CN101717135A - Method for treating nickel-containing electroplating wastewater and recovering nickel by electrolysis - Google Patents
Method for treating nickel-containing electroplating wastewater and recovering nickel by electrolysis Download PDFInfo
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- CN101717135A CN101717135A CN200910154766A CN200910154766A CN101717135A CN 101717135 A CN101717135 A CN 101717135A CN 200910154766 A CN200910154766 A CN 200910154766A CN 200910154766 A CN200910154766 A CN 200910154766A CN 101717135 A CN101717135 A CN 101717135A
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Abstract
The invention discloses a method for treating nickel-containing electroplating wastewater and recovering nickel by electrolysis. The method has the characteristics of simple process, no secondary pollution, high removal rate and recyclable deposited metallic nickel. The nickel-containing electroplating wastewater is subjected to electrolysis treatment by an electrolysis treatment nickel-containing electroplating wastewater device, which comprises an electrolytic bath and an electrolyte stirring apparatus, wherein the anode adopts a titanium-based platinum electrode; the cathode adopts a nickel electrode or a graphite electrode; and a pH meter is arranged in the electrolytic bath. The method for treating the nickel-containing electroplating wastewater by electrolysis comprises the following steps: before the electrolysis treatment, putting the nickel-containing electroplating wastewater serving as an electrolyte into the electrolytic bath, and adding alkali solution into the electrolyte to adjust the pH value of the electroplating wastewater; and adding the aqueous alkali into the electrolyte during the electroplating to adjust the pH value of the electrolyte to between 6.0 to 9.0, and recycling the nickel precipitated from a negative plate by measuring the charge accumulation amount of the electrolyte.
Description
Technical field
The present invention relates to the process field of electroplating wastewater with heavy metal ions, particularly a kind of electrolysis treatment Treating Electroplate Wastewater Containing Nickel also reclaims the method for nickel.
Background technology
Most of heavy metal contaminations come from the discharging of trade effluent.Generation endangers to HUMAN HEALTH in effects such as the heavy metal ion in the waste water is difficult for degraded in environment, can accumulate enrichment in aquatic organism He in the farm crop tissue, and is concentrated by biological accumulation, the biology of tap water and food chain, that biology amplifies.It is not only the removal heavy metal that improvement contains the pollution that the trade effluent of heavy metal causes, and also should develop recovery technology, makes changing waste into resources.The improvement method can be divided into three kinds: first kind is chemical method, comprises neutralization precipitation method, sulphide precipitation, chemical reduction method, electrochemical reducing, the ferrite precipitator method etc.; Second class is a physico-chemical processes, mainly contains absorption method, solvent extration, ion exchange method etc.; The 3rd class is a biological process, mainly is that heavy metal in the waste water is removed in the effects such as absorption, accumulation, enrichment by microorganism or plant, and concrete have bio-flocculation process, biosorption process, a plant regulation method etc.
At present, Treating Electroplate Wastewater Containing Nickel recycling technology has solvent extration, chemical precipitation method, ion exchange method and absorption method.
1, solvent extration
Solvent extration is to utilize heavy metal ion different in organic phase and solubleness in water, makes heavy metal concentrate in the separation method of organic phase.Organic phase also claims extraction agent, and common have tributyl phosphate, trioctylphosphine oxide, diformazan heptyl ethanamide, trioctylamine, primary amine, oleic acid and a linolic acid etc.In addition, organic extractant also is widely used in the metal form analysis, as acetone, ethanol etc.
It is simple, easy and simple to handle that solvent extration is handled heavy metal wastewater thereby equipment, and adding extraction dosage is little, and extraction agent is recyclable to be utilized again, and secondary pollution is little, is a kind of treatment process that development potentiality is arranged very much.
