CN205676301U - A kind of device of the integrated treatment of nitric acid spent solder stripper - Google Patents
A kind of device of the integrated treatment of nitric acid spent solder stripper Download PDFInfo
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- CN205676301U CN205676301U CN201520964296.9U CN201520964296U CN205676301U CN 205676301 U CN205676301 U CN 205676301U CN 201520964296 U CN201520964296 U CN 201520964296U CN 205676301 U CN205676301 U CN 205676301U
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- 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
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Abstract
The utility model provides the device of the integrated treatment of a kind of nitric acid spent solder stripper, and it is capable of the recovery of the nitric acid of more than 90%, has both decreased pollution, has saved the cost neutralizing required liquid caustic soda, has achieved again the resource recycling of nitric acid.It is characterized in that: it includes the first reactor, second reactor, described first reactor is heavy tin reactor, described second reactor is heavy copper reactor, the entrance of described first reactor of tin removal waste liquor reservoir connection, surfactant, polyacrylamide each leads into the charging entrance of described first reactor, the outlet at bottom of the first reactor is circumscribed with the entrance of the first filter press, the solid outlet of described first filter press discharges tin mud, the liquid outlet of described first filter press 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 outlet external recovery nitric acid storage tank of described diffusion dialysis film, the waste liquid outlet of described diffusion dialysis film is external to the entrance of described second reactor.
Description
Technical field
The utility model relates to the technical field of liquid waste processing, combining of specially a kind of nitric acid spent solder stripper
The device that conjunction is processed.
Background technology
The many selections of PCB manufacturing enterprise are nitric acid or nitric acid-alkyl sulfonic acid type tin stripper, and its substantially component is
Acids (organic acid and inorganic acid such as naphthalene sulfonic acids, benzoic acid, triacetic acid, nitric acid etc.), copper inhibitor class (bag
Include nitrogen-containing heterocycle compound, hexamethylenetetramine, 3-triazole compounds etc.), surfactant-based (cloudy from
Sub-surface activating agent class such as dodecyl benzene sulfonate, dodecane sulfonate etc.), accelerator class (includes
Various oxidants, pro-oxidant, such as peroxide etc.), nitrogen oxides inhibitor class (such as various ammonium salts and
Urea), heavy metal complexing agent (such as ethylenediamine tetra-acetic acid, halogen ion etc.).After moving back process of tin, tin stripping liquid
Composition be mainly: Theil indices reaches more than 100g/L, copper, iron content reach 20g/L～30g/L with
On, nitric acid residual about 20%～30%.The organic substance residues such as heterocyclic compound, poly-ring aromatic compounds simultaneously
Getting off, causing tin removal waste liquor to be difficult to process, processing cost is at a relatively high, particularly ammoniacal nitrogen and nitrate nitrogen
Content is very high, and intractability is big especially.But copper and tin, substantial amounts of free nitric acid all have recovery in waste liquid
Be worth, if finding rational technique to process waste liquid, the heavy metal copper in Recycling of waste liquid and tin with
And free nitric acid, it is possible not only to be substantially reduced processing cost, it is achieved the recovery of resource, can also complete
Optimization process to waste water, until total nitrogen qualified discharge.
At present, neutralisation, chemical precipitation method, electrolysis etc. are mainly had to the processing method of tin removal waste liquor.
Waste water total nitrogen after any single disposal methods is unable to reach national grade one discharge standard, both can
Cause environmental pollution, and cause the waste of resource.And for tin removal waste liquor process, only pin in prior art
Copper and tin is reclaimed, and how the Determination of Total Nitrogen in Waste Water after reclaiming for nitric acid and reclaim is processed, and does not has at present
There is a kind of effective integrated approach, cause resource utilization low, also result in certain environmental pollution simultaneously.
Content of the invention
For the problems referred to above, the utility model provides the dress of the integrated treatment of a kind of nitric acid spent solder stripper
Putting, it is capable of the recovery of the nitric acid of more than 90%, has both decreased pollution, has saved the required liquid caustic soda of neutralization
Cost, achieve again the resource recycling of nitric acid；And it is capable of effectively processing of total nitrogen, process
Rear total nitrogen reaches national grade one discharge standard, has considerable economic benefit and environmental benefit.
