule filtration tank and carry out secondary treatment, the waste water recycling after will handling then or be discharged in the clean water basin stand-by.
Under the alive outside effect, the EFT sewage disposal electrolyzer that use the utility model is combined into through processing, the waste water of processing can be steady in a long-term, the energy qualified discharge, running cost is very low; Problems such as battery lead plate easily wears out in the electrochemical techniques field of wastewater treatment, power consumption height have been solved.For improvement sanitary sewage, industrial sewage have been started new material technology revolution.This material is revolutionary successfully will bring into play positive effect to electrochemical techniques in waste water control, will and protect environment to contribute for the conserve water resource simultaneously.
After using EFT sewage disposal electrolyzer of the present utility model, handle 150 tons of electroplating wastewater work-ing lifes every day more than 400 days, greatly reduce cost for wastewater treatment.
Adopt EFT sewage disposal electrolyzer of the present utility model, can in sewage disposal, reclaim valuable material.Not only can handle the waste water of the single Cr of containing (VI), its ferrite effect and co-precipitation can also be handled and contain Cr (VI), Cr 3+, Cu 2+, Ni 2+, Zn 2+, Cd 2+, Pb 2+Etc. the comprehensive electroplating wastewater of contents of many kinds of heavy metal ion, need not shunting, primary treatment is up to standard, has simplified treatment scheme widely, and the water conditioning after handling.Because electric flocculation process rear end adds milk of lime coagulating sedimentation unit in addition, this has further ensured the removal effect of heavy metal ion.As when handling plating, electrolysis wastewater, can reclaim more than 30 kind of precious metals such as chromium or copper simultaneously; In percolate is handled, heavy metal, desalination, sterilization be can remove, and wherein nitrogen, phosphorus, potassium and organic matter kept, make it become the compound liquid fertilizer of organic-inorganic etc.; When using EFT inertia combined electrode technical finesse sewage to such as the rate of removing of COD, BOD, NH4-N, intestinal bacteria, suspended substance, heavy metal etc. up to 99%.So EFT inertia combined electrode technology occurs, and allows the sewage disposal resource utilization become a reality, and makes traditional sewage disposal idea that a new development arranged.
This EFT sewage disposal electrolyzer, by the processing to electroplating wastewater, more than 30 kind of metal ion can comprise precious metal and heavy metal from aqueous solution electrodeposition to negative electrode EFT inertia combined electrode.The heavy metal processing rate is a hundred per cent almost, and nonmetallic processing rate has also reached 96.5% simultaneously.
EFT electrolyzer of the present utility model can be widely used in handling factory effluents such as various plating, dyestuff, pigment, coating, agricultural chemicals, medicine, veterinary drug, explosive; Refinery water, oil field waste and other fine chemistry industry waste water, has the turbidity removal decolouring, reduce COD, BOD, especially it is more remarkable to decolouring and removal heavy metal effect: after particularly this equipment is used in the automobile washing bay, more can remove stink in the suspended substance in the wastewater from car washer, all kinds of colloid, each bacterioid, dispersed oil, oil in water emulsion, the removal water effectively, wastewater treatment water quality reaches miscellaneous domestic water quality standard.
Description of drawings
Accompanying drawing 1: the utility model EFT sewage disposal electrolyzer schematic perspective view
Accompanying drawing 2: the utility model EFT sewage disposal electrolyzer floor map
Accompanying drawing 3: the utility model EFT sewage disposal electrolyzer diagrammatic cross-section
Accompanying drawing 4: the utility model EFT sewage disposal electrolyzer vertical view
Accompanying drawing 5:EFT sewage disposal electrochemical process schema
Wherein, the implication of each Reference numeral is as follows:
1, electroplating wastewater water-in; 2, the water outlet after the electroplating wastewater processing; 3, positive plate; 4, rebound; 5, negative plate; 6, come-up dirt discharge groove; 7, come-up blow-off pipe; 8, come-up blowdown scraper plate; 9, panel guide is scraped in the come-up blowdown; 10, electrochemical process electric control cabinet; 11, electrode anchor; 12, plate supply Wiring area; 13, cathode power Wiring area; 14, battery lead plate top anchor
Embodiment
Below in conjunction with embodiment the utility model is described further, need to prove, following embodiment can not be as the restriction to the utility model protection domain, any in the improvement of making on the utility model basis all within protection domain of the present utility model.
