CN201785224U - Waste water electrolysis treatment system - Google Patents
Waste water electrolysis treatment system Download PDFInfo
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- CN201785224U CN201785224U CN201020264071XU CN201020264071U CN201785224U CN 201785224 U CN201785224 U CN 201785224U CN 201020264071X U CN201020264071X U CN 201020264071XU CN 201020264071 U CN201020264071 U CN 201020264071U CN 201785224 U CN201785224 U CN 201785224U
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- treatment system
- waste water
- wastewater
- water
- electrolytic treatment
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Abstract
A waste water electrolysis treatment system belongs to the technical field of waste water electrocoagulation treatment and comprises a waste water collecting tank and a saline tank. The waste water electrolysis treatment system is characterized by further comprising an NaOH storage tank, an electrolysis case, a sedimentation tower and a sludge thickening tank. Tap water is respectively filled into the NaOH storage tank, the saline tank and the electrolysis case via water inlet conveying pipes, an inlet end of the electrolysis case is connected with an outlet of a first fixed mixer via a pipeline, an outlet end of the electrolysis case is connected with an inlet of a second fixed mixer via a pipeline, the waste water collecting tank, the saline tank and the NaOH storage tank are respectively connected with an inlet of the first fixed mixer via respective liquid outlet pipes, the NaOH storage tank is further connected with the inlet of the second fixed mixer via another liquid outlet pipe, an outlet of the second fixed mixer is connected with the sedimentation tower via a conveying pipeline, and a water outlet is arranged on the sedimentation tower. The waste water electrolysis treatment system solves the problems of poor waste water treatment effect and incapability of meeting emission standards of a waste water treatment method in the prior art, and provides a waste water electrolysis treatment system.
Description
Technical field
The utility model relates to a kind of Waste Water Treatment, particularly relates to a kind of wastewater electrolytic treatment system that utilizes electric flocculation technique to handle waste water.
Background technology
Along with environmental pollution is on the rise, environmental improvement has become the global problem that can not be ignored with protection.Modern industry is chemical industry especially, is easy to generate a large amount of trade effluents, if untimely effective processing will bring significant damage to environment.But a difficult problem of isolating or removing pollutent from water system has become puzzlement this area challenge for many years.Originally, water treatment only is to be suitable for causing that by adding material, filtration, ion-exchange and other method of some species precipitate carry out simply.Along with improving constantly that clean water is strict with, people have adopted the chemical flocculation method.But adopt the chemical flocculation method, have following shortcoming: 1, the flco of Xing Chenging loosens, influences flocculating effect.2, it is more to drop into metal ion dosage, and processing cost is higher.3, can only produce throwing out, processing mode is single, and water treatment effect is relatively poor.When 4 influent qualities change, the treatment effect susceptible to, wayward.5, dropping into metal ion is departure process, may cause stabilization again, influences flocculating effect.6, metal ion adds with compound form, and the water outlet anion-content is increased greatly.
Electric flocculation technique is world today's latest generation sewage disposal technology at present.Utilize electrochemical water reaction principle, impressed voltage produces electrochemical reaction, electric energy is converted into chemical energy, organic or inorganic pollutent in the waste water is carried out oxidation and reduction reaction, condense, floating removing separate pollutent from water body, can remove various noxious pollutants such as COD in the waste water, heavy metal, SS, oil, phosphoric acid salt effectively; Improve simultaneously the biodegradability of waste water greatly.
The utility model content
To handle the waste water effect relatively poor in order to solve in the prior art wastewater treatment mode, do not reach the problem of emission standard, the utility model provides a kind of wastewater electrolytic treatment system, utilize direct current to carry out the solution oxide reduction reaction, can once remove all contaminations, device is compact, floor space is little, save once investment, easily is automated.
Principle of work of the present utility model
(1) electrolytic flocculation
Utilize solubility electrode such as iron, aluminium, behind the logical direct current, anode loses electronics, forms metallic cation Fe
2+, Al
3+, through a series of hydrolysis, polymerization and oxidising process, forming highly active adsorption-flocculation group, adsorptive power is extremely strong, and colloidal state impurity, suspended impurity coagulative precipitation in the water are separated.Simultaneously, the swimming in electric field of charged contaminant particle, its Partial charge is neutralized by electrode and impels it to take off steady coagulation.Its flocculating effect is better than common flocculation agent.
(2) electrolytic oxidation
Under the effect of DC electric field, all contaminations in the waste water directly loses electronics and oxidizing reaction takes place at the battery lead plate anode, utilizes the lower negatively charged ion of electrode potential in the solution simultaneously, as OH
-, Cl
-Lose electronics at anode surface and generate new stronger oxygenant active substance, as [O], [OH], ClO
-Deng.BOD5, COD etc. in these active substance oxygenolysis water.
