土壤残油生物降解性与微生物活性

李广贺; 张旭; 卢晓霞

Volume 27 Issue 2

Mar. 2002

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LI Guang-he, ZHANG Xu, LU Xiao-xia, 2002. Biodegradation of Residual Petrochemicals and Microbial Activities in Polluted Soil. Earth Science, 27(2): 181-185.

Citation:

LI Guang-he, ZHANG Xu, LU Xiao-xia, 2002. Biodegradation of Residual Petrochemicals and Microbial Activities in Polluted Soil. Earth Science, 27(2): 181-185.

LI Guang-he, ZHANG Xu, LU Xiao-xia, 2002. Biodegradation of Residual Petrochemicals and Microbial Activities in Polluted Soil. Earth Science, 27(2): 181-185.

Citation:

LI Guang-he, ZHANG Xu, LU Xiao-xia, 2002. Biodegradation of Residual Petrochemicals and Microbial Activities in Polluted Soil. Earth Science, 27(2): 181-185.

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Biodegradation of Residual Petrochemicals and Microbial Activities in Polluted Soil

Department of Environmental Science & Engineering, Tsinghua University, Beijing 100084, China

Received Date: 2001-11-12
Publish Date: 2002-03-25

Abstract

Abstract

The components of the residual petrochemicals, variation of the microbe dehydrogenase activities and screening hydrocarbon degrading bacteria in the polluted soil of Zihe valley were measured by GC/MS, column chromatography, turbidity and microbe dehydrogenase methods. The experimental results indicate that petroleum carbons in the soil are composed of colloid and pitchy compounds accounting for 60%~80% of total petroleum carbons, which may limit the biodegradation of petrochemicals. It was proved that after 90 days the biodegradation rate of the petrochemicals was only 20%. The major types of the degrading bacteria in the polluted soil are cocci, or short and long bacilli based on the degradation experiments of naphthalene and liquid paraffin. Xanthomonas, Bacillus and a species thought to be Hyphomicrobium are identified to have high activity in the experiments. The pilot studies present that the microbe dehydrogenase can be used as index of the microbe activities for the biodegradation of petrochemicals.
- residual petrochemicals,
- biodegradation,
- microbial dehydrogenase.

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References(10)

References

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