CN108117216A - A kind for the treatment of method of chemical nickel-plating wastewater - Google Patents
A kind for the treatment of method of chemical nickel-plating wastewater Download PDFInfo
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- CN108117216A CN108117216A CN201711434853.6A CN201711434853A CN108117216A CN 108117216 A CN108117216 A CN 108117216A CN 201711434853 A CN201711434853 A CN 201711434853A CN 108117216 A CN108117216 A CN 108117216A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
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Abstract
The present invention relates to a kind for the treatment of method of chemical nickel-plating wastewater, comprise the following steps：A. chemical nickeling ageing liquid and chemical nickel plating poaching wastewater complex compound are abolished；B. flocculation treatment is carried out to the heavy metal ion in chemical nickeling ageing liquid and chemical nickel plating poaching wastewater, chemical nickeling ageing liquid flocculated mixture progress separation of solid and liquid is obtained into solid one and solution one, chemical nickel plating poaching wastewater flocculated mixture progress separation of solid and liquid is obtained into solid two and solution two；C. processing, the fresh water obtained after processing and concentrated water, the fresh water reuse are filtered to solution two；D. solution one and concentrated water are evaporated condensing crystallizing processing, obtain evaporation condensate and solid salt, the evaporation condensate reuse, solid salt waste treatment.Chemical nickle-plating wastewater zero-emission and the effect that chemical nickle-plating wastewater can recycle can be realized by the above method.
Description
Technical field
The present invention relates to field of waste water treatment, more particularly to a kind for the treatment of method of chemical nickel-plating wastewater.
Background technology
Chemical plating is also known as electroless plating, refers under certain condition, and the metal ion in aqueous solution is reduced agent reduction,
And the process being deposited on solid matrix surface.Chemical nickel plating is one kind with fastest developing speed in chemical plating, and plating solution is generally with sulphur
Sour nickel, nickel acetate etc. are that main salt, hypophosphite, sodium borohydride, borine, hydrazine etc. is reducing agent, then add various auxiliary agents, 90
DEG C acid solution or operation is carried out close in the neutral solution of room temperature, alkaline solution, coating is in uniformity, corrosion resistance, hard
Degree, solderability, all show superiority in dicoration at magnetism.
Chemical nickle-plating wastewater is broadly divided into technology groove Ageing solution and poaching wastewater, and chemical nickle-plating wastewater causes serious pollution to the environment,
Waste water yield is big, and the composition of Ageing solution and waste water is more complicated, contains inorganic salts, complex compound, organic matter etc., therefore changes
It is relatively difficult to learn the processing of nickel-plating waste water, the processing of waste liquid and waste water at present is mainly handed over using chemical precipitation method, electrolysis, ion
Change method, catalytic reduction method, electroosmose process, film osmosis, bioanalysis etc..But most single methods cannot all obtain well
Treatment effect, it is impossible to realize wastewater zero discharge and waste water can not recycle.
The content of the invention
It can realize that chemical nickle-plating wastewater zero-emission and chemical nickle-plating wastewater can be with it is an object of the invention to provide one kind
The treatment method of chemical nickel-plating wastewater of recycling.
In order to achieve the above object, the technical solution adopted by the present invention is：A kind for the treatment of method of chemical nickel-plating wastewater, including with
Lower step：
A. the hypophosphite ion in chemical nickeling ageing liquid is oxidized to by positive phosphorus acid ion using Fenton's reaction and broken
Except the complex compound in chemical nickeling ageing liquid, chemical nickel plating poaching wastewater pH value is adjusted to 2-3 and adds in hydrogen peroxide and abolishes complexing
Object reduces the COD in chemical nickeling ageing liquid and chemical nickel plating poaching wastewater；
B. wad a quilt with cotton to the heavy metal ion in step a treated chemical nickeling ageing liquids and chemical nickel plating poaching wastewater
Chemical nickeling ageing liquid flocculated mixture progress separation of solid and liquid is obtained solid one and solution one, chemical nickel plating is floated by solidifying processing
It washes waste water flocculating mixture progress separation of solid and liquid and obtains solid two and solution two；
C. processing, the fresh water obtained after processing and concentrated water are filtered to solution two described in step b, the fresh water returns
With；
D. the solution one described in step b and the concentrated water described in step c are evaporated condensing crystallizing processing, obtain evaporating cold
Lime set and solid salt, the evaporation condensate reuse, solid salt waste treatment.