2, chemical precipitation method
Chemical precipitation method is the principle according to solubility product, adds oxyhydroxide, sulfide, carbonated etc., heavy metal ion is combined with hydroxide ion, sulfonium ion, carbanion etc. form insoluble compound.Though technology is comparatively simple, operation is also than being easier to, and this method is subject to the influence of precipitation agent and envrionment conditions, uses water concentration and does not reach emission standard.In addition,, be easy to generate secondary pollution, do not meet the principle of environmental protection if a large amount of waste residues that reaction produces do not obtain good treatment.
3, ion exchange method
Ion exchange method is the process of heavy metal ion and ion exchange resin generation ion-exchange, and resin property counterweight metal removal has considerable influence.Ion exchange resin commonly used has Zeo-karb, anionite-exchange resin, resin and humic acids resin etc.
Ion exchange method is optionally to remove heavy metal ion, and technology is simple, easy and simple to handle, and removal effect is fine.Compare with electrolytic process with the precipitator method, ion exchange method has certain advantage aspect the wastewater treatment of lower concentration, but this method is subjected to the influence of impurity in the loading capacity, waste water of resin and the restriction of exchanger kind, output and cost, and the pre-treatment to waste water is had relatively high expectations, and the processing of regeneration of ion-exchange resin and regenerated liquid also is an insoluble problem.
4, absorption method
Absorption method comes down to the attraction of adsorbent activity surface to heavy metal ion, is the adsorption that utilizes the porousness solid matter, makes the heavy metal ion adsorbed a kind of method removed on the solid adsorbent surface in the waste water.The most frequently used sorbent material is a gac, but it costs an arm and a leg, and work-ing life is short, needs regeneration, the process cost height.In addition, it is applied widely that absorption method is handled heavy metal-containing waste water, can not cause secondary pollution, but sorbent material often the adsorption selectivity to heavy metal ion is not high, can not obtain excellent popularization.
In sum, the technology of the nickeliferous ion plating waste water of existing processing exists weak points such as complex process, wayward, tool secondary pollution, clearance be low.
Summary of the invention
The objective of the invention is the existing complex process of technology at the nickeliferous ion plating waste water of existing processing, wayward, secondary pollution, weak point that clearance is low, provide that a kind of technology is simple, easy to control, non-secondary pollution, clearance height, the recyclable utilization of sedimentary heavy metal nickel the electrolysis treatment Treating Electroplate Wastewater Containing Nickel and reclaim the method for nickel.
The technical solution adopted in the present invention is finished in the following way: a kind of electrolysis treatment Treating Electroplate Wastewater Containing Nickel also reclaims the method for nickel, the electrolysis treatment Treating Electroplate Wastewater Containing Nickel is undertaken by electrolysis treatment Treating Electroplate Wastewater Containing Nickel device, electrolysis treatment Treating Electroplate Wastewater Containing Nickel device comprises electrolyzer and electrolytic solution whipping appts, electrolyzer adopts the glass electrolyzer, anode adopts titanium base platinum electrode, negative electrode adopts nickel electrode or Graphite Electrodes, anode and negative electrode are pressed one pole parallel way staggered arrangement, be provided with venting port and opening for feed at the electrolyzer top, on opening for feed, be provided with valve, in electrolyzer, be provided with pH meter, be provided with discharge port at bottom of electrolytic tank, on discharge port, be provided with valve; The electrolytic solution whipping appts is by the pH regulator groove, agitator, tubing one, recycle pump, tubing two, tubing three is formed, recycle pump joins with an end of tubing one and tubing two respectively, tubing section one by one is located at the interior anode of electrolyzer and the below of negative electrode, be positioned on the tubing one of anode below and have fluid hole, the bottom liquid outlet of the other end of tubing two and pH regulator groove joins, one end of tubing three and the fluid inlet of pH regulator groove join, the liquid outlet at the high liquid level place of the other end of tubing three and electrolyzer joins, and is provided with throttling valve on tubing three.
