CN106477807B - Electroplating wastewater processing medicament and processing method - Google Patents
Electroplating wastewater processing medicament and processing method Download PDFInfo
- Publication number
- CN106477807B CN106477807B CN201610880242.3A CN201610880242A CN106477807B CN 106477807 B CN106477807 B CN 106477807B CN 201610880242 A CN201610880242 A CN 201610880242A CN 106477807 B CN106477807 B CN 106477807B
- Authority
- CN
- China
- Prior art keywords
- wastewater
- heavy metal
- processing
- electroplating
- electroplating wastewater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- 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
-
- 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
-
- 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
- C02F1/70—Treatment of water, waste water, or sewage by reduction
- C02F1/705—Reduction by metals
-
- 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
-
- 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
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/18—Cyanides
-
- 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
-
- 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
- C02F2101/203—Iron or iron compound
-
- 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
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
Abstract
The invention discloses a kind of electroplating wastewater processing medicaments, its main feature is that: be calculated as including following components and weight percentage of each component: heavy metal chelant 16-20%, vulcanized sodium 35-45%, polyethyleneimine 8-15%, poly sulfide are 20-40%；Also disclose a kind of electroplating effluent treatment method.Electroplating wastewater processing medicament of the invention and processing method can handle the copper in electroplating wastewater, nickel, zinc, lead, tin, chromium, mercury, magnesium, iron, cadmium, the metal ions such as silver and cyanide, it can also be in comprehensive wastewater in the very high situation of content of beary metal, also it can effectively handle, a part of COD can also be handled in wastewater treatment process simultaneously, the technique for especially having biochemical treatment, after carrying out heavy metal processing using this medicament, the heavy metal ion in water is handled in first discharge standard, the heavy metal handled in water is low very high to the survival rate of biochemical treatment biology mattress, COD high treating effect.
Description
Technical field
The invention belongs to technical field of sewage, more particularly, to a kind of electroplating wastewater processing medicament and processing method.
Background technique
The source of electroplating wastewater is general are as follows: plating piece ejected wash water, spent plating bath and other waste water, including mill floor is washed away,
Scrub pole plate wash water, ventilation equipment condensed water, and as coating bath leakage or operational administrative it is improper caused by " run, drip, leak "
Various tank liquors and draining.The water quality of electroplating wastewater, the process conditions of water and plating production, produce load, operational administrative with
The factors such as water use model are related.The water quality of electroplating wastewater is complicated, and ingredient is not easy to control, wherein containing copper, nickel, zinc, lead, tin, chromium,
The metal ions such as mercury, magnesium, iron, cadmium, silver and cyanide, some belong to carcinogenic, teratogenesis, mutagenic extremely toxic substance.
At this stage, conventional wastewater treatment method is generally by heavy metal capturing agent and heavy metal ions in wastewater
A kind of chelate of macromolecular is formed, flocculation sedimentation is then passed through, to remove the heavy metal ion in electroplating wastewater, but is handled
It is being up to state standards and few.
Summary of the invention
The purpose of the present invention is in view of the deficiency of the prior art, provide a kind of electroplating wastewater processing medicament and place
Reason method.
To achieve the goals above, the technical scheme adopted by the invention is that: a kind of electroplating wastewater processing medicament, including with
Lower component and weight percentage of each component are calculated as: heavy metal chelant 16-20%, vulcanized sodium 35-45%, polyethyleneimine
For 8-15%, poly sulfide is 20-40%.
A kind of electroplating wastewater processing medicament, including following components and weight percentage of each component are calculated as: heavy metal chelant
For 17-19%, vulcanized sodium 37-43%, polyethyleneimine 10-14%, poly sulfide is 25-35%.
A kind of electroplating wastewater processing medicament, including following components and weight percentage of each component are calculated as: heavy metal chelant
For 18-19%, vulcanized sodium 38-42%, polyethyleneimine 10-12%, poly sulfide is 28-32%.
