CN103482786A - Method for treating waste water containing complex copper - Google Patents
Method for treating waste water containing complex copper Download PDFInfo
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- CN103482786A CN103482786A CN201310430270.1A CN201310430270A CN103482786A CN 103482786 A CN103482786 A CN 103482786A CN 201310430270 A CN201310430270 A CN 201310430270A CN 103482786 A CN103482786 A CN 103482786A
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Abstract
The invention relates to a method for treating waste water containing complex copper. The method comprises the following steps: adding hydrochloric acid to adjust the pH value of the waste water to 3.0-4.0; adding 20-200 ppm of sodium hypochlorite and stirring for 2-5 minutes; then, adding sodium hydroxide to adjust the pH value of the waste water to 10.5-11.5; further, adding 50-500 ppm of PAC (Poly Aluminum Chloride) and stirring for 2-5 minutes; then, adding 10-100 ppm of trithiocyanuric acid trisodium salt and stirring for 2-5 minutes; finally, adding 0.5-5 ppm of negative ions, stirring for 10-20 minutes, precipitating for 10-20 minutes, filtering, and measuring the copper content of the filtered water. The invention has the benefits that the method is low in cost and small in consumption, can be used for treating copper of different forms and copper in the complex state in water, is simple to operate, has no secondary pollution, and generates no poisonous gas; the copper removal rate reaches 99.4%.
Description
Technical field
The present invention relates to wastewater processing technology, relate in particular to a kind for the treatment of process containing complex copper waste water.
Background technology
Along with the development of modern industry, the processes such as printed-wiring board (PWB), plating, process hides, chemical manufacture all can produce a large amount of copper-containing wastewaters, if do not deal carefully with contaminate environment, and harm humans health.Can produce a large amount of reluctant cupric precipitating sludges in traditional copper-containing wastewater treating processes, easily form secondary pollution, copper-containing wastewater is very harmful to animal, plant and the mankind's, use the copper-containing wastewater irrigated farmland, cupric ion will be fixed in plant root, affect nutrition absorption, have a strong impact on the growth of farm crop; After copper-containing wastewater enters water body, copper is enrichment in vivo, and is converted into the heavy metal organic compound that toxicity is larger, and easily by food chain, enters human body, thereby to human body generation toxic action.Therefore, the pollution of managing to control and administer copper-containing wastewater seems very important and urgent.In the medicament of existing Treatment of Copper waste water, the most conventional sodium sulphite of general use joins in the waste water of cupric, make the copper in water produce copper sulfide precipitation, this method is removed the copper in waste water, consumption is large, water body darkens, exists secondary pollution, can produce toxic gas, and, to the basic non-processor effect of the copper waste water of complex state, cost performance is low.Thereby, need to effectively innovate prior art.
Summary of the invention
For above defect, the invention provides a kind of with low cost, consumption is few, can process the copper of the copper of various forms in water body and complex state, simple to operate, non-secondary pollution, toxic gas produces without having, the copper removal rate the is high treatment process containing complex copper waste water, to solve many deficiencies of existing wastewater processing technology.
For achieving the above object, the present invention is by the following technical solutions:
A kind for the treatment of process containing complex copper waste water, the steps include:
(1) first add hydrochloric acid to regulate wastewater pH to 3.0-4.0;
(2) add again the clorox of 20-200ppm to stir 2-5 minute;
(3) then, add sodium hydroxide to regulate wastewater pH to 10.5-11.5;
(4) continue to add the PAC polymerize aluminum chloride of 50-500ppm to stir 2-5 minute;
(5) add again the trithiocyanuric acid trisodium salt of 10-100ppm to stir 2-5 minute;
(6) last, add the negatively charged ion of 0.5-5ppm to stir 10-20 minute, precipitation 10-20 minute, filter, copper content in water after the survey filtration.
The value of described trithiocyanuric acid trisodium salt can be 40ppm and added negatively charged ion is 2.5ppm.
The value of described trithiocyanuric acid trisodium salt can be 80ppm and added negatively charged ion is 5ppm.
The beneficial effect of the treatment process containing complex copper waste water of the present invention is: by first adding hydrochloric acid, regulate wastewater pH to 3.0-4.0, adding clorox stirs again, then add sodium hydroxide to regulate wastewater pH to 10.5-11.5, add successively PAC, trithiocyanuric acid trisodium salt to stir, finally add negatively charged ion and fully stir, survey copper content in the rear water of filtration, the method is with low cost, consumption is few, can process the copper of various forms in water body and complex state copper, simple to operate, non-secondary pollution, without having, toxic gas produces, the copper removal rate is up to 99.4%.