The method of electrolysis treatment Treating Electroplate Wastewater Containing Nickel is: before the electrolysis treatment, put into electrolyzer as electrolytic solution in the nickeliferous electroplating wastewater, add alkaline solution to regulate the pH value of electroplating wastewater in electrolytic solution, the spacing between anode and the negative electrode is set to 5～21mm; During electrolysis, logical 0.5～10V direct current, negative electrode and anode are analysed nickel and oxygen evolution reaction respectively, and its principle of electrochemical reaction is as follows:
The reaction of negative electrode is: Ni
2++ 2e-=Ni ↓
The anodic reaction is: 4OH
--4e
-=2H
2O+O
2↑
In electrolytic process, along with anode electrolysis OH
-Emit oxygen, constantly reduce as the pH value in the Treating Electroplate Wastewater Containing Nickel of electrolytic solution, in order to prevent that the nickel that negative plate is separated out from dissolving once more, in electrolytic solution, add alkaline solution, the pH value of electrolytic solution is adjusted between 6.0～9.0, by the electric charge semi-invariant of metering electrolytic solution, the nickel that the anticathode plate is separated out is recycled.
In the method for electrolysis treatment Treating Electroplate Wastewater Containing Nickel, before electrolysis treatment, the alkaline solution that adds in the Treating Electroplate Wastewater Containing Nickel as electrolytic solution is NaOH solution or Ca (OH)
2Solution is with pH value range regulation to 5.0～7.5 of electrolytic solution.
In the method for electrolysis treatment Treating Electroplate Wastewater Containing Nickel, the method that adds alkaline solution in electrolytic solution is to adopt the mode of injecting in the anode bottom to carry out, and the add-on of alkaline solution is greater than OH that anode electrolysis consumed
-Amount, and less than OH contained in the nickel hydroxide solubility product
-Amount.
In the method for electrolysis treatment Treating Electroplate Wastewater Containing Nickel, in electrolytic process, the alkaline solution that is added in electrolytic solution is NaOH solution or Ca (OH)
2Solution.
In the method for electrolysis treatment Treating Electroplate Wastewater Containing Nickel, in electrolytic process, electric charge semi-invariant by the metering electroplating wastewater determine to reclaim the time of separating out nickel on the negative electrode, and when the nickel of separating out when negative plate reached certain thickness, the nickel that the anticathode plate is separated out was recycled; Wherein, the mean thickness that negative plate is separated out nickel is controlled at less than 3/5 of polar plate spacing, constantly accumulates in cathode surface and causes the pole plate short circuit problem thereby solved in the electrolytic process nickel simple substance, has determined the recovery time of nickel.
In the method for electrolysis treatment Treating Electroplate Wastewater Containing Nickel, electrolysis time is 0.5～4.5 hour.
The present invention compares with the treatment process of existing Treating Electroplate Wastewater Containing Nickel, has following characteristics:
1, before electrolysis treatment, add pH value range regulation to 5.0～7.5 of an amount of alkaline solution with waste water, avoid the acidity of electroplating wastewater strong excessively, hinder the negative plate electrolysis and separate out nickel.
2, in electrolytic process, the pH value that the mode that adopts pole plate bottom on the sunny side to inject alkaline solution is regulated waste water, the add-on of alkaline solution is greater than OH that anode electrolysis consumed
-Amount, thus prevented because anode electrolysis OH
-The negative plate that causes waste water ph decline to be caused is separated out the dissolving once more of nickel, reduces negative plate electrolysis liberation of hydrogen side reaction: 2H
++ 2e
-=H
2↑; The add-on of alkaline solution again should be less than OH contained in the nickel hydroxide solubility product simultaneously
-Amount is to prevent to generate the tiny nickel hydroxide precipitate particle that is difficult to remove.
