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Comprehensive utilization method of copper-containing wastewater

A technology for wastewater and copper sulfate, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve the problem of comprehensive utilization of copper-containing wastewater, etc., to improve the comprehensive utilization level of resource recovery and solve two problems. The effect of secondary sewage and low cost

Inactive Publication Date: 2019-06-07
HUNAN FORLONG ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The treatment technology of copper-containing wastewater is relatively mature, generally limited to the removal and recycling of copper in wastewater, and there is inevitably the problem of secondary discharge of wastewater
In addition, there is no report on the comprehensive utilization of copper-containing wastewater without discharging wastewater

Method used

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  • Comprehensive utilization method of copper-containing wastewater

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Experimental program
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Effect test

Embodiment 1

[0018] See figure 1 , put the copper sulfate wastewater containing 5 grams / liter of copper into the closed electrolytic cell 1, add 60 grams / liter of ammonium sulfate according to the volume of the electrolytic cell, and the cathode 2 in the electrolytic cell 1 adopts an ordinary iron plate, and the anode 3 A titanium plate is used to electrically connect the scrap iron installed in the plastic basket 4. After electrification, the electrolytic voltage of the electrolytic cell is maintained at 1 volt, so that copper ions are deposited on the cathode 2 to form a copper electrode with a copper coating. After the deposition is completed, hydrogen begins to separate out, and ferric hydroxide precipitate is formed at the bottom of the tank; when the water consumption reduces the liquid level by 10-20 cm, new waste water is added from the liquid addition pipe 6, and there is no need to add ammonium sulfate, and the water is consumed in a cycle. , the hydrogen can be collected from th...

Embodiment 2

[0026] Put the copper sulfate waste water containing copper 0.01 gram / liter into the closed electrolyzer 1, the consumption of ammonium sulfate adds 10 grams / every liter by electrolyzer volume, the electrolysis voltage of electrolyzer is 0.5 volts, other is identical with embodiment 1 .

Embodiment 3

[0028] Put the copper sulfate waste water containing 100 grams / liter of copper into the closed electrolytic cell 1, the consumption of ammonium sulfate adds 30 grams / per liter by the electrolytic cell volume, and the electrolytic voltage of the electrolytic cell is 1.8 volts, and the others are the same as in Example 1. .

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Abstract

The invention discloses a comprehensive utilization method of copper-containing wastewater. The method comprises the following steps: copper sulfate wastewater is put into a closed electrolytic cell,and ammonium sulfate is added for electrolysis, wherein a cathode and an anode in the electrolytic cell are both made of an iron material; after electrifying is carried out, copper ions are depositedon the cathode to form a copper electrode with a copper coating layer; when the copper in the wastewater is completely deposited, hydrogen starts to be separated out, and a ferric hydroxide precipitate is formed at the bottom of the cell; and new wastewater is supplemented according to the water consumption condition, wherein water is consumed circularly. According to the method disclosed by the invention, the copper-containing wastewater can be continuously added into the electrolytic cell, and hydrogen, deposited copper and ferric hydroxide are obtained. The wastewater is added, high-value products are generated, and wastewater is not discharged, so that the resource recycling level can be improved, and the problem of secondary pollution discharge is effectively solved.

Description

technical field [0001] The invention belongs to a method for treating copper-containing wastewater, in particular to a comprehensive utilization method for copper-containing wastewater. Background technique [0002] The treatment technology of copper-containing wastewater is relatively mature, generally limited to the removal and recycling of copper in wastewater, and the problem of secondary discharge of wastewater is inevitable. In addition, there is no report on the comprehensive utilization of copper-containing wastewater without the discharge of wastewater. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a comprehensive utilization method of copper-containing wastewater, so as to improve the level of resource recovery and utilization, and effectively solve the problem of secondary pollution. [0004] The technical scheme adopted to realize the purpose of the present invention is as follows: [0005] The comprehensive utilization ...

Claims

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Application Information

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IPC IPC(8): C02F1/461C02F101/20
Inventor 郑日升
Owner HUNAN FORLONG ADVANCED MATERIALS CO LTD