CN105330080A - Comprehensive treatment method of nitric acid type tin stripping waste solution and corresponding treatment device - Google Patents
Comprehensive treatment method of nitric acid type tin stripping waste solution and corresponding treatment device Download PDFInfo
- Publication number
- CN105330080A CN105330080A CN201510846008.4A CN201510846008A CN105330080A CN 105330080 A CN105330080 A CN 105330080A CN 201510846008 A CN201510846008 A CN 201510846008A CN 105330080 A CN105330080 A CN 105330080A
- Authority
- CN
- China
- Prior art keywords
- nitric acid
- reactor
- entrance
- tin
- outlet
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention provides a comprehensive treatment method of a nitric acid type tin stripping waste solution. The method can recycle more than 90% of nitric acid, reduce pollution, save the cost of required caustic soda liquid for neutralization and achieve resource reclamation of the nitric acid. The method comprises the following steps: a, adding an appropriate amount of surfactant and polyacrylamide into the tin stripping waste solution, precipitating, filtering and separating tin; b, enabling the tin stripping waste solution subjected to tin precipitation to pass through a diffusion dialysis membrane to separate the nitric acid; c, adding the liquid caustic soda into a copper-containing waste solution after passing the diffusion dialysis membrane to regulate pH, then adding a sodium sulfide solution, precipitating, filtering and separating copper; d, adjusting a pH value of filtrate subjected to copper precipitation and then carrying out multi-effect evaporation concentration; and e, adjusting a pH value of evaporated, concentrated and distilled water, successively adsorbing ammoniacal nitrogen and nitrate nitrogen by anion resin and cationic resin and enabling the total nitrogen in produced water is discharged up to the standard.
Description
Technical field
The present invention relates to the technical field of liquid waste disposal, be specially a kind of integrated conduct method of nitric acid spent solder stripper, present invention also offers the device of the comprehensive treating process of nitric acid spent solder stripper.
Background technology
PCB manufacturing enterprise multiselect be nitric acid or nitric acid-alkylsulphonic acid type tin stripper, its roughly component be that (organic acid and mineral acid are as naphthene sulfonic acid for acids, phenylformic acid, nitrilotriacetic, nitric acid etc.), copper inhibitor class (comprises nitrogen-containing heterocycle compound, hexamethylenetetramine, 3-triazole compounds etc.), it is surfactant-based that (anion surfactant class is as dodecylbenzene sulfonate, dodecane sulfonate etc.), promotor class (comprises various oxygenant, pro-oxidant, as superoxide etc.), oxynitride inhibitor class (as various ammonium salt and urea), heavy metal complexing agent is (as ethylenediamine tetraacetic acid (EDTA), halogen ion etc.).After moving back process of tin, the composition of tin stripping liquid is mainly: Theil indices reaches more than 100g/L, and copper, iron level reach 20g/L ~ more than 30g/L, nitric acid residual about 20% ~ 30%.Simultaneously the organic substance residues such as heterogeneous ring compound, poly-ring aromatic compounds is got off, and cause moving back tin waste liquid and be difficult to process, processing cost is quite high, and particularly ammonia-state nitrogen and nitrate nitrogen content are very high, and intractability is large especially.But copper and tin, a large amount of free nitric acid all have recovery value in waste liquid, if find rational technique to process waste liquid, heavy metal copper in Recycling of waste liquid and tin and free nitric acid, not only greatly can reduce processing cost, realize the recovery of resource, the optimization process to waste water can also be completed, until total nitrogen qualified discharge.
At present, neutralisation, chemical precipitation method, electrolytic process etc. are mainly contained to the treatment process of moving back tin waste liquid.Waste water total nitrogen after any single disposal methods cannot reach national grade one discharge standard, both can cause environmental pollution, and causes the waste of resource.And for moving back tin liquid waste disposal in prior art, only reclaim for copper tin, and how the Determination of Total Nitrogen in Waste Water after reclaiming for nitric acid and reclaiming processes, there is no a kind of effective integrated approach at present, cause resource utilization low, simultaneously also to cause certain environmental pollution.Summary of the invention
For the problems referred to above, the invention provides a kind of integrated conduct method of nitric acid spent solder stripper, it can realize the recovery of the nitric acid of more than 90%, both decreases pollution, has saved the cost of the required liquid caustic soda of neutralization, has achieved again the resource recycling of nitric acid; And effective process of total nitrogen can be realized, after process, total nitrogen reaches national grade one discharge standard, is a kind of environmental friendliness treatment process, has considerable economic benefit and environmental benefit.
