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.

苯和环丁砜是常用的，但在石油化学工业中是危险的化学物质，它们的泄漏和不适当的处置肯定会导致严重的土壤和地下水污染。在这项研究中，评估了被苯和环丁砜污染的地下水的生物修复潜力，并通过实验室分批实验建立了用于生物修复的操作参数。在各种细菌群落中，监测井c（MWc）的细菌种群中环丁砜和苯的去除效率最高。当溶解氧（DO）含量> 1 mg L ^-1时，MWc的细菌种群对高和低浓度的苯和环丁砜显示出优异的去除效率。介质中的C：N：P比为100：10：1促进了环丁砜和苯的生物降解，并大大缩短了降解时间。在真实的地下水中添加额外的磷酸盐可能会略微提高除苯效率。痕量元素只会稍微增强苯的降解。相反，补充的磷酸盐和微量元素不能促进环丁砜的降解。但是，通过对特定环丁砜降解细菌进行生物强化，可以显着提高环丁砜的去除效率，并实现了100％环丁砜的去除效率。