(3) electrolytic reduction
Waste water is in electrolytic process, and the positively charged ion in the pollutent at first obtains electronics at negative electrode, make in the ionogen high price or at a low price metallic cation obtain electronics at negative electrode and directly be reduced to positively charged ion or precipitated metal at a low price.
(4) electrofloatation
Electrofloatation is that waste water is carried out electrolysis, and water molecules ionization produces H
+And OH
-, directional migration under electric field driven, and separate out hydrogen and oxygen respectively at negative plate and positive plate surface.Newly-generated bubble diameter is very small, is about 10～30 μ m, and bubbles dispersion degree height, adheres to the suspended solids in the water and floats the removal of realization pollutent impurity particle as carrier.
In order to achieve the above object, the technical scheme that the utility model adopted is:
A kind of wastewater electrolytic treatment system, comprise wastewater collecting basin, salt solution filling, it is characterized in that: also comprise NaOH storage filling, electrolyte tank, settling tower, sludge thickener, chamber-type press filter and two static mixers, described tap water passes through the water inlet transfer lime respectively and feeds in NaOH storage filling, salt solution filling, the electrolyte tank, the entrance end of described electrolyte tank is connected with the outlet of first static mixer by pipeline, and the exit end of electrolyte tank is connected with the second static mixer import by pipeline; Described wastewater collecting basin, salt solution are irritated, NaOH storage filling is connected with the first static mixer import by drain pipe separately, described NaOH storage is irritated and also is connected with the second static mixer import by another drain pipe, the outlet of described second static mixer is connected with settling tower by transport pipe, and settling tower is provided with water outlet.
Aforesaid a kind of wastewater electrolytic treatment system is characterized in that: be provided with coupled sludge thickener at the rear portion of settling tower, described sludge thickener also is connected with chamber-type press filter by pipeline.
Aforesaid a kind of wastewater electrolytic treatment system is characterized in that: be provided with online PH instrument between electrolyte tank entrance end and the outlet of first static mixer, also be provided with online PH instrument between outlet of second static mixer and settling tower.
Aforesaid a kind of wastewater electrolytic treatment system is characterized in that: be provided with air compressor on the electrolyte tank side, air compressor is gone into compressed air delivery in the electrolyte tank by gas transmission pipeline, pneumatic blending when being used for electrolysis.
Aforesaid a kind of wastewater electrolytic treatment system is characterized in that: electrolyte tank is provided with and is used for and will produces the blower fan that gas is discharged after the electrolysis.
Aforesaid a kind of wastewater electrolytic treatment system is characterized in that: be provided with the concentration of metal ions instrument of measuring ionic concn in the drainage water at the water outlet place of settling tower.
Aforesaid a kind of wastewater electrolytic treatment system is characterized in that: be provided with air compressor at sludge thickener and chamber-type press filter side, air compressor is conveyed into pressurized air respectively in sludge thickener and the chamber-type press filter by gas transmission pipeline.
Aforesaid a kind of wastewater electrolytic treatment system, it is characterized in that: chamber-type press filter is provided with return water pipe, and described return water pipe is connected with the water inlet transfer lime.
Aforesaid a kind of wastewater electrolytic treatment system is characterized in that: electrolyte tank is provided with the bleed valve that uses when cleaning.
Aforesaid a kind of wastewater electrolytic treatment system is characterized in that: be contained with concentration in described NaOH storage is irritated and be 15% NaOH solution.
The beneficial effects of the utility model are:
Select different electrolytic pole board materials for use according to the difference of pollution substance in the sewage, produce effects such as flocculation by force, strong oxidation, strong reduction, strong air supporting.Have the following advantages: 1, flco is big and closely knit, and settling property is good.2, successive nonequilibrium process during electrolysis treatment stabilization again can not occur.3, the metal ion of Chan Shenging has very high reactive behavior, thereby has reduced the dosage of required metal ion, and processing cost is lower.4, can not increase foreign ion in the water outlet.5, have various wastewater processing modes such as flocculation, air supporting, oxidation, reduction simultaneously, water treatment effect is better.6, facility compact, the treatment time is short, and floor space is little, and is simple to operate, easily is automated.
All kinds of pollution substance removal effects in the waste water are as follows:
(1) oil
The effect of its highfield of this equipment utilization can make charged oil in water emulsion particulate generation directional migration, with electricity nuclear, realizes that elaioleucite takes off steady polymerization in electrode plate surface.The efficient flocculating group that electrolysis simultaneously produces destroys the double electrical layers of oil droplet, realizes the effect of breakdown of emulsion.