An integrated conduct method for nitric acid spent solder stripper, is characterized in that, the method comprises the following steps:
A adds appropriate tensio-active agent and polyacrylamide to moving back in tin waste liquid, sedimentation and filtration Separation of Tin;
B will move back tin waste liquid by diffusion dialysis film after heavy tin, isolates nitric acid;
C carries out pH regulator to by adding liquid caustic soda in the contained waste liquid after diffusion dialysis film, then adds sodium sulfide solution, sedimentation and filtration separating copper;
D carries out multiple-effect evaporation after filtrate after heavy copper is regulated pH value and concentrates;
E sequentially passes through resin anion(R.A) after evaporation concentration being distillated water adjustment pH value and resin cation (R.C.) adsorbs ammonia-state nitrogen and nitric nitrogen, makes water outlet total nitrogen qualified discharge.
It is further characterized in that:
The rinse water of step e cationic resin and resin anion(R.A), reuse water converge to evaporation concentration and distillate water storage tank, enter steps d and process after mixing homogeneous;
Move back described in step a containing the free nitric acid that massfraction is 20% ~ 30% in tin waste liquid, described tensio-active agent is sodium laurylsulfonate, and the concentration of described polyacrylamide is 0.1%;
Described diffusion dialysis film in step b is negatively charged ion diffusion dialysis film, described in move back tin waste liquid and water simultaneously by diffusion dialysis film, described in move back tin waste liquid and water volume ratio be about 1:1, flow velocity is 10 ~ 12L/min;
Carry out PH adjustment by sodium hydroxide solution to the described contained waste liquid after mistake film in step c, regulate PH to 6.0, the amount of described sodium sulfide solution is controlled by redox potential ORP, and ORP controls as-300mv;
Filtrate after heavy copper being regulated by dilute sulphuric acid in steps d makes described filtrate pH value be adjusted to 6.0, and the multiple-effect evaporation in steps d is specially triple effect evaporation;
In step e, pH value is adjusted to 4.0 ~ 5.0 by adding dilute sulphuric acid by vaporized distillate water outlet, described resin anion(R.A) in step e is macroporous acrylic system weak anion resin D315, and the described resin cation (R.C.) in step e is large porous strong acid cation resin HD-8;
In the water outlet of step e cationic resin, ammonia nitrogen concentration controls is 5 ~ 15mg/L, and it is 1 ~ 5mg/L that nitrate controls.
The device of the comprehensive treating process of nitric acid spent solder stripper, it is characterized in that: it comprises the first reactor, second reactor, described first reactor is heavy tin reactor, described second reactor is heavy copper reactor, move back the entrance that tin waste liquid reservoir is communicated with described first reactor, tensio-active agent, polyacrylamide passes into the reinforced entrance of described first reactor respectively, the outlet at bottom of described first reactor is circumscribed with the entrance of the first pressure filter, the solid outlet of described first pressure filter discharges tin mud, the liquid exit of described first pressure filter is connected to the entrance of diffusion dialysis film, the entrance of described diffusion dialysis film is communicated with water source simultaneously, the acid solution of described diffusion dialysis film exports external recovery nitric acid storage tank, the waste liquid outlet of described diffusion dialysis film is external to the entrance of described second reactor, liquid caustic soda, sodium sulphite is respectively by the reinforced entrance of described second reactor, the outlet at bottom of described second reactor is circumscribed with the entrance of the second pressure filter, the solid outlet of described second pressure filter discharges copper sludge, the liquid exit of described second pressure filter is connected to the entrance of the second liquid waste tank, first dilute sulphuric acid header tank is communicated to the charging opening of described second liquid waste tank, the outlet of described second liquid waste tank is to the entrance of multi-effect evaporation system, the solid outlet of described multi-effect evaporation system discharges carnallite solid, the liquid exit of described multi-effect evaporation system is connected to the entrance distillating water storage tank, the charging opening of water storage tank is distillated described in second dilute sulphuric acid header tank is communicated to, the described outlet distillating water storage tank connects resin anion(R.A) in turn, resin cation (R.C.), the discharge water after processing is discharged in the outlet of described resin cation (R.C.).
