Remediation device and method for organic matter and heavy metal combined polluted soil

A compound pollution and heavy metal technology, applied in the restoration of polluted soil, energy and wastewater treatment, etc., can solve the problems of cumbersome engineering, lack of universal applicability, and complicated equipment, and achieve the effect of flexible operation, low cost, and resource saving

Active Publication Date: 2021-12-31
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device combines the three technologies of EK-Bio-PRB to solve the technical problem of in-situ removal

Method used

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  • Remediation device and method for organic matter and heavy metal combined polluted soil
  • Remediation device and method for organic matter and heavy metal combined polluted soil
  • Remediation device and method for organic matter and heavy metal combined polluted soil

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Embodiment Construction

[0063] The purpose of the present invention is to provide a preparation of iron-carbon micro-electrolysis material, and apply it to the osmotic reaction column, combined with electrodynamic repair technology, to make a repair device for organic matter and heavy metal compound polluted soil, including electrolysis chamber box 2 , anodic electrolytic column 3, cathodic electrolytic column 4, osmotic reaction column 5, solar power generation system 6 and rinsing and spraying system 7.

[0064] The box body 2 of the electrolytic box is a cubic structure, which is divided into upper and lower parts, the upper part is a repair room, and the lower part is a permeation room.

[0065] The repair chamber is a hollow body surrounded by four sides, and the four vertical edges of the hollow body have four solid positioning cylinders 2-1 extending downward. When the repair is in progress, the soil to be repaired is loaded into the repair chamber. The four horizontal edges on the top of the...

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Abstract

The invention discloses a remediation device and method for organic matter and heavy metal combined contaminated soil, and belongs to the technical field of environmental protection and soil remediation. The remediation device comprises an electrolysis tank, an anode electrolysis column, a cathode electrolysis column, an osmotic reaction column, a solar power generation system and a leaching and spraying system. According to the invention, the osmotic reaction column is filled with an electrolytic material and is combined with electrokinetic remediation, so that organic matter in the soil can be effectively removed. A hollow cylinder structure is adopted for assembling and disassembling, and assembling and disassembling are easy and convenient. A leaching and spraying system is independent of an electrolysis tank body, operation is flexible, electrolyte is recycled, and resources are saved. In the treatment process, the concentration of the pollutants is continuously reduced by replacing a filter element and the osmotic reaction column, the pollutants can be thoroughly treated at one time, only electrolytic materials of the filter element layer and the reaction column need to be treated after treatment is finished, and secondary pollution is avoided. The defect that organic matter and heavy metal pollutants in the soil cannot be treated at one time by conventional electrokinetic remediation is overcome.

Description

technical field [0001] This application belongs to the technical field of environmental protection and soil treatment, and relates to a repair device for polluted soil. Specifically, the application relates to a repair device for compound polluted soil with organic matter and heavy metals, which is prepared by preparing iron-carbon micro-electrolytic materials and combined with electric repair. . Background technique [0002] Electrokinetic repair technology (EK) is under the action of electric field force, through electromigration, electrophoresis, electrodialysis, etc., the pollutant ions are migrated and enriched near the cathode or anode, so as to reduce the polluted area and improve the environment. Electric remediation is considered to be a potential soil remediation technology due to its wide application range, high economic benefits, and in-situ remediation. The permeable reactive wall (PRB) is to establish a permeable reaction zone, and use the filling material to ...

Claims

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Application Information

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IPC IPC(8): B09C1/02B09C1/08
CPCB09C1/02B09C1/085Y02W10/37
Inventor 季伟伟万玉山
Owner CHANGZHOU UNIV
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