Effect of environmental conditions on nitrate removal from groundwater using biodenitrification supported by biodegradable snack ware

摘要：

Removal of nitrate from groundwater was investigated using biodegradable snack ware (BSW) as carbon source and biofilm carrier.The experimental results show that low temperatures affect significantly denitrification efficiency using BSW as carbon source.Denitrification rates at 5 ℃ and 10 ℃ were 5 ％ and 13 ％ of rates observed at 30 ℃,respectively.Denitrification supported by BSW could tolerate a relatively wide range of variation of pH and DO in the influent.Nitrite concentration in the effluent had little difference when pH value ranged from 4.5 to 8.5 in the influent.When DO concentration was between 0.9 and 5.0 mg/L,NO2-N concentration in the treated water never exceeded 0.15mg/L.

关键词： groundwater nitrate denitrification biodegradable snack ware

作者: Xiang Yu Baichun Huang Lijun Xing Zhijun Xu Xuming Wang

作者单位: Beijing Agro-Biotechnology Research Center,Beijing 100097,China University of Science and Technology Changchun Environmental Protection Agency,Changchun 130012,China Beijing Agro-Biotechnology Research Center,Beijing 100097,China Agricultural Division,Jilin University,Changchun 130062,China

会议类型: 国际会议

会议名称: 2010 International Conference of Environment Materials and Environment Management(2010年环境材料与环境管理国际学术会议 EMEM 2010)

会议地点: 哈尔滨

会议语种:英文

页码: 1349-1352

在线出版日期: 2010-07-24（万方平台首次上网日期，不代表论文的发表时间）