Shown in accompanying drawing 1-4, EFT sewage disposal electrolyzer of the present utility model comprises electrochemical process electric control cabinet 10, and electroplating wastewater enters by electroplating wastewater water-in 1 and carries out wastewater treatment in the electrolyzer.The arrangement mode of the battery lead plate of electrolyzer of the present utility model inside alternately is arranged in order by positive plate 3, rebound 4, rebound 4, negative plate 5, rebound 4, rebound 4.Utilize described battery lead plate to form 20-40, preferred 24-36, more preferably 26-30 spacing is 80-240mm, preferred 100-200mm, the more preferably electrolyzer of 120-160mm.In order to make battery lead plate fixing in electrolyzer, electrode anchor 11 can be set in the bottom of battery lead plate, this anchor 11 can be installed in the optional position of battery lead plate lower end, but preferably at the lower end medium position.Can also be at battery lead plate upper side installing electrodes plate top anchor 14, so that battery lead plate is more fixing in electrolyzer.Positive plate 3 is connected with additional power source by plate supply Wiring area 12, and negative plate 5 then is connected with additional power source by cathode power Wiring area 13.
In order to increase electrolytic efficiency, the utility model also comprises a cover blowdown apparatus in electrolyzer.Described blowdown apparatus comprises come-up dirt discharge groove 6; Come-up blow-off pipe 7; Come-up blowdown scraper plate 8; Panel guide 9 is scraped in the come-up blowdown
Electrolyzer of the present utility model is started working by the additional power source of 220V, through after the processing of electrolyzer, the electroplating wastewater after handling is discharged by the water outlet after the electroplating wastewater processing 2.
Embodiment 1.EFT sewage disposal device one
As shown in drawings, sewage disposal device of the present utility model inside alternately is arranged in order by positive plate, two rebounds, negative plate, two rebounds, amounts to 31 blocks of plates.
Described positive plate is made up of graphite linings, frp layer, graphite linings, aluminium lamination, graphite linings, frp layer, 7 layers of structure of graphite linings; Wherein the thickness of each graphite linings is more than the 0.5mm; The thickness of aluminium lamination is more than the 1mm; The thickness of frp layer is more than the 0.5mm, and preparation technology is identical with the technology of the utility model rebound, after the employing glue bond flattens, obtains positive plate.
7 layers of structure that reactive metal layer after the reactive metal layer, graphite linings, frp layer, graphite linings, spurt of described negative plate after by graphite linings, spurt and graphite linings are formed are successively formed; Wherein the thickness of each graphite linings is that the iron bed thickness more than the 0.5mm, after the spurt is more than the 0.3mm, and frp layer thickness is more than the 0.5mm, and preparation technology is identical with the technology of the utility model rebound, after the employing glue bond flattens, obtains negative plate.
Reactive metal layer, graphite linings, reactive metal layer and the graphite linings 5 layer structure successively forming of described rebound after by graphite linings, spurt are formed, and wherein the thickness of graphite linings is 1mm, aluminium lamination be 1mm thick more than, more than the iron plate bed thickness 0.3mm of spurt.
Embodiment 2.EFT sewage disposal device two
As shown in drawings, sewage disposal device of the present utility model inside alternately is arranged in order by positive plate, two rebounds, negative plate, two rebounds, amounts to 31 blocks of plates.
Described positive plate is made up of graphite linings, frp layer, graphite linings, aluminum layer, graphite linings, frp layer, 7 layers of structure of graphite linings; Wherein the thickness of each graphite linings is 0.8mm; The thickness of aluminum layer is more than the 1mm; The thickness of frp layer is 0.8mm, and preparation technology is identical with the technology of the utility model rebound, after the employing glue bond flattens, obtains positive plate.
5 layers of structure that described negative plate is made of successively graphite linings, aluminum layer, graphite linings, reactive metal layer, graphite linings are formed; Wherein the thickness of each graphite linings be 0.8mm, more than the thick 1mm of aluminium lamination, preparation technology is identical with the technology of the utility model rebound, adopt glue bond to flatten after, obtain negative plate.
