摘要
为了改善垃圾渗滤液生化处理系统尾水有机污染物的进一步降解效果,以垃圾渗滤液生化处理曝气池污泥为菌种分离源,用渗滤液生化尾水和琼脂调配培养基,采用生物强化技术驯化和筛选出3种功能菌,经16S rDNA鉴定为海杆菌属（Marinobacter）、不动杆菌属（Acinetobacter）和埃希式菌属（Escherichia）。将功能菌扩大培养,用物理循环吸附法投放于生物活性炭（BAC）反应器中。通过对照实验发现,自然挂膜的BAC仅对垃圾渗滤液生化尾水中分子量M为10-5 kDa的有机污染物具有较好的降解能力,而投加了功能菌的BAC对分子量M为100-30 kDa的有机污染物去除率为76.1%,对M〉100 kDa的有机污染物去除率为80.9%。投加功能菌的BAC可以提高垃圾渗滤液的生化处理效果。
To improve organic pollutant degradability of landfill leachate,culture medium was prepared with landfill leachate and agar.And then three functional bacteria were cultured and screened from sludge in aeration pool of biochemical treatment system by bioaugmentation.Based on 16S rDNA identification,these bacteria were named Mari-nobacter（coded Y1）,Acinetobacter（coded Y2） and Escherichia（coded Y3）.Functional bacteria were scaling up,and then inoculated into biological-activated carbon（BAC） reactor by physical circle absorption method.With the control experiment,it was shown that the natural start-up BAC had significant degradation capacity to organic pollutants with molecular weight M of 10 ~ 5 kDa.And the inoculums＇ start-up BAC with functional bacteria was kept with was with removal rate of 76.1% for organic pollutants with molecular weight M of 100 ~ 30 kDa,and 80.9% for organic pollutants with molecular weight M exceeding 100 kDa.
出处
《土木建筑与环境工程》
CSCD
北大核心
2010年第2期96-101,共6页
Journal of Civil,Architectural & Environment Engineering
基金
教育部科技创新工程重大项目培育基金项目(708071)
重庆市教委科学技术研究项目(KJ061205)
关键词
渗滤液处理
深度处理
功能菌
筛选
生物活性炭
landfill leachate treatment
advanced treatment
functional bacteria
screening
biological activated carbon