Fenton's reaction includes the following steps in the step a：Chemical nickeling ageing liquid pH is adjusted to 2-3, adds sulfuric acid
Ferrous and hydrogen peroxide simultaneously stirs.
Flocculation treatment includes the following steps in the step b：It adjusts through step a treated chemical nickeling ageing liquid and changes
Nickel-plating rinsing waste water pH value is learned to 10-12, and adds in heavy metal chelating agent, object to be precipitated is not increasing, respectively to chemical nickel plating
Aluminium polychloride and polyacrylamide are added in Ageing solution and chemical nickel plating poaching wastewater.
Two filtration treatment of solution is to first pass through husky filter and active carbon filtration in the step c, then passes sequentially through bag type filtering
Device, resin demineralizer finally by ultrafiltration and secondary reverse osmosis obtain fresh water.
The solution two starts secondary reverse osmosis preceding electrical conductivity and is not more than 5000 μ s/cm.
Chemical nickeling ageing liquid flocculated mixture and chemical nickel plating poaching wastewater flocculated mixture are to pass through in the step b
Plate and frame filter press carries out separation of solid and liquid.
Solution one and concentrated water are to be evaporated condensing crystallizing by triple effect multi-stage evaporator in the step d.
By using Fenton's reaction by the hypophosphite ion in chemical nickeling ageing liquid be oxidized to positive phosphorus acid ion and
The complex compound in chemical nickeling ageing liquid is abolished, then chemical nickeling ageing liquid carries out flocculation treatment and separation of solid and liquid to treated
Solid one and solution one are obtained, by adjusting chemical nickel plating poaching wastewater pH value to 2-3 and add in hydrogen peroxide and abolish complex compound, then
Flocculation treatment is carried out to treated chemical nickel plating poaching wastewater and separation of solid and liquid obtains solid two and solution two, then to solution two
Be filtered to obtain fresh water and concentrated water, fresh water reuse, solution one and concentrated water by evaporating, concentrating and crystallizing obtain evaporation condensate and
Solid salt, the evaporation condensate reuse, solid one, solid two and solid salt waste treatment can be realized by the above method
The effect that chemical nickle-plating wastewater zero-emission and chemical nickle-plating wastewater can recycle.
Specific embodiment
With reference to embodiment, the present invention is described in further detail.
A kind for the treatment of method of chemical nickel-plating wastewater, comprises the following steps：
A. the hypophosphite ion in chemical nickeling ageing liquid is oxidized to by positive phosphorus acid ion using Fenton's reaction and broken
Except the complex compound in chemical nickeling ageing liquid, chemical nickel plating poaching wastewater pH value is adjusted to 2-3 and adds in hydrogen peroxide and abolishes complexing
Object reduces the COD in chemical nickeling ageing liquid and chemical nickel plating poaching wastewater；
B. wad a quilt with cotton to the heavy metal ion in step a treated chemical nickeling ageing liquids and chemical nickel plating poaching wastewater
Chemical nickeling ageing liquid flocculated mixture progress separation of solid and liquid is obtained solid one and solution one, chemical nickel plating is floated by solidifying processing
It washes waste water flocculating mixture progress separation of solid and liquid and obtains solid two and solution two；
C. processing, the fresh water obtained after processing and concentrated water are filtered to solution two described in step b, the fresh water returns
With；
D. the solution one described in step b and the concentrated water described in step c are evaporated condensing crystallizing processing, obtain evaporating cold
Lime set and solid salt, the evaporation condensate reuse, solid salt waste treatment.
Fenton's reaction includes the following steps in the step a：Chemical nickeling ageing liquid pH is adjusted to 2-3, adds sulfuric acid
Ferrous and hydrogen peroxide simultaneously stirs.
