Study on the Photocatalytic Degradation of Microcystins with UV/Fenton/TiO2

作     者：张维 董泽琴 张琳 杨再荣 

作者机构：贵州省水污染控制与资源化技术研究重点实验室贵州贵阳550002 贵州省环境科学研究设计院贵州贵阳550002 

基　　金：Supported by the Social Development Scientific and Technolgical Project[GKHS-2007-1007] The Special Funds for Top Talents [GSZH-2007-108] The Special Project for Improving Researeh Conditionsof Guizhou [TZJF-2007-15] 

出 版 物：《Meteorological and Environmental Research》 (气象与环境研究（英文版）)

年 卷 期：2010年第1卷第1期

页      码：30-33,38页

摘      要：[Objective] The paper aimed to study on the effects of photocatalytic degradation of microcystins MC-RR and MC-LR by UV/Fenton/TiO2 in depth lake water.[Method] With Fenton-TiO2 as photocatalyst,the influences of different reaction time,initial pH value,H2O2 concentration,Fe2+ concentration,TiO2 dosage,light intensity,initial concentration of microcystin on UV/Fenton/TiO2 heterogeneous photocatalytic degradation of microcystin were investigated,and removal effects of microcystin between heterogeneous photocatalytic degradation and UV photolysis were compared at the same time.[Result] Under the conditions that the initial concentration of H2O2 was 0.1 mmol/L,[H2O2]/[FeSO4] was 15:1,pH value was 4.0,the distance between the reaction solution and UV lamp tube was 1 cm,TiO2 dosage was 0.05 g/L,reaction temperature was (16±2) ℃,the removal rate of MC-RR with concentration of 0.35 mg/L and MC-LR with concentration of 0.29 mg/L could reach 91.5% and 90.2% after 3 minutes reacting.[Conclusion] UV/Fenton/TiO2 photocatalytic oxidation was proved to be effective in degradating microcystins.

主 题 词：UV/Fenton/TiO2 Photocatalytic degradation Microcystins China 

学科分类：083001[083001] 0830[工学-生物工程类] 08[工学] 

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