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Copper ion treatment method

A treatment method and technology for copper ions, applied in the field of copper ion treatment, can solve problems such as poor copper ion effect, and achieve the effects of low equipment requirements, controllable treatment process, and good electro-adsorption effect.

Active Publication Date: 2022-02-08
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the problem of poor effect of removing copper ions by electrosorption in the prior art, the purpose of the present invention is to provide a copper ion treatment method with good copper ion removal effect

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The preparation method of mesoporous carbon material is as follows:

[0060] Add 45g of resorcinol and 18.75g of block polyether F127 into 300mL of 50wt% ethanol solution, stir for 15min, add 1.56g of 1,6 hexamethylenediamine and continue stirring for 45min, then add 61.5mL of 37wt% formaldehyde solution and stir for 20min Finally, the mixture was put into a container and cured in an oven at 50°C for 20 hours, 60°C for 28 hours, and 100°C for 3 hours to obtain a solid reactant phenolic resin. Put the solid reactant into a tube furnace, raise the temperature to 1000°C at a rate of 2°C / min under an Ar atmosphere of 300mL / min, and carbonize it for 2 hours to obtain a mesoporous carbon material for electroadsorption of copper ions. The physical picture of carbon material is as follows figure 1 shown.

Embodiment 2

[0064] Use 1.0565g of mesoporous carbon material as the adsorbent, select the copper nitrate solution with an initial concentration of 200mg / L as the adsorption solution, and start the adsorption under the condition that the solution flow rate is 2mL / min, the initial pH value is 5.2, and there is no voltage Experiments to remove copper ions. After 2 hours of adsorption, the concentration change of the copper nitrate solution was measured by a conductivity meter, and the analysis results showed that the electrosorption amount of the copper nitrate solution was 7.46 mg / g.

Embodiment 3

[0066] 0.9998g of mesoporous carbon material was used as the adsorbent, and copper nitrate solution with an initial concentration of 200mg / L was selected as the adsorption solution. Under the condition that the solution flow rate was 2mL / min, the initial pH value was 5.2, and a voltage of 0.5V was applied, start Experiments were carried out to remove copper ions by electrosorption. After 2 hours of adsorption, the concentration change of the copper nitrate solution was measured by a conductivity meter, and the analysis results showed that the electrosorption amount of the copper nitrate solution was 68.85 mg / g.

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Abstract

The invention discloses a copper ion treatment method. The method comprises the following step: treating a copper ion solution by adopting an electro-adsorption device, wherein a mesoporous carbon material is filled between the positive electrode and the negative electrode of the electro-adsorption device. Raw materials required by electro-adsorption are wide in source and low in price, the treatment process is controllable, and large-scale preparation of products is easy to achieve.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a method for treating copper ions. Background technique [0002] Copper ions (Cu 2+ ) is a common pollutant in industrial wastewater such as electroplating, printed circuit boards, and semiconductors. Copper is an essential trace element for the human body. However, an excess of copper in the body can lead to various diseases, and when humans consume more than the maximum, copper can cause irreparable damage to the eyes, liver, and central nervous system, leading to Alzheimer's and Parkinson's diseases ,even death. But on the other hand, copper is also an important industrial raw material, and it is valuable to remove and recover copper from water. [0003] Various techniques including chemical precipitation, membrane separation, electrodeposition, ion exchange, cementation, and adsorption have been used to remove Cu from wastewater 2+ , adsorption is one...

Claims

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Application Information

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IPC IPC(8): C02F1/469C02F1/28C02F101/20
CPCC02F1/4691C02F1/283C02F2101/20C02F2209/05Y02P10/20
Inventor 余皓蒋梦瑶曹永海黄江南王红娟彭峰
Owner SOUTH CHINA UNIV OF TECH
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