CN104709968B - A kind of method and apparatus system of electroplating wastewater processing - Google Patents
A kind of method and apparatus system of electroplating wastewater processing Download PDFInfo
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Abstract
The invention belongs to wastewater treating technology field, and in particular to a kind of method and apparatus system of electroplating wastewater processing.This method is：Electroplating wastewater enters ion-exchange unit after filtering, makes heavy metal ion adsorbed on ion exchange resin in electroplating wastewater, and the ion-exchange unit includes the ion exchange tower that two or more is connected；The electroplating wastewater is with before the contacts ionic exchange resin in ion exchange tower, having carried out atomization process.The present invention is by the reasonable disposition and optimization of structure and parameter, and without using other chemicals, sludge quantity falls sharply to few, meets the requirement of energy-saving and emission-reduction；Content of beary metal is less than 0.3mg/L after wastewater treatment, even less than 0.1mg/L, reaches that country allows discharge standard；The reclaimed water obtained after processing can be recycled directly, can further save water resource, reduction production cost.
Description
Technical field
The invention belongs to wastewater treating technology field, and in particular to a kind of method and apparatus system of electroplating wastewater processing.
Background technology
Electroplating wastewater derives from electroplate technology, and the technique is included after pre-electroplating treatment process, electroplating work procedure and plating
The part for the treatment of process three is constituted, and each process has waste water generation to a certain extent.Wherein, the plating piece in plating production process
Poaching wastewater is one of main source of electroplating wastewater, accounts for the 80% of plant effluent discharge capacity.With PCB (Printed
Circuit Board, printed circuit board) electric cleaning before copper plating exemplified by, as shown in figure 1, containing after its cleaning in the waste water that is formed
The materials such as grease, iron sheet, surfactant, soda acid, heavy metal after integrated treatment, it is necessary to could discharge.
Topmost harmful substance is heavy metal in electroplating wastewater.Heavy metal is difficult to degrade in nature, there is very strong
Disguised and enriching, the yield and quality of crops can be influenceed by pouring farmland with heavy metal-containing waste water, and agriculture can be caused when serious
Crop is had no harvest.Heavy metal is to the very harmful of people, and aquatic animals and plants absorb heavy metal from polluted-water and are enriched with vivo, pass through
Food chain enters human body, gets up to cause slow poisoning in some organs savings of human body.Modern medicine study shows that some are with much money
Category ion, which enters people, which to be known from experience, makes one carcinogenic, teratogenesis, causes chromosome mutation, and incubation period is up to many decades.China's electroplating industry is annual
A large amount of nickel, copper, chromium are consumed, these heavy metals are in addition to coating is converted into, some generation waste residue and giving up containing heavy metal ion
Water.Such as without effectively processing, its harm is difficult to estimate.More fearful is that Heavy Metal Pollution has long-term latent, accumulation and not
Reversible feature.And present copper and mickel price is higher, so either from environmental protection or economic angle, waste water
Nickel, the recycling of copper ion reclaim and suffer from extremely important meaning.
The method of existing processing heavy metal out of electroplating wastewater mainly has：Chemical precipitation method, bioanalysis, electrolysis, UF membrane
Method and ion-exchange etc..The subject matter that current electroplating industry wastewater treatment faces can be summarized as low degree of specialized division of labor, machine
Tool equipment is low, and pollution control level is low, and effective improvement rate is low, and operating cost is high and wastewater recycle rate is low.Specifically such as, sink
Shallow lake method is to add chemical reagent, a kind of method in the basic conditions precipitating heavy metal ion, such as Chinese patent application
A kind of method of efficient process nickel-containing waste water disclosed in 201210520919.4, the advantage of this method is that cost is low, filter residue dehydration
Property it is good, have the disadvantage that time-consuming, filter residue amount is big and goes out the water hardness and be higher.The precipitation method are easy to operate, but the method is to turn heavy metal
Move, easily produce secondary pollution.Bioanalysis is nontoxic, safe, do not produce secondary pollution, but living body biological flocculant is difficult to protect
Deposit, flocculant production cost is high, a kind of nickeliferous plating of electrolysis processing is useless as disclosed in Chinese patent application 200910154766.4
Water and the method for reclaiming nickel, this method can effectively reclaim nickel, but electrolysis is not suitable for the electroplating wastewater of low concentration, equally
There is the problem of heavy metal contaminants transfer causes secondary pollution.The advantage of membrane separating method is that equipment is simple and convenient to operate, accounted for
Ground less, efficiency high, be not required to addition chemical reagent etc., have the disadvantage that membrane module is expensive, vulnerable to pollution etc. during film use.
