Enhancement effect of two ecological earthworm species (Eisenia foetida and Amynthas robustus E. Perrier) on removal and degradation processes of soil DDT

Journal of Environmental Monitoring : JEM
Zhong LinFang-bai Li

Abstract

Effects of two ecological earthworm species (epigeic Eisenia foetida and endogeic Amynthas robustus E. Perrier) with different densities (15 and 30 individuals per kg of soil) on the removal of soil 1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane (DDT) with two pollution levels (2 and 4 mg kg(-1)) were investigated. Concentrations of DDT and its metabolites, including 1,1-dichloro-2,2-bis(4-chlorophenyl)ethane (DDD), 1,1-dichloro-2,2-bis(4-chlorophenyl)ethylene (DDE), and 1-chloro-2,2-bis(4-chlorophenyl)ethylene (DDMU), were monitored after 60, 180, and 360 days of incubation. The results obtained showed that both earthworm species can significantly enhance degradation of soil DDT to its metabolites. For E. foetida, the higher earthworm density showed significantly higher rate of DDT degradation than the lower one. Anaerobic reductive dechlorination was the main degradation pathway over 180 days of incubation, while the aerobic dechlorination process was promoted between 180 and 360 days of incubation. Some earthworm amended treatments showed significantly higher microbial biomass carbon and nitrogen than the control, which suggested that earthworms might enhance the microbial degradation of DDT. Both earthworm species would have...Continue Reading

References

Feb 12, 2002·Environmental Health Perspectives·Vladimir TurusovLorenzo Tomatis
May 22, 2003·Environmental Pollution·Caroline J LangdonKirk T Semple
Aug 21, 2007·The Science of the Total Environment·Yi HuangShengji Luan
Apr 25, 2008·Environment International·Zachary A Hickman, Brian J Reid
Sep 1, 2002·FEMS Microbiology Ecology·Ekawan LuepromchaiDavid E Crowley
Sep 29, 2009·Journal of Hazardous Materials·Lingyan YangQingwei Bu
Mar 20, 2010·Bulletin of Environmental Contamination and Toxicology·Xing-Hong LiXiao-Bai Xu
Nov 17, 2010·Bioresource Technology·Anoop Yadav, V K Garg

❮ Previous
Next ❯

Citations

Sep 18, 2015·Environmental Pollution·Klára ŠmídováJakub Hofman
Feb 19, 2017·The Science of the Total Environment·E Morillo, J Villaverde
Apr 12, 2019·Environmental Science and Pollution Research International·Jialong WuJun Dai
Apr 19, 2018·Environmental Monitoring and Assessment·Ian A NavarreteArnold V Hallare
Nov 26, 2018·Journal of Hazardous Materials·Hui-Juan XuYong-Tao Li
Feb 18, 2020·Ecotoxicology and Environmental Safety·Markéta SvobodováKlára Šmídová

❮ Previous
Next ❯

Related Concepts

Related Feeds

Bioremediation (ASM)

Bioremediation is the treatment and removal of harmful pollutants or contaminants through the use of microorganisms. Discover the latest research here.