To oilfield produced water, refinery oily(waste)water, steelworks emulsifying wastewater etc., its clearance can reach more than 90%, reduces chemical reagent and adds, and reduces cost for wastewater treatment.
(2)COD
Organism kinds in the industrial sewage is various, and composition is also very complicated, has nothing in common with each other according to its organism kinds of different industries.Synergies such as its efficient flocculating effect of this equipment utilization, electric field oxygenizement, electric floating effect are for high density, be difficult to the biochemical degradation type organic removal effect is preferably all arranged.
This equipment is for the clearance of the COD water quality situation according to different industries, and clearance is generally at 30%-80%.
(3) turbidity, suspended substance
Its throwing out efficiently of this equipment utilization can reach more than 90% for the clearance of turbidity, suspended substance in the water.
(4) heavy metal ion
General heavy metal ions in wastewater is mainly: chromium, copper, manganese, arsenic, zinc etc.
This equipment utilization its throwing out, redoxomorphism etc. efficiently can reach more than 90% for all kinds of removal of heavy metal ions rates in the sewage.
(5) colourity
Colourity generally causes by color development functional group in the organism, and is very high as printing and dyeing, its colourity of dye industry waste water.This equipment has extraordinary effect for the removal of high chroma water, and its strong oxidation and strong reducing action can destroy organic color development functional group, reduces the colourity of water quality.This equipment can reach 80% for the clearance of colourity.
(6) bacterium, virus
The oxygenizement of the strong oxidizing property group that highfield effect and reaction generate between this equipment utilization pole plate is removed bacterium and the virus killed in the water, and its clearance can reach more than 80%.
(7) phosphide
The Fe that the solubility pole plate is separated out by electrochemical action
2+Be oxidized to Fe
3+With the phosphate radical reaction precipitation, reach phosphor-removing effect.
Description of drawings
Fig. 1 is the utility model wastewater electrolytic treatment system structural representation.
Embodiment
The application of the utility model wastewater electrolytic treatment system in all kinds of industry waste discharges.
1, the application in wastewater treatment
The electricity flocculation is widely used in the multiple industry of wastewater treatment.Petrochemical wastewater for example, cooling circulating water, oil field waste, the steamer bilge water purifies, and the catchment area, harbour purifies, mining industry waste water, electroplating wastewater, wastewater from car washer is bleachinged and dyeing and textile waste, paper mill effluent, pharmaceutical factory's waste water, agricultural effluent, slaughterhouse water, food and drink factory waste water, waste water such as paint dyestuff, pigment, percolate waste water reason, treating of wood waste water, travelling scenery district sanitary sewage disposal etc.
Be used to handle the waste water that contains oil in water emulsion, heavy metal; As electroplating wastewater, shipyard waste water etc. can overcome the insoluble problem of chemical Treatment, not only effectively remove heavy metal ion in the electroplating wastewater, and can reduce saltiness in the water, make the water after the processing recirculation be used in former operation.Electroplating wastewater after native system is handled can reach following treatment effect: Cr
6+＜0.001, Ni
2+＜0.005, Zn
2+＜0.062.
Native system is being handled high oily(waste)water, and containing oil emulsion, SS, organism aspect has unique effect.Can be widely used in fields such as waste water, wastewater from car washer, oil field waste such as petrochemical complex, paint dyestuff, pigment.
Native system is handled has high COD, high chroma, supersalinity, the waste water of organism bio-refractory, and as waste water from dyestuff, wastewater from chemical industry, refinery water.Generally adopted the array mode of physico-chemical process and biological process that it is handled both at home and abroad in the past.But because the draining complicated component, intractability is still bigger.Along with the development of electrochemical techniques, adopt the electrocoagulation dye wastewater treatment using, have equipment little, take up an area of less, advantages such as operational management is simple, COD clearance height and good decolorizing effect.
2, the application during electroplating wastewater (heavy metal ion, cyanogen) is handled
Native system can overcome the insoluble problem of chemical Treatment in electroplating wastewater processing and reuse, can not only effectively remove heavy metal ion in the electroplating wastewater, and can reduce saltiness in the water, makes the water after the processing recirculation be used in former operation.Electroplating wastewater after treatment can reach following treatment effect: Cr
6+＜0.001mg/L, Ni
2+＜0.005mg/L, Zn
2+＜0.062mg/L, CN
-＜0.005mg/L.
