光反应器中UV/Fenton光降解湖水中微囊藻毒素的研究  

Photodegradation of microcystin-LR in lake water by UV/Fenton technique in photoreactor system

作　　者：徐明芳[1] 毛雪慧[1] 曾乐[1] 肖娜[1] 

机构地区：[1]暨南大学生命科学技术学院,广州510632

出　　处：《环境工程学报》2008年第7期932-937,共6页Chinese Journal of Environmental Engineering

基　　金：广东省科技计划资助项目(2KM02501G)

摘　　要：在光催化反应器中,采用UV/Fenton光催化氧化技术,对湖水中微囊藻毒素的光催化降解过程中各影响因子分析表明:微囊藻毒素光催化氧化降解率受光照强度、氧化剂种类及浓度、溶液pH和不同光催化体系等多因素的影响。光促催化氧化体系对MC-LR藻毒素降解具有显著的作用,在紫外光与氧化剂的协同作用下,紫外光照强度越高,越易于促进MC-LR藻毒素快速降解,降解率可到达80%以上。The photocatalytic decomposition of microcystin-LR in a photoreactor system has been studied by the UV/Fenton technique. The effects of influential factors on decomposition of microcystin-LR in UV/Fenton system were investigated by means of experiment. The experimental results show that the photodegradation efficiency of microcystin-LR arrived up to 80% under the conditions of UV irradiation in several photocatalytic reaction systems. These results indicated that synergic effect of ultraviolet light together with oxidant within photo-assisted reaction systems impacted greatly on the photodegradation of MC-LR algae toxin.

关 键 词：UV/FENTON 光催化氧化降解 微囊藻毒素 光反应器 

分 类 号：X52[环境科学与工程—环境工程]