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Complex strengthen process for removing copper pollution in red soil

A copper-polluted, red soil technology, applied in the field of compound strengthening to effectively remove copper in polluted red soil

Inactive Publication Date: 2005-06-08
INST OF SOIL SCI CHINESE ACAD OF SCI
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  • Abstract
  • Description
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Problems solved by technology

[0009] The purpose of the present invention is to provide a composite strengthening method for removing copper pollution in red soil, which is a composite restoration technology for copper pollution in red soil, which can realize the automatic pH control of the cathode during the electric restoration process, and has a variety of chemical complexes to choose from. Mixture, can effectively improve the removal efficiency of copper, to overcome the above-mentioned shortcoming that exists in the prior art

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  • Complex strengthen process for removing copper pollution in red soil
  • Complex strengthen process for removing copper pollution in red soil
  • Complex strengthen process for removing copper pollution in red soil

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with specific examples.

[0034] The experimental red soil was collected from Yingtan, Jiangxi. The recovered red soil was air-dried and ground to a particle size of 0.84mm. Mix the soil with copper sulfate pentahydrate solution with a copper concentration of about 500mg / kg, then put it in a porcelain container, add water to make it in a flooded state, and cultivate it at room temperature for one month. After cultivating, the red soil is air-dried and sieved , the particle size is 0.25mm, store it for future use. The copper concentration in the cultured red soil was measured to be about 440mg / kg by the aqua regia-perchloric acid digestion method.

[0035] use figure 1In the electric restoration treatment device shown, the cultivated red soil 1 with a particle size of 0.25 mm is put into the electric restoration column 2, and a piece of sintered glass 9 is placed between the soil column, the anode el...

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Abstract

A method for removing the copper pollution in laterite includes such steps as arranging the electrolytic pools at both ends of the polluted laterite region, arranging a processing pool close to each electrolytic pool in order to exchange liquid, inserting electrodes in said electrolytic pools, applying a DC power supply across them, and using an automatic pH control system to control the pH value of cathode pool to be in a certain range.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and relates to a composite strengthening method for removing copper pollution in red soil. Cathodic pool acidity, a composite strengthening method for effective removal of copper in polluted red soil. Background technique [0002] Contaminated soil remediation is a technology that needs to be developed urgently, because soil pollution will cause very serious environmental problems and affect human health and social development. At present, soil remediation technologies include chemical remediation, phytoremediation, and microbial remediation. Although they each have their own characteristics, they also have some shortcomings. Combining multiple remediation technologies is a new hotspot in current soil remediation research. [0003] As one of the chemical remediation methods, electric remediation technology is a clean and efficient contaminated soil treatment technology. It is t...

Claims

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Application Information

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IPC IPC(8): B09C1/08
Inventor 周东美邓昌芬仓龙
Owner INST OF SOIL SCI CHINESE ACAD OF SCI
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