For ion-exchange, it has selective absorption and enrichment method function, can be by heavy metal ion from waste water
Separate, obtain the recovered liquid that concentration is higher, impurity content is relatively low, with good development prospect.For example, Chinese patent Shen
201310560417.9 a kind of methods that utilization weak acidic ion-exchange fiber handles nickeliferous/copper-contained electroplating waste water please be disclosed, its
After being pre-processed to electroplating wastewater, fiber is subjected to processing transition loaded on ion exchange column, Na fiber types is transformed into, obtains everywhere
Ion exchange column after reason；Ion exchange column 1-4 after the processing is connected into ion exchange system；Plating after processing is given up
Water is passed through ion exchange system and carries out adsorption treatment, when concentration of metal ions is less than 0.5mg/L in water outlet, is expelled directly out.Should
Although method has reached more quick, efficient purpose, still, metal in its water outlet when removing heavy metal out of electroplating wastewater ion
Ion concentration is still only controlled less than 0.5mg/L.
However, with new《Electroplate pollutant emission standard》(GB1900-2008) issuing and implementation so that electroplating industry is dirty
Contaminate thing discharge standard increasingly strict, content of beary metal is from reaching that 0.5mg/L is transitioned into 0.3mg/L, or even 0.1mg/L ability in water
Discharge.Domestic existing electroplating waste water treatment technology can not meet New emission standard requirement substantially, therefore, carry out electroplating wastewater in a deep going way
The correlative study for the treatment of technology is particularly important.
The present invention is based on above-mentioned prior art, and the ion-exchange and its apparatus system to ion plating wastewater treatment are carried out
Explore, to reach emission request that new standard is strict.
The content of the invention
In view of this, the present invention provides a kind of method of the efficient electroplating wastewater processing for removing heavy metal in waste water.
To achieve the above object, the technical scheme is that：
A kind of method of electroplating wastewater processing, the electroplating wastewater enters ion-exchange unit after filtering, makes plating
Heavy metal ion adsorbed on ion exchange resin in waste water, the ion-exchange unit includes the ion that two or more is connected
Exchange column；The electroplating wastewater is with before the contacts ionic exchange resin in ion exchange tower, having carried out atomization process.
The number of the ion exchange tower can be according to the pollution condition of the electroplating wastewater of processing, and selection two or more is gone here and there
Connection；And according to the Main Heavy Metal in the electroplating wastewater of processing, select different ion exchange resin fillers.The electricity
The filtering of waste electroplating, mainly removes the suspension and granular solids impurity in waste water.The present invention by ion exchange series connection and
The setting of atomization process, exchange capacity of the waste water in ion exchange resin is increased especially with atomization process, can be efficient
The heavy metal ion in electroplating wastewater is removed, water outlet is easily reached national standard requirement.
Further, the operation of the atomization process is completed by the atomising device in ion exchange tower；The atomization dress
Put the atomizer including being set close to ion exchange tower bottom；The electroplating wastewater is entered by pipeline from ion exchange top of tower
Enter, sprayed under pressure from atomizer, then ion exchange is carried out with contacts ionic exchange resin, after ion-exchange treatment
Liquid again from ion exchange top of tower flow out.The atomising device is atomized using pressure, is contacted using enlarged-area and non-
The processing mode of heating, has abolished the mode of heating power consumption, meets the requirement efficiently and saved.