3, in electrolytic process, the electric charge semi-invariant of metering waste water, when the nickel of separating out when negative plate reached certain thickness, the nickel that the anticathode plate is separated out was recycled; Wherein, the mean thickness that negative plate is separated out nickel is controlled at less than 3/5 of polar plate spacing, constantly accumulates in cathode surface and causes the pole plate short circuit problem thereby solved in the electrolytic process nickel simple substance, has determined the recovery time of nickel.
4, negative electrode adopts nickel electrode or Graphite Electrodes, in the electrolytic process on the negative plate impurity outside the no nickel separate out, thereby guarantee the high purity of recovery nickel.Treating Electroplate Wastewater Containing Nickel is after this art breading, and the content of the clearance of nickel nickel up to 98.70%～99.99%, in the water outlet is less than 0.5mg/L, and the pH value reaches national grade one discharge standard between 6.0～9.0.
5, equipment and technical process are simple, adopt the direct current of 0.5～10V, and processing cost is low, helps realizing suitability for industrialized production.And nickel ion is separated out at negative plate with the form of simple substance, convenient collect, recycles, and has avoided secondary pollution, meets " turn waste into wealth, changing waste into resources " principle fully.Belong to the technical process of the environmentally friendly nickeliferous ion plating waste water of processing, meet the current strategic development requirement of China, have application value.
Description of drawings
Fig. 1 is the structural representation of electrolysis treatment Treating Electroplate Wastewater Containing Nickel device.
Embodiment
Contrast accompanying drawing below, the invention will be further described by embodiment.
Embodiment 1:
With reference to accompanying drawing 1, a kind of electrolysis treatment Treating Electroplate Wastewater Containing Nickel also reclaims the method for nickel, the electrolysis treatment Treating Electroplate Wastewater Containing Nickel is undertaken by electrolysis treatment Treating Electroplate Wastewater Containing Nickel device, electrolysis treatment Treating Electroplate Wastewater Containing Nickel device comprises electrolyzer 1 and electrolytic solution whipping appts, electrolyzer 1 adopts the glass electrolyzer, anode 3 adopts titanium base platinum electrode, negative electrode 4 adopts nickel electrode, anode 3 is pressed one pole parallel way staggered arrangement with negative electrode 4, be provided with venting port 5 and opening for feed 7 at electrolyzer 1 top, on opening for feed 7, be provided with valve, in electrolyzer 1, be provided with pH meter 6, be provided with discharge port 8 in electrolyzer 1 bottom, on discharge port 8, be provided with valve; The electrolytic solution whipping appts is by pH regulator groove 9, agitator 10, tubing 1, recycle pump 13, tubing 2 14, tubing 3 15 is formed, recycle pump 13 joins with an end of tubing 1 and tubing 2 14 respectively, one 11 one sections of tubings are located at the below of anode 3 and negative electrode 4 in the electrolyzer 1, be positioned on the tubing 1 of anode 3 belows and have fluid hole 12, the bottom liquid outlet of the other end of tubing 2 14 and pH regulator groove 9 joins, one end of tubing 3 15 and the fluid inlet of pH regulator groove 9 join, the liquid outlet at the high liquid level place of the other end of tubing 3 15 and electrolyzer 1 joins, and is provided with throttling valve 16 on tubing 3 15.
The method of electrolysis treatment Treating Electroplate Wastewater Containing Nickel is: the electroplating wastewater that contains nickel concentration and be 35.0mg/L enters in the electrolyzer 1 as electrolytic solution 2 by opening for feed 7, adds proper C a (OH) in electrolytic solution 2
2Solution is adjusted to 5.0 with the pH value of electroplating wastewater, and the spacing between anode 3 and the negative electrode 4 is 5mm; During electrolysis, logical 0.5V direct current, Ca (OH)
2Solution adds in the pH regulator groove 9 of electrolytic solution whipping appts, by the fluid hole 12 on the tubing 1 of electrolytic solution whipping appts, slowly adds 0.1mol/L Ca (OH) below anode 3
2Solution makes the pH value of electroplating wastewater reach 6.0, and electrolysis time is 3 hours.In electrolytic process, the electric charge semi-invariant of metering waste water, when the mean thickness of separating out nickel when negative plate reached 3/5 polar plate spacing, the nickel that the anticathode plate is separated out was recycled.In electrolytic process, the oxygen that anode 3 is separated out is discharged from venting port 5.After electrolysis finishes treated electroplating wastewater is discharged from discharge port 8, the residual quantity that records nickel ion in the treated electroplating wastewater is 0.45mg/L, thereby the clearance that calculates nickel ion is 98.71%.
