Biodegradation Kinetics of DDT in Soil under Different Environmental Conditions by Laccase Extract from White Rot Fungi

赵月春; 易筱筠; 李明华; 刘露; 马伟娟

doi:10.1016/S1004-9541(10)60247-9

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Biodegradation Kinetics of DDT in Soil under Different Environmental Conditions by Laccase Extract from White Rot Fungi

Updated：2026-01-06

- Biodegradation Kinetics of DDT in Soil under Different Environmental Conditions by Laccase Extract from White Rot Fungi
- Chinese Journal of Chemical Engineering Vol. 18, Issue 3, Pages: 486-492(2010)
- Affiliations：
  
  1. Department of Applied Chemistry, College of Science, South China Agricultural University,Guangzhou,China,510642
  2. College of Environmental Science and Engineering, South China University of Science&Technology,Guangzhou,China,510640
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(10)60247-9
  CLC：
- Published：2010
- Accepted：
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ZHAO Yuechun, YI Xiaoyun, LI Minghua, LIU Lu, MA Weijuan. Biodegradation Kinetics of DDT in Soil under Different Environmental Conditions by Laccase Extract from White Rot Fungi[J]. , 2010, 18(3): 486-492.
DOI：

ZHAO Yuechun, YI Xiaoyun, LI Minghua, LIU Lu, MA Weijuan. Biodegradation Kinetics of DDT in Soil under Different Environmental Conditions by Laccase Extract from White Rot Fungi[J]. , 2010, 18(3): 486-492. DOI： 10.1016/S1004-9541(10)60247-9.

摘要

Abstract

Biodegradation of 2

2-bis(

-chlorophenyl)-1

1-trichloroethane(DDT)in soil by laccase extract from white rot fungi under different experimental conditions was investigated.DDTs

which stands for the sum of

′-DDE

′-DDT

′-DDD and

′-DDT in soil was degraded efficiently

and the residue decreased rapidly during the first 15 days and then slowly during the period of 16-25 days.The biodegradation of DDTs in soil fitted the pseudo-first-order kinetics.For 5

15 and 25 days of incubation with laccase

the residue of DDTs in soil under different atmospheres was decreased by 20%-33%

34%-52%

41%-61%and 41%-69%respectively

under different flooding conditions that was decreased by 12%-17%

17%-30%

30%-45%and 35%-52%respectively

and for different soils that was decreased by 25%-34%

39%-53%

44%-58%and 47%-62%respectively.The half-life of DDTs in soil ranged from 15.07 to 32.95 days under O

air or N

atmospheres

23.07 to 40.71 days under different flooding conditions

and 18.78 to 28.88 days for different soils.Laccase is an efficient and safe agent for bioremediation of DDT-contaminated soil.

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