A kind of device of the integrated treatment of nitric acid spent solder stripper, it is characterised in that: it includes the first reaction
Kettle, the second reactor, described first reactor is heavy tin reactor, and described second reactor is anti-for heavy copper
Answer kettle, the entrance of described first reactor of tin removal waste liquor reservoir connection, surfactant, polyacrylamide
Amine each leads into the charging entrance of described first reactor, and the outlet at bottom of described first reactor is circumscribed with
The entrance of the first filter press, the solid outlet of described first filter press discharges tin mud, described first filter press
Liquid outlet be connected to the entrance of diffusion dialysis film, the entrance of described diffusion dialysis film is communicated with water simultaneously
Source, the acid solution outlet external recovery nitric acid storage tank of described diffusion dialysis film, the waste liquid of described diffusion dialysis film
Outlet is external to the entrance of described second reactor, and liquid caustic soda, vulcanized sodium pass through described second reactor respectively
Charging entrance, the outlet at bottom of described second reactor is circumscribed with the entrance of the second filter press, described
The solid outlet of two filter presses discharges copper sludge, and the liquid outlet of described second filter press is connected to the second waste liquid
The entrance of storage tank, the first dilute sulfuric acid head tank is communicated to the charge door of described second liquid waste tank, and described
The outlet of two liquid waste tank is to the entrance of multi-effect evaporation system, and the solid of described multi-effect evaporation system goes out
Mouth discharges carnallite solid, and the liquid outlet of described multi-effect evaporation system is connected to distillate the entrance of water storage tank,
Second dilute sulfuric acid head tank distillates the charge door of water storage tank, the described outlet distillating water storage tank described in being communicated to
It is sequentially connected with resin anion (R.A.), resin cation, the row after the outlet discharge process of described resin cation
Water outlet.
Its outlet being further characterized by described tin removal waste liquor storage tank and the entrance of described first reactor
Between pipeline on be provided with the first feed pump, surfactant head tank, polyacrylamide head tank divide
Not being arranged in the top of described first reactor, described surfactant head tank, polyacrylamide are high-order
The lower exit port of groove connects the independent charging entrance of described first reactor respectively；
Arrange on pipeline between the outlet at bottom of described first reactor and the entrance of described first filter press
There is the first filter pressing pump；
The liquid outlet of described first filter press is connected to the entrance of the first liquid waste tank, described first waste liquid
The outlet of storage tank is communicated to the entrance of waste liquid high-level storage groove, described waste liquid high-level storage groove by the first delivery pump
Outlet be connected to the entrance of diffusion dialysis film；
Elevated tank with caustic soda liquid, vulcanized sodium head tank are respectively arranged in the top of described second reactor, described liquid
Alkali head tank, the lower exit port of vulcanized sodium head tank connect the independent charging of described second reactor respectively
Entrance；
Arrange on pipeline between the outlet at bottom of described second reactor and the entrance of described second filter press
There is the second filter pressing pump；
Arrange on pipeline between the outlet of described second liquid waste tank and the entrance of described multi-effect evaporation system
There is the 3rd delivery pump；
The described outlet distillating water storage tank is connected to the entrance of described resin anion (R.A.) by the second delivery pump,
The entrance of resin cation described in the outlet of described resin anion (R.A.)；
Described diffusion dialysis film is anion 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, described cation tree
Fat is large porous strong acid cation resin HD-8.
The integrated conduct method of a kind of nitric acid spent solder stripper, it is characterised in that the method includes following step
Rapid:
A adds appropriate surfactant and polyacrylamide in tin removal waste liquor, and precipitation filters Separation of Tin；
Tin removal waste liquor after heavy tin is passed through diffusion dialysis film by b, isolates nitric acid；
Contained waste liquid after by diffusion dialysis film for the c adds liquid caustic soda carry out pH regulation, add sulfuration
Sodium solution, precipitation filters and separates copper；
D will carry out multiple-effect evaporation concentration after filtrate regulation pH value after heavy copper；
E sequentially passes through resin anion (R.A.) and resin cation absorption after evaporation and concentration distillates water regulation pH value
Ammoniacal nitrogen and nitrate nitrogen so that water outlet total nitrogen qualified discharge.
