CN103482788A - Method for adding chemicals for treatment of high-concentration copper-containing wastewater - Google Patents
Method for adding chemicals for treatment of high-concentration copper-containing wastewater Download PDFInfo
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- CN103482788A CN103482788A CN201310431082.0A CN201310431082A CN103482788A CN 103482788 A CN103482788 A CN 103482788A CN 201310431082 A CN201310431082 A CN 201310431082A CN 103482788 A CN103482788 A CN 103482788A
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Abstract
The invention relates to a method for adding chemicals for treatment of high-concentration copper-containing wastewater. The method comprises the following steps: firstly, adding sodium hydroxide for regulating the pH value of wastewater to achieve 11.0; adding 100 ppm PAC (poly aluminum chloride), stirring for 2-5 minutes, adding 50 ppm trithiocyanuric acid trisodium salt and stirring for 2-5 minutes; finally, adding 3 ppm anions, stirring for 10-20 minutes, settling for 10-20 minutes, filtering, and measuring the copper content of the filtered wastewater. The method has the benefits as follows: the sodium hydroxide is firstly added for regulating the pH value of the wastewater to achieve 11.0, then the PAC and the trithiocyanuric acid trisodium salt are added and the stirring is performed, and finally the anions are added, the thorough stirring is performed and the copper content of the filtered wastewater is measured, so that the chemical adding sequence is strictly specified, the adding dosage of the chemicals is reduced, the resource and the cost are saved, and no secondary pollution is caused.
Description
Technical field
The present invention relates to wastewater processing technology, relate in particular to a kind of adding of agent method of processing high-concentration copper-containing waste water.
Background technology
Along with smelting, metal-processing industry, machine building, organic synthesis and other industrial expansions, the wastewater flow rate that industrial production is discharged is also continuing to increase, and the content of copper ion in waste water is also rising steadily.Copper-containing wastewater is very harmful to animal, plant and the mankind's, uses the copper-containing wastewater irrigated farmland, and cupric ion will be fixed in plant root, affect nutrition absorption, has 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 recent years, domestic and international many scholars start to be devoted to the research of the Pollution abatement technology of copper-containing wastewater, and it is a lot of to have the factor that affects the waste water copper removal now, added amount of chemical, adding of agent order, quick low rate mixing time, temperature, pH value etc. all can exert an influence to the waste water copper removal, but a lot of enterprises remove copper by adding more medicine, waste so very much resource, increase cost, also can produce secondary pollution.Thereby, need to effectively innovate prior art.
Summary of the invention
For above defect, the adding of agent method that the invention provides and a kind ofly strictly regulate adding of agent order, can reduce added amount of chemical, economize on resources with the processing high-concentration copper-containing waste water of cost, non-secondary pollution, 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 of adding of agent method of processing high-concentration copper-containing waste water, the steps include:
(1) first add sodium hydroxide to regulate wastewater pH to 11.0;
(2) add again the PAC polymerize aluminum chloride of 100ppm to stir 2-5 minute;
(3) then, add the trithiocyanuric acid trisodium salt of 50ppm to stir 2-5 minute;
(4) last, add the negatively charged ion of 3ppm to stir 10-20 minute, precipitation 10-20 minute, filter, copper content in water after the survey filtration.
Correspondingly also can, carry out step (1) after, can first add the trithiocyanuric acid trisodium salt to stir 2-5 minute, then, add the PAC polymerize aluminum chloride to stir 2-5 minute, then carry out step (4); Wherein, the trithiocyanuric acid trisodium salt first added is 50ppm, and the PAC polymerize aluminum chloride added is 100 ppm.
The beneficial effect of the adding of agent method of processing high-concentration copper-containing waste water of the present invention is: by first adding sodium hydroxide, regulate wastewater pH to 11.0, then add 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 strictly regulated the adding of agent order, can reduce added amount of chemical, is economized on resources and cost, non-secondary pollution.
Embodiment
embodiment 1
The adding of agent method of the described processing high-concentration copper-containing of embodiment of the present invention waste water mainly is comprised of following steps:
(1) first add sodium hydroxide to regulate wastewater pH to 11.0;
(2) add again the PAC polymerize aluminum chloride of 100ppm to stir 2-5 minute;
(3) then, add the trithiocyanuric acid trisodium salt of 50ppm to stir 2-5 minute;
(4) last, add the negatively charged ion of 3ppm 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 sodium hydroxide to regulate wastewater pH to 11.0;
(2) add again the trithiocyanuric acid trisodium salt of 50ppm to stir 2-5 minute;
(3) then, add the PAC polymerize aluminum chloride of 100ppm to stir 2-5 minute;
(4) last, add the negatively charged ion of 3ppm 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. an adding of agent method of processing high-concentration copper-containing waste water, is characterized in that, the steps include:
(1) first add sodium hydroxide to regulate wastewater pH to 11.0;
(2) add again the PAC polymerize aluminum chloride of 100ppm to stir 2-5 minute;
(3) then, add the trithiocyanuric acid trisodium salt of 50ppm to stir 2-5 minute;
(4) last, add the negatively charged ion of 3ppm to stir 10-20 minute, precipitation 10-20 minute, filter, copper content in water after the survey filtration.
2. the adding of agent method of processing high-concentration copper-containing waste water according to claim 1, it is characterized in that: carry out step (1) after, can first add the trithiocyanuric acid trisodium salt to stir 2-5 minute, then, add the PAC polymerize aluminum chloride to stir 2-5 minute, then carry out step (4).
3. the adding of agent method of processing high-concentration copper-containing waste water according to claim 2, it is characterized in that: the trithiocyanuric acid trisodium salt first added is 50ppm, the PAC polymerize aluminum chloride added is 100 ppm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310431082.0A CN103482788A (en) | 2013-09-22 | 2013-09-22 | Method for adding chemicals for treatment of high-concentration copper-containing wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310431082.0A CN103482788A (en) | 2013-09-22 | 2013-09-22 | Method for adding chemicals for treatment of high-concentration copper-containing wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103482788A true CN103482788A (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310431082.0A Pending CN103482788A (en) | 2013-09-22 | 2013-09-22 | Method for adding chemicals for treatment of high-concentration copper-containing wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103482788A (en) |
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2013
- 2013-09-22 CN CN201310431082.0A patent/CN103482788A/en active Pending
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140101 |
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| WD01 | Invention patent application deemed withdrawn after publication |