A kind of electroplating wastewater processing medicament, including following components and weight percentage of each component are calculated as: heavy metal chelant
It is 17%, vulcanized sodium 40%, polyethyleneimine 13%, poly sulfide is 30%.
A kind of electroplating effluent treatment method, this approach includes the following steps,
A:
1) workshop discharge cyanide containing wastewater flow into cyanide containing wastewater collecting-tank after separately flow into level-one broken cyanide pond and
Second level broken cyanide pond carries out broken cyanide reaction, and it is to carry out oxidation with chlorine system oxidant under alkaline condition to break that cyanide containing wastewater, which adjusts PH,
Cyanogen, wherein level-one broken cyanide reacts: PH > 10, ORP=250-400mv, second level broken cyanide pH=8-9, ORP=500-650mmv, broken cyanide
Comprehensive wastewater collecting-tank is flowed into after the reaction was completed to be further processed；
2) workshop discharge containing hexavalent chromium wastewater flow into collecting-tank containing hexavalent chromium wastewater after inflow redox reaction pond into
Row redox reaction adjusts pH value to 2.5-3, ORP=200-300mv with dilute sulfuric acid first containing hexavalent chromium wastewater, then with by force
Hexavalent chrome reduction is trivalent chromium by reducing agent, is flowed into comprehensive wastewater collecting-tank after the completion of redox reaction and is carried out at next step
Reason；
3) the cupric nickel waste water of workshop discharge flows into nickel precipitation tank in term after flowing into cupric nickel waste water collecting-tank, reacts dosing
Process are as follows: adjust pH value to 10-11 with sodium hydroxide first, be then powered on waste electroplating treatment agent, followed by adding polyaluminium
Lead finally increases Molecularly Imprinted Polymer flocculant, by crosslinked action, makes to precipitate particle growth precipitating；The dirt of nickel precipitation tank in term
Sediment in mud cylinder is discharged into comprehensive wastewater collection after filtering by filter together with the precipitating supernatant water in nickel precipitation tank in term
Pond；
B: the comprehensive wastewater in comprehensive wastewater collecting-tank flows into comprehensive wastewater reaction treatment pond, reacts dosing process are as follows: first
First adjust pH value to 10-11 with sodium hydroxide, be then powered on waste electroplating treatment agent, followed by poly aluminum chloride is added, finally plus
High molecular polymer flocculant makes to precipitate particle growth precipitating by crosslinked action；The sludge cylinder in comprehensive wastewater reaction treatment pond
In sediment filtered by filter after together with the precipitating supernatant water in comprehensive wastewater reaction treatment pond be discharged into aluminium chloride again
Secondary response pond；
C: through step B treated gained waste water flow into pH value adjustment pond carry out PH adjusting；
The step of D: the waste water after step C adjusting is further carried out biochemical treatment, biochemical treatment include:
1) waste water first after step C adjusting flows into air-flotation process pond and carries out air-flotation process；
2) waste water through air-flotation process flows into anaerobism collecting-tank and carries out anaerobic bio-treated；
3) waste water after anaerobic bio-treated flows into MBR film process pond and carries out MBR film process；
4) waste water through MBR film process flows into ion-exchange treatment pond and carries out ion-exchange treatment, through ion-exchange treatment
Waste water be water up to standard, flow into water up to standard discharge pond in case reuse or outlet.
After adopting the above structure, the invention has the advantages that compared with the prior art: at electroplating wastewater of the invention
Reason medicament and processing method can handle copper, nickel, zinc, lead, tin, chromium, mercury, magnesium, iron, cadmium in electroplating wastewater, the metal ions such as silver
And cyanide, moreover it is possible in comprehensive wastewater in the very high situation of content of beary metal, also can effectively handle, while can also be in waste water
A part of COD is handled in treatment process, the technique for especially having biochemical treatment after carrying out heavy metal processing using this medicament, is located
The heavy metal ion in water is managed in first discharge standard, handles the low survival rate to biochemical treatment biology mattress of heavy metal in water
It is very high, COD high treating effect.
Detailed description of the invention
Fig. 1 is electroplating waste processing process flow chart of the invention.