Embodiment 2:
With reference to accompanying drawing 1, the electrolysis treatment Treating Electroplate Wastewater Containing Nickel device that electrolytic process purifies nickeliferous ion plating waste water is identical with example 1.
The method of electrolysis treatment Treating Electroplate Wastewater Containing Nickel is: the electroplating wastewater that contains nickel concentration and be 100.0mg/L enters in the electrolyzer 1 as electrolytic solution 2 by opening for feed 7, adds proper C a (OH) in electrolytic solution 2
2Solution is adjusted to 6.5 with the pH value of electroplating wastewater, and the spacing between anode 3 and the negative electrode 4 is 20mm; During electrolysis, logical 10V direct current, Ca (OH)
2Solution adds in the pH regulator groove 9 of electrolytic solution whipping appts, by the fluid hole 12 on the tubing 1 of electrolytic solution whipping appts, slowly adds 0.1mol/L Ca (OH) below anode 3
2Solution makes the pH value of electroplating wastewater reach 6.9, and electrolysis time is 4 hours.In electrolytic process, the electric charge semi-invariant of metering waste water, when the mean thickness of separating out nickel when negative plate reached 3/5 polar plate spacing, the nickel that the anticathode plate is separated out was recycled.In electrolytic process, the oxygen that anode 3 is separated out is discharged from venting port 5.After electrolysis finishes treated electroplating wastewater is discharged from discharge port 8, the residual quantity that records nickel ion in the treated electroplating wastewater is 0.01mg/L, thereby the clearance that calculates nickel ion is 99.99%.
Embodiment 3:
With reference to accompanying drawing 1, it is basic identical that electrolytic process purifies the electrolysis treatment Treating Electroplate Wastewater Containing Nickel device and the example 1 of nickeliferous ion plating waste water, and wherein, negative electrode 4 adopts Graphite Electrodess.The method of electrolysis treatment Treating Electroplate Wastewater Containing Nickel is: the electroplating wastewater that contains nickel concentration and be 100.0mg/L enters in the electrolyzer 1 as electrolytic solution 2 by opening for feed 7, adding appropriate amount of NaOH solution is adjusted to 6.9 with the pH value of electroplating wastewater in electrolytic solution 2, and the spacing between anode 3 and the negative electrode 4 is 15mm; During electrolysis, logical 8V direct current, NaOH solution add in the pH regulator groove 9 of electrolytic solution whipping appts, by the fluid hole 12 on the tubing 1 of electrolytic solution whipping appts, slowly add 1mol/L NaOH solution and make the pH value of electroplating wastewater reach 7.2 below anode 3, electrolysis time is 4.5 hours.In electrolytic process, the electric charge semi-invariant of metering waste water, when the mean thickness of separating out nickel when negative plate reached 1/2 polar plate spacing, the nickel that the anticathode plate is separated out was recycled.In electrolytic process, the oxygen that anode 3 is separated out is discharged from venting port 5.After electrolysis finishes treated electroplating wastewater is discharged from discharge port 8, the residual quantity that records nickel ion in the treated electroplating wastewater is 0.18mg/L, thereby the clearance that calculates nickel ion is 99.82%.