3, the application in dyestuff (high chroma) wastewater treatment
Waste water from dyestuff has high COD, high chroma, supersalinity, characteristics such as organism bio-refractory.Generally adopted the array mode of physico-chemical process and biological process that it is handled both at home and abroad in the past.But because the draining complicated component, intractability is still bigger.Along with the development of electrochemical techniques, adopt the native system dye wastewater treatment using, have that equipment is little, advantages such as less investment, operational management are simple, COD clearance height and good decolorizing effect.
4, the application in the wastewater treatment of shipyard
Native system is having unique effect aspect handling oil latex, SS, the organism.Can be widely used in fields such as waste water, wastewater from car washer, oil field waste such as petrochemical complex, paint dyestuff, pigment.
The key technical indexes reference when 5, handling other industry waste water:
Good effect is also arranged when as seen handling other industry waste water by following table.
Remarks: all test results all are to be unit with mg/l
Below in conjunction with accompanying drawing the utility model is further described
As shown in Figure 1, a kind of wastewater electrolytic treatment system, comprise wastewater collecting basin 1, salt solution filling 2, NaOH storage irritates 3, electrolyte tank 4, settling tower 7, sludge thickener 8, chamber-type press filter 9, two static mixers and two online PH instrument, irritate in NaOH storage that to be contained with concentration in 3 be 15% NaOH solution, electrolyte tank 4 is provided with bleed valve 17, after long-time the use, need clean electrolyte tank 4, electrolyte tank 4 can utilize the liquid after bleed valve 17 will clean to discharge after cleaning and finishing.Tap water passes through the water inlet transfer lime respectively and feeds in salt solution filling 2, NaOH storage filling 3, the electrolyte tank 4.The entrance end of electrolyte tank 4 is connected with 5 outlets of first static mixer by pipeline, and the exit end of electrolyte tank 4 is connected with 6 imports of second static mixer by pipeline.Wastewater collecting basin 1, salt solution filling 2, NaOH storage filling 3 are connected with 5 imports of first static mixer by drain pipe separately, and the NaOH storage is irritated 3 and also is connected with 6 imports of second static mixer by another drain pipe.The outlet of second static mixer 6 is connected with settling tower 7 by transport pipe, and settling tower 7 is provided with water outlet, and at the other concentration of metal ions instrument 14 that is provided with of water outlet, concentration of metal ions instrument 14 is used for measuring ion content in the drainage water.Rear portion at settling tower 7 also is provided with coupled sludge thickener 8, sludge thickener 8 is connected with chamber-type press filter 9 by pipeline, settling tower 7 sedimentary pollutents are sent sludge thickener 8 to and are handled like this, filter by chamber-type press filter 9 at last, can better handle waste water, it is higher to handle quality.Can be provided with return water pipe 16 on chamber-type press filter 9, return water pipe 16 is connected with the water inlet transfer lime, and the water of Pai Chuing can carry out circular treatment in this system of feeding like this.
In order better to observe the Inlet and outlet water pH value, between electrolyte tank 4 entrance ends and 5 outlets of first static mixer, be provided with online PH instrument 10 simultaneously, between 6 outlets of second static mixer and settling tower 7, be provided with online PH instrument 11.Be provided with air compressor 12 on electrolyte tank 4 sides, air compressor 12 is gone into compressed air delivery in the electrolyte tank 4 by gas transmission pipeline, pneumatic blending when being used for wastewater electrolytic.Electrolyte tank 4 is provided with blower fan 13, and blower fan 13 is discharged the gas that wastewater electrolytic produces.At sludge thickener 8 and the chamber-type press filter 9 other air compressor 15 that are provided with, air compressor 15 is conveyed into pressurized air respectively in sludge thickener 8 and the chamber-type press filter 9 by gas transmission pipeline.Pressurized air feeds sludge thickener 8 and is used to stir mud, and pressurized air feeds and is used for the sludge cake dehydration in the chamber-type press filter 9.
The utility model electrolyte tank 4 adopts Reinforced PVC plate shell, corrosion resistant, and good toughness, plasticity-is strong, according to the waste water water yield, processing requirement customization.The electrode of electrolyte tank 4 adopts soluble iron, aluminium sheet (selecting electrode materials according to wastewater property), each electrolyte tank 4 is made up of four compartments, each compartment is connected by the N plate electrode, waste water is by the equal permanent injection device of corrosion-resistant pump, under the rated DC current effect, by every group of compartment. online PH instrument 10 is adjusted the waste water pH value, makes waste water at proper range.Irritate an amount of weak brine raising specific conductivity that adds 2 according to the waste water electric conductivity from salt solution, reduce volts DS, energy efficient.