Specific embodiment
As described below is only presently preferred embodiments of the present invention, is not intended to limit the scope of the present invention, ties below
Closing drawings and examples, the present invention is further described.
Embodiment, as shown in Figure 1: a kind of electroplating wastewater processing medicament, including following components and weight percentage of each component
Be calculated as: heavy metal chelant 17%, vulcanized sodium 40%, polyethyleneimine 13%, poly sulfide are 30%.
A kind of electroplating effluent treatment method, this approach includes the following steps,
A:
1) workshop discharge cyanide containing wastewater flow into cyanide containing wastewater collecting-tank after separately flow into level-one broken cyanide pond and
Second level broken cyanide pond carries out broken cyanide reaction, by cyanogen root exhaustive oxidation at carbon dioxide and nitrogen, will first contain cyanide before broken cyanide reaction
It is alkaline condition that waste water, which adjusts PH, then carries out oxidation broken cyanide with chlorine system oxidant, and wherein level-one broken cyanide reacts: PH=11, ORP=
350mv, second level broken cyanide pH=8.5, ORP=550mmv, broken cyanide flow into comprehensive wastewater collecting-tank after the reaction was completed and carry out in next step
Processing；Its chemical equation is as follows: CN-+CLO-+H2O=CNCL-+2OH-
CNCL-+2OH-=CNO-+CL-+H2O
2CNO-+3CLO-+2H+=2CO2↑+N2↑+3CL-+H2O
2) workshop discharge containing hexavalent chromium wastewater flow into collecting-tank containing hexavalent chromium wastewater after inflow redox reaction pond into
Row redox reaction adjusts pH value to 2.5-3, ORP=250mv with dilute sulfuric acid first containing hexavalent chromium wastewater, then with restoring by force
Hexavalent chrome reduction is trivalent chromium by agent, is flowed into comprehensive wastewater collecting-tank after the completion of redox reaction and is further processed；Its
Chemical equation is as follows: Cr2O7 2-+3SO3 2-+8H+=2Cr3++3SO4 2-+4H2O
3) the cupric nickel waste water of workshop discharge flows into nickel precipitation tank in term after flowing into cupric nickel waste water collecting-tank, reacts dosing
Process are as follows: adjust pH value to 10.5 with sodium hydroxide first, be then powered on waste electroplating treatment agent, followed by adding polyaluminium
Lead finally increases Molecularly Imprinted Polymer flocculant, by crosslinked action, makes to precipitate particle growth precipitating；The dirt of nickel precipitation tank in term
Sediment in mud cylinder is discharged into comprehensive wastewater collection after filtering by filter together with the precipitating supernatant water in nickel precipitation tank in term
Pond；
B: the comprehensive wastewater in comprehensive wastewater collecting-tank flows into comprehensive wastewater reaction treatment pond, reacts dosing process are as follows: first
PH value first is adjusted to 10.5 with sodium hydroxide, is then powered on waste electroplating treatment agent and is finally increased followed by poly aluminum chloride is added
Molecularly Imprinted Polymer flocculant makes to precipitate particle growth precipitating by crosslinked action；In the sludge cylinder in comprehensive wastewater reaction treatment pond
Sediment filtered by filter after together with the precipitating supernatant water in comprehensive wastewater reaction treatment pond be discharged into aluminium chloride again
Reaction tank carries out flocculation sedimentation；
C: through step B, treated that gained waste water flows into pH value adjustment pond carries out PH adjusting, adjusts pH value to 6.5-9.；
The step of D: the waste water after step C adjusting is further carried out biochemical treatment, biochemical treatment include:
1) waste water first after step C adjusting flows into air-flotation process pond and carries out air-flotation process；Air-flotation process method is with micro-
Minute bubbles adhere to the impurity particle in waste water as carrier, so that its apparent density is less than water, then particle is carried under one's arms by bubble and shifted to
The water surface is separated from water removal；
2) waste water through air-flotation process flows into anaerobism collecting-tank and carries out anaerobic bio-treated；Anaerobic biotreatment method is also known as
" anaerobic digestion " is to make the method for purification of waste water, mechanism is with the organic pollutant in degrading waste water using anaerobe
The organic matter in waste water is decomposed under the action of anaerobic bacteria, finally generates the gases such as methane and carbon dioxide；
3) waste water after anaerobic bio-treated flows into MBR film process pond and carries out MBR film process；MBR membrane treatment process is
A kind of waste water treatment process technology that activated sludge process and membrane separation technique are combined and formed, mature application at present,
Details are not described herein again for its method detailed；
4) waste water through MBR film process flows into ion-exchange treatment pond and carries out ion-exchange treatment, ion-exchange treatment method
It is that ion in the ion and waste water on spent ion exchange resin is filtered mirror exchange, to remove harmful ion in waste water
Process, for removing the heavy metal ion in waste water, the waste water through ion-exchange treatment is water up to standard, flows into water row up to standard
Pond is put in case reuse or outlet.
