Bioremediation of soil Contaminated with PetroleumUsing Forced-Aeration CompostingEnglish Full Text

DING KEQIANG1,2, LUO YONGMING2, SUN TIEHENG1 and LI PEIJUN11Institute of Applied Ecology, the Chinese Academy of Sciences, Shenyang 110015 (China)2Laboratory of Material Cycling in Pedosphere, Institute of Soil Science, the Chinese Academy of Sciences,Nan

Abstract: Laboratory simulation studies and a composting pilot study were conducted to evaluate the capacityof three strains of fungi, indigenous fungus Fusarium sp. and Phanerochaete chrysosporium and CoriolusVersicolor, to remediate petroleum- contaminated soils. In laboratory, the fungi were inoculated into a liquidculture medium and the petroleum-contaminated soil samples for incubation of 40 and 50 days 5 respectively.In the 200-day pilot study, nutrient contents and moisture were adjusted and maintained under aerobiccondition in composting units using concrete container （118.5 cm × 65.5 cm × 12.5 cm） designed speciallyfor this study. The laboratory simulation results showed that all the three fungi were effective in degradingpetroleum in the liquid culture medium and in the soil. At the end of both the laboratory incubations, thedegradation rates by Phanerochaete chrysosporium were the highest, reaching 66% after incubation in liquidculture for 50 days. This was further demonstrated in the composting pilot study where the degradationrate by P. chrysosporium reached 79% within 200 days, higher than those of the other two fungi （53.1% and46.1%）, indicating that P. chrysosporium was the best fungus for bioremediation of soil contaminated withpetroleum. Further research is required to increase degradation rate.

Keywords：

bioremediation, composting fungi，petroleum; soil;

Series：
(D) Agriculture; (B) Chemistry/ Metallurgy/ Environment/ Mine Industry
Subject：
Environment Science and Resources Utilization
Classification Code：
X53

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Bioremediation of soil Contaminated with PetroleumUsing Forced-Aeration CompostingEnglish Full Text

DING KEQIANG1,2, LUO YONGMING2, SUN TIEHENG1 and LI PEIJUN11Institute of Applied Ecology, the Chinese Academy of Sciences, Shenyang 110015 (China)2Laboratory of Material Cycling in Pedosphere, Institute of Soil Science, the Chinese Academy of Sciences,Nan

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