CN102765832B - System for recycling nickel from electroplating wastewater - Google Patents
System for recycling nickel from electroplating wastewater Download PDFInfo
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- CN102765832B CN102765832B CN201210270086.0A CN201210270086A CN102765832B CN 102765832 B CN102765832 B CN 102765832B CN 201210270086 A CN201210270086 A CN 201210270086A CN 102765832 B CN102765832 B CN 102765832B
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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
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Abstract
The invention discloses a system for recycling nickel from electroplating wastewater, which comprises a wastewater pretreatment system, a reverse osmosis system, and a modified high polymer material adsorption system, wherein the reverse osmosis system comprises a concentrating tank, a booster pump, an NF (nano-filtration) membrane, a sodium-contained tank, a RO (reverse osmosis) membrane and a pure water tank; the concentrated solution in the concentrating tank is conveyed to the NF membrane through a pipeline and the booster pump; the NF membrane is provided with two outlets which are respectively communicated with the sodium-contained tank and the modified high polymer material adsorption system; the solution in the sodium-contained tank is conveyed to the RO membrane through a pipeline and the booster pump; the RO membrane is provided with two outlets which are respectively communicated with the pure water tank and the sodium-contained tank; the modified high polymer material adsorption system comprises a multistage resin adsorption tank, a drug dispersing box, a regenerative pump and a concentrated solution tank; a water outlet of the multistage resin adsorption tank is communicated with an water inlet of the concentrated liquid tank; and the drug dispersing box is communicated with to the resin adsorption tank through the regenerative pump, the pipe and each branch valve. The system can recycle nickel from the electroplating wastewater and recycle the wastewater with good economic benefits and environment benefits.
Description
Technical field
The invention belongs to the sewage treatment equipment of electroplating industry, be specifically related to a kind of equipment for the treatment of nickel in waste electroplating water metal ion.
Background technology
Along with the enforcement of the strategy of sustainable development, recycling industries and clean production technology more and more receives people's concern, since reform and opening-up, China's Economic development is very fast, and efforts at environmental protection cannot be caught up with the paces of urgent development all the time, especially aspect Heavy Metal Pollution.
Existing processing nickel in waste electroplating water ion main by methods such as chemical precipitation, reverse osmosis membrane processing, ion-exchanges, chemical precipitation is to add the precipitation agents such as oxyhydroxide in nickel-containing waste water, make nickel precipitation by metallic ion, can recycle also meet national environmental standard; Reverse osmosis membrane treatment method have efficiency high technology flow process short, be easy to the features such as control, but the comparison of ingredients complexity of electroplating wastewater is high to the specification of quality of film, and requires strict pre-treatment; Ion exchange method can reasonablely realize the cyclically utilizing of nickel ion and water resources, but in ion exchange process, the impurity in waste water can affect the purity of the nickel ion of ion-exchanging efficiency and recovery.
Summary of the invention
In order to address the above problem, the invention provides a kind of electroplating wastewater recovery and processing system, comprise waste water pretreatment system, reverse osmosis system, modified polymer material adsorption system, the water-in of described waste water pretreatment system is communicated with electroplating wastewater collecting tank, it is characterized in that: reverse osmosis system comprises concentrated bucket, supercharging press pump, NF film, containing sodium bucket, RO film and pure water cylinder, waste water pretreatment system water outlet passes in concentrated bucket, in concentrated bucket, concentrated solution is sent into NF film by pipeline and topping-up pump, described NF film is provided with two outlets, the first outlet with containing sodium bucket is communicated be used for will send into containing sodium bucket through liquid, the second outlet is communicated with modified polymer material adsorption system for concentrated solution is sent into modified polymer material adsorption system, send into RO film containing the solution in sodium bucket by pipeline and topping-up pump, described RO film is provided with two outlets, the first outlet is communicated with pure water cylinder for the pure water seeing through is sent into pure water cylinder, the second outlet be communicated with and be formed for solution to send back to containing the circulation loop in sodium bucket containing sodium bucket, modified polymer material adsorption system comprises multistage resin absorption tank, Scatula, regenerative pump and concentrated bucket, the concentrated solution that the second outlet of NF film is sent passes in multistage resin absorption tank, the water outlet of multistage resin absorption tank is communicated with the water-in of concentrated bucket, and Scatula is communicated on resin absorption tank by regenerative pump, pipeline and each branch road valve.
Further, described waste water pretreatment system comprises the sand canister, cartridge filter, the UF film that are communicated with successively, UF film has two outlets, the first outlet is communicated with concentrated bucket for concentrated solution being sent into concentrated bucket, and the second outlet is communicated with electroplating wastewater collecting tank and is formed for sending through liquid the circulation loop of electroplating wastewater collecting tank back to.
Further, the water-in of described sand canister is communicated with electroplating wastewater collecting tank by raw water pump.