Claims (4)
1. a kind of electroplating wastewater processing medicament, it is characterised in that: be calculated as including following components and weight percentage of each component: a huge sum of money
Category chelating agent is 16-20%, vulcanized sodium 35-45%, polyethyleneimine 8-15%, and poly sulfide is 20-40%.
2. a kind of electroplating wastewater processing medicament according to claim 1, it is characterised in that: including following components and each component
Weight percent is calculated as: heavy metal chelant 17-19%, vulcanized sodium 37-43%, polyethyleneimine 10-14%, poly
Sulfide is 25-35%.
3. a kind of electroplating wastewater processing medicament according to claim 1, it is characterised in that: including following components and each component
Weight percent is calculated as: heavy metal chelant 18-19%, vulcanized sodium 38-42%, polyethyleneimine 10-12%, poly
Sulfide is 28-32%.
4. a kind of electroplating wastewater processing medicament according to claim 1, it is characterised in that: including following components and each component
Weight percent is calculated as: heavy metal chelant 17%, vulcanized sodium 40%, polyethyleneimine 13%, and poly sulfide is
30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610880242.3A CN106477807B (en) | 2016-10-09 | 2016-10-09 | Electroplating wastewater processing medicament and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610880242.3A CN106477807B (en) | 2016-10-09 | 2016-10-09 | Electroplating wastewater processing medicament and processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106477807A CN106477807A (en) | 2017-03-08 |
| CN106477807B true CN106477807B (en) | 2019-11-05 |
Family
ID=58269204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610880242.3A Active CN106477807B (en) | 2016-10-09 | 2016-10-09 | Electroplating wastewater processing medicament and processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106477807B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055965B (en) * | 2017-05-10 | 2021-02-26 | 深圳市凯宏膜环保科技有限公司 | Integrated MBR membrane integrated system equipment for PCB wastewater treatment |
| CN107381932B (en) * | 2017-06-14 | 2020-09-11 | 广东益诺欧环保股份有限公司 | Chromium-containing wastewater treatment method, treatment system and application |
| CN111470726A (en) * | 2020-04-21 | 2020-07-31 | 重庆中会表面处理有限公司 | Treatment method of chromium plating waste liquid |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631940A (en) * | 2004-11-12 | 2005-06-29 | 清华大学 | Macromolecular heavy metal chelating agent for stabilization of dangerous waste materials and method for preparing same |
| CN101234828A (en) * | 2008-02-19 | 2008-08-06 | 天津大学 | Integrated electroplating treatment method for waste water |
| CN202265470U (en) * | 2011-10-28 | 2012-06-06 | 北京建筑材料科学研究总院有限公司 | Device for treating waste water containing different types or different forms of heavy metals |
| CN102531296A (en) * | 2012-02-14 | 2012-07-04 | 深圳市银台环保工程技术有限公司 | Comprehensive electroplating wastewater treatment method |
| CN103965471A (en) * | 2014-05-07 | 2014-08-06 | 四川大学 | Novel synthetic heavy metal chelating agent |
| CN104876369A (en) * | 2015-06-09 | 2015-09-02 | 长春黄金研究院 | Comprehensive treatment process of acid wastewater of nonferrous metal mine |
| CN105506292A (en) * | 2016-01-28 | 2016-04-20 | 肇庆市新荣昌工业环保有限公司 | Heavy metal sludge innocent treatment and resource utilization method |
-
2016
