Bioremediation of petroleum-contaminated soil and its relationship with soil enzyme activities

Abstract

Abstract: This paper studied the variations of catalase(CAT),polyphenol oxidase(PPO) and lipase in soils contaminated by different concentration oil after bio-remedied for two durations of 125 days.The results showed that the activities of CAT and PPO in the soils were decreased,while that of lipase was increased with increasing oil concentration.After the second duration of remediation,the activities of soil CAT and PPO were higher than those after the first remediation duration,while that of lipase was in inverse.The activities of these three enzymes were not significantly affected by oil concentration,but the bioremediation of soil contaminated by different concentration oil had more significant effect on CAT than on PPO and lipase.

Key words: Dryocosmus kuriphilus, Cecidum, Occurrence quantity, Chestnut, Natural enemy

CLC Number:

X171.5

LIN Xin, LI Peijun, SUN Tieheng, TAI Peidong, GONG Zongqiang, ZHANG Hairong. Bioremediation of petroleum-contaminated soil and its relationship with soil enzyme activities[J]. cje, 2005, (10): 1226-1229.

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