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Fast treating method for copper mine waste water

A treatment method and technology for copper mine wastewater, applied in mining wastewater treatment, multi-stage water treatment, water/sewage treatment, etc., can solve problems such as waste of water resources, pollution of surrounding water environment, etc., achieve reduction of copper content, cheap raw materials, Practical effect

Inactive Publication Date: 2017-02-22
吴小慧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current simple neutralization treatment or sulfide precipitation methods can no longer meet the increasingly stringent environmental protection requirements for the treatment of copper mine wastewater, which not only wastes a lot of water resources, but also pollutes the surrounding water environment

Method used

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  • Fast treating method for copper mine waste water

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Experimental program
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Effect test

Embodiment 1

[0021] 1) Add alkaline white mud to the waste water, stir and react at 35°C for 20 minutes, filter after standing for precipitation, and then add a purifying agent in an amount of 35 mg / L. The purifying agent is composed of: 25 parts of polyaluminum chloride, 20 parts of potassium ferrate, 20 parts of dimethyl diallyl ammonium chloride, 15 parts of potassium feldspar, 10 parts of bis-succinimide, 10 parts of quartz sand, 8 parts of polyacrylamide, diethylenetriaminepenta 5 parts of methylene phosphonic acid, 5 parts of urea, 2 parts of citric acid and 20 parts of activated sludge were stirred for 30 minutes at a speed of 15 rpm, left to stand for 3 hours, and the waste water was stratified into supernatant and solid precipitation;

[0022] 2) Send the supernatant to the deep oxidation tower, adjust the pH of the supernatant to 2, aerate evenly, add oxidants, carry out deep oxidation, and measure the water quality indicators in real time. When the concentration of heavy metals i...

Embodiment 2

[0029] 1) Add alkaline white mud to the waste water, stir and react at 55°C for 35 minutes, filter after standing for precipitation, and then add a purifying agent in an amount of 35 mg / L. The purifying agent consists of: 30 parts of polyaluminum chloride, 25 parts of potassium ferrate, 25 parts of dimethyl diallyl ammonium chloride, 20 parts of potassium feldspar, 15 parts of bis-succinimide, 13 parts of quartz sand, 10 parts of polyacrylamide, diethylenetriaminepenta 7 parts of methylene phosphonic acid, 8 parts of urea, 4 parts of citric acid, and 25 parts of activated sludge were stirred for 40 minutes at a speed of 25 rpm, left to stand for 3.5 hours, and the waste water was stratified into supernatant and solid precipitation;

[0030] 2) Send the supernatant to the deep oxidation tower, adjust the pH of the supernatant to 2.5, aerate evenly, add oxidants, carry out deep oxidation, and measure the water quality indicators in real time. When the concentration of heavy metal...

Embodiment 3

[0037] 1) Add alkaline white mud to the waste water, stir and react at 70°C for 50 minutes, let it sit for precipitation and then filter, then add a purifying agent in an amount of 35 mg / L. The purifying agent consists of: 35 parts of polyaluminum chloride, 30 parts of potassium ferrate, 30 parts of dimethyl diallyl ammonium chloride, 25 parts of potassium feldspar, 20 parts of bis-succinimide, 15 parts of quartz sand, 12 parts of polyacrylamide, diethylenetriaminepenta 10 parts of methylene phosphonic acid, 10 parts of urea, 5 parts of citric acid, and 30 parts of activated sludge were stirred for 50 minutes at a speed of 30 rpm, left to stand for 4 hours, and the waste water was stratified into supernatant and solid precipitation;

[0038] 2) Send the supernatant to the deep oxidation tower, adjust the pH of the supernatant to 3, aerate evenly, add oxidants, carry out deep oxidation, and measure the water quality indicators in real time. When the concentration of heavy metals...

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Abstract

The invention discloses a fast treating method for copper mine waste water. A mixture composed of poly aluminium chloride, potassium ferrate, dimethyl diallyl ammonium chloride, potassium feldspar, bissuccinimide, quartz sand, polyacrylamide, diethylenetriaminepenta acid, urea, citric acid and activated sludge is adopted as a cleaning agent, matched with a flocculating agent with polyferric sulfate, bentonite, zeolite powder, ethoxylated lauryl alcohol sulfate and alum as constituents, and assisted with technologies of deep oxidation, flocculation, ultrasound, resin adsorption, filtration, sterilization, membrane separation and the like, therefore, the copper content and the COD value in the copper mine waste water are effectively reduced, industrial requirements can be met, and the method has a good application prospect.

Description

technical field [0001] The invention relates to a treatment method for industrial waste water, in particular to a treatment method for copper mine waste water. Background technique [0002] In recent years, with the rapid growth of the demand for copper in the world, the intensity of copper mining has been continuously strengthened, and more and more pollutants have been discharged in the process of copper mining, and the harm to the ecological environment has become more and more serious. Among these pollutants, copper mine wastewater has the widest range of pollution and the greatest degree of harm. Copper mine wastewater mainly comes from copper mining and beneficiation processes. It has the characteristics of large discharge, strong discharge continuity, many types of pollutants, great harm, and difficult control. It is a very difficult wastewater to treat. According to relevant regulations, the total copper discharge in water pollutants of existing enterprises must be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08C02F103/10
CPCC02F1/001C02F1/285C02F1/36C02F1/44C02F1/50C02F1/52C02F1/72C02F9/00C02F2103/10C02F2301/08
Inventor 吴小慧
Owner 吴小慧
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