Iron plate layer, graphite linings, frp layer, graphite linings, aluminum layer, graphite linings, frp layer, the graphite linings 9 layer structure successively forming of described rebound after by graphite linings, spurt are formed, wherein the thickness of graphite linings is 0.5mm, an aluminium lamination is that 1mm is thick, more than the iron plate bed thickness 0.3mm of spurt, the glass reinforced plastic bed thickness is 0.5mm.
Embodiment 3.EFT sewage disposal device three
As shown in drawings, sewage disposal device of the present utility model inside alternately is arranged in order by positive plate, two rebounds, negative plate, two rebounds, amounts to 31 blocks of plates.
Described positive plate is made up of graphite linings, frp layer, graphite linings, aluminium lamination, graphite linings, frp layer, 7 layers of structure of graphite linings; Wherein the thickness of each graphite linings is 0.6mm; The thickness of aluminium lamination is 1.2mm; The thickness of frp layer is 0.8mm, and preparation technology is identical with the technology of the utility model rebound, after the employing glue bond flattens, obtains positive plate.
The 3-tier architecture that described negative plate is made of successively graphite linings, aluminium lamination, graphite linings is formed; Wherein the thickness of each graphite linings be 0.6mm, more than the iron bed thickness 0.1mm, preparation technology is identical with the technology of the utility model rebound, adopt glue bond to flatten after, obtain negative plate.
Iron layer, graphite linings, the aluminium lamination 4 layer structure successively forming of described rebound after by graphite linings, the spurt wherein thickness of graphite linings are 0.8mm, and aluminium lamination is that 1mm is thick, more than the iron plate bed thickness 0.1mm of spurt.
Embodiment 4.EFT sewage disposal device four
Sewage disposal device of the present utility model inside alternately is arranged in order by positive plate, two rebounds, negative plate, two rebounds, amounts to 31 blocks of plates.
Described positive plate is made up of 7 layers of structure of graphite linings 1mm, frp layer 0.5mm, graphite linings 0.5mm, aluminium lamination 3mm, graphite linings 0.5mm, frp layer 0.5mm, graphite linings 1mm, preparation technology is identical with the technology of the utility model rebound, after adopting glue bond to flatten, obtain positive plate.
Described negative plate is made up of 7 layers of structure of graphite linings 0.5mm, carbon steel flaggy 0.3mm, graphite linings 0.5mm, frp layer 1mm, graphite linings 0.5mm, carbon steel flaggy 0.5mm, graphite linings 0.5mm; Preparation technology is identical with the technology of the utility model rebound, after the employing glue bond flattens, obtains negative plate.
Described rebound is made up of 9 layers of structure of graphite linings 0.5mm, carbon steel flaggy 0.2mm, graphite linings 0.5mm, frp layer 0.5mm, graphite 0.5mm, aluminium lamination 2mm, graphite linings 0.5mm, frp layer 0.5mm, graphite 0.5mm.
Embodiment 5.EFT sewage disposal device five
Sewage disposal device of the present utility model inside alternately is arranged in order by positive plate, two rebounds, negative plate, two rebounds, amounts to 31 blocks of plates.
Described positive plate is made up of 7 layers of structure of graphite linings 1mm, frp layer 0.5mm, graphite linings 0.5mm, aluminium lamination 3mm, graphite linings 0.5mm, frp layer 0.5mm, graphite linings 1mm, preparation technology is identical with the technology of the utility model rebound, after adopting glue bond to flatten, obtain positive plate.
Described negative plate is made up of the 3-tier architecture of graphite linings 1mm, carbon steel flaggy 0.5mm, graphite linings 1mm; Preparation technology is identical with the technology of the utility model rebound, after the employing glue bond flattens, obtains negative plate.
4 layers of structure of described transition pole plate graphite linings 1mm, carbon steel flaggy 0.5mm, graphite linings 1mm, aluminium lamination 3mm are formed.