The utility model wastewater electrolytic treatment system has following characteristics
1, investment, working cost are low.(the about 0.15-0.5 degree of power consumption/ton water)
2, need not to add chemical agent.
3, floor space is little, and is simple to operate.
4, adaptation waste water scope is wide, handles multiple pollutent, the processing efficiency height.
5, the generation sludge quantity is few, mud density height, easily precipitation.
Show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification sheets just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (10)
1. wastewater electrolytic treatment system, comprise wastewater collecting basin, salt solution filling, it is characterized in that: also comprise NaOH storage filling, electrolyte tank, settling tower, sludge thickener, chamber-type press filter and two static mixers, described tap water passes through the water inlet transfer lime respectively and feeds in NaOH storage filling, salt solution filling, the electrolyte tank, the entrance end of described electrolyte tank is connected with the outlet of first static mixer by pipeline, and the exit end of electrolyte tank is connected with the second static mixer import by pipeline; Described wastewater collecting basin, salt solution are irritated, NaOH storage filling is connected with the first static mixer import by drain pipe separately, described NaOH storage is irritated and also is connected with the second static mixer import by another drain pipe, the outlet of described second static mixer is connected with settling tower by transport pipe, and settling tower is provided with water outlet.
2. a kind of wastewater electrolytic treatment system according to claim 1 is characterized in that: be provided with coupled sludge thickener at the rear portion of settling tower, described sludge thickener also is connected with chamber-type press filter by pipeline.
3. a kind of wastewater electrolytic treatment system according to claim 2 is characterized in that: be provided with online PH instrument between electrolyte tank entrance end and the outlet of first static mixer, also be provided with online PH instrument between outlet of second static mixer and settling tower.
4. a kind of wastewater electrolytic treatment system according to claim 3 is characterized in that: be provided with air compressor on the electrolyte tank side, air compressor is gone into compressed air delivery in the electrolyte tank by gas transmission pipeline, pneumatic blending when being used for electrolysis.
5. a kind of wastewater electrolytic treatment system according to claim 4 is characterized in that: electrolyte tank is provided with and is used for and will produces the blower fan that gas is discharged after the electrolysis.
6. a kind of wastewater electrolytic treatment system according to claim 5 is characterized in that: be provided with the concentration of metal ions instrument of measuring ionic concn in the drainage water at the water outlet place of settling tower.
7. a kind of wastewater electrolytic treatment system according to claim 6, it is characterized in that: be provided with air compressor at sludge thickener and chamber-type press filter side, air compressor is conveyed into pressurized air respectively in sludge thickener and the chamber-type press filter by gas transmission pipeline.
8. a kind of wastewater electrolytic treatment system according to claim 7, it is characterized in that: chamber-type press filter is provided with return water pipe, and described return water pipe is connected with the water inlet transfer lime.
9. a kind of wastewater electrolytic treatment system according to claim 8 is characterized in that: electrolyte tank is provided with the bleed valve that uses when cleaning.
10. a kind of wastewater electrolytic treatment system according to claim 9 is characterized in that: be contained with concentration in described NaOH storage is irritated and be 15% NaOH solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020264071XU CN201785224U (en) | 2010-07-19 | 2010-07-19 | Waste water electrolysis treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020264071XU CN201785224U (en) | 2010-07-19 | 2010-07-19 | Waste water electrolysis treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201785224U true CN201785224U (en) | 2011-04-06 |
Family
ID=43817199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020264071XU Expired - Fee Related CN201785224U (en) | 2010-07-19 | 2010-07-19 | Waste water electrolysis treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201785224U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101891324A (en) * | 2010-07-19 | 2010-11-24 | 江苏泽宇环境工程有限公司 | Wastewater electrolytic treatment system |
| CN103373779A (en) * | 2012-04-11 | 2013-10-30 | 黄昱诚 | Electroplating wastewater treatment equipment |
| CN107381880A (en) * | 2017-09-15 | 2017-11-24 | 环境保护部环境规划院 | A kind of mobile process system and method for hexavalent chromium polluted underground water |
-
2010
- 2010-07-19 CN CN201020264071XU patent/CN201785224U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101891324A (en) * | 2010-07-19 | 2010-11-24 | 江苏泽宇环境工程有限公司 | Wastewater electrolytic treatment system |
| CN103373779A (en) * | 2012-04-11 | 2013-10-30 | 黄昱诚 | Electroplating wastewater treatment equipment |
| CN107381880A (en) * | 2017-09-15 | 2017-11-24 | 环境保护部环境规划院 | A kind of mobile process system and method for hexavalent chromium polluted underground water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20190719 |