添加乙醇碳源对驯化菌种降解油制气废水的影响  

Effects of ethanol supplementation on biodegradability of organic constituents of MGP-wastewater

作　　者：程鹏 慎义勇 盛国英[2] 傅家谟[2] 

机构地区：[1]深圳市危险废物处理站,广东深圳518049 [2]中科院广州地球化学研究所,广东广州510640

出　　处：《环境污染与防治》2005年第8期597-600,共4页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.49632060)

摘　　要：进行了添加乙醇作为碳源强化油制气废水生物降解的研究,并利用GC/MS分析对油制气废水中芳烃类化合物的降解进行了初步研究.研究表明,共代谢基质乙醇的加入,可使菌种S-2、Y-3、XH-3、M-3对COD、氨氮、可萃取有机物等指标的去除率分别提高17.6%～25.6%、34.9%～42.8%、10.4%～14.2%;但在所采用的时间范围内,酚类化合物的去除率降低;芳烃类化合物的去除率提高15.4%～21.2%.除了维持无共代谢条件下对芳环数≤3的芳烃类化合物的良好降解能力外,对芳环数为4～6的化合物降解能力也有所提高.Ethanol was used as co-metabolic substance to enhance biotreatment of wastewater produced in the manufacturing gas process （MGP-wastewater） ; GC/MS analysis was employed to monitor biodegradation of aromatic compounds. Ethanol supplementation improved degradation capacities of four acclimated bacteria species （S-2, Y-3, XH-3, M-3） for COD, NH4＋ , extractable organic compounds, and aromatic compounds by 17.6%-25.6%, 34.9%-42.8%, 10.4%-14.2%, and 15.4%-21.2%, respectively. It sustained the bacteria＇s capability for degrading aromatic compounds of less than 3 rings and enhanced biodegradability of 4- 6 rings aromatic compounds.

关 键 词：乙醇 碳源 油制气废水 芳烃化合物 

分 类 号：X703[环境科学与工程—环境工程]