γ-辐照降解微囊藻毒素的研究  

RADIOLYSIS OF MICROCYSTINS BY γ-IRRADIATION

作　　者：张继彪[1] 郑正[1] 杨光俊 赵永富[1] 

机构地区：[1]污染控制与资源化研究国家重点实验室南京大学环境学院,南京210093 [2]国电环境保护研究所,南京210031

出　　处：《环境化学》2006年第5期572-575,共4页Environmental Chemistry

基　　金：国家自然科学基金项目(No.10475040)

摘　　要：γ-辐照对水中微囊藻毒素(微囊藻毒素-LR和微囊藻毒素-RR)具有较好的去除效果,实验室培养样品中微囊藻毒素-LR在8 kGy辐照剂量下降解率达到98.8%,而微囊藻毒素-RR在5 kGy辐照剂量下就达到100%的降解率.对太湖水样进行γ-辐照,其中微囊藻毒素得到有效降解,降解后其浓度远低于国家规定标准.γ-辐照对微囊藻毒素的降解可以通过一级动力学进行描述.γ-irradiation was efficient in removal of Microcystins. For the laboratorial samples, the degradation rate of MC-LR could reach 98.80% when 8 kGy radiation dose was selected. While the degradation rate of MC- RR could reach 100% when the samples were treated with dose of 5 kGy. For the samples from Taihu lake, γ-irradiation was also efficient in degradation of MC-LR and the residual concentration was far lower than the national criterion. The reaction could be depicted by first order reaction kinetics.

关 键 词：Γ-辐照 微囊藻毒素 降解 动力学. 

分 类 号：X13[环境科学与工程—环境科学]