It is further characterized by
The rinse water of step e cationic resin and resin anion (R.A.), recycled water converge with being extremely concentrated by evaporation and distillate
Water storage tank, enters the process of step d after mixing homogeneous；
Containing the free nitric acid that mass fraction is 20%～30% in described tin removal waste liquor in step a, described
Surfactant is dodecyl sodium sulfate, and the concentration of described polyacrylamide is 0.1%；
Described diffusion dialysis film in step b is anion diffusion dialysis film, and described tin removal waste liquor is same with water
When pass through diffusion dialysis film, the volume ratio of described tin removal waste liquor and water is about 1:1, flow velocity is 10～
12L/min；
Step c carries out PH regulation by sodium hydroxide solution to the described contained waste liquid after film excessively, regulation
PH to 6.0, the amount of described sodium sulfide solution is controlled by oxidation-reduction potential ORP, and ORP control is
-300mv；
Filtrate after heavy copper is made described filtrate pH value be adjusted to 6.0 by dilute sulfuric acid regulation by step d,
Multiple-effect evaporation in step d is specially triple effect evaporation；
PH value is adjusted to 4.0～5.0, in step e by adding dilute sulfuric acid by vaporized distillate water outlet in step e
Described resin anion (R.A.) be macroporous acrylic system weak anion resin D315, described in step e
Resin cation is large porous strong acid cation resin HD-8；
In the water outlet of step e cationic resin, ammonia nitrogen concentration control is 5～15mg/L, nitrate
Control is 1～5mg/L.
After using structure of the present utility model, it is the integrated treatment for nitric acid spent solder stripper, permissible
Realize that the resource of more than 90% free nitric acid recycles, save the cost neutralizing required liquid caustic soda；Maximum limit
Reclaim copper, tin resource degree, decrease the pollution to environment for the heavy metal；Multiple-effect evaporation concentrates notable fall
COD in low waste water and total nitrogen, salinity, be that the process further of waste water provides guarantee；Resin system
After degree of depth absorption ammoniacal nitrogen and nitrate nitrogen are processed, finally realizing effective control of total nitrogen, Determination of Total Nitrogen in Waste Water reaches
To national grade one discharge standard, and the method has technique simply, and processing cost is low, and environmental pollution is little,
The advantages such as high treating effect.
Brief description
Fig. 1 is the process chart of the integrated conduct method of a kind of nitric acid spent solder stripper of the present utility model；
Fig. 2 is the Part I structure diagram of the device of the integrated treatment of the utility model nitric acid spent solder stripper；
Fig. 3 is that the Part II structure diagram of the device of the integrated treatment of the utility model nitric acid spent solder stripper (connects
Fig. 2)；
Fig. 4 is that the Part III structure diagram of the device of the integrated treatment of the utility model nitric acid spent solder stripper (connects
Fig. 3)；
Fig. 5 is the overall structure simplified schematic diagram that Fig. 2, Fig. 3, Fig. 4 combine formation；
In figure, the reference name corresponding to each sequence number is as follows:
First reactor the 1st, the second reactor the 2nd, tin removal waste liquor reservoir the 3rd, resin cation the 4th, first
Feed pump the 5th, surfactant head tank the 6th, polyacrylamide head tank the 7th, the first filter press the 8th, first
Filter pressing pump the 9th, the first liquid waste tank the 10th, the first delivery pump the 11st, waste liquid high-level storage groove the 12nd, diffusion dialysis film
13rd, the 14th, the high-order storage tank of running water reclaims nitric acid storage tank the 15th, elevated tank with caustic soda liquid the 16th, vulcanized sodium head tank
17th, the second filter press the 18th, the second filter pressing pump the 19th, the second liquid waste tank the 20th, the first dilute sulfuric acid head tank
21st, the 23rd, multi-effect evaporation system the 22nd, the 3rd delivery pump distillates water storage tank the 24th, the second dilute sulfuric acid head tank
25th, the second delivery pump the 26th, resin anion (R.A.) 27.
Detailed description of the invention
The integrated conduct method of a kind of nitric acid spent solder stripper, is shown in Fig. 1, and the method comprises the following steps:
A adds appropriate surfactant and polyacrylamide in tin removal waste liquor, and precipitation filters Separation of Tin；
Tin removal waste liquor after heavy tin is passed through diffusion dialysis film by b, isolates nitric acid；
Contained waste liquid after by diffusion dialysis film for the c adds liquid caustic soda carry out pH regulation, add sulfuration
Sodium solution, precipitation filters and separates copper；
D will carry out multiple-effect evaporation concentration after filtrate regulation pH value after heavy copper；
E sequentially passes through resin anion (R.A.) and resin cation absorption after evaporation and concentration distillates water regulation pH value
Ammoniacal nitrogen and nitrate nitrogen so that water outlet total nitrogen qualified discharge.
