CN104341056A - A method and a treatment trough for treating waste liquid of a precious-metal recovery process - Google Patents
A method and a treatment trough for treating waste liquid of a precious-metal recovery process Download PDFInfo
- Publication number
- CN104341056A CN104341056A CN201310313487.4A CN201310313487A CN104341056A CN 104341056 A CN104341056 A CN 104341056A CN 201310313487 A CN201310313487 A CN 201310313487A CN 104341056 A CN104341056 A CN 104341056A
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- China
- Prior art keywords
- trough
- waste liquid
- recovery process
- treatment
- metal recovery
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
A method for treating waste liquid of a precious-metals recovery process is disclosed. The method is characterized by comprising following steps of: feeding the waste liquid into an oxidation trough, performing a breakpoint chlorination reaction, feeding the treated waste liquid into a reaction trough, performing a neutralization reaction, adding the neutralized waste liquid into a precipitation trough, with most of metal ions forming precipitates, discharging the precipitates out of the trough through a gas pipe to form solid-state precipitates, feeding the supernatant liquid into a water discharging trough, adjusting pH to 7, and discharging. The beneficial effects of the method are that: a treatment trough is separated into a plurality of parts, efficient utilization of the treatment trough is achieved; the precipitation trough treats aluminum slats at the bottom of the trough by using a gas device; solid-liquid separation is achieved; and effective treatment of waste water is achieved.
Description
Technical field
The present invention relates to technical field of environment protection equipment, especially a kind of method and treatment trough processing precious metal recovery process waste liquid.
Background technology
Problem of environmental pollution becomes extremely important along with modern industry develops rapidly.Especially chemical industry, limited resources is utilized to create larger value, this just makes more oil, chemical industry adopt when selecting production catalyzer the catalyzer containing precious metal, and these catalyzer containing precious metal have better effect in work-ing life and transformation efficiency usually.In these catalyzer, the recycling of precious metal has become the important secondary resource of precious metal.
Rare due to Precious Metals Resources, expensive, usually need load in use on some carrier, as activated alumina ball, therefore need in recovery process process to use a large amount of these aluminum oxide of acid dissolve, a large amount of aluminium salt can be generated in its recovery process waste water, very large inconvenience is brought to wastewater treatment work.
Summary of the invention
For solving produced problem in prior art, the object of this invention is to provide a kind of method and the treatment trough that process precious metal recovery process waste liquid.
The present invention is achieved through the following technical solutions:
Process a method for precious metal recovery process waste liquid, it is characterized in that, comprise following steps:
1. waste liquid is put into oxidation trough and carry out break point chlorination reaction.
2. the waste liquid after process is put into reactive tank and is carried out neutralization reaction.
3. the waste liquid after neutralization puts into settling bath, and wherein most of metal ion forms precipitation.
4. throw out is via outside stripping tube drain tank, forms solid precipitation thing, and supernatant liquid enters after effluent trough regulates ph to 7 and discharges.
Further, added by described break point chlorination method, muriate is clorox.
Further, alkali used in described neutralization reaction is the mixture of sodium hydroxide and potassium hydroxide.
A kind for the treatment of trough for the treatment of precious metal recovery process waste liquid, comprise a cell body, cell body is provided with water-in and water outlet, it is characterized in that, described cell body skin is stainless steel, internal layer is anticorrosive, more than one dividing plate is provided with in described cell body, cell body inside is divided into oxidation trough, reactive tank, settling bath and effluent trough by dividing plate, described water-in is arranged on oxidation trough place, and connect recovery process wastewater discharge pipe, water outlet is arranged on effluent trough place, connect Chinese effluent pipe, described reaction tank bottom is provided with aerating apparatus.
Further, described oxidation trough and reactive tank top are provided with agitator.
Further, described settling bath arranged outside has a stripping tube interface, is connected with stripping tube.