Embodiment 6.EFT sewage treatment technology process
As shown in Figure 5, sewage treatment technology process of the present utility model is, with sewage, be passed in the sewage disposal device (EFT) that contains the utility model battery lead plate as electroplating sewerage, then by EFT-pH automatically the adjusting machine regulate, to feed respectively in a plurality of mud-water separation casees side by side through the sewage after regulating then, the clear water after separating directly feeds in the clear water collecting tank, and impurity is partly fed in the mud collecting tank.Further handle as need, also the clear water that obtains in the clear water collecting tank is fed the carbon granule filtration tank and carry out secondary treatment, the waste water recycling after will handling then or be discharged in the clean water basin stand-by.
The application of embodiment 7.EFT sewage disposal electrolyzer
Example one: utilize EFT inertia combined electrode to dispose of sewage
Example 1 when utilizing EFT inertia combined electrode to dispose of sewage
Electroplating wastewater at 150 tons of certain Electroplate Factory's day outputs carries out wastewater treatment by the technology of embodiment 5, utilizes the EFT inertization equipment one of the utility model embodiment 1 to handle after 60 minutes, and water quality can be used for reuse, reaches country's 2008 special emission standards.
Utilize EFT inertia combined electrode to form the electrolyzer of 30 spacings for 160mm.The electrode connection mode be multipole scott connection (+00-00+00-), additional power source 220V transformation is 12V, 24V, 36V, current density is shown sewage quality and is decided.Cell dimension: long 4800mm, wide 1500mm, high 1800mm (per hour handling 10 tons of electroplating wastewaters)
Battery lead plate size: long 1100mm, wide 1100mm, thick (1.5mm to 5.5mm)
Initial current 360A, 10 minutes 276A, 45 minutes 270A, 60 minutes 265A
The sewage of handling 60 minutes has local environmental monitoring station monitoring, and data results is:
Table one
Example 2 when utilizing EFT inertia combined electrode to dispose of sewage
Copper plating wastewater at 1000 tons of certain electronic circuit company limited day outputs carries out wastewater treatment by the technology of embodiment 5, utilize the EFT inertia electrolyzer two of the utility model embodiment 2 to handle after 60 minutes, water quality can be used for reuse, reaches country's 2008 special emission standards.
Utilize EFT inertia combined electrode to form the electrolyzer of 30 spacings for 160mm.The electrode connection mode be multipole scott connection (+00-00+00-) additional power source 220V transformation is 12V, 24V, 36V, current density is shown sewage quality and is decided.Cell dimension: long 4800mm, wide 1400mm, high 1800mm (per hour handling 10 tons of electroplating wastewaters).Battery lead plate size: long 1000mm, wide 900mm, thick (1.5mm to 6.5mm).Initial current 275A, 10 minutes 256A, 45 minutes 206A, 60 minutes 175A
The sewage of handling 60 minutes has the monitoring of local environmental monitoring station, data results as shown in Table 2:
Table two
Pollutent Total copper COD? Ammonia nitrogen PH value
Influent concentration/mg/L 15.3? 264? 6.13? 8.5?
Go out water concentration/mg/L 0.050L? 16.8? 4.94? 7.3?
Example 3 when utilizing EFT inertia combined electrode to dispose of sewage
Electroplating wastewater at 300 tons of certain Electroplate Factory's day outputs carries out wastewater treatment by the technology of embodiment 5, utilize the EFT inertia electrolyzer of the utility model embodiment 4 to manage 60 minutes everywhere after, water quality can be used for reuse, reaches country's 2008 newly-built emission standards.
Utilize EFT inertia combined electrode to form the electrolyzer of 24 spacings for 160mm.The electrode connection mode be multipole scott connection (+00-00+00-).Additional power source 220V transformation is 12V, 24V, 36V, and current density is shown sewage quality and decided.Cell dimension: long 4800mm, wide 1800mm, high 1800mm (per hour handling 10 tons of electroplating wastewaters).Battery lead plate size: long 1200mm, wide 1100mm, thick (1.5mm to 8mm).Initial current 385A, 10 minutes 275A, 45 minutes 262A, 60 minutes 230A
The sewage of handling 60 minutes has the monitoring of local environmental monitoring station, data results as shown in Table 3:
Table three
Pollutent Total chromium Total Nickel Total copper COD? PH value
Influent concentration/mg/L 73.3? 18.4? 15.3? 451? 1.7?