Embodiment 4:
With reference to accompanying drawing 1, it is basic identical that electrolytic process purifies the electrolysis treatment Treating Electroplate Wastewater Containing Nickel device and the example 1 of nickeliferous ion plating waste water, and wherein, negative electrode 4 adopts Graphite Electrodess.The method of electrolysis treatment Treating Electroplate Wastewater Containing Nickel is: the electroplating wastewater that contains nickel concentration and be 80.0mg/L enters in the electrolyzer 1 as electrolytic solution 2 by opening for feed 7, adding appropriate amount of NaOH solution is adjusted to 7.2 with the pH value of electroplating wastewater in electrolytic solution 2, and the spacing between anode 3 and the negative electrode 4 is 17mm; During electrolysis, logical 5V direct current, NaOH solution add in the pH regulator groove 9 of electrolytic solution whipping appts, by the fluid hole 12 on the tubing 1 of electrolytic solution whipping appts, slowly add 1mol/L NaOH solution and make the pH value of electroplating wastewater reach 7.5 below anode 3, electrolysis time is 2 hours.In electrolytic process, the electric charge semi-invariant of metering waste water, when the mean thickness of separating out nickel when negative plate reached 3/5 polar plate spacing, the nickel that the anticathode plate is separated out was recycled.In electrolytic process, the oxygen that anode 3 is separated out is discharged from venting port 5.After electrolysis finishes treated electroplating wastewater is discharged from discharge port 8, the residual quantity that records nickel ion in the treated electroplating wastewater is 0.47mg/L, thereby the clearance that calculates nickel ion is 99.41%.
Embodiment 5:
With reference to accompanying drawing 1, the electrolysis treatment Treating Electroplate Wastewater Containing Nickel device that electrolytic process purifies nickeliferous ion plating waste water is identical with example 1.The method of electrolysis treatment Treating Electroplate Wastewater Containing Nickel is: the electroplating wastewater that contains nickel concentration and be 30.0mg/L enters in the electrolyzer 1 as electrolytic solution 2 by opening for feed 7, adding appropriate amount of NaOH solution is adjusted to 7.5 with the pH value of electroplating wastewater in electrolytic solution 2, and the spacing between anode 3 and the negative electrode 4 is 8mm; During electrolysis, logical 5V direct current, NaOH solution add in the pH regulator groove 9 of electrolytic solution whipping appts, by the fluid hole 12 on the tubing 1 of electrolytic solution whipping appts, slowly add 1mol/L NaOH solution and make the pH value of electroplating wastewater reach 9.0 below anode 3, electrolysis time is 0.5 hour.In electrolytic process, the electric charge semi-invariant of metering waste water, when the mean thickness of separating out nickel when negative plate reached 1/2 polar plate spacing, the nickel that the anticathode plate is separated out was recycled.In electrolytic process, the oxygen that anode 3 is separated out is discharged from venting port 5.After electrolysis finishes treated electroplating wastewater is discharged from discharge port 8, the residual quantity that records nickel ion in the treated electroplating wastewater is 0.39mg/L, thereby the clearance that calculates nickel ion is 98.70%.
Claims (9)
1. an electrolysis treatment Treating Electroplate Wastewater Containing Nickel and reclaim the method for nickel, it is characterized in that: the electrolysis treatment Treating Electroplate Wastewater Containing Nickel is undertaken by electrolysis treatment Treating Electroplate Wastewater Containing Nickel device, electrolysis treatment Treating Electroplate Wastewater Containing Nickel device comprises electrolyzer and electrolytic solution whipping appts, anode adopts titanium base platinum electrode, negative electrode adopts nickel electrode or Graphite Electrodes, is provided with pH meter in electrolyzer; The electrolytic solution whipping appts is made up of pH regulator groove, agitator, tubing one, recycle pump, tubing two, tubing three, recycle pump joins with an end of tubing one and tubing two respectively, tubing section one by one is located at the interior anode of electrolyzer and the below of negative electrode, be positioned on the tubing one of anode below and have fluid hole, the bottom liquid outlet of the other end of tubing two and pH regulator groove joins, one end of tubing three and the fluid inlet of pH regulator groove join, and the liquid outlet at the high liquid level (HLL) place of the other end of tubing three and electrolyzer joins.