Beneficial effect: described treatment trough is divided into several part, has accomplished the efficiency utilization for the treatment of trough, and settling bath employs the aluminium salt that gas device is taken at the bottom for the treatment of pond, realizes the separation of solid-liquid, accomplishes effective process of sewage.
Accompanying drawing explanation
Fig. 1 is schema of the present invention;
Fig. 2 is plan structure figure of the present invention.
Embodiment
In order to make technique means of the present invention, creation characteristic, reach object and effect is easy to understand, below in conjunction with accompanying drawing specific embodiment, the present invention is further elaborated.
As shown in Figure 1, a kind of method processing precious metal recovery process waste liquid, comprises following steps:
1. waste liquid is put into oxidation trough and carry out break point chlorination reaction.
2. the waste liquid after process is put into reactive tank and is carried out neutralization reaction.
3. the waste liquid after neutralization puts into settling bath, and wherein most of metal ion forms precipitation.
4. throw out is via outside stripping tube drain tank, forms solid precipitation thing, and supernatant liquid enters after effluent trough regulates ph to 7 and discharges.
As shown in Figure 2, the treatment trough that present method uses comprises a cell body, cell body is provided with water-in 1 and water outlet 2, cell body skin is stainless steel, internal layer is anticorrosive, more than one dividing plate is provided with in cell body, cell body inside is divided into oxidation trough 3 by dividing plate, reactive tank 4, settling bath 5 and effluent trough 6, water-in 1 is arranged on oxidation trough 3 place, connect recovery process wastewater discharge pipe, water outlet 2 is arranged on effluent trough 6 place, connect Chinese effluent pipe, aerating apparatus 7 is provided with bottom described reactive tank 4, described oxidation trough 3 and reactive tank 4 top are provided with agitator 8, described settling bath 5 arranged outside has a stripping tube interface 9, be connected with stripping tube.
The waste water of recovery process enters wastewater oxidation groove, and adopt break point chlorination method clorox to be added in pond the ammonia nitrogen being used for removing Coal Gas Washing Cycling Water, break point chlorination method is: when Organic substance in water is mainly ammonia and nitride, after its actual chlorine demand meets, chlorine dosage increases, and residual chlorine amount increases, but the latter increasess slowly, after for some time, chlorine dosage increases, and residual chlorine amount declines on the contrary, after this chlorine dosage increases, residual chlorine amount rises again, and after this break, freedom chlorine residue occurs, continues chlorination effect best.Processed waste water is sent into reactive tank and is regulated ph to 9 by the mixture adding sodium hydroxide and potassium hydroxide, make the precipitation by metallic ion of the overwhelming majority in waste water out, waste water after adjustment enters settling bath, guarantee that metal ion is wherein precipitated out completely, lower sediment is discharged by stripping tube, and supernatant liquid enters after effluent trough regulates ph to 7 and discharges.
More than show and describe its general principles and principal character and advantage.The technician of the industry should understand; the foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent transformation utilizing specification sheets of the present invention and accompanying drawing content to do; directly or indirectly be used in the technical field that other are relevant, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. process a method for precious metal recovery process waste liquid, it is characterized in that, comprise following steps:
1. waste liquid is put into oxidation trough and carry out break point chlorination reaction.
2. the waste liquid after chlorination is put into reactive tank and is carried out neutralization reaction.
3. waste liquid after neutralization is put into settling bath, wherein most of metal ion forms precipitation.
4. throw out is via outside flue drain tank, forms solid precipitation thing, and supernatant liquid enters after effluent trough regulates ph to 7 and discharges.
2. a kind of method processing precious metal recovery process waste liquid according to claim 1, is characterized in that, added by described break point chlorination method, muriate is clorox.
3. a kind of method processing precious metal recovery process waste liquid according to claim 1, is characterized in that, alkali used in described neutralization reaction is the mixture of sodium hydroxide and potassium hydroxide.