It is further characterized in that: described in move back between the outlet of tin liquid waste tank and the entrance of described first reactor pipeline on be provided with the first fresh feed pump, tensio-active agent header tank, polyacrylamide header tank are arranged in the top of described first reactor respectively, and the lower exit port of described tensio-active agent header tank, polyacrylamide header tank connects the independently reinforced entrance of described first reactor respectively;
Pipeline between the outlet at bottom of described first reactor and the entrance of described first pressure filter is provided with the first filter pressing pump;
The liquid exit of described first pressure filter is connected to the entrance of the first liquid waste tank, and the outlet of described first liquid waste tank is communicated to the entrance of waste liquid high-level storage groove by the first transferpump, the outlet of described waste liquid high-level storage groove is connected to the entrance of diffusion dialysis film;
Elevated tank with caustic soda liquid, sodium sulphite header tank are arranged in the top of described second reactor respectively, and the lower exit port of described elevated tank with caustic soda liquid, sodium sulphite header tank connects the independently reinforced entrance of described second reactor respectively;
Pipeline between the outlet at bottom of described second reactor and the entrance of described second pressure filter is provided with the second filter pressing pump;
Pipeline between the outlet of described second liquid waste tank and the entrance of described multi-effect evaporation system is provided with the 3rd transferpump;
The described outlet distillating water storage tank is connected to the entrance of described resin anion(R.A) by the second transferpump, the entrance of resin cation (R.C.) described in the outlet of described resin anion(R.A);
Described diffusion dialysis film is negatively charged ion diffusion dialysis film;
Described multi-effect evaporation system is specially triple effect evaporation system;
Described resin anion(R.A) is macroporous acrylic system weak anion resin D315, and described resin cation (R.C.) is large porous strong acid cation resin HD-8.
After adopting the present invention, this treatment process is the comprehensive treating process for nitric acid spent solder stripper, and the resource utilization that can realize more than 90% free nitric acid is recycled, and saves the cost of the required liquid caustic soda of neutralization; Reclaim copper, tin resource to greatest extent, decrease the pollution of heavy metal to environment; Multiple-effect evaporation concentrates and significantly reduces COD in waste water and total nitrogen, salinity, for the further process of waste water provides guarantee; After the resin system degree of depth adsorbs ammonia-state nitrogen and nitric nitrogen process, finally realize effective control of total nitrogen, Determination of Total Nitrogen in Waste Water reaches national grade one discharge standard, and the method has technique simply, and processing cost is low, and environmental pollution is little, high treating effect.
Accompanying drawing explanation
Fig. 1 is the process flow sheet of the integrated conduct method of a kind of nitric acid spent solder stripper of the present invention;
Fig. 2 is first part's structure diagram of the device of the comprehensive treating process of nitric acid spent solder stripper of the present invention;
Fig. 3 is the second section structure diagram (map interlinking 2) of the device of the comprehensive treating process of nitric acid spent solder stripper of the present invention;
Fig. 4 is the Part III structure diagram (map interlinking 3) of the device of the comprehensive treating process of nitric acid spent solder stripper of the present invention;
Reference name in figure corresponding to each sequence number is as follows:
First reactor 1, second reactor 2, move back tin waste liquid reservoir 3, resin cation (R.C.) 4, first fresh feed pump 5, tensio-active agent header tank 6, polyacrylamide header tank 7, first pressure filter 8, first filter pressing pump 9, first liquid waste tank 10, first transferpump 11, waste liquid high-level storage groove 12, diffusion dialysis film 13, the high-order storage tank 14 of tap water, reclaim nitric acid storage tank 15, elevated tank with caustic soda liquid 16, sodium sulphite header tank 17, second pressure filter 18, second filter pressing pump 19, second liquid waste tank 20, first dilute sulphuric acid header tank 21, multi-effect evaporation system 22, 3rd transferpump 23, distillate water storage tank 24, second dilute sulphuric acid header tank 25, second transferpump 26, resin anion(R.A) 27.
Embodiment
An integrated conduct method for nitric acid spent solder stripper, is shown in Fig. 1, and the method comprises the following steps:
A adds appropriate tensio-active agent and polyacrylamide to moving back in tin waste liquid, sedimentation and filtration Separation of Tin;
B will move back tin waste liquid by diffusion dialysis film after heavy tin, isolates nitric acid;
C carries out pH regulator to by adding liquid caustic soda in the contained waste liquid after diffusion dialysis film, then adds sodium sulfide solution, sedimentation and filtration separating copper;
D carries out multiple-effect evaporation after filtrate after heavy copper is regulated pH value and concentrates;
E sequentially passes through resin anion(R.A) after evaporation concentration being distillated water adjustment pH value and resin cation (R.C.) adsorbs ammonia-state nitrogen and nitric nitrogen, makes water outlet total nitrogen qualified discharge.
