A polyhalogenated aromatic hydrocarbon degrading bacteria and its application
A technology for the degradation of halogenated aromatic hydrocarbons and bacteria, which is applied in the direction of bacteria, microorganisms, and methods based on microorganisms. It can solve the problems of limited degradation ability and achieve easy aerobic mineralization degradation, anaerobic dehalogenation and aerobic mineralization metabolism. Effect of Enhanced Degradability
Active Publication Date: 2022-05-31
SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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Problems solved by technology
However, whether it is microbial remediation technology or electrodynamic remediation technology, as a single remediation technology, its sustainable and effective degradation ability is still relatively limited.
Existing research and development of halogenated hydrocarbon-degrading bacteria suitable for electric field conditions is still relatively small, especially for relatively high electric field conditions, suitable for a wide range of pH environments, and electrokinetic enhancement under both aerobic and anaerobic conditions The specific facultative degrading bacteria have not been reported
Method used
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Effect test
Embodiment 1
The total processing cycle of the voltage gradient is still 1h, when the maximum design voltage gradient of 5V / cm is reached, the voltage of 0.5V / cm is restarted
Gradient treatment was carried out in cycles, and the total electric stimulation acclimation period was 120h.
Table 1
[0038]
Acclimate condition 0.5~2V / cm2~5V / cm Voltage gradient change Reverse polar cycle Total acclimation cycle
Period parameter 1h1h0.5V / cm10min120h
Embodiment 2
[0048]
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The invention belongs to the technical field of halogenated hydrocarbon-contaminated soil remediation, and in particular relates to a polyhalogenated aromatic hydrocarbon-degrading bacterium and its application in remediating polluted soil. The polyhalogenated aromatic hydrocarbon-degrading bacterium Acinetobacter sp. JWDH2‑5 was deposited in the China Center for Type Culture Collection on April 9, 2021, and its registration number is CCTCC NO: M 2021319. The polyhalogenated aromatic hydrocarbon degrading bacteria Acinetobacter sp. JWDH2-5 provided by the present invention can perform anaerobic and aerobic biological metabolic degradation of polyhalogenated aromatic hydrocarbons, and has good electrokinetic performance against polyhalogenated aromatic hydrocarbon-contaminated soils. Enhanced application potential in microbial remediation systems.
Description
A kind of polyhalogenated aromatic hydrocarbon degrading bacteria and its application technical field The invention belongs to halogenated hydrocarbon contaminated soil remediation technical field, be specifically related to a kind of polyhalogenated aromatic hydrocarbon degrading bacteria and its Application in remediation of polluted soil. Background technique [0002] Industrial development has brought continuous impetus to social and economic growth, but at the same time, the early relatively extensive industrial The model also has a negative impact on the ecological environment of the development area, various power fuels, medical pharmacy, antibiotic production, During the product preparation process of flame retardant production, pesticide production and other factories, due to product loading and unloading leakage, pipeline transportation accidents, Unreasonable discharge of by-products and illegal storage, etc., cause the soil in and around the plant to be exp...
Claims
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IPC IPC(8): C12N1/20B09C1/10C12R1/01
CPCC12N1/20B09C1/10Y02W10/10
Inventor 王卅郭书海吴波程凤莲荆佳维
Owner SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI