Enhanced-bioremediation effects of oil polluted soils in Daqing oilfield
Based on an investigation of oil polluted soils in Daqing oilfield in China, the bioremediation systems were assessed and the enhanced-bioremediation effects are discussed in this paper. The abiotic factors in the bioremediation systems were controlled in the optimized range, with temperatures of 20-25℃, water contents of 10％-16％, and the nutrient in purposeful accession. The running results of the bioremediation systems showed that the microbial amounts of the enhanced systems were 2-3 orders higher than the 1＃ system, and the microbial amounts in 2＃ system increased rapidly after 15-20 days, as the same level to the systems which adding bacteria. The total highest cleaning ratio of the oil polluted soils could reach 34.23％ in the 4＃ system, according to the degradation mechanism, the bioremediation was the major process in the bioremediation systems in this paper.
J.L.Jia G.H.Li
Department of Environmental Science and Engineering, China University of Mining and Technology (Beij Department of Environmental Science and Engineering, Tsinghua University, Beijing, P.R.China
国际会议
第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)
昆明
英文
1579-1583
2007-07-31（万方平台首次上网日期，不代表论文的发表时间）