Further, the filler of the ion exchange tower is the ion exchange resin with one or more of functional group,
I.e.：Ammonium functional group, amidine functional group, amido functional group, sulfonate functional groups, quaternary amine II types functional group etc., such as ammonium ion
Exchanger resin, sulfonic acid group ion exchange resin, amido ion exchange resin, quaternary amine type ion exchange resin etc..The functional group
The combination of ion exchange resin is selected according to the property of electroplating wastewater.Preferably, in the filler, with ammonium function
Group, the quantity ratio of the ion exchange resin of sulfonate functional groups and quaternary amine II types functional group are：2-4:3-4:3-4.
Further, the ion-exchange unit is by the ion exchange tower 1 connected, ion exchange tower 2, the and of ion exchange tower 3
Ion exchange tower 4 is constituted.
Further, the ion exchange tower 1 and ion exchange tower 2 be used to adsorbing the heavy metal of high content in electroplating wastewater from
Son；The ion exchange tower 3 is used for the pH-value for adjusting electroplating wastewater；The ion exchange tower 4 is used to adsorb in electroplating wastewater
The heavy metal ion of low content.
More specifically, when the heavy metal remained in electroplating wastewater is mainly chromium, the resin that ion exchange tower 1 is used for：
Amine resin and quaternary ammonium resins, the quantity ratio of their fillers is：2:4；The resin that ion exchange tower 2 is used for：Amine resin and
Sulfonic group resin, the quantity ratio of their fillers is：3:4；The resin that ion exchange tower 3 is used for：Sulfonic group resin and ammonium tree
Fat, the quantity ratio of their fillers is：2.5:4；The resin that ion exchange tower 4 is used for：Amine resin, sulfonic group resin and quaternary amine
Resin, the quantity ratio of their fillers is：3:3:4.
When the heavy metal remained in electroplating wastewater is mainly nickel and copper, the resin that ion exchange tower 1 is used for：Ammonium tree
Fat and quaternary ammonium resins, the quantity ratio of their fillers is：2:3；The resin that ion exchange tower 2 is used for：Amine resin and sulfonic group
Resin, the quantity ratio of their fillers is：3:4；The resin that ion exchange tower 3 is used for：Sulfonic group resin and ammonium resin, they
The quantity ratio of filler is：3:3；The resin that ion exchange tower 4 is used for：Amino resins, ammonium resin and quaternary ammonium resins, they are filled out
The quantity ratio of material is：3:4:3.
Further, the electroplating wastewater is in the processing procedure of ion-exchange unit, and pressure is 0.5-8.0Kg/cm2Model
Enclose, preferably pressure is in 3.0-6.0Kg/cm2；The processing flow of electroplating wastewater is 500-3000L per hour.
Further, it is also associated with diaphragm cell after the ion-exchange unit；The diaphragm cell is used to locate
The regenerated liquid after exchange resin elution is managed, heavy metal is reclaimed.
Further, the ion-exchange unit and diaphragm cell so constitute portable on mobile platform
Operating platform, is easy in plating trough rim operation.
On the basis of above-mentioned electroplating effluent treatment method principle, the present invention also provides a huge sum of money in a kind of efficiently removal waste water
The apparatus system of the electroplating wastewater processing of category.
The technical scheme used for：
A kind of apparatus system of electroplating wastewater processing, including the ion-exchange unit and diaphragm cell set gradually；
The ion-exchange unit is by the ion exchange tower 1 connected, ion exchange tower 2, ion exchange tower 3 and ion exchange
Tower 4 is constituted；The atomising device of electroplating wastewater is provided with the ion exchange tower, the atomising device is included close to ion exchange tower
The atomizer that bottom is set；The outlet of import and processed waste water of the ion exchange top of tower provided with electroplating wastewater, plating
The import of waste water is connected with atomizer by the pipeline of setting；The ion exchange tower 1 and ion exchange tower 2, which are used to adsorb, to be electroplated
The heavy metal ion of high content in waste water；The ion exchange tower 3 is used for the pH-value for adjusting electroplating wastewater；The ion exchange
Tower 4 is used for the heavy metal ion for adsorbing low content in electroplating wastewater；
The diaphragm cell is used to handle the regenerated liquid after exchange resin elution, reclaims heavy metal.