4. the treatment trough for the treatment of precious metal recovery process waste liquid, comprise a cell body, cell body is provided with water-in and water outlet, it is characterized in that, described cell body skin is stainless steel, internal layer is anticorrosive, more than one dividing plate is provided with in described cell body, cell body inside is divided into oxidation trough, reactive tank, settling bath and effluent trough by dividing plate, described water-in is arranged on oxidation trough place, and connect recovery process wastewater discharge pipe, water outlet is arranged on effluent trough place, connect Chinese effluent pipe, described reaction tank bottom is provided with aerating apparatus.
5. kind according to claim 1 is for the treatment of the treatment trough of precious metal recovery process waste liquid, it is characterized in that, described oxidation trough and reactive tank top are provided with agitator.
6. kind according to claim 1 is for the treatment of the treatment trough of precious metal recovery process waste liquid, it is characterized in that, described settling bath arranged outside has a stripping tube interface, is connected with stripping tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310313487.4A CN104341056A (en) | 2013-07-24 | 2013-07-24 | A method and a treatment trough for treating waste liquid of a precious-metal recovery process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310313487.4A CN104341056A (en) | 2013-07-24 | 2013-07-24 | A method and a treatment trough for treating waste liquid of a precious-metal recovery process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104341056A true CN104341056A (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310313487.4A Pending CN104341056A (en) | 2013-07-24 | 2013-07-24 | A method and a treatment trough for treating waste liquid of a precious-metal recovery process |
Country Status (1)
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| CN (1) | CN104341056A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293774A (en) * | 2015-11-18 | 2016-02-03 | 金川集团股份有限公司 | Method for increasing recovery rate of precious metals in waste liquid |
| CN106431830A (en) * | 2016-08-11 | 2017-02-22 | 刘定忠 | Decomposition method of tetramethyl ammonium hydroxide solution and decomposition device thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5549191A (en) * | 1978-10-03 | 1980-04-09 | Hitachi Plant Eng & Constr Co Ltd | Purifying treatment method of waste water |
| CN101428887A (en) * | 2008-12-09 | 2009-05-13 | 中南大学 | Treatment for nickel-ammonia wastewater with aeration-hydrolyzing process |
| CN102583819A (en) * | 2012-02-03 | 2012-07-18 | 广州科城环保科技有限公司 | Method for processing waste water generated by extracting copper oxide from acidic corrosion waste fluid |
| CN203360181U (en) * | 2013-07-24 | 2013-12-25 | 上海派特贵金属有限公司 | Treatment tank used for treating waste liquid of noble metal reclaiming process |
-
2013
- 2013-07-24 CN CN201310313487.4A patent/CN104341056A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5549191A (en) * | 1978-10-03 | 1980-04-09 | Hitachi Plant Eng & Constr Co Ltd | Purifying treatment method of waste water |
| CN101428887A (en) * | 2008-12-09 | 2009-05-13 | 中南大学 | Treatment for nickel-ammonia wastewater with aeration-hydrolyzing process |
| CN102583819A (en) * | 2012-02-03 | 2012-07-18 | 广州科城环保科技有限公司 | Method for processing waste water generated by extracting copper oxide from acidic corrosion waste fluid |
| CN203360181U (en) * | 2013-07-24 | 2013-12-25 | 上海派特贵金属有限公司 | Treatment tank used for treating waste liquid of noble metal reclaiming process |
Non-Patent Citations (1)
| Title |
|---|
| 宋卫锋等: "折点氯化法处理高NH3-N含钴废水试验与工程实践", 《环境工程》, vol. 24, no. 5, 31 October 2006 (2006-10-31) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293774A (en) * | 2015-11-18 | 2016-02-03 | 金川集团股份有限公司 | Method for increasing recovery rate of precious metals in waste liquid |
| CN106431830A (en) * | 2016-08-11 | 2017-02-22 | 刘定忠 | Decomposition method of tetramethyl ammonium hydroxide solution and decomposition device thereof |
| CN106431830B (en) * | 2016-08-11 | 2020-03-31 | 刘定忠 | Method and apparatus for decomposing tetramethylammonium hydroxide solution |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20150211 |