Further, in the second outlet of described RO film, be connected with outer row pipeline.
Further, described modified polymer material adsorption system also comprises the second concentrated bucket, and its water-in is communicated with the second outlet of NF film, and water outlet is communicated with the water-in of multistage resin absorption tank.
Further, the second outlet of described NF film is communicated with concentrated bucket the loop that forms a circulation by pipeline, on this pipeline, have two outer rows mouthful, outer row mouthful by concentrated solution send in multistage resin absorption tank, another outer row mouthful is communicated with the water-in of second concentrated barrel.
Further, described Scatula comprises lye tank, pure water cylinder and acid solution bucket, and described lye tank, pure water cylinder and acid solution bucket are connected with regenerative pump respectively, and is communicated with resin absorption tank by pipeline and branch road valve.
The present invention has following beneficial effect:
According to electroplating wastewater nickel recovery and processing system provided by the invention, by reverse osmosis membrane method and the ion-exchange techniques processing electroplating wastewater that combines, recycle, the waste water recycling that can realize nickel in waste electroplating water, have good economic benefit and environmental benefit; Waste water first can effectively be removed impurity and the sodium ion in waste water by waste water pretreatment system and reverse osmosis membrane before carrying out ion-exchange, improved the purity of the nickel ion of ion-exchanging efficiency and recovery.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
Fig. 1 is the structural representation of the embodiment of the present invention.
Embodiment
Technical scheme for a better understanding of the present invention, describes embodiment provided by the invention in detail below in conjunction with accompanying drawing.
With reference to a kind of electroplating wastewater nickel recovery and processing system shown in Fig. 1, a kind of nickel in waste electroplating water recovery and processing system, comprises the water pretreatment system 2, reverse osmosis system 3, the modified polymer material adsorption system 4 that are connected successively with electroplating wastewater collecting tank 1;
Waste water pretreatment system 2 comprises the sand canister 21, cartridge filter 22, the UF film 23 that are communicated with successively, waste water in electroplating wastewater collecting tank 1 passes in sand canister 21 by raw water pump 11, UF film 23 has two outlets, the first outlet 231 is communicated with 3 and is communicated with electroplating wastewater collecting tank 1 and carries out circular treatment for will send electroplating wastewater collecting tank 1 back to through liquid for concentrated solution being sent into reverse osmosis system 3, the second outlets 232 with reverse osmosis system; Waste water pretreatment system 2 can effectively be removed the organism in electroplating wastewater, improves the water quality after electroplating wastewater processing, makes electroplating wastewater before reverse osmosis system 3, reach best requirement entering;
Modified polymer material adsorption system 4 comprises multistage resin absorption tank 41, the second concentrated bucket 42, Scatula 43, regenerative pump 44, concentrated bucket 45, the second outlet 322 of NF film 32 is provided with two outer rows mouthful, an outer row mouthful sends into concentrated solution in multistage resin absorption tank 41, another outer row mouthful is communicated with the water-in of the second concentrated bucket 42, the water outlet of multistage resin absorption tank 41 is communicated with the water-in of concentrated bucket 45, Scatula 43 comprises lye tank 431, pure water cylinder 432 and acid solution bucket 433, lye tank 431, pure water cylinder 432 and acid solution bucket 433 are respectively by regenerative pump 44, pipeline and each branch road valve are communicated on resin absorption tank 41.
The above, be only preferred embodiment of the present invention, therefore can not limit scope of the invention process with this, the equivalence of doing according to the present patent application the scope of the claims and description changes and modifies, and all should still remain within the scope of the patent.
Claims (7)
1. a nickel in waste electroplating water recovery and processing system, comprises waste water pretreatment system, reverse osmosis system, modified polymer material adsorption system, and the water-in of described waste water pretreatment system is communicated with electroplating wastewater collecting tank, it is characterized in that:
Reverse osmosis system comprises concentrated bucket, topping-up pump, NF film, containing sodium bucket, RO film and pure water cylinder, waste water pretreatment system water outlet passes in concentrated bucket, in concentrated bucket, concentrated solution is sent into NF film by pipeline and topping-up pump, described NF film is provided with two outlets, the first outlet with containing sodium bucket is communicated be used for will send into containing sodium bucket through liquid, the second outlet is communicated with modified polymer material adsorption system for concentrated solution is sent into modified polymer material adsorption system, the described solution containing in sodium bucket is sent into RO film by pipeline and topping-up pump, described RO film is provided with two outlets, the first outlet is communicated with pure water cylinder for the pure water seeing through is sent into pure water cylinder, the second outlet be communicated with and be formed for solution to send back to containing the circulation loop in sodium bucket containing sodium bucket,
Modified polymer material adsorption system comprises multistage resin absorption tank, Scatula, regenerative pump and concentrated bucket, the concentrated solution that the second outlet of NF film is sent passes in multistage resin absorption tank, the water outlet of multistage resin absorption tank is communicated with the water-in of concentrated bucket, and Scatula is communicated on resin absorption tank by regenerative pump, pipeline and each branch road valve.
