驯化筛选微生物对油制气废水的降解特性  

Biodegraded Characteristics of MGP-Wastewater by Domestic and Screened Organisms

作　　者：任源[1] 慎义勇[2] 韦朝海[1] 盛国英[2] 傅家谟[2] 

机构地区：[1]华南理工大学环境科学研究所,广州510640 [2]中国科学院广州地球化学研究所广东省环境保护资源利用重点实验室,广州510640

出　　处：《环境科学》2002年第5期76-79,共4页Environmental Science

基　　金：国家自然科学基金项目 (496 32 0 6 0 ) ;广东省百项创新项目 (2KB0 6 6 0 4C) ;广东省自然科学基金项目(96 30 4 3;0 0 0 4 92 )

摘　　要：从 5个菌源分离到的 1 6株菌中筛选出S 2、Y 3和XH 3为优势菌种 ,分别用它们及其混合菌M 3研究对油制气废水的降解 ,60h之后CODCr的去除率为 3 8 4%～ 44 0 % ,酚类化合物的去除率为 95 4%～ 97 0 % ,芳烃类化合物的去除率为 47 1 %～ 5 3 7% ,但氨氮的去除率只有 1 4 0 %～ 1 7 6% .采用GC/MS分析了处理前后废水中的芳烃类化合物 ,所筛选的微生物对芳环数≤ 3的芳烃类化合物降解能力强 ,还可去除一定量芳环数为 4～ 6的芳烃类化合物 .加入共代谢基质葡萄糖 ,可使CODCr、氨氮及可萃取有机物的去除率分别提高 1 3 1 %～ 2 2 9%、1 8 4%～ 2 2 7%及 1 3 1 %～ 1 8 1 % ;加入乙醇 ,可使CODCr、氨氮及可萃取有机物的去除率分别提高 1 2 5 %～2 1 2 %、2 9 7%～ 42 2 %及 6 7%～ 7 7% .废水中芳烃类化合物的总去除率分别比无葡萄糖和无乙醇时提高了1 7 7%～ 2 1 7%和 1 5 4%～ 2 1 2 % .Among 16 bacteria that were screened out from 5 activated sludge, S 2, Y 3, XH 3 and their mixed strains M 3 were selected to biodegrade MGP (Manufacture gas from petroleum) wastewater. They can remove 38 4%～44 0% COD Cr , 95 4%～97 0% hydroxybenzene and 47 1%～53 7% aromatic compound after 60 h treatment, but the removal rate of NH + 4 N was only 14 0%～17 6% About 77 toxic organic compounds were detected by GC/MS analysis, the aromatic compounds which had 3 rings and 4～6 rings can be biodegraded by the bacteria. The removal rate of COD Cr , NH + 4 N and extractable organic compound were improved 13 1%～22 9%,18 4%～22 7% and 13 1%～18 1% respectively when glucose was added in the wastewater, and when ethanol was existing in the wastewater, the corresponding increase were 12 5%～21 2%,29 7%～42 2% and 6 7%～7 7%. The total removal rates of aromatic compound were increased 17 7%～21 7% ,15 4%～21 2%. The screened strains can improve the biodegradation rate of MGP wastewater.

关 键 词：驯化 筛选 微生物 油制气废水 降解特性 

分 类 号：X743[环境科学与工程—环境工程]