Degradation of Diesel with Microorganisms in the Rhizosphere of Sagittaria Sagittifolia
Because of widespread use of petroleum and its products, environmental risks of Huangpu-Yangtze River estuary (HYRE) wetland mainly are associated with accidental oil spills. This research was carried out to assess the diesel biodegradation potential of a native plant, Sagittaria sagittifolia L.(SSL), and indigenous oil-degrading microorganisms(HPM). Phytoremediation of organic pollutants exploits the synergy between soil microorganisms and plant roots to increase the degradation of diesel. During the 60-day experiment, soil samples were analyzed periodically to determine the residual amount of diesel and microbial populations. The diesel was dissipated under the effect of HPM in planted soils more than in unplanted soils. After 60-day experiment, 73.1% of diesel pollutants had been dissipated in planted soils(SSL-M) when the diesel concentration was 1 5000 mg·kg-1. The treatments played a remarkable role in the saturated hydrocarbons than aromatic hydrocarbons, especially SSL-M had an obviously degradation effect on the alkanes of C16-C25 range. The co-metabolization action of SSL and HPM played an important role on the degradation of diesel pollutants.
LIU Xiaoyan WANG Zhenzhen ZHANG Xinying XU Gang ZHONG Chenglin CAO Zhengnan CHEN Lisha
College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
国际会议
2011 International Symposium on Environmental Science and Technology(2011 环境科学与技术国际会议 2011 ISEST)
广东东莞
英文
846-851
2011-06-01（万方平台首次上网日期，不代表论文的发表时间）