The method have the benefit that：
The present invention has advantages below：
1) using the series connection of multiple ion exchange towers, the functional group such as ammonium, sulfonic group, two type quaternary amines in its filler is passed through
Many resin combinations, are optionally enriched with polytype heavy metal；
2) electroplating wastewater is used after pressure atomization processing, then exchanged with contacts ionic exchange resin, expand contact surface
Product contacts and employs the processing mode of non-heated, has reached the purpose for saving and improving treatment efficiency；
3) heavy metal is reclaimed high-purity virgin metal material, is improved value and also reduce two in diaphragm electrolysis mode after being enriched with
Secondary pollution；
4) construction unit is assembled using portable, forms trough rim operation, being conducive to electroplating wastewater to handle and circulate online makes
With；
5) in electroplating wastewater processing, by the optimal design-aside of parameter, processing waste water is made to be reached with generation waste water in amount flat
Weighing apparatus, can reach the target do not discharged.
Therefore, by the reasonable disposition and optimization of above structure and parameter, the present invention is to be desorbed using micro except regulation pH
Outside soda acid, without using other chemicals, sludge quantity falls sharply to few (can typically reduce 95%-98%), meets energy-conservation and subtracts
The requirement of row.Content of beary metal is less than 0.3mg/L after wastewater treatment, even less than 0.1mg/L, reaches that country allows discharge to mark
It is accurate.The reclaimed water obtained after processing can be recycled directly, can further save water resource, reduction production cost.
Brief description of the drawings
Fig. 1 is that electroplating technology produces schematic diagram with waste water；
Fig. 2 is a kind of structural representation of ion exchange tower of the present invention；
Fig. 3 is a kind of flow chart of electroplating wastewater processing of the present invention.
Fig. 4 is applied to a kind of flow chart that electroplating wastewater is handled online for the method for the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.Fig. 2 is a kind of structural representation of ion exchange tower of the present invention
Figure, wherein eliminating resin extender.As seen from the figure, the import of electroplating wastewater is respectively provided with the top of ion exchange tower and is given up
Outlet after water process, provided with pipeline leads to electroplating wastewater in ion exchange tower (or close located at ion exchange tower lower half
Bottom) atomizer, atomizer be porous disk-like structure.Electroplating wastewater sprays from the hole of atomizer under stress, fully
After being contacted with the resin extender loaded in ion exchange tower, then the outlet outflow from top, during being somebody's turn to do, the weight in electroplating wastewater
Metal ion is purified by resin adsorption, the water of outflow.
Fig. 3 is a kind of flow chart of electroplating wastewater processing of the present invention.As seen from the figure, the technique has been arranged in series 4 ions
Exchange column, ion exchange tower processing after waste water it is neutralized after, can directly recycling；And exchange resin elution is again
Raw liquid, wherein containing substantial amounts of heavy metal, further by diaphragm electrolysis, reclaiming the heavy metal of high-purity.
Fig. 4 is applied to a kind of flow chart that electroplating wastewater is handled online for the method for the present invention, wherein, through the inventive method
Or the electroplating wastewater (i.e. reclaimed water) after apparatus system processing, then return to the three, the second, the first potcher successively plated item is entered
Row rinsing, it is achieved thereby that water is recycled.
Referring to the drawings, the preferred embodiments of the present invention and comparative example are described in detail, wherein unreceipted specific
The experimental method of condition, is carried out according to normal condition.
Embodiment 1
According to Fig. 3 flow, using the apparatus system for being in series with 4 ion exchange towers, to mainly remaining heavy metal-chromium
Electroplating wastewater handled.The filler of 4 ion exchange towers is：The resin that ion exchange tower 1 is used for：Amine resin
And quaternary ammonium resins, the quantity ratio of their fillers is：2:4；The resin that ion exchange tower 2 is used for：Amine resin and sulfonic group tree
Fat, the quantity ratio of their fillers is：3:4；The resin that ion exchange tower 3 is used for：Sulfonic group resin and ammonium resin, they are filled out
The quantity ratio of material is：2.5:4；The resin that ion exchange tower 4 is used for：Amine resin, sulfonic group resin and quaternary ammonium resins, they
The quantity ratio of filler is：3:3:4.
