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Method for synchronous treatment of flotation copper sulfide wastewater and acidic organic wastewater

A technology of simultaneous treatment of organic wastewater, applied in the field of environmental pollution control, to achieve the effect of accelerating the degradation rate

Inactive Publication Date: 2018-11-13
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The treatment of this wastewater is also facing huge problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Mix the flotation copper sulfide wastewater with COD of 500.3mg / L and acidic organic wastewater with COD of 350.8mg / L at a ratio of 1:3, adjust the pH to 5, blow in air for aeration, provide oxygen and stir it, and aerate for 4 hours; Add quicklime at an amount of 1.5kg quicklime per ton of water, continue to aerate and stir for 2 hours and then settle; the COD of the effluent is 38.2mg / L, and the supernatant can be discharged.

Embodiment 2

[0019] Mix the flotation copper sulfide wastewater with a COD of 550.2mg / L and the acidic organic wastewater with a COD of 350.8mg / L at a ratio of 1:1, adjust the pH to 3, blow in air for aeration, provide oxygen and stir it, and aerate for 2 hours; Add quicklime at the rate of 1kg quicklime per ton of water, continue to aerate and stir for 1 hour and then settle; the COD of the effluent is 33.8mg / L, and the supernatant can be discharged.

Embodiment 3

[0021] Mix 550.2mg / L flotation copper sulfide wastewater with COD and 386.3mg / L acidic organic wastewater at a ratio of 1:2, adjust the pH to between 4, blow in air for aeration, provide oxygen and use it for stirring, and aerate 3h; Add quicklime at an amount of 1.2kg per ton of water, continue to aerate and stir for 2h before settling; the COD of the effluent is 39.1mg / L, and the supernatant can be discharged.

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PUM

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Abstract

The invention discloses a method for synchronous treatment of flotation copper sulfide wastewater and acidic organic wastewater. The method comprises the following sequential steps: mixing the flotation copper sulfide wastewater and the acidic organic wastewater in a ratio of 1 to (1 to 3); adjusting the pH to 3-5; blowing in air for aeration; supplying oxygen and stirring; aerating for 2-4h; adding quick lime, 1 to 1.5kg of quick lime per each ton of water; further aerating and stirring for 1-2h, and then settling; discharging supernate. The method has the advantages of simplicity, waste utilization, high efficiency and good effect.

Description

technical field [0001] The invention relates to the field of environmental pollution control, in particular to a method for simultaneously treating flotation copper sulfide wastewater and acidic organic wastewater. Background technique [0002] With the development of science and technology, toxic organic pollutants from industrial and agricultural production seriously threaten the environment and human health. It is of great significance to seek a new and efficient environmental governance technology. Water contains a large number of organic pollutants, which affect the ecosystem in the form of toxicity and the reduction of dissolved oxygen in water, and endanger human health. [0003] With the rapid development of industry, the types and quantities of wastewater have increased rapidly, and the pollution of water bodies has become increasingly serious, gradually threatening the safety of human life. Due to the complex composition of industrial wastewater and most of them c...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F103/16
CPCC02F1/725C02F1/5245C02F1/722C02F2103/16
Inventor 吉秋月马建锋王晋
Owner CHANGZHOU UNIV