Insight into the Modulation of Dissolved Organic Matter on Microbial Remediation of PAH-Contaminated Soils
Xue-Mei Han, Yu-Rong Liu, Li-Mei Zhang, Ji-Zheng He
MICROBIAL ECOLOGY | SPRINGER | Published : 2015
Microorganisms play a key role in degradation of polycyclic aromatic hydrocarbons (PAHs) in environments. Dissolved organic matter (DOM) can enhance microbial degradation of PAHs in soils. However, it is not clear how will the soil microbial community respond to addition of DOM during bioremediation of PAH-contaminated soils. In this study, DOMs derived from various agricultural wastes were applied to remediate the aging PAH-contaminated soils in a 90-day microcosm experiment. Results showed that the addition of DOMs offered a more efficient and persistent elimination of soil PAHs compared to the control which had no DOM addition. PAH removal effects were different among treatments with vari..View full abstract
Awarded by Natural Science Foundation of China
This study was financially supported by the Natural Science Foundation of China (41301567, 51221892, 21207049) and the International Cooperation Training Project Funding for Outstanding Middle-aged and Young Backbone Teachers in Colleges and Universities of Shandong Province. We are grateful to Dr. Qinzeng Xu of Institute of Oceanology, Chinese Academy of Sciences, for his assistance in data analysis.