- 2016-10-09 CN CN201610880242.3A patent/CN106477807B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631940A (en) * | 2004-11-12 | 2005-06-29 | 清华大学 | Macromolecular heavy metal chelating agent for stabilization of dangerous waste materials and method for preparing same |
| CN101234828A (en) * | 2008-02-19 | 2008-08-06 | 天津大学 | Integrated electroplating treatment method for waste water |
| CN202265470U (en) * | 2011-10-28 | 2012-06-06 | 北京建筑材料科学研究总院有限公司 | Device for treating waste water containing different types or different forms of heavy metals |
| CN102531296A (en) * | 2012-02-14 | 2012-07-04 | 深圳市银台环保工程技术有限公司 | Comprehensive electroplating wastewater treatment method |
| CN103965471A (en) * | 2014-05-07 | 2014-08-06 | 四川大学 | Novel synthetic heavy metal chelating agent |
| CN104876369A (en) * | 2015-06-09 | 2015-09-02 | 长春黄金研究院 | Comprehensive treatment process of acid wastewater of nonferrous metal mine |
| CN105506292A (en) * | 2016-01-28 | 2016-04-20 | 肇庆市新荣昌工业环保有限公司 | Heavy metal sludge innocent treatment and resource utilization method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106477807A (en) | 2017-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102010107B (en) | Treatment and cyclic utilization device and method of tannery wastewater | |
| CN101830600B (en) | Method for treating comprehensive electroplating wastewater | |
| CN104045182B (en) | A kind of processing method of metal plating waste water | |
| US20090127194A1 (en) | Electrodialysis reversal and electrochemical wastewater treatment method of compound containing nitrogen | |
| CN105084603A (en) | Treatment method and system of nickel-containing wastewater conforming to Water Pollutant Table III Discharge Standard | |
| CN105948336B (en) | A kind for the treatment of process of electroplating wastewater containing cyanogens and chrome | |
| CN108218129B (en) | Treatment method of chemical nickel plating wastewater | |
| CN110510768B (en) | Combined treatment method of chemical nickel plating wastewater | |
| CN102351351B (en) | Process for treating chemical nickel-plating discarded liquid | |
| CN106477807B (en) | Electroplating wastewater processing medicament and processing method | |
| CN101565255B (en) | Treatment and reuse technology for aluminum surface treatment wastewater | |
| CN109516629A (en) | Electroplating wastewater zero treatment process | |
| CN105565553A (en) | Zero-emission purifying and recycling system of cyanide-containing heavy metal wastewater | |
| CN110498542B (en) | Electroplating wastewater treatment process and device | |
| CN105800821A (en) | Up-to-standard treatment method and device for zinc-nickel alloy waste water | |
| CN103951017A (en) | Method for treating cyanogen-containing copper-containing electroplating wastewater by electrolysis and recycling copper | |
| CN104787933B (en) | Treatment method for gold-smelting cyanide-containing wastewater | |
| CN213266189U (en) | Multi-metal electroplating wastewater treatment device | |
| CN102649611A (en) | Treatment device for electroplating wastewater and application thereof | |
| CN104291493B (en) | Electroplating effluent treatment method | |
| CN111995102A (en) | Treatment method of electroplating wastewater containing complex nickel | |
| CN201915009U (en) | Tannery wastewater treatment recycling device based on catalytic electrolysis and biochemical technique | |
| CN108483715A (en) | A kind of processing method of Electroplating Wastewater, nickel | |
| CN113023954A (en) | Low-emission treatment process for nickel-containing wastewater | |
| CN210030257U (en) | Stainless steel electrolytic polishing effluent treatment plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |