炼化污水的厌氧生物预处理技术  

Treatment of refining wastewater using a highly efficient anaerobic biological reactor as pretreatment technology

作　　者：王宇[1] 许双双 阎光绪[1] 王庆宏[1] 李敏[1] 马文峰[1] 马静园 郭绍辉[1] 

机构地区：[1]中国石油大学(北京),北京市油气污染防治重点实验室,重质油国家实验室,北京102249 [2]中国昆仑工程公司,100037

出　　处：《环境工程学报》2016年第1期115-120,共6页Chinese Journal of Environmental Engineering

基　　金：中国昆仑工程公司项目(2013GJTC-06-03);国家自然科学基金资助项目(21306229)

摘　　要：炼化污水中污染源以难降解有机物为主,降低污水生物毒性,提高其可生化性是炼化污水达标排放的关键环节。为降低工艺运行成本及产泥量,同时为后续好氧生化处理提供优质水源,实验采用高效厌氧生物反应器处理炼化污水,探讨炼化污水厌氧处理过程中的COD去除率、能源转化效能、微生物菌群变化、可生化性及有机污染物降解效果。结果表明,该反应器对炼化污水COD平均去除率达70.01%,出水中大分子复杂难降解有机污染物转化为以小分子有机酸类为主的有机物,可生化性明显提高,为后续生物处理提供良好运行条件。Refractory organics are the primary organic pollutants of refining wastewater. Reduction of biological toxicity and improvement of biodegradability is the key unit in treating refining wastewater. To reduce running cost and residual sludge,at the same time to provide favorable conditions for subsequent aerobic biochemical treatment,a highly efficient anaerobic biological reactor（ ABR） was used as a pretreatment technology. The performance of high efficient ABR treating refining wastewater was investigated in terms of COD removal efficiency,energy conversion efficiency,change of microbial population,biodegradability and organic pollutants degradation efficiency. The result showed that the COD average removal efficiency was 70. 01%. The biodegradability of treated wastewater was improved and the major pollutants were converted to small organic acids creating favorable conditions for subsequent biological treatment.

关 键 词：炼化污水 有机污染物 高效厌氧生物反应器 COD 可生化性 

分 类 号：X703.3[环境科学与工程—环境工程]