Embodiment
embodiment 1
The described treatment process containing complex copper waste water of the embodiment of the present invention mainly is comprised of following steps:
(1) first add hydrochloric acid to regulate wastewater pH to 3.0-4.0;
(2) add again the clorox of 80ppm to stir 2-5 minute;
(3) then, add sodium hydroxide to regulate wastewater pH to 10.5-11.5;
(4) continue to add the PAC of 100ppm to stir 2-5 minute;
(5) add again the trithiocyanuric acid trisodium salt of 40ppm to stir 2-5 minute;
(6) last, add the negatively charged ion of 2.5ppm to stir 10-20 minute, precipitation 10-20 minute, filter, copper content in water after the survey filtration.
embodiment 2
Mainly by following steps, formed:
(1) first add hydrochloric acid to regulate wastewater pH to 3.0-4.0;
(2) add again the clorox of 80ppm to stir 2-5 minute;
(3) then, add sodium hydroxide to regulate wastewater pH to 10.5-11.5;
(4) continue to add the PAC of 100ppm to stir 2-5 minute;
(5) add again the trithiocyanuric acid trisodium salt of 80ppm to stir 2-5 minute;
(6) last, add the negatively charged ion of 5ppm to stir 10-20 minute, precipitation 10-20 minute, filter, copper content in water after the survey filtration.
Above embodiment is more preferably embodiment several of the present invention, the common variation that those skilled in the art carry out in the technical program scope and replace and should be included in protection scope of the present invention.
Claims (3)
1. the treatment process containing complex copper waste water, is characterized in that, the steps include:
(1) first add hydrochloric acid to regulate wastewater pH to 3.0-4.0;
(2) add again the clorox of 20-200ppm to stir 2-5 minute;
(3) then, add sodium hydroxide to regulate wastewater pH to 10.5-11.5;
(4) continue to add the PAC polymerize aluminum chloride of 50-500ppm to stir 2-5 minute;
(5) add again the trithiocyanuric acid trisodium salt of 10-100ppm to stir 2-5 minute;
(6) last, add the negatively charged ion of 0.5-5ppm to stir 10-20 minute, precipitation 10-20 minute, filter, copper content in water after the survey filtration.
2. the treatment process containing complex copper waste water according to claim 1, it is characterized in that: the value of described trithiocyanuric acid trisodium salt selects to can be 40ppm and added negatively charged ion is 2.5ppm.
3. the treatment process containing complex copper waste water according to claim 1, it is characterized in that: the value of described trithiocyanuric acid trisodium salt selects to can be 80ppm and added negatively charged ion is 5ppm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310430270.1A CN103482786A (en) | 2013-09-22 | 2013-09-22 | Method for treating waste water containing complex copper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310430270.1A CN103482786A (en) | 2013-09-22 | 2013-09-22 | Method for treating waste water containing complex copper |
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| Publication Number | Publication Date |
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| CN103482786A true CN103482786A (en) | 2014-01-01 |
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| CN201310430270.1A Pending CN103482786A (en) | 2013-09-22 | 2013-09-22 | Method for treating waste water containing complex copper |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103755068A (en) * | 2014-01-03 | 2014-04-30 | 上海丰信环保科技有限公司 | Treatment method for high concentration manganese-containing wastewater |
| CN103755067A (en) * | 2014-01-03 | 2014-04-30 | 上海丰信环保科技有限公司 | Treatment method for removing complex nickel out of wastewater |
| CN111470656A (en) * | 2020-04-15 | 2020-07-31 | 河海大学 | Treatment method of organic complex copper-containing wastewater |
| CN113025811A (en) * | 2021-03-05 | 2021-06-25 | 衢州华友钴新材料有限公司 | Deep elution method for chlorine in copper sulfide precipitation slag |
-
2013
- 2013-09-22 CN CN201310430270.1A patent/CN103482786A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103755068A (en) * | 2014-01-03 | 2014-04-30 | 上海丰信环保科技有限公司 | Treatment method for high concentration manganese-containing wastewater |
| CN103755067A (en) * | 2014-01-03 | 2014-04-30 | 上海丰信环保科技有限公司 | Treatment method for removing complex nickel out of wastewater |
| CN111470656A (en) * | 2020-04-15 | 2020-07-31 | 河海大学 | Treatment method of organic complex copper-containing wastewater |
| CN113025811A (en) * | 2021-03-05 | 2021-06-25 | 衢州华友钴新材料有限公司 | Deep elution method for chlorine in copper sulfide precipitation slag |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140101 |
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| WD01 | Invention patent application deemed withdrawn after publication |