Operating procedure：
Electroplating wastewater is filtered, suspension therein and granular solids impurity is removed.Then, ion friendship is passed sequentially through
Change tower 1-4.Ion exchange tower 1 and ion exchange tower 2 are used for the chromium ion for adsorbing high content in electroplating wastewater；Ion exchange tower 3
For adjusting the pH-value of electroplating wastewater to 7 or so；Ion exchange tower 4 is used for the metal ion for adsorbing low content in electroplating wastewater
(being mainly 0.5-1ppm concentration).During being somebody's turn to do, the pressure that electroplating wastewater flows through ion-exchange unit is 2-6Kg/cm2, stream
Speed is 120L.
Finally, after testing, wherein chromium content is below 0.1ppm, meets discharging standards for the water outlet of ion exchange tower 4.
After continuous firing about 600 hours, with the ion exchange resin in sour elution ionic exchange column 1-4, obtain regenerated liquid and lead
In the electrolytic cell for entering diaphragm cell, implement diaphragm electrolysis, heavy metal is reclaimed according to general conditions.Finally, obtaining content is
More than 99% chromium.
Embodiment 2
According to Fig. 3 flow, using the apparatus system for being in series with 4 ion exchange towers, to mainly remaining heavy metal-nickel
Handled with the electroplating wastewater of copper.The filler of 4 ion exchange towers is：The resin that ion exchange tower 1 is used for：Ammonium
Resin and quaternary ammonium resins, the quantity ratio of their fillers is：2:3；The resin that ion exchange tower 2 is used for：Amine resin and sulfonic acid
Base resin, the quantity ratio of their fillers is：3:4；The resin that ion exchange tower 3 is used for：Sulfonic group resin and ammonium resin, it
The quantity ratio of filler be：3:3；The resin that ion exchange tower 4 is used for：Amino resins, ammonium resin and quaternary ammonium resins, they
Quantity ratio be：3:4:3.
Operating procedure：
Electroplating wastewater is filtered, suspension therein and granular solids impurity is removed.Then, ion friendship is passed sequentially through
Change tower 1-4.Ion exchange tower 1 and ion exchange tower 2 are used for the nickel and copper ion for adsorbing high content in electroplating wastewater；Ion exchange
Tower 3 is used to adjust the pH-value of electroplating wastewater to 7 or so；Ion exchange tower 4 is used for the metal for adsorbing low content in electroplating wastewater
Ion (being mainly 1-5ppm concentration).During being somebody's turn to do, the pressure that electroplating wastewater flows through ion-exchange unit is 3-6Kg/cm2,
Flow velocity is 150L.
Finally, after testing, wherein nickel content is 0.05ppm, and copper content is 0.05ppm, is met for the water outlet of ion exchange tower 4
Discharging standards.
After continuous firing about 720 hours, with the ion exchange resin in sour elution ionic exchange column 1-4, obtain regenerated liquid and lead
In the electrolytic cell for entering diaphragm cell, implement diaphragm electrolysis, heavy metal is reclaimed according to normal condition.Finally, obtaining content is
More than 99% nickel and content is more than 99% copper.
Comparative example
With reference to the operating procedure of embodiment 1, the chromium plating wastewater sample 1-5 processing of same source is taken.Wherein, it is used
Ion-exchange unit is also to be in series with the structures of 4 ion exchange towers, specifically, the resin that ion exchange tower 1 is used for：Sulfonic acid
Base resin, the quantity of its filler is 100%；The resin that ion exchange tower 2 is used for：Sulfonic group resin and amine resin, they
The quantity ratio of filler is：5:5；The resin that ion exchange tower 3 is used for：Quaternary ammonium resins and amino resins, the quantity of their fillers
Than for：7:3；The resin that ion exchange tower 4 is used for：Sulfonic group resin, amino resins and amine resin, their quantity ratio
For：3:3:4.
