Denitrifying Effect with Controlled-release Carbon-source Material for the PRB in Sand Column

摘要：

　　The controlled-release carbon-source material GSP-BN was prepared with corn starch as carbon source(S) and polyvinyl alcohol(P) as vector,as well as modifying with boric acid(B) and sodium sulfate(N).The denitrification effect with GSP-BN for PRB(Permeable Reactive Barrier) active material in sand column was investigated in 57d.Nitrate-nitrogen removal rates are above 99.6%,92.3% and 84.8% respectively,when influent nitrate-nitrogen varied among 20rag/L,30mg/L and 40mg/L.It indicated nitrate-nitrogen was removed efficiently.Effluent nitrite-nitrogen and ammonia-nitrogen remained below 1.2mg/L and 2.3mg/L separately.Effluent TOC remained below 15mg/L between 8-57d,close to the influent TOC concentration.

关键词： polyvinyl alcohol starch boric acid sodium sulfate PRB denitrification

作者: YU Sanjiang LIN Han WANG Jiaqua XIE Wenyi

作者单位: School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China

会议类型: 国际会议

会议名称: The 4th International Conference on Environmental Technology and Knowledge Transfer(第四届亚欧环境技术及知识转化国际研讨会(2012ICET))

会议地点: 合肥

会议语种:英文

页码: 607-610

在线出版日期: 2012-05-24（万方平台首次上网日期，不代表论文的发表时间）