Flocculation treatment includes the following steps in the step b：It adjusts through step a treated chemical nickeling ageing liquid and changes
Nickel-plating rinsing waste water pH value is learned to 10-12, and adds in heavy metal chelating agent, object to be precipitated is not increasing, respectively to chemical nickel plating
Aluminium polychloride and polyacrylamide are added in Ageing solution and chemical nickel plating poaching wastewater.
Two filtration treatment of solution is to first pass through husky filter and active carbon filtration in the step c, then passes sequentially through bag type filtering
Device, resin demineralizer finally by ultrafiltration and secondary reverse osmosis obtain fresh water.
The solution two starts secondary reverse osmosis preceding electrical conductivity and is not more than 5000 μ s/cm.
Chemical nickeling ageing liquid flocculated mixture and chemical nickel plating poaching wastewater flocculated mixture are to pass through in the step b
Plate and frame filter press carries out separation of solid and liquid.
Solution one and concentrated water are to be evaporated condensing crystallizing by triple effect multi-stage evaporator in the step d.
Table 1 is each detection content before and after wastewater treatment：
| Detection | Before processing | After processing |
| Nickel (mg/L) | 7000 | 0.001 |
| COD(mg/L) | 11000 | 0.02 |
| Phosphorus (mg/L) | 44500 | 0.003 |
| Ammonia nitrogen (mg/L) | 30100 | 0.009 |
Table 1
By being compared to each detection assay before and after wastewater treatment, in method treated the waste water of the present invention
Nickel, COD, phosphorus and ammonia-nitrogen content are respectively 0.001mg/L, 0.02mg/L, 0.003mg/L and 0.009mg/L, high treating effect,
Hypophosphite ion in chemical nickeling ageing liquid is oxidized to positive phosphorus acid ion with Fenton's reaction and abolishes chemistry by the present invention
Complex compound in nickel plating Ageing solution, then flocculation treatment is carried out to treated chemical nickeling ageing liquid and separation of solid and liquid obtains solid
One and solution one, by adjusting chemical nickel plating poaching wastewater pH value to 2-3 and add in hydrogen peroxide and abolish complex compound, then to processing after
Chemical nickel plating poaching wastewater carry out flocculation treatment and separation of solid and liquid and obtain solid two and solution two, then solution two is filtered
Fresh water and concentrated water, fresh water reuse are obtained, solution one and concentrated water obtain evaporation condensate and solid salt by evaporating, concentrating and crystallizing, institute
Evaporation condensate reuse is stated, solid one, solid two and solid salt waste treatment can realize that chemical nickel plating gives up by the above method
The effect that water zero discharge and chemical nickle-plating wastewater can recycle.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
It encloses and is defined, on the premise of design spirit of the present invention is not departed from, those of ordinary skill in the art are to the technical side of the present invention
The various modifications and improvement that case is made should all be fallen into the protection domain that claims of the present invention determines.
Claims (7)
1. a kind for the treatment of method of chemical nickel-plating wastewater, it is characterised in that comprise the following steps：
A. the hypophosphite ion in chemical nickeling ageing liquid is oxidized to by positive phosphorus acid ion and abolishing using Fenton's reaction
The complex compound in nickel plating Ageing solution is learned, adjust chemical nickel plating poaching wastewater pH value to 2-3 and adds in hydrogen peroxide and abolishes complex compound, is dropped
COD in low chemical nickeling ageing liquid and chemical nickel plating poaching wastewater；
B. the heavy metal ion in step a treated chemical nickeling ageing liquids and chemical nickel plating poaching wastewater is carried out at flocculation
Chemical nickeling ageing liquid flocculated mixture progress separation of solid and liquid is obtained solid one and solution one, chemical nickel plating is rinsed useless by reason
Water flocculation mixture carries out separation of solid and liquid and obtains solid two and solution two；
C. processing, the fresh water obtained after processing and concentrated water, the fresh water reuse are filtered to solution two described in step b；
D. the solution one described in step b and the concentrated water described in step c are evaporated condensing crystallizing processing, obtain evaporation condensate
And solid salt, the evaporation condensate reuse, solid salt waste treatment.