If the water that step e discharges is not up to standard, again carry out the multiple-effect evaporation in steps d, repeating step e, until water emission compliance;
Moving back containing the free nitric acid that massfraction is 20% ~ 30% in tin waste liquid in step a, tensio-active agent is sodium laurylsulfonate, and the concentration of polyacrylamide is 0.1%;
Diffusion dialysis film in step b is negatively charged ion diffusion dialysis film, and move back tin waste liquid and water simultaneously by diffusion dialysis film, the volume ratio of moving back tin waste liquid and water is about 1:1, and flow velocity is 10 ~ 12L/min;
Carry out PH adjustment by sodium hydroxide solution to the contained waste liquid after mistake film in step c, regulate PH to 6.0, the amount of sodium sulfide solution is controlled by redox potential ORP, and ORP controls as-300mv;
Filtrate after heavy copper being regulated by dilute sulphuric acid in steps d makes filtrate pH value be adjusted to 6.0, and the multiple-effect evaporation in steps d is specially triple effect evaporation;
In step e, pH value is adjusted to 4.0 ~ 5.0 by adding dilute sulphuric acid by vaporized distillate water outlet, and the resin anion(R.A) in step e is macroporous acrylic system weak anion resin D315, and the resin cation (R.C.) in step e is large porous strong acid cation resin HD-8;
In the water outlet of step e cationic resin, ammonia nitrogen concentration controls is 5 ~ 15mg/L, and it is 1 ~ 5mg/L that nitrate controls, qualified discharge.
The device of the comprehensive treating process of nitric acid spent solder stripper, see Fig. 2 ~ Fig. 4: it comprises the first reactor 1, second reactor 2, first reactor 1 is heavy tin reactor, second reactor 2 is heavy copper reactor, move back the entrance that tin waste liquid reservoir 3 is communicated with the first reactor 1, move back on the pipeline between the outlet of tin liquid waste tank 3 and the entrance of the first reactor 1 and be provided with the first fresh feed pump 5, tensio-active agent header tank 6, polyacrylamide header tank 7 is arranged in the top of the first reactor 1 respectively, tensio-active agent header tank 6, the lower exit port of polyacrylamide header tank 7 connects the independently reinforced entrance of the first reactor 1 respectively, the outlet at bottom of the first reactor 1 is circumscribed with the entrance of the first pressure filter 8, and the pipeline between the outlet at bottom of the first reactor 1 and the entrance of the first pressure filter 8 is provided with the first filter pressing pump 9, the solid outlet of the first pressure filter 8 discharges tin mud, the liquid exit of the first pressure filter 8 is connected to the entrance of the first liquid waste tank 10, the outlet of the first liquid waste tank 10 is communicated to the entrance of waste liquid high-level storage groove 12 by the first transferpump 11, the outlet of waste liquid high-level storage groove 12 is connected to the entrance of diffusion dialysis film 13, the entrance of diffusion dialysis film 13 is communicated with the high-order storage tank 14 of tap water simultaneously, the acid solution of diffusion dialysis film 13 exports external recovery nitric acid storage tank 15, the waste liquid outlet of diffusion dialysis film 13 is external to the entrance of the second reactor 2, elevated tank with caustic soda liquid 16, sodium sulphite header tank 17 are arranged in the top of the second reactor 2 respectively, and the lower exit port of elevated tank with caustic soda liquid 16, sodium sulphite header tank 17 connects the independently reinforced entrance of the second reactor 2 respectively,
The outlet at bottom of the second reactor 2 is circumscribed with the entrance of the second pressure filter 18, and the pipeline between the outlet at bottom of the second reactor 2 and the entrance of the second pressure filter 18 is provided with the second filter pressing pump 19;
The solid outlet of the second pressure filter 18 discharges copper sludge, and the liquid exit of the second pressure filter 18 is connected to the entrance of the second liquid waste tank 20,
First dilute sulphuric acid header tank 21 is communicated to the charging opening of the second liquid waste tank 20, the outlet of the second liquid waste tank 20, to the entrance of multi-effect evaporation system 22, the pipeline between the outlet of the second liquid waste tank 20 and the entrance of multi-effect evaporation system 22 is provided with the 3rd transferpump 23; The solid outlet of multi-effect evaporation system 22 discharges carnallite solid, the liquid exit of multi-effect evaporation system 22 is connected to the entrance distillating water storage tank 24, second dilute sulphuric acid header tank 25 is communicated to the charging opening distillating water storage tank 24, the outlet distillating water storage tank 24 is connected to the entrance of resin anion(R.A) 27 by the second transferpump 26, the entrance of the outlet resin cation (R.C.) 4 of resin anion(R.A) 27, the discharge water after processing is discharged in the outlet of resin cation (R.C.) 4.
