CN102295330A - Method for synchronous treatment of waste liquid and waste acid of heavy metal - Google Patents
Method for synchronous treatment of waste liquid and waste acid of heavy metal Download PDFInfo
- Publication number
- CN102295330A CN102295330A CN2011102715556A CN201110271555A CN102295330A CN 102295330 A CN102295330 A CN 102295330A CN 2011102715556 A CN2011102715556 A CN 2011102715556A CN 201110271555 A CN201110271555 A CN 201110271555A CN 102295330 A CN102295330 A CN 102295330A
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- China
- Prior art keywords
- heavy metal
- waste liquid
- spent acid
- exchange membrane
- proton exchange
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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
- Y02P10/20—Recycling
Abstract
The invention discloses a method for synchronous treatment of waste liquid and waste acid of heavy metal. The method comprises the following steps: proton exchange membrane is placed between an anode chamber and a cathode chamber, The acidity reduction, heavy metal ions removal and the simple substance of heavy metal recovery are realized by using the electrolytic principle and the closed circuit current effect. The invention is characterized in that no extra chemical material requires adding, and the invention has the advantages of low energy consumption, high efficiency, scope application and the like.
Description
Affiliated technical field
The present invention relates to the reaction method of a kind of synchronous processing heavy metal waste liquid and spent acid.
Background technology
The spent acid that the acidity that chemical process produces is bigger or to contain the pollution problem of heavy metal ion waste liquid day by day serious.The spent acid that pH is low excessively directly discharging can make the receiving water body acid base imbalance, and influences eubolism biological in the water body; Contain the waste liquid of heavy metal ion if be untreated just to enter and accept water body, not only make receiving water body deteriorating water quality, influence biological growth, heavy metal also may be seeped into underground water down, and the pollution in wide area body of groundwater.
The common method of handling spent acid has the alkali of adding neutralisation, concentration method etc., and the common treatment process of heavy metal waste liquid has chemical precipitation method, electrodip process etc.Above-mentioned these methods expend a large amount of chemical materials or electric energy, and wherein the heavy metal electrodip process also can produce secondary pollutants such as the anode sludge.Reduce material and use and the electric power energy consumption, and realize that two kinds of waste liquids of synchronous processing are to overcome existing treatment process defective, realize key point efficient and that low consumption is handled.
Summary of the invention
The invention provides the reaction method of a kind of synchronous processing heavy metal waste liquid and spent acid.
The technical solution adopted for the present invention to solve the technical problems is:
Closely fold up proton exchange membrane between the anolyte compartment of electrolyzer and anolyte compartment, the positive plate of graphite quality is connected with the volts DS take-off equipment by lead with negative plate.The effect of proton exchange membrane should make that chamber, the two poles of the earth is independent separately, anode and cathode liquid can not interpenetrate, and promptly proton exchange membrane makes heavy metal waste liquid that injects the anolyte compartment and the spent acid that injects cathode compartment only remain in separately utmost point chamber, and has only hydrogen ion to pass in film.In reaction was carried out, heavy metal ion obtained electronics and separates out in the negative plate surface; Hydrogen ion passes proton exchange membrane, leaves the anolyte compartment.Between cathode-anode plate, insert direct supply and make the electric current realization closed circuit, rationally control voltage between cathode-anode plate.After reaction finished, the employing mechanical blades is scraped or the method for expanding with heat and contract with cold is obtained the heavy metal simple substance of separating out from negative plate.
The invention has the beneficial effects as follows: under the driving of volts DS, the entire reaction device is realized closed circuit.Hydrogen ion in the spent acid passes proton exchange membrane and enters cathode compartment from the anolyte compartment, has realized that the acidity of spent acid reduces; Heavy metal ion in the catholyte obtains electronics, separates out on negative plate, has realized that the removal of heavy metal ion and heavy metal simple substance reclaim.
The used item description of the present invention: electrolyzer can be with the simple electrolyzer of tradition, as application (patent) number: 92101714.6 or the other types electrolyzer; Proton exchange membrane is the used proton exchange membrane film of common electrochemistry experiment, as Nafion, and the 117(du pont company) or other proton exchange membrane; The volts DS take-off equipment is direct current transformer commonly used, as JPS303D(China million letter companies) or other volts DS take-off equipments.
Embodiment
Method embodiment of the present invention: closely fold up proton exchange membrane between anolyte compartment and anolyte compartment, positive plate is connected with the volts DS take-off equipment by lead with negative plate and is connected.Proton exchange membrane makes that chamber, the two poles of the earth is independent separately, anode and cathode liquid can not interpenetrate, and promptly proton exchange membrane makes heavy metal waste liquid that injects cathode compartment and the spent acid that injects the anolyte compartment only remain in separately utmost point chamber, and has only hydrogen ion to pass in it.
