生物增强活性炭技术处理微污染源水的研究

Study on micro-polluted water advanced treatment by bioaugmentation activated carbon technology

采用不同的筛选分离技术,从试验源水中分离出8株优势菌种,经过反复驯化培养,形成具有高效生物降解能力的高活性菌群.利用高活性菌群,采用人工循环固定方式形成生物增强活性炭工艺,进行其长期运行效能的试验研究.实验结果表明,生物增强活性炭工艺能够有效去除微污染源水的各类有机物,处理效能显著高于常规工艺和臭氧化工艺.源水经生物增强活性炭工艺处理后,其对氨氮的平均去除率为58.34%,对CODMn的平均去除率43.5%,对UV254的平均去除率57.4%,对TOC的平均去除率40.2%.经过色质联机检验,水中的各类微量有机物的种类和含量均有了显著的降低.

The high-active bacteria are bred from the eight dominance bacteria obtained from the waters by several select techniques and continual domestication, and the bioaugmentation activated carbon is formed by circular immobilized the high-active bacteria. Pilot plant research of the bioaugmentation activated carbon treatment schemes is conducted for polluted raw water. The results show that for the raw water, the bioaugmentation activated carbon treatment has adopted better purification efficiency compared with the normal treatment and onozation treatment. The analysis data show that during the test period, the mean removal ratios of 58.34% ,43.5% ,57.4% and 40.2% have been obtained for NH3--N, CODMn, UV254 and TOC in the bioaugmentation activated carbon treatment. The analysis data of gas chromatography mass spectrum（ GC -MS） show that the organic substances sorts and content are greatly decreased.