The rinse water of step e cationic resin and resin anion (R.A.), recycled water converge with being extremely concentrated by evaporation and distillate
Water storage tank, enters the process of step d after mixing homogeneous；
Containing the free nitric acid that mass fraction is 20%～30%, surface-active in tin removal waste liquor in step a
Agent is dodecyl sodium sulfate, and the concentration of polyacrylamide is 0.1%；
Diffusion dialysis film in step b is anion diffusion dialysis film, and tin removal waste liquor and water are simultaneously by expanding
Dissipating dialyser, tin removal waste liquor is about 1:1 with the volume ratio of water, and flow velocity is 10～12L/min；
Step c carries out PH regulation by sodium hydroxide solution to the contained waste liquid after film excessively, regulates PH
To 6.0, the amount of sodium sulfide solution is controlled by oxidation-reduction potential ORP, and ORP control is-300mv；
Filtrate after heavy copper is made filtrate pH value be adjusted to 6.0 by dilute sulfuric acid regulation by step d, step
Multiple-effect evaporation in d is specially triple effect evaporation；
PH value is adjusted to 4.0～5.0, in step e by adding dilute sulfuric acid by vaporized distillate water outlet in step e
Resin anion (R.A.) be macroporous acrylic system weak anion resin D315, the cation tree in step e
Fat is large porous strong acid cation resin HD-8；
In the water outlet of step e cationic resin, ammonia nitrogen concentration control is 5～15mg/L, nitrate
Control is 1～5mg/L, qualified discharge.
The device of the integrated treatment of a kind of nitric acid spent solder stripper, is shown in Fig. 2～Fig. 5: it includes the first reaction
Kettle the 1st, the second reactor 2, the first reactor 1 is heavy tin reactor, and the second reactor 2 is heavy copper reaction
Kettle, tin removal waste liquor reservoir 3 connects the entrance of the first reactor 1, the outlet of tin removal waste liquor storage tank 3 and
Being provided with the first feed pump 5 on pipeline between the entrance of the first reactor 1, surfactant head tank is the 6th,
Polyacrylamide head tank 7 is respectively arranged in the top of the first reactor 1, and surfactant head tank is the 6th,
The lower exit port of polyacrylamide head tank 7 connects the independent charging entrance of the first reactor 1 respectively；
The outlet at bottom of the first reactor 1 is circumscribed with the entrance of the first filter press 8, the bottom of the first reactor 1
It is provided with the first filter pressing pump 9 on pipeline between outlet and the entrance of the first filter press 8；First filter press 8
Solid outlet discharge tin mud, the liquid outlet of the first filter press 8 is connected to entering of the first liquid waste tank 10
Mouthful, the outlet of the first liquid waste tank 10 is communicated to entering of waste liquid high-level storage groove 12 by the first delivery pump 11
Mouthful, the outlet of waste liquid high-level storage groove 12 is connected to the entrance of diffusion dialysis film 13；Entering of diffusion dialysis film 13
Mouth is communicated with the high-order storage tank 14 of running water simultaneously, the acid solution outlet external recovery nitric acid storage of diffusion dialysis film 13
Groove 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
16th, vulcanized sodium head tank 17 is respectively arranged in the top of the second reactor 2, and the 16th, elevated tank with caustic soda liquid vulcanizes
The lower exit port of sodium head tank 17 connects the independent charging entrance of the second reactor 2 respectively；
The outlet at bottom of the second reactor 2 is circumscribed with the entrance of the second filter press 18, the second reactor 2
It is provided with the second filter pressing pump 19 on pipeline between the entrance of outlet at bottom and the second filter press 18；
The solid outlet of the second filter press 18 discharges copper sludge, and the liquid outlet of the second filter press 18 is connected to
The entrance of the second liquid waste tank 20,
First dilute sulfuric acid head tank 21 is communicated to the charge door of the second liquid waste tank 20, the second liquid waste tank
The outlet of 20 steams to the entrance of multi-effect evaporation system 22, the outlet of the second liquid waste tank 20 and multiple-effect
Send out and be provided with the 3rd delivery pump 23 on the pipeline between the entrance of system 22；Consolidating of multi-effect evaporation system 22
Carnallite solid is discharged in body outlet, and the liquid outlet of multi-effect evaporation system 22 is connected to distillate water storage tank 24
Entrance, the second dilute sulfuric acid head tank 25 is communicated to distillate the charge door of water storage tank 24, distillates water storage tank 24
Outlet be connected to the entrance of resin anion (R.A.) 27, going out of resin anion (R.A.) 27 by the second delivery pump 26
The entrance of mouth connection resin cation 4, the discharge water after the outlet discharge process of resin cation 4.