Go out water concentration/mg/L 0.037? 0.1? 0.060? 63? 7.2?
Example 4 when utilizing EFT inertia combined electrode to dispose of sewage
Electroplating wastewater at 2000 tons of certain Electroplate Factory's day outputs carries out wastewater treatment by the technology of embodiment 5, utilizes the EFT inertia electrolyzer five of the utility model embodiment 5 to handle after 60 minutes, and water quality can be used for reuse, reaches country's 2008 newly-built emission standards.
Utilize EFT inertia combined electrode to form the electrolyzer of 30 spacings for 180mm.The electrode connection mode be multipole scott connection (+000-000+000-).Additional power source 220V transformation is 12V, 24V, 36V, and current density is shown sewage quality and decided.Cell dimension: long 4800mm, wide 1500mm, high 1800mm (per hour handling 10 tons of electroplating wastewaters).Pole plate size: long 1100mm, wide 1100mm, thick (1.5mm to 10mm).Initial current 420A, 10 minutes 386A, 45 minutes 295A, 60 minutes 265A.
The sewage of handling 60 minutes has local environmental monitoring station monitoring, and data results is shown in following table four:
Table four

Claims (11)

1. an electrolyzer is characterized in that, this electrolyzer comprises battery lead plate and is used for fixing the device of battery lead plate.
2. electrolyzer according to claim 1 is characterized in that described battery lead plate comprises positive plate and negative plate.
3. electrolyzer according to claim 1 is characterized in that described battery lead plate comprises positive plate, negative plate and rebound.
4. according to each described electrolyzer of claim 1-3, it is characterized in that described battery lead plate is fixedly connected by the electrode anchor.
5. electrolyzer according to claim 4 is characterized in that, described battery lead plate is fixedly connected by battery lead plate top anchor.
6. electrolyzer according to claim 5 is characterized in that, described electrolyzer comprises a negative plate, positive plate and at least two rebounds between negative plate and positive plate at least.
7. electrolyzer according to claim 6 is characterized in that described electrolyzer also comprises blowdown apparatus.
8. electrolyzer according to claim 7 is characterized in that, described blowdown apparatus comprise the come-up dirt discharge groove, the come-up blow-off pipe, the come-up blowdown scraper plate and the come-up blowdown scrape panel guide.
9. the suite of equipment of an EFT sewage disposal is characterized in that, comprises each described electrolyzer of claim 1-8.
10. suite of equipment according to claim 9 is characterized in that, comprises that also EFT-pH regulates machine, mud-water separation case, clear water collecting tank and mud collecting tank automatically.
11., it is characterized in that according to claim 9 or 10 described suite of equipment, also comprise the carbon granule filtration tank, its clear water that is used for the clear water collecting tank is obtained carries out secondary treatment.
CN2010205109614U 2010-08-30 2010-08-30 Environment friendly technology (EFT) sewage treatment electrolysis equipment Expired - Fee Related CN201850163U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012028054A1 (en) * 2010-08-30 2012-03-08 Jiang Yaxi Environment friendly technology inert composite electrode plate and preparation method thereof and electrolysis equipment containing the palte
CN106430430A (en) * 2015-08-11 2017-02-22 山东卓展环保科技有限公司 Electrochemical sewage treatment system and sewage treatment method thereof
CN108275809A (en) * 2018-01-31 2018-07-13 常州市武进天工机械制造有限公司 Chemical nickel plating, electroplated zinc nickel alloy wastewater treatment method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012028054A1 (en) * 2010-08-30 2012-03-08 Jiang Yaxi Environment friendly technology inert composite electrode plate and preparation method thereof and electrolysis equipment containing the palte
CN106430430A (en) * 2015-08-11 2017-02-22 山东卓展环保科技有限公司 Electrochemical sewage treatment system and sewage treatment method thereof
CN108275809A (en) * 2018-01-31 2018-07-13 常州市武进天工机械制造有限公司 Chemical nickel plating, electroplated zinc nickel alloy wastewater treatment method

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