Photodegradation of N-nitrosopyrrolidine and N-nitrosopiperidine in water by UV irradiation

摘要：

Photodegradation of N-nitrosopyrrolidine (NPyr) and N-nitrosopiperidine (NPip) in water by UV irradiation was investigated. The results showed that UV irradiation was effective to degrade NPyr and NPip in water. Photodegradation reaction of NPyr and NPip by UV irradiation obeyed pseudo-first-order kinetics. Solution pH had different effects on NPyr and NPip photodegradation. Products of NPyr and NPip degradation by UV irradiation were identified by using GC-MS and HPLC. Piperidine and pyrrolidine were confirmed as the primary product of NPyr and NPip, respectively. The primary products of NPyr and NPip photodegradation were considered as a result of N-N bond fission due to UV irradiation. Then piperidine and pyrrolidine were further degraded to various low molecular weight products, respectively.

关键词： N-nitrosopyrrolidine N-nitrosopiperidine disinfection by-product UV irradiation

作者: Bingbing Xu Zhonglin Chen Fei Qi Lei Yang Jimin Shen

作者单位: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, P R China

会议类型: 国际会议

会议名称: The 12th Asian Pacific Confederation of Chemical Engineering Congress(第十二届亚太化工联盟大会暨化工展览会)

会议地点: 大连

会议语种:英文

在线出版日期: 2008-08-04（万方平台首次上网日期，不代表论文的发表时间）