Its operation principle is as follows: nitric acid spent solder stripper carries out heavy tin reaction in the first reactor 1, logical
Crossing the first filter press 8 and obtaining tin mud, liquid obtains nitric acid by mixed water after diffusion dialysis film 13, it
Rear raffinate carries out heavy copper reaction in the second reactor 2, obtains copper sludge by the second filter press 18, afterwards
Liquid after regulation pH value is isolated carnallite, distilled water, wherein carnallite through multi-effect evaporation system 22
By the outer process of committee, the distilled water being obtained is sequentially passed through resin anion (R.A.) 27 He after again regulating pH value
Resin cation 4 thus adsorb ammoniacal nitrogen and nitrate nitrogen so that water outlet total nitrogen qualified discharge.
Above specific embodiment of the utility model is described in detail, but content has been only this practicality newly
The preferred embodiment that type is created, it is impossible to be considered for limiting the practical range that the utility model is created.All
Create, according to the utility model, impartial change and the improvement etc. that application range is made, all should still belong to this practicality
Within novel patent covering scope.
Claims (10)
1. the device of the integrated treatment of a nitric acid spent solder stripper, it is characterised in that: it includes that first is anti-
Answering kettle, the second reactor, described first reactor is heavy tin reactor, and described second reactor is heavy copper
Reactor, the entrance of described first reactor of tin removal waste liquor reservoir connection, surfactant, polypropylene
Acid amides each leads into the charging entrance of described first reactor, and the outlet at bottom of described first reactor is external
Having the entrance of the first filter press, the solid outlet of described first filter press discharges tin mud, described first press filtration
The liquid outlet of machine is connected to the entrance of diffusion dialysis film, and the entrance of described diffusion dialysis film is communicated with simultaneously
Water source, the acid solution outlet external recovery nitric acid storage tank of described diffusion dialysis film, giving up of described diffusion dialysis film
Liquid outlet is external to the entrance of described second reactor, and liquid caustic soda, vulcanized sodium are reacted by described second respectively
The charging entrance of kettle, the outlet at bottom of described second reactor is circumscribed with the entrance of the second filter press, described
The solid outlet of the second filter press discharges copper sludge, and the liquid outlet of described second filter press is connected to second and gives up
The entrance of liquid storage tank, the first dilute sulfuric acid head tank is communicated to the charge door of described second liquid waste tank, described
The outlet of the second liquid waste tank is to the entrance of multi-effect evaporation system, the solid of described multi-effect evaporation system
Carnallite solid is discharged in outlet, and the liquid outlet of described multi-effect evaporation system is connected to distillate the entrance of water storage tank,
Second dilute sulfuric acid head tank distillates the charge door of water storage tank, the described outlet distillating water storage tank described in being communicated to
It is sequentially connected with resin anion (R.A.), resin cation, the row after the outlet discharge process of described resin cation
Water outlet.
2. the device of the integrated treatment of a kind of nitric acid spent solder stripper as claimed in claim 1, its feature
It is: arrange on the pipeline between the outlet of described tin removal waste liquor storage tank and the entrance of described first reactor
Having the first feed pump, surfactant head tank, polyacrylamide head tank are respectively arranged in described first
The top of reactor, described surfactant head tank, the lower exit port difference of polyacrylamide head tank
Connect the independent charging entrance of described first reactor.
3. the device of the integrated treatment of a kind of nitric acid spent solder stripper as claimed in claim 1, its feature
It is: set on the pipeline between the outlet at bottom of described first reactor and the entrance of described first filter press
It is equipped with the first filter pressing pump.
4. the device of the integrated treatment of a kind of nitric acid spent solder stripper as claimed in claim 1, its feature
It is: the liquid outlet of described first filter press is connected to the entrance of the first liquid waste tank, and described first gives up
The outlet of liquid storage tank is communicated to the entrance of waste liquid high-level storage groove by the first delivery pump, the high-order storage of described waste liquid
The outlet of groove is connected to the entrance of diffusion dialysis film.
5. the device of the integrated treatment of a kind of nitric acid spent solder stripper as claimed in claim 1, its feature
It is: elevated tank with caustic soda liquid, vulcanized sodium head tank are respectively arranged in the top of described second reactor, described
Elevated tank with caustic soda liquid, the lower exit port of vulcanized sodium head tank connect independent the adding of described second reactor respectively
Material entrance.
