METHOD FOR ACHIEVING REMEDIATION OF CHLORINATED ORGANIC POLLUTANT-CONTAMINATED SOIL AND REDUCTION OF METHANE EMISSION SYNCHRONOUSLY THROUGH MICROBIAL REGULATION

Abstract: a method for achieving a remediation of a chlorinated organic pollutant (cop)-contaminated soil and a reduction of a methane emission synchronously through a microbial regulation is provided, including: in an anaerobic environment, adding at least one of electron donors, electron shuttles, and electron flow interference agents to the cop-contaminated soil to accurately and directionally regulate an electron transfer route, facilitating a cop reductive dechlorination mediated by indigenous microorganisms and meanwhile inhibiting a growth and a metabolism of methanogens synchronously. electron donors are added as a carbon source to promote microbial growth and metabolism under anaerobic conditions, electron shuttles such as biochar are added to accelerate the transfer of electrons from the donor to the acceptor, and the electron flow interference agents such as a methanogenic inhibitor or a feclsolvent are added to regulate more electrons released from microbial respiratory metabolism to flow towards dechlorination process rather than methanogenesis process.

Inventor(s): Yan HE, Jie CHENG, Jianming XU

CPC Classification: B09C1/10 (microbiologically, {biologically} or by using enzymes)

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