Its principle of work is as follows: nitric acid spent solder stripper carries out heavy tin reaction in the first reactor 1, tin mud is obtained by the first pressure filter 8, liquid obtains nitric acid by mixed water after diffusion dialysis film 13, raffinate carries out heavy copper reaction in the second reactor 2 afterwards, copper sludge is obtained by the second pressure filter 18, afterwards the liquid after adjustment pH value is isolated carnallite through multi-effect evaporation system 22, distilled water, wherein carnallite is entrusted outer process, resin anion(R.A) 27 and resin cation (R.C.) 4 is sequentially passed through after the distilled water obtained regulates pH value again, thus absorption ammonia-state nitrogen and nitric nitrogen, make water outlet total nitrogen qualified discharge.
Above specific embodiments of the invention have been described in detail, but content being only the preferred embodiment of the invention, the practical range for limiting the invention can not being considered to.All equalizations done according to the invention application range change and improve, and all should still belong within patent covering scope of the present invention.
Claims (10)
1. an integrated conduct method for nitric acid spent solder stripper, is characterized in that, the method comprises the following steps:
A adds appropriate tensio-active agent and polyacrylamide to moving back in tin waste liquid, sedimentation and filtration Separation of Tin;
B will move back tin waste liquid by diffusion dialysis film after heavy tin, isolates nitric acid;
C carries out pH regulator to by adding liquid caustic soda in the contained waste liquid after diffusion dialysis film, then adds sodium sulfide solution, sedimentation and filtration separating copper;
D carries out multiple-effect evaporation after filtrate after heavy copper is regulated pH value and concentrates;
E sequentially passes through resin anion(R.A) after evaporation concentration being distillated water adjustment pH value and resin cation (R.C.) adsorbs ammonia-state nitrogen and nitric nitrogen, makes water outlet total nitrogen qualified discharge.
2. the integrated conduct method of a kind of nitric acid spent solder stripper as claimed in claim 1, it is characterized in that: the rinse water of step e cationic resin and resin anion(R.A), reuse water converge to evaporation concentration and distillate water storage tank, enter steps d and process after mixing homogeneous.
3. the integrated conduct method of a kind of nitric acid spent solder stripper as claimed in claim 1 or 2, it is characterized in that: move back described in step a in tin waste liquid containing the free nitric acid that massfraction is 20% ~ 30%, described tensio-active agent is sodium laurylsulfonate, and the concentration of described polyacrylamide is 0.1%.
4. the integrated conduct method of a kind of nitric acid spent solder stripper as claimed in claim 1 or 2, it is characterized in that: the described diffusion dialysis film in step b is negatively charged ion diffusion dialysis film, described tin waste liquid and the water of moving back is simultaneously by diffusion dialysis film, described volume ratio of moving back tin waste liquid and water is about 1:1, and flow velocity is 10 ~ 12L/min.
5. the integrated conduct method of a kind of nitric acid spent solder stripper as claimed in claim 1 or 2, it is characterized in that: in step c, by sodium hydroxide solution, PH adjustment is carried out to the described contained waste liquid after mistake film, regulate PH to 6.0, the amount of described sodium sulfide solution is controlled by redox potential ORP, and ORP controls as-300mv.
6. the integrated conduct method of a kind of nitric acid spent solder stripper as claimed in claim 1 or 2, is characterized in that: filtrate after heavy copper regulated by dilute sulphuric acid in steps d and make described filtrate pH value be adjusted to 6.0, the multiple-effect evaporation in steps d is specially triple effect evaporation.