6. the device of the integrated treatment of a kind of nitric acid spent solder stripper as claimed in claim 1, its feature
It is: set on the pipeline between the outlet at bottom of described second reactor and the entrance of described second filter press
It is equipped with the second filter pressing pump, between the outlet of described second liquid waste tank and the entrance of described multi-effect evaporation system
Pipeline on be provided with the 3rd delivery pump.
7. the device of the integrated treatment of a kind of nitric acid spent solder stripper as claimed in claim 1, its feature
It is: the described outlet distillating water storage tank is connected to the entrance of described resin anion (R.A.) by the second delivery pump,
The entrance of resin cation described in the outlet of described resin anion (R.A.).
8. the device of the integrated treatment of a kind of nitric acid spent solder stripper as claimed in claim 1, its feature
It is: described diffusion dialysis film is anion diffusion dialysis film.
9. the device of the integrated treatment of a kind of nitric acid spent solder stripper as claimed in claim 1, its feature
It is: described multi-effect evaporation system is specially triple effect evaporation system.
10. the device of the integrated treatment of a kind of nitric acid spent solder stripper as claimed in claim 1, its feature
It is: described resin anion (R.A.) is macroporous acrylic system weak anion resin D315, described cation
Resin is large porous strong acid cation resin HD-8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520964296.9U CN205676301U (en) | 2015-11-27 | 2015-11-27 | A kind of device of the integrated treatment of nitric acid spent solder stripper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520964296.9U CN205676301U (en) | 2015-11-27 | 2015-11-27 | A kind of device of the integrated treatment of nitric acid spent solder stripper |
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| CN205676301U true CN205676301U (en) | 2016-11-09 |
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| CN201520964296.9U Active CN205676301U (en) | 2015-11-27 | 2015-11-27 | A kind of device of the integrated treatment of nitric acid spent solder stripper |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105330080A (en) * | 2015-11-27 | 2016-02-17 | 昆山市千灯三废净化有限公司 | Comprehensive treatment method of nitric acid type tin stripping waste solution and corresponding treatment device |
| CN107268007A (en) * | 2017-06-16 | 2017-10-20 | 四川绿源聚能环保科技有限责任公司 | A kind of method of tin removal waste liquor circular regeneration |
| CN111424280A (en) * | 2020-03-31 | 2020-07-17 | 遂宁市瑞思科环保科技有限公司 | Regeneration system and method for tin stripping waste liquid |
| CN111875146A (en) * | 2020-08-10 | 2020-11-03 | 清远市新绿环境技术有限公司 | Resource utilization system and method for tin-stripping wastewater |
| CN113772799A (en) * | 2021-09-16 | 2021-12-10 | 苏州博洋化学股份有限公司 | Efficient heavy metal capture agent |
-
2015
- 2015-11-27 CN CN201520964296.9U patent/CN205676301U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105330080A (en) * | 2015-11-27 | 2016-02-17 | 昆山市千灯三废净化有限公司 | Comprehensive treatment method of nitric acid type tin stripping waste solution and corresponding treatment device |
| CN105330080B (en) * | 2015-11-27 | 2018-06-26 | 昆山市千灯三废净化有限公司 | A kind of integrated conduct method of nitric acid spent solder stripper and corresponding processing unit |
| CN107268007A (en) * | 2017-06-16 | 2017-10-20 | 四川绿源聚能环保科技有限责任公司 | A kind of method of tin removal waste liquor circular regeneration |
| CN111424280A (en) * | 2020-03-31 | 2020-07-17 | 遂宁市瑞思科环保科技有限公司 | Regeneration system and method for tin stripping waste liquid |
| CN111424280B (en) * | 2020-03-31 | 2022-08-23 | 遂宁市瑞思科环保科技有限公司 | Regeneration system and method for tin stripping waste liquid |
| CN111875146A (en) * | 2020-08-10 | 2020-11-03 | 清远市新绿环境技术有限公司 | Resource utilization system and method for tin-stripping wastewater |
| CN111875146B (en) * | 2020-08-10 | 2021-04-16 | 清远市新绿环境技术有限公司 | Resource utilization system and method for tin-stripping wastewater |
| CN113772799A (en) * | 2021-09-16 | 2021-12-10 | 苏州博洋化学股份有限公司 | Efficient heavy metal capture agent |
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