摘要：

采用铁炭微电解-Fenton+UASB+MBR组合工艺处理纤维素乙醇废水, 并对工程设计运行参数和污染物去除机理进行了探索。结果表明;在微电解反应5 h, UASB停留时间36 h, MBR停留时间25 h条件下处理纤维素乙醇废水, 经絮凝脱色后出水COD、氨氮等指标均达到《发酵酒精和白酒工业水污染物排放标准》(GB 27631—2011)中的规定, 且运行效果稳定, 费用较低。

关键词: 纤维素乙醇, 铁炭微电解, 上流式厌氧污泥床, 膜生物反应器

Abstract:

A combined process of iron-carbon micro-electrolysis-Fenton+UASB+membrane bioreactor(MBR) has been used for treating cellulose ethanol wastewater.Its engineering design operation parameters and pollutant removing mechanisms have been explored.The results show that after the flocculation decolorization process, all of the indexes, such as effluent COD, ammonia-nitrogen, etc.can reach the requirements of the Discharge Standard of Water Pollutants from Fermentation Alcohol and Distilled Spirits Industry(GB 27631—2011), the effect of the operation is stable, and cost is low, under the following conditions: reaction time of micro-electrolysis is 5 h, UASB retention time 36 h, and MBR retention time 25 h.

Key words: cellulose ethanol, iron-carbon micro-electrolysis, upflow anaerobic sludge blanket, membrane bioreactor

中图分类号: 

• X703.1