FUNDAMENTAL STUDY OF DEGRADATION OF DICHLORODIPHENYLTRICHLOROETHANE IN SOIL BY LACCASE FROM WHITE ROT FUNGI

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ZHAO Y.C.; YI X.Y.; ZHANG M.; LIU L.; MA W.J.

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Journal: INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST) Year:2010 | Volume:7 | Issue:2 (26) Page(s): 359-366

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Title

FUNDAMENTAL STUDY OF DEGRADATION OF DICHLORODIPHENYLTRICHLOROETHANE IN SOIL BY LACCASE FROM WHITE ROT FUNGI

Author(s)

Keywords

BIOREMEDIATION

ENZYME

HALF-LIFE

ORGANOCHLORINE PESTICIDE

RESIDUE

Abstract

This research describes application of laccase from white-rot fungi (polyporus) to remove dichlorodiphenyltrichloroethane in soil. The degradation kinetics of dichlorodiphenyltrichloroethane in soil was also investigated by laboratory batch experiments. The results showed that laccase from white-rot fungi can effectively degrade dichlorodiphenyltrichloroethane and the degradation of total dichlorodiphenyltrichloroethane (the sum of the four dichlorodiphenyltrichloroethane compounds in a sample) was pseudo-first-order kinetics. The RESIDUEs of almost all the dichlorodiphenyltrichloroethane components and total dichlorodiphenyltrichloroethane in soils treated with laccase decreased rapidly during first 15 days and then kept at a stable level during next 10 days. The RESIDUEs of total dichlorodiphenyltrichloroethane in soils with different dosages laccase decreased by about 21-32 %, 29-45%, 35-51 % and 36-51 % after 5, 10, 15 and 25 days of incubation, respectively. The HALF-LIFE of total dichlorodiphenyltrichloroethane in soils with different dosages laccase ranged from 24.75 to 41.75 days. The RESIDUEs of total dichlorodiphenyltrichloroethane in three different types of soils decreased by 25-29 %, 39-43 %, 44-47 % and 47-52 % after 5, 10, 15 and 25 days of incubation with laccase, respectively. The HALF-LIFE of total dichlorodiphenyltrichloroethane in different types of soil ranged from 24.71 to 27.68 days. The RESIDUEs of total dichlorodiphenyltrichloroethane in soils with different pH levels decreased by 18-24 %, 29-39 %, 36-39 % and 39-50% after 5, 10, 15 and 25 days of incubation with laccase, respectively. The HALF-LIFE of total dichlorodiphenyltrichloroethane ranged from 25.63 to 36.42 days. Laccase can be an efficient and safe agent for remediation of dichlorodiphenyltrichloroethane-contaminated soil.

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APA: Copy

ZHAO, Y.C., YI, X.Y., ZHANG, M., LIU, L., & MA, W.J.. (2010). FUNDAMENTAL STUDY OF DEGRADATION OF DICHLORODIPHENYLTRICHLOROETHANE IN SOIL BY LACCASE FROM WHITE ROT FUNGI. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), 7(2 (26)), 359-366. SID. https://sid.ir/paper/285241/en

Vancouver: Copy

ZHAO Y.C., YI X.Y., ZHANG M., LIU L., MA W.J.. FUNDAMENTAL STUDY OF DEGRADATION OF DICHLORODIPHENYLTRICHLOROETHANE IN SOIL BY LACCASE FROM WHITE ROT FUNGI. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST)[Internet]. 2010;7(2 (26)):359-366. Available from: https://sid.ir/paper/285241/en

IEEE: Copy

Y.C. ZHAO, X.Y. YI, M. ZHANG, L. LIU, and W.J. MA, “FUNDAMENTAL STUDY OF DEGRADATION OF DICHLORODIPHENYLTRICHLOROETHANE IN SOIL BY LACCASE FROM WHITE ROT FUNGI,” INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), vol. 7, no. 2 (26), pp. 359–366, 2010, [Online]. Available: https://sid.ir/paper/285241/en

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