Effect of Electrokinetic on Biodegradation of Benzo a pyrene in a Clay Soil with Polarity Reversal
Electro-bioremediation is an innovative technology for the cleanup of organic-contaminated soil. This study attempted to test the feasibility of electrokinetic process for the bioremediation of soil contaminated with benzoapyrene (Bap) as a model polycyclic aromatic hydrocarbon (PAH) at laboratory scale. The electric field caused great change in soil pH and moisture content near the anode;while using electrode polarity reversal, pH and moisture content could be finely controlled. Over 40％ of the initial 50 mg/kg Bap in clay soil could be removed under electric field with electrode polarity reversal in 40 d, around 88％ higher than that with bacteria treatment only. The electrokinetic stimulated the bacteria growth and accelerated the decontamination efficiency of Bap. Hence, the present study provided a promising electrokinetic technology for bioremediation of PAH contaminated soils.
bioremediation electrokinetic benzofajpyrene clay soil
Diannan Huang Tingting Li Bo Wu Fengmei Li Duo Wang Shuhai Guo
Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang, China Graduate University of Chin Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang, China Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang, China Graduate University of Chin Environmental Monitoring Centre Station of Shenyang,Shenyang, China
国际会议
哈尔滨
英文
673-676
2012-06-16（万方平台首次上网日期，不代表论文的发表时间）