When carrying out wastewater treatment, for sample 1, only Cr VI tower (i.e. ion exchange tower 1) has atomization；For the He of sample 2
3,4 towers have atomization；It is incomplete for 4,4 tower atomizations of sample；It is not atomized for 5,4 towers of sample.After processing, to going out
The total chromium and content of 6-valence Cr ions of water are detected, the results are shown in Table 1.As a result illustrate, atomization plays an important role.
The total chromium of table 1 and content of 6-valence Cr ions testing result
| Sample | pH | Electrical conductivity | Total chromium | Cr VI | Processing method |
| 1 | 2.81 | 30.8 | 11.84 | 0 (not detecting) | Cr VI tower has atomization |
| 2 | 6.40 | 15.95 | 0 (not detecting) | 0 (not detecting) | 4 towers have atomization |
| 3 | 6.80 | 10.15 | 0 (not detecting) | 0 (not detecting) | 4 towers have atomization |
| 4 | 9.11 | 28.1 | 0.4076 | 0.3333 | 4 tower atomizations are incomplete |
| 5 | 5.22 | 25.1 | 928.2 | 825 | It is not atomized |
Note：Total chromium and hexavalent chromium concentration unit：Mg/L, electrical conductivity unit：mS/cm.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (6)
1. a kind of method of electroplating wastewater processing, the electroplating wastewater enters ion-exchange unit after filtering, plating is set to give up
It is heavy metal ion adsorbed on ion exchange resin in water, it is characterised in that：The ion-exchange unit includes two or more
The ion exchange tower of series connection；The electroplating wastewater is with before the contacts ionic exchange resin in ion exchange tower, having carried out at atomization
Reason；The filler of the ion exchange tower is the ion exchange resin with one or more of functional group：Ammonium functional group, amine
Base functional group, amido functional group, sulfonate functional groups and quaternary amine II types functional group；
The operation of the atomization process is completed by the atomising device in ion exchange tower；The atomising device include close to from
Son exchanges the atomizer that tower bottom is set；The electroplating wastewater is entered by pipeline from ion exchange top of tower, in pressure effect
Under sprayed from atomizer, then carry out ion exchange with contacts ionic exchange resin, liquid after ion-exchange treatment again from from
Flowed out at the top of sub- exchange column；
The ion-exchange unit is by the ion exchange tower 1 connected, ion exchange tower 2, ion exchange tower 3 and ion exchange tower 4
Composition；The ion exchange tower 1 and ion exchange tower 2 are used for the heavy metal ion for adsorbing high content in electroplating wastewater；It is described from
Sub- exchange column 3 is used for the pH-value for adjusting electroplating wastewater；The ion exchange tower 4 is used for the weight for adsorbing low content in electroplating wastewater
Metal ion；
Diaphragm cell is also associated with after the ion-exchange unit.
2. the method for electroplating wastewater processing according to claim 1, it is characterised in that：When the huge sum of money remained in electroplating wastewater
Category be mainly chromium when, the resin that ion exchange tower 1 is used for：Amine resin and quaternary ammonium resins, the quantity ratio of their fillers is：2:
4；The resin that ion exchange tower 2 is used for：Amine resin and sulfonic group resin, the quantity ratio of their fillers is：3:4；Ion is handed over
Change resin that tower 3 uses for：Sulfonic group resin and ammonium resin, the quantity ratio of their fillers is：2.5:4；Ion exchange tower 4 is adopted
Resin is：Amine resin, sulfonic group resin and quaternary ammonium resins, the quantity ratio of their fillers is：3:3:4；
Or, when the heavy metal remained in electroplating wastewater is mainly nickel and copper, the resin that ion exchange tower 1 is used for：Ammonium
Resin and quaternary ammonium resins, the quantity ratio of their fillers is：2:3；The resin that ion exchange tower 2 is used for：Amine resin and sulfonic acid
Base resin, the quantity ratio of their fillers is：3:4；The resin that ion exchange tower 3 is used for：Sulfonic group resin and ammonium resin, it
The quantity ratio of filler be：3:3；The resin that ion exchange tower 4 is used for：Amino resins, ammonium resin and quaternary ammonium resins, they
The quantity ratio of filler is：3:4:3.
