太阳光/电-Fenton法降解H-acid的表观动力学研究  

STUDY ON APPARENT KINETICS OF H-ACID DEGRADATION BY SOLAR PHOTO ELECTRO-FENTON METHOD

作　　者：肖羽堂[1] 李志花[1] 许双双[1] 尹玉玲[1] 

机构地区：[1]南开大学环境科学与工程学院,天津300071

出　　处：《环境化学》2011年第2期544-548,共5页Environmental Chemistry

基　　金：天津市应用基础及前沿技术研究计划项目(08JCYBJC02600);国家水体污染控制与治理科技重大专项(2008ZX07314-005-011)资助

摘　　要：进行了太阳光/电-Fenton法降解染料中间体H-acid模拟废水的表观动力学研究,通过对不同初始H-acid浓度和Fe2+浓度体系以及不同初始电压浓度体系反应的分析,确定该反应的表观动力学方程和动力学参数,为该技术降解H-acid废水优化反应条件提供了依据.结果表明,在固定初始pH值、支持电解质Na2SO4为0.10 mo.lL-1、太阳光直射的条件下,太阳光/电-Fenton降解染料中间体H-acid的反应级数为1.88,其反应的表观动力学方程为:y=0.053×P0.8313×F0.1224×V0.9227.The apparent kinetics of H-acid degradation by solar photo electro-Fenton method was studied in this paper.The apparent kinetics equation and the order of H-acid degradation reaction were obtained by the analysis of the reaction system at various initial H-acid concentrations,various initial Fe^2＋concentrations and various voltages,which provided basis for optimizing the reaction conditions of H-acid degradation.The degradation reactions were carried out at pH 3,the concentration of the supporting electrolyte Na2SO4 was 0.10 mol·L-1,under the sunlight,the overall reaction order was 1.88 and the reaction dynamics equation from experiments was constructed： y=0.053×P^0.8313×F^0.1224×V^0.9227.

关 键 词：太阳光/电-Fenton 表观动力学 染料中间体 降解 反应级数 

分 类 号：X703[环境科学与工程—环境工程]