2. nickel in waste electroplating water recovery and processing system according to claim 1, it is characterized in that: described waste water pretreatment system comprises the sand canister, cartridge filter, the UF film that are communicated with successively, UF film has two outlets, the first outlet is communicated with concentrated bucket for concentrated solution being sent into concentrated bucket, and the second outlet is communicated with electroplating wastewater collecting tank and is formed for sending through liquid the circulation loop of electroplating wastewater collecting tank back to.
3. nickel in waste electroplating water recovery and processing system according to claim 2, is characterized in that: the water-in of described sand canister is communicated with electroplating wastewater collecting tank by raw water pump.
4. nickel in waste electroplating water recovery and processing system according to claim 1, is characterized in that: in the second outlet of described RO film, be connected with outer row pipeline.
5. nickel in waste electroplating water recovery and processing system according to claim 1, it is characterized in that: described modified polymer material adsorption system also comprises the second concentrated bucket, its water-in is communicated with the second outlet of NF film, and water outlet is communicated with the water-in of multistage resin absorption tank.
6. nickel in waste electroplating water recovery and processing system according to claim 5, it is characterized in that: the second outlet of described NF film is communicated with concentrated bucket the loop that forms a circulation by pipeline, on this pipeline, have two outer rows mouthful, outer row mouthful by concentrated solution send in multistage resin absorption tank, another outer row mouthful is communicated with the water-in of second concentrated barrel.
7. nickel in waste electroplating water recovery and processing system according to claim 1, it is characterized in that: described Scatula comprises lye tank, pure water cylinder and acid solution bucket, described lye tank, pure water cylinder and acid solution bucket are connected with regenerative pump respectively, and are communicated with resin absorption tank by pipeline and branch road valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210270086.0A CN102765832B (en) | 2012-08-01 | 2012-08-01 | System for recycling nickel from electroplating wastewater |
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| CN201210270086.0A CN102765832B (en) | 2012-08-01 | 2012-08-01 | System for recycling nickel from electroplating wastewater |
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| CN102765832A CN102765832A (en) | 2012-11-07 |
| CN102765832B true CN102765832B (en) | 2014-07-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103288245A (en) * | 2013-06-27 | 2013-09-11 | 昆山同心表面科技有限公司 | On-line nickel plating wastewater processor |
| CN103435173A (en) * | 2013-09-04 | 2013-12-11 | 汉特（清远）化工有限公司 | Treatment system and process for treating acidic copper-containing electroplating wastewater |
| CN106007154A (en) * | 2016-08-09 | 2016-10-12 | 成都虹华环保科技股份有限公司 | Device and method for extracting heavy metals from hydrometallurgy wastewater |
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| KR20030091913A (en) * | 2003-11-15 | 2003-12-03 | 김동진 | Livestock wastewater treatment system for removal of T-N and chromatility attached a reverse osmosis membrane block and an electrolysis tank |
| CN1590322A (en) * | 2003-09-05 | 2005-03-09 | 国家海洋局杭州水处理技术研究开发中心 | Membrane separation method of zero discharge of electroplating waste water treatment |
| CN101070215A (en) * | 2006-04-05 | 2007-11-14 | 肖应东 | Electroplating waste-water reutilizing process |
| CN201512599U (en) * | 2009-08-13 | 2010-06-23 | 上海瑞勇实业有限公司 | Equipment for recovering metallic copper or nickel from electroplating rinse water |
| CN202717646U (en) * | 2012-08-01 | 2013-02-06 | 威洁（石狮）中水回用技术有限公司 | Electroplating wastewater recovery treatment system |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1590322A (en) * | 2003-09-05 | 2005-03-09 | 国家海洋局杭州水处理技术研究开发中心 | Membrane separation method of zero discharge of electroplating waste water treatment |
| KR20030091913A (en) * | 2003-11-15 | 2003-12-03 | 김동진 | Livestock wastewater treatment system for removal of T-N and chromatility attached a reverse osmosis membrane block and an electrolysis tank |
| CN101070215A (en) * | 2006-04-05 | 2007-11-14 | 肖应东 | Electroplating waste-water reutilizing process |
| CN201512599U (en) * | 2009-08-13 | 2010-06-23 | 上海瑞勇实业有限公司 | Equipment for recovering metallic copper or nickel from electroplating rinse water |
| CN202717646U (en) * | 2012-08-01 | 2013-02-06 | 威洁（石狮）中水回用技术有限公司 | Electroplating wastewater recovery treatment system |
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