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题名: Bioremediation capability evaluation of benzene and sulfolane contaminated groundwater: Determination of bioremediation parameters.
作者: Yang
Shu-Hui Liu
Yu-Min Su
Yu-Rong Chen
Chi-Wen Lin
Keng-Li Lin
贡献者: 國立臺灣海洋大學:地球科學研究所
关键词: Bioaugmentation
Dissolved oxygen
Sulfolane degradation
日期: 2019-01
上传时间: 2018-12-27T02:43:16Z
出版者: Science of the Total Environment
摘要: Abstract: Benzene and sulfolane are commonly used but hazardous chemicals in the petrochemical industry and their leakage and inappropriate disposal certainly causes serious soil and groundwater contamination. In this research, the bioremediation potential of groundwater contaminated with benzene and sulfolane was evaluated, and the operating parameters for bioremediation were established through laboratory batch experiments. Among the various bacterial consortia, the bacterial population of monitoring well c (MWc) contained the highest sulfolane and benzene removal efficiencies. When the dissolved oxygen (DO) level was >1 mg L-1, the bacterial population of MWc showed excellent removal efficiencies toward high and low concentrations of benzene and sulfolane. The C:N:P ratio of 100:10:1 in media facilitated sulfolane and benzene biodegradation, and the degradation time was greatly reduced. Adding additional phosphate into real groundwater could slightly increase benzene removal efficiency. Trace elements only slightly enhanced benzene degradation. On the contrary, additional phosphate and trace elements supplementary did not enhance sulfolane degradation. However, sulfolane removal efficiency could be significantly improved through bioaugmentation of specific sulfolane degrading bacterium and 100% sulfolane removal efficiency was achieved.
显示于类别:[應用地球科學研究所] 期刊論文


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