摘要
研究了UV/H2O2工艺对LAS的去除效果以及水的pH、浊度对LAS降解的影响和机理.结果表明:UV/H2O2工艺可以有效的去除水中LAS,光降解过程符合一级反应动力学模型;在H2O2投加量为8 mg.L-1,14 W低压汞灯照射下,LAS在蒸馏水中光降解速率常数为0.018 1 min-1;在酸性条件下,有利于LAS光降解;浊度大于6NTU时,光降解速率常数迅速下降.
Experiments are carried out to study the effects and mechanisms of inorganic anions in water on the degradation of LAN in UV/H2O2 process. The results show that UV/H2O2 process could remove LAS effectively, and the process of photoegradation follows first-order reaction kinetics model; Under the condition that H2O2 concentration was 8 mg· L^-1 and a 14 W low pressure mercury vapor discharge lamp irradiated, the first - order photodegradation rate constant of LAS in distilled water was 0. 018 1 min^-1; Acid conditions is favor for its photoegradation; When turbidity was more than 6NTU, photodegradation rate constant droped quickly.
出处
《沈阳师范大学学报（自然科学版）》
CAS
2007年第4期503-505,共3页
Journal of Shenyang Normal University:Natural Science Edition
基金
沈阳师范大学实验中心主任基金项目
沈阳师范大学环境科学系资助项目
作者简介
潘晶（1977-），女（满族），辽宁沈阳人，沈阳师范大学讲师，博士研究生．