7. the integrated conduct method of a kind of nitric acid spent solder stripper as claimed in claim 1 or 2, is characterized in that: in step e, pH value is adjusted to 4.0 ~ 5.0 by adding dilute sulphuric acid by vaporized distillate water outlet.
8. the integrated conduct method of a kind of nitric acid spent solder stripper as claimed in claim 1 or 2, it is characterized in that: the described resin anion(R.A) in step e is macroporous acrylic system weak anion resin D315, the described resin cation (R.C.) in step e is large porous strong acid cation resin HD-8.
9. the integrated conduct method of a kind of nitric acid spent solder stripper as claimed in claim 1 or 2, is characterized in that: in the water outlet of step e cationic resin, ammonia nitrogen concentration controls is 5 ~ 15mg/L, and it is 1 ~ 5mg/L that nitrate controls.
10. the device of the comprehensive treating process of nitric acid spent solder stripper, it is characterized in that: it comprises the first reactor, second reactor, described first reactor is heavy tin reactor, described second reactor is heavy copper reactor, move back the entrance that tin waste liquid reservoir is communicated with described first reactor, tensio-active agent, polyacrylamide passes into the reinforced entrance of described first reactor respectively, the outlet at bottom of described first reactor is circumscribed with the entrance of the first pressure filter, the solid outlet of described first pressure filter discharges tin mud, the liquid exit of described first pressure filter is connected to the entrance of diffusion dialysis film, the entrance of described diffusion dialysis film is communicated with water source simultaneously, the acid solution of described diffusion dialysis film exports external recovery nitric acid storage tank, the waste liquid outlet of described diffusion dialysis film is external to the entrance of described second reactor, liquid caustic soda, sodium sulphite is respectively by the reinforced entrance of described second reactor, the outlet at bottom of described second reactor is circumscribed with the entrance of the second pressure filter, the solid outlet of described second pressure filter discharges copper sludge, the liquid exit of described second pressure filter is connected to the entrance of the second liquid waste tank, first dilute sulphuric acid header tank is communicated to the charging opening of described second liquid waste tank, the outlet of described second liquid waste tank is to the entrance of multi-effect evaporation system, the solid outlet of described multi-effect evaporation system discharges carnallite solid, the liquid exit of described multi-effect evaporation system is connected to the entrance distillating water storage tank, the charging opening of water storage tank is distillated described in second dilute sulphuric acid header tank is communicated to, the described outlet distillating water storage tank connects resin anion(R.A) in turn, resin cation (R.C.), the discharge water after processing is discharged in the outlet of described resin cation (R.C.).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510846008.4A CN105330080B (en) | 2015-11-27 | 2015-11-27 | A kind of integrated conduct method of nitric acid spent solder stripper and corresponding processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510846008.4A CN105330080B (en) | 2015-11-27 | 2015-11-27 | A kind of integrated conduct method of nitric acid spent solder stripper and corresponding processing unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105330080A true CN105330080A (en) | 2016-02-17 |
| CN105330080B CN105330080B (en) | 2018-06-26 |
Family
ID=55280886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510846008.4A Active CN105330080B (en) | 2015-11-27 | 2015-11-27 | A kind of integrated conduct method of nitric acid spent solder stripper and corresponding processing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105330080B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107512806A (en) * | 2017-10-16 | 2017-12-26 | 北京廷润膜技术开发股份有限公司 | Ion exchange resin waste water zero discharge processing method |
| CN108658321A (en) * | 2018-05-18 | 2018-10-16 | 深圳市祺鑫天正环保科技有限公司 | Diffusion dialysis handles the system and method for nitric acid spent solder stripper |
| CN114277249A (en) * | 2021-11-26 | 2022-04-05 | 江西瑞亿电子科技有限公司 | Treatment method for recycling tin, copper and waste gas from PCB tin waste liquid in recycling mode |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007042611A1 (en) * | 2005-10-14 | 2007-04-19 | Kemira Growhow Oyj | A method for precipitating metal oxides from an aqueous waste solution |
