Device and method for removing polychlorinated biphenyl in bottom mud through microorganism electrolytic tank

A microbial electrolytic cell and polychlorinated biphenyl technology, which is applied in the field of soil remediation, can solve the problems of the structural stability of polychlorinated biphenyls causing harm to human health and the natural environment, and achieves avoiding high costs, high-efficiency power generation capacity, and high-efficiency dehydration. The effect of halogen ability
CN104984994AActive Publication Date: 2015-10-21SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2015-10-21

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Abstract

The invention belongs to the technical field of soil restoration and discloses a device and method for removing polychlorinated biphenyl in bottom mud through a microorganism electrolytic tank. The microorganism electrolytic tank is established, hybrid electrochemical activity bacteria and perchlorate domesticated bacteria are inoculated to an anode chamber, soil polluted by polychlorinated biphenyl is added, a nutrient solution is supplemented to the rest part, the water phase-bottom mud anode chamber is formed, anode potential is controlled to be kept constant through an electrochemical work station, growth and propagation of the hybrid electrochemical activity bacteria and the perchlorate domesticated bacteria can be promoted, dechloridation efficiency can be greatly improved, and constant bioelectric currents can be generated. By the adoption of the device and method, natural restoration and toxicity reduction can be conducted on the polluted soil, and good environmental protection benefits are achieved.
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Description

technical field

[0001] The invention belongs to the technical field of soil remediation, and in particular relates to a device and a method for removing polychlorinated biphenyls in sediment by using a microbial electrolytic cell. Background technique

[0002] Due to its excellent physical and chemical properties such as thermodynamic stability, chemical inertness, non-flammability, and high electrical conductivity, PCBs have been widely used in industrial production. In the mid-1960s, the annual output of PCBs in the world was about Since the 1970s, my country's annual output of PCBs has been close to 10,000 tons. As a typical persistent organic pollutant, the potential toxicity and structural stability of polychlorinated biphenyls have brought serious harm to human health and the natural environment. Therefore, it is urgent to find an effective method to remediate contaminated soil. The current removal methods for PCBs include traditional degradation methods and emerging d...

Claims

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