When needing to handle, spent acid and heavy metal waste liquid are injected anolyte compartment and cathode compartment respectively; After connecting power supply reaction certain hour, emit the two poles of the earth raffinate, collect and do further processing; The anti-electrolytic processing apparatus that cleans is for using next time; Take out negative plate, the employing mechanical blades is scraped or the method for expanding with heat and contract with cold is obtained the heavy metal simple substance of separating out.
When not needing to use, cut off the electricity supply, properly placement gets final product.
Claims (4)
1. the reaction method of synchronous processing heavy metal waste liquid and spent acid is characterized in that synchronous processing heavy metal waste liquid and spent acid, realizes that the acidity of spent acid reduces, the removal of heavy metal ion, and the useless simple substance that belongs to of a huge sum of money is reclaimed in reduction.
2. according to claims 1 described a kind of reaction method, it is characterized in that using proton exchange membrane to separate the cathode and anode chamber.
3. a kind of reaction method according to claim 1 is characterized in that utilizing voltage to drive ion motion, realizes that acidity descends and removal of heavy metal ions.
4. according to claims 1 or 2 described a kind of reaction methods, it is characterized in that adopting mechanical blades to scrape or the method for expanding with heat and contract with cold is obtained the heavy metal simple substance of separating out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102715556A CN102295330A (en) | 2011-09-14 | 2011-09-14 | Method for synchronous treatment of waste liquid and waste acid of heavy metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102715556A CN102295330A (en) | 2011-09-14 | 2011-09-14 | Method for synchronous treatment of waste liquid and waste acid of heavy metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102295330A true CN102295330A (en) | 2011-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102715556A Pending CN102295330A (en) | 2011-09-14 | 2011-09-14 | Method for synchronous treatment of waste liquid and waste acid of heavy metal |
Country Status (1)
| Country | Link |
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| CN (1) | CN102295330A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633326A (en) * | 2012-04-28 | 2012-08-15 | 云南铜业股份有限公司 | Ion exchange membrane electrolysis method for treating acid waste water containing chloride in copper metallurgy process |
| CN102925919A (en) * | 2012-11-23 | 2013-02-13 | 哈尔滨工业大学 | On-line addition device for three-dimensional electrode electrochemical oxidation ferrate solution |
| CN103359824A (en) * | 2012-04-05 | 2013-10-23 | 北京大学深圳研究生院 | Method for treating dye wastewater by catalyzing biological electro-fenton through iron ore |
| CN110182908A (en) * | 2019-05-13 | 2019-08-30 | 浙江大学 | A kind of expanded graphite electrode and its preparation method and application for the removal of heavy metal ions in wastewater electrochemistry |
| CN111315690A (en) * | 2017-10-30 | 2020-06-19 | 阿蒂姆股份公司 | Method for purifying aqueous solution |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710625A (en) * | 2009-10-30 | 2010-05-19 | 北京大学深圳研究生院 | Fuel cell system and method of generating electricity and reducing heavy metal through sewage treatment |
-
2011
- 2011-09-14 CN CN2011102715556A patent/CN102295330A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710625A (en) * | 2009-10-30 | 2010-05-19 | 北京大学深圳研究生院 | Fuel cell system and method of generating electricity and reducing heavy metal through sewage treatment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359824A (en) * | 2012-04-05 | 2013-10-23 | 北京大学深圳研究生院 | Method for treating dye wastewater by catalyzing biological electro-fenton through iron ore |
| CN102633326A (en) * | 2012-04-28 | 2012-08-15 | 云南铜业股份有限公司 | Ion exchange membrane electrolysis method for treating acid waste water containing chloride in copper metallurgy process |
| CN102925919A (en) * | 2012-11-23 | 2013-02-13 | 哈尔滨工业大学 | On-line addition device for three-dimensional electrode electrochemical oxidation ferrate solution |
| CN111315690A (en) * | 2017-10-30 | 2020-06-19 | 阿蒂姆股份公司 | Method for purifying aqueous solution |
| CN110182908A (en) * | 2019-05-13 | 2019-08-30 | 浙江大学 | A kind of expanded graphite electrode and its preparation method and application for the removal of heavy metal ions in wastewater electrochemistry |
| CN110182908B (en) * | 2019-05-13 | 2021-04-06 | 浙江大学 | Expanded graphite electrode for electrochemically removing heavy metal ions in wastewater and preparation method and application thereof |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111228 |