2. a kind of electrolysis treatment Treating Electroplate Wastewater Containing Nickel according to claim 1 also reclaims the method for nickel, it is characterized in that: electrolyzer adopts the glass electrolyzer, anode and negative electrode are pressed one pole parallel way staggered arrangement, be provided with venting port and opening for feed at the electrolyzer top, on opening for feed, be provided with valve, be provided with discharge port at bottom of electrolytic tank, on discharge port, be provided with valve, on the tubing three of electrolytic solution whipping appts, be provided with throttling valve.
3. a kind of electrolysis treatment Treating Electroplate Wastewater Containing Nickel according to claim 1 and 2 also reclaims the method for nickel, it is characterized in that: the method for electrolysis treatment Treating Electroplate Wastewater Containing Nickel is: before the electrolysis treatment, put into electrolyzer as electrolytic solution in the nickeliferous electroplating wastewater, add alkaline solution to regulate the pH value of electroplating wastewater in electrolytic solution, the spacing between anode and the negative electrode is set to 5～21mm; During electrolysis, logical 0.5～10V direct current, negative electrode and anode are analysed nickel and oxygen evolution reaction respectively, and its principle of electrochemical reaction is as follows:
The reaction of negative electrode is: Ni
2++ 2e-=Ni ↓
The anodic reaction is: 4OH
--4e
-=2H
2O+O
2↑
In electrolytic process, along with anode electrolysis OH
-Emit oxygen, constantly reduce as the pH value in the Treating Electroplate Wastewater Containing Nickel of electrolytic solution, in order to prevent that the nickel that negative plate is separated out from dissolving once more, in electrolytic solution, add alkaline solution, the pH value of electrolytic solution is adjusted between 6.0～9.0, by the electric charge semi-invariant of metering electrolytic solution, the nickel that the anticathode plate is separated out is recycled.
4. a kind of electrolysis treatment Treating Electroplate Wastewater Containing Nickel according to claim 3 also reclaims the method for nickel, it is characterized in that: before Treating Electroplate Wastewater Containing Nickel was carried out electrolysis treatment, the alkaline solution that adds in the Treating Electroplate Wastewater Containing Nickel as electrolytic solution was NaOH solution or Ca (OH)
2Solution is with pH value range regulation to 5.0～7.5 of electrolytic solution.
5. a kind of electrolysis treatment Treating Electroplate Wastewater Containing Nickel according to claim 3 also reclaims the method for nickel, it is characterized in that: in electrolytic process, the method that adds alkaline solution in electrolytic solution is to adopt the mode of injecting in the anode bottom to carry out, and the add-on of alkaline solution is greater than OH that anode electrolysis consumed
-Amount, and less than OH contained in the nickel hydroxide solubility product
-Amount.
6. a kind of electrolysis treatment Treating Electroplate Wastewater Containing Nickel according to claim 5 also reclaims the method for nickel, and it is characterized in that: the alkaline solution that is added in electrolytic solution is NaOH solution or Ca (OH)
2Solution.
7. a kind of electrolysis treatment Treating Electroplate Wastewater Containing Nickel according to claim 3 also reclaims the method for nickel, it is characterized in that: in electrolytic process, determine to reclaim the time of separating out nickel on the negative electrode by the electric charge semi-invariant of metering electroplating wastewater, when the nickel of separating out when negative plate reached certain thickness, the nickel that the anticathode plate is separated out was recycled; Wherein, the negative plate mean thickness of separating out nickel is controlled at less than 3/5 of polar plate spacing.
8. a kind of electrolysis treatment Treating Electroplate Wastewater Containing Nickel according to claim 7 also reclaims the method for nickel, and it is characterized in that: the electrolysis time of electrolysis treatment Treating Electroplate Wastewater Containing Nickel is 0.5～4.5 hour.