3. the method for electroplating wastewater processing according to claim 1 or 2, it is characterised in that：The electroplating wastewater is in ion
In the processing procedure of crosspoint, pressure is 0.5-8.0Kg/cm2Scope.
4. the method for electroplating wastewater processing according to claim 1, it is characterised in that：The diaphragm cell is used to locate
The regenerated liquid after exchange resin elution is managed, heavy metal is reclaimed.
5. the method for electroplating wastewater processing according to claim 4, it is characterised in that：The ion-exchange unit and barrier film
Electrolysis cells are on mobile platform.
6. a kind of apparatus system of electroplating wastewater processing, it is characterised in that：
Including the ion-exchange unit set gradually and diaphragm cell；
The ion-exchange unit is by the ion exchange tower 1 connected, ion exchange tower 2, ion exchange tower 3 and ion exchange tower 4
Composition；The atomising device of electroplating wastewater is provided with the ion exchange tower, the atomising device is included close to ion exchange bottom of towe
The atomizer that portion is set；The outlet of import and processed waste water of the ion exchange top of tower provided with electroplating wastewater, plating is useless
The import of water is connected with atomizer by the pipeline of setting；The ion exchange tower 1 and ion exchange tower 2, which are used to adsorb, electroplates useless
The heavy metal ion of high content in water；The ion exchange tower 3 is used for the pH-value for adjusting electroplating wastewater；The ion exchange tower
4 heavy metal ion for adsorbing low content in electroplating wastewater；
The diaphragm cell is used to handle the regenerated liquid after exchange resin elution, reclaims heavy metal.
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| CN105540916A (en) * | 2015-12-10 | 2016-05-04 | 重庆青天环保材料有限公司 | Purification process of electroplating waste liquid |
| CN105366767B (en) * | 2015-12-10 | 2018-01-12 | 重庆青天环保材料有限公司 | The processing system and processing method of a kind of cyanide-containing electroplating water |
| CN105399243A (en) * | 2015-12-10 | 2016-03-16 | 重庆青天环保材料有限公司 | Regeneration technology of electroplating waste liquid |
| CN105540957A (en) * | 2016-01-26 | 2016-05-04 | 重庆巨科环保有限公司 | Electroplating wastewater treatment method |
| CN107034364B (en) * | 2017-04-25 | 2019-07-02 | 上海问鼎环保科技有限公司 | A method of metallic nickel is adsorbed and recycled from electroplating wastewater |
| CN107651772A (en) * | 2017-11-07 | 2018-02-02 | 苏州淡林环境科技有限公司 | A kind of electroplating wastewater advanced treatment apparatus |
| CN109626508A (en) * | 2019-01-25 | 2019-04-16 | 重庆耐德水处理科技有限公司 | A kind of nickel-containing waste water treating column and its application method |
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| CN101037243A (en) * | 2007-04-26 | 2007-09-19 | 陈启松 | Heavy metal treatment method of electroplating wastewater |
| CN102001727A (en) * | 2010-12-24 | 2011-04-06 | 华电水处理技术工程有限公司 | Ion exchange equipment |
| CN102001707B (en) * | 2010-12-28 | 2012-09-12 | 南京源泉环保科技股份有限公司 | Method for recycling chromic acid in electroplating waste water |
| CN102432086A (en) * | 2011-10-28 | 2012-05-02 | 苏汉明 | Waste water treatment device and waste water treatment method |
| CN202766341U (en) * | 2012-09-10 | 2013-03-06 | 哈尔滨艾科维节能环保技术有限公司 | Device for treating chromium-containing waste water and recovering chromic acid by ion exchange method |
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| CN104709968A (en) | 2015-06-17 |
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