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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：盘锦校区食品与环境学院副院长 Vice Dean School of Food and Environment Panjin Campus Dalian University of Technology
性别：女
毕业院校：大连理工大学
学位：博士
所在单位：化工海洋与生命学院
学科：环境工程. 环境科学
办公地点：环境学院 B 505
化工 海洋与生命学院 D05-201
联系方式：0427-2631799;
Effects of COD/N ratio and DO concentration on simultaneous nitrification and denitrification in an airlift internal circulation membrane bioreactor
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论文类型：期刊论文
发表时间：2008-07-01
发表刊物：JOURNAL OF ENVIRONMENTAL SCIENCES
收录刊物：SCIE、PubMed、ISTIC、CSCD
卷号：20
期号：8
页面范围：933-939
ISSN号：1001-0742
关键字：simultaneous nitrification and denitrification (SND); chemical oxygen demand and nitrogen (COD/N) ratio; dissolved oxygen (DO) concentration
摘要：The effects of chemical oxygen demand and nitrogen (COD/N) ratio and dissolved oxygen concentration (DO) on simultaneous nitrification and denitrification (SND) were investigated using an airlift internal circulation membrane bioreactor (AIC-MBR) with synthetic wastewater. The results showed that the COD efficiencies were consistently greater than 90% regardless of changes in the COD/N ratio. At the COD/N ratio of 4.77 and 10.04, the system nitrogen removal efficiency became higher than 70%. However, the nitrogen removal efficiency decreased to less than 50%, as the COD/N ratio shifted to 15.11. When the operating DO concentration was maintained at 1.0 mg/L in AIC-MBR, a satisfying SND was achieved. Either low or high DO concentration could restrain SND.