| CN204079661U (en) * | 2014-11-03 | 2015-01-07 | 昆山市千灯三废净化有限公司 | A kind of resource recovering system of the chemical nickel plating waste solution containing nitric acid |
| CN104986892A (en) * | 2015-07-02 | 2015-10-21 | 清远市新绿环境技术有限公司 | Tin stripping waste liquid treating method |
| CN205676301U (en) * | 2015-11-27 | 2016-11-09 | 昆山市千灯三废净化有限公司 | A kind of device of the integrated treatment of nitric acid spent solder stripper |
-
2015
- 2015-11-27 CN CN201510846008.4A patent/CN105330080B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007042611A1 (en) * | 2005-10-14 | 2007-04-19 | Kemira Growhow Oyj | A method for precipitating metal oxides from an aqueous waste solution |
| CN204079661U (en) * | 2014-11-03 | 2015-01-07 | 昆山市千灯三废净化有限公司 | A kind of resource recovering system of the chemical nickel plating waste solution containing nitric acid |
| CN104986892A (en) * | 2015-07-02 | 2015-10-21 | 清远市新绿环境技术有限公司 | Tin stripping waste liquid treating method |
| CN205676301U (en) * | 2015-11-27 | 2016-11-09 | 昆山市千灯三废净化有限公司 | A kind of device of the integrated treatment of nitric acid spent solder stripper |
Non-Patent Citations (2)
| Title |
|---|
| 张利、刘兴勇: "FCB退锡废水回收利用研究", 《四川理工学院学报( 自然科学版)》 * |
| 汪大翚等编: "《工业废水中专项污染物处理手册》", 31 May 2000 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107512806A (en) * | 2017-10-16 | 2017-12-26 | 北京廷润膜技术开发股份有限公司 | Ion exchange resin waste water zero discharge processing method |
| CN108658321A (en) * | 2018-05-18 | 2018-10-16 | 深圳市祺鑫天正环保科技有限公司 | Diffusion dialysis handles the system and method for nitric acid spent solder stripper |
| CN114277249A (en) * | 2021-11-26 | 2022-04-05 | 江西瑞亿电子科技有限公司 | Treatment method for recycling tin, copper and waste gas from PCB tin waste liquid in recycling mode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105330080B (en) | 2018-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101269871B (en) | Method for processing chrome wastewater | |
| CN103964612B (en) | A kind of high COD, high salinity, high content of beary metal the deamination processing method of middle Low Concentration Ammonia Containing Wastewater | |
| CN105347542B (en) | One kind reuses technique after utilizing guar gum fracturing outlet liquid water process | |
| CN105130041A (en) | Improved treatment method of acidic waste water containing heavy metals | |
| CN104098206B (en) | The pretreated printing and dyeing waste water advanced treatment recovery method of a kind of employing macroporous resin | |
| CN205676301U (en) | A kind of device of the integrated treatment of nitric acid spent solder stripper | |
| CN104986892A (en) | Tin stripping waste liquid treating method | |
| CN103482783A (en) | Treatment process for plumbic acid waste water generated in production process of lead storage batteries | |
| CN103011347B (en) | Method for carrying out electrolytic treatment on copper-containing electroplating wastewater and recycling copper | |
| CN106882884A (en) | A kind of method of chlorion in recycling waste water | |
| CN103553249A (en) | Method for acid separation and heavy metal recovery in electroplating waste liquor | |
| CN103193338B (en) | Method for simply treating copper-clad aluminum electroplating production wastewater | |
| CN105330080A (en) | Comprehensive treatment method of nitric acid type tin stripping waste solution and corresponding treatment device | |
| CN102115272A (en) | Processing and reusing method and device for waste water of aluminium oxidation washing | |
| CN109264920A (en) | A kind of processing method of beneficiation wastewater zero-emission | |
| CN103936189A (en) | Processing method for recovery processing of high ammonia nitrogen wastewater | |
| CN203715400U (en) | Low-concentration lead-containing wastewater treatment equipment | |
| CN108314242A (en) | High ammonia nitrogen contains the fluorine-containing photovoltaic wastewater processing method of arsenic and system | |
| CN105152262A (en) | Method for selectively removing chlorine ions by using ion imprinted polymer | |
| CN104291498A (en) | Processing method and corresponding processing system for chemical nickel plating waste liquid containing nitric acids | |
| CN103523949A (en) | PCB (Printed Circuit Board) waste water treatment method | |
| CN108609758A (en) | PCB circuit board comprehensive wastewater handles sludge decrement process | |
| CN104556510B (en) | Copper-containing wastewater recovery and processing system and copper-containing wastewater recovery and treatment method | |
| CN207468386U (en) | A kind of zero-discharge treatment system of mixed electroplating wastewater | |
| CN102942274B (en) | Treatment method of saline and alkaline wastewater in copper oxide production process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |