TITLE

Microbial degradation of soil polycyclic aromatic hydrocarbons (PAHs) and its relations to soil bacterial population diversity

AUTHOR(S)
Wang Fei; Su Zhen-cheng; Yang Hui; Li Xiao-jun; Yang Guan-pin; Dong Dian-bo
PUB. DATE
December 2009
SOURCE
Yingyong Shengtai Xuebao;Dec2009, Vol. 20 Issue 12, p3020
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A laboratory simulation test was conducted to study the microbial remediation of soils contaminated by medium and low concentration polycyclic aromatic hydrocarbons (PAHs), and the relationships between the degradation of PAHs and the inoculated and indigenous microbes. The addition of high-effective PAHs-degrading bacteria promoted the biodegradation of soil PAHs, and the effect was remarkable in the first two weeks. The biodegradation of test PAHs was phenanthrene < anthracene < pyrene < benzo [a] pyrene < chrysene, and negatively correlated with the diversity/abundance of soil bacterial population. In the same treatments, soil bacterial population structure varied less with time, and hence, to increase the activity of indigenous microbes would be an effective way to remediate the farmland soils contaminated by medium and low concentration PAHs.
ACCESSION #
52527350

Tags: SOIL microbiology;  SOIL remediation;  BIODEGRADATION;  SOIL pollution;  SOIL testing;  POLYCYCLIC aromatic hydrocarbons;  CORRELATION (Statistics);  SIMULATION methods & models

 

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