9. a kind of electrolysis treatment Treating Electroplate Wastewater Containing Nickel according to claim 4 also reclaims the method for nickel, it is characterized in that: in electrolytic process, the method that adds alkaline solution in electrolytic solution is to adopt the mode of injecting in the anode bottom to carry out, and the add-on of alkaline solution is greater than OH that anode electrolysis consumed
-Amount, and less than OH contained in the nickel hydroxide solubility product
-Amount; The alkaline solution that is added in electrolytic solution is NaOH solution or Ca (OH)
2Solution; In electrolytic process, determine to reclaim the time of separating out nickel on the negative electrode by the electric charge semi-invariant of metering electroplating wastewater, when the nickel of separating out when negative plate reaches certain thickness, the nickel that the anticathode plate is separated out is recycled, wherein, the negative plate mean thickness of separating out nickel is controlled at less than 3/5 of polar plate spacing; The electrolysis time of electrolysis treatment Treating Electroplate Wastewater Containing Nickel is 0.5～4.5 hour.
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|---|---|---|---|
| CN2009101547664A CN101717135B (en) | 2009-12-04 | 2009-12-04 | Method for treating nickel-containing electroplating wastewater and recovering nickel by electrolysis |
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|---|---|---|---|
| CN2009101547664A CN101717135B (en) | 2009-12-04 | 2009-12-04 | Method for treating nickel-containing electroplating wastewater and recovering nickel by electrolysis |
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Family Cites Families (5)
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-
2009
- 2009-12-04 CN CN2009101547664A patent/CN101717135B/en not_active Expired - Fee Related
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| CN102583842A (en) * | 2011-01-06 | 2012-07-18 | 湖南万容科技股份有限公司 | Recycling process of nickel in plating waste water |
| CN102583842B (en) * | 2011-01-06 | 2014-04-09 | 湖南万容科技股份有限公司 | Recycling process of nickel in plating waste water |
| CN102381790A (en) * | 2011-10-13 | 2012-03-21 | 农业部环境保护科研监测所 | Method and apparatus for treating underground drinking water containing high density ferro-manganese |
| CN103011347A (en) * | 2012-06-01 | 2013-04-03 | 浙江师范大学 | Method for carrying out electrolytic treatment on copper-containing electroplating wastewater and recycling copper |
| CN103011347B (en) * | 2012-06-01 | 2014-03-05 | 浙江师范大学 | Method for carrying out electrolytic treatment on copper-containing electroplating wastewater and recycling copper |
| CN103787467A (en) * | 2014-01-24 | 2014-05-14 | 江苏凯力克钴业股份有限公司 | Equipment and process for treating nickel-cobalt wastewater in hydrometallurgy industry through electrolytic method |
| CN103833110A (en) * | 2014-01-24 | 2014-06-04 | 江苏凯力克钴业股份有限公司 | Device for treating nickel-cobalt sewage in the hydrometallurgy industry by electrolytic method |
| CN109422333A (en) * | 2017-08-21 | 2019-03-05 | 光大水务科技发展（南京）有限公司 | The processing method of Treating Electroplate Wastewater Containing Nickel |
| CN109809600A (en) * | 2019-03-15 | 2019-05-28 | 深圳市世清环保科技有限公司 | The quickly device of processing chemical nickel Ageing solution |
| CN112979044A (en) * | 2021-03-08 | 2021-06-18 | 南昌航空大学 | Chemical nickel plating wastewater treatment and recovery unit |
| CN114835314A (en) * | 2022-05-17 | 2022-08-02 | 哈尔滨工业大学 | Method for recovering nickel from chemical nickel plating waste liquid |
| CN114835314B (en) * | 2022-05-17 | 2023-09-01 | 哈尔滨工业大学 | Method for recycling nickel from chemical nickel plating waste liquid |
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