2. a kind for the treatment of method of chemical nickel-plating wastewater as described in claim 1, it is characterised in that：Fenton is anti-in the step a
It should include the following steps：Chemical nickeling ageing liquid pH is adjusted to 2-3, add ferrous sulfate and hydrogen peroxide and is stirred.
3. a kind for the treatment of method of chemical nickel-plating wastewater as described in claim 1, it is characterised in that：In the step b at flocculation
Reason includes the following steps：It adjusts through step a treated chemical nickeling ageing liquids and chemical nickel plating poaching wastewater pH value to 10-
12, and heavy metal chelating agent is added in, object to be precipitated is not increasing, respectively to chemical nickeling ageing liquid and chemical nickel plating poaching wastewater
Middle addition aluminium polychloride and polyacrylamide.
4. a kind for the treatment of method of chemical nickel-plating wastewater as described in claim 1, it is characterised in that：Solution two in the step c
Filtration treatment is to first pass through husky filter and active carbon filtration, then passes sequentially through bag filter, resin demineralizer, finally by ultrafiltration
Reverse osmosis fresh water is obtained with secondary.
5. a kind for the treatment of method of chemical nickel-plating wastewater as claimed in claim 4, it is characterised in that：The solution two starts secondary
Electrical conductivity before reverse osmosis is not more than 5000 μ s/cm.
6. a kind for the treatment of method of chemical nickel-plating wastewater as described in claim 1, it is characterised in that：Chemical plating in the step b
Nickel Ageing solution flocculated mixture and chemical nickel plating poaching wastewater flocculated mixture are to carry out separation of solid and liquid by plate and frame filter press.
7. a kind for the treatment of method of chemical nickel-plating wastewater as described in claim 1, it is characterised in that：Solution one in the step d
It is that condensing crystallizing is evaporated by triple effect multi-stage evaporator with concentrated water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711434853.6A CN108117216A (en) | 2017-12-26 | 2017-12-26 | A kind for the treatment of method of chemical nickel-plating wastewater |
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| CN201711434853.6A CN108117216A (en) | 2017-12-26 | 2017-12-26 | A kind for the treatment of method of chemical nickel-plating wastewater |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019959A (en) * | 2018-08-09 | 2018-12-18 | 中国电子系统工程第二建设有限公司 | A kind of processing unit of strong complex state heavy metal wastewater thereby and its discharge and reuse technology |
| CN110451677A (en) * | 2018-12-26 | 2019-11-15 | 合肥恒力装备有限公司 | A kind of pickling lines rinsing waste-water treatment process |
| CN111072208A (en) * | 2019-12-23 | 2020-04-28 | 深圳市深投环保科技有限公司 | Advanced treatment method of chemical nickel plating waste liquid |
| CN112010454A (en) * | 2019-05-30 | 2020-12-01 | 上海顺樊环保科技有限公司 | Electroplating nickel-containing wastewater treatment and recovery method |
| CN113860615A (en) * | 2021-10-29 | 2021-12-31 | 深圳市福田区环境技术研究所有限公司 | Chemical nickel waste liquid treatment process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019959A (en) * | 2018-08-09 | 2018-12-18 | 中国电子系统工程第二建设有限公司 | A kind of processing unit of strong complex state heavy metal wastewater thereby and its discharge and reuse technology |
| CN110451677A (en) * | 2018-12-26 | 2019-11-15 | 合肥恒力装备有限公司 | A kind of pickling lines rinsing waste-water treatment process |
| CN112010454A (en) * | 2019-05-30 | 2020-12-01 | 上海顺樊环保科技有限公司 | Electroplating nickel-containing wastewater treatment and recovery method |
| CN111072208A (en) * | 2019-12-23 | 2020-04-28 | 深圳市深投环保科技有限公司 | Advanced treatment method of chemical nickel plating waste liquid |
| CN113860615A (en) * | 2021-10-29 | 2021-12-31 | 深圳市福田区环境技术研究所有限公司 | Chemical nickel waste liquid treatment process |
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