摘要
研究了UV/H2 O2 体系降解对氯苯酚废水的过程及动力学 .结果表明 ,反应降解速率与双氧水加入量、污染物初始浓度及载气种类有关 .在双氧水理论投加量一半的情况下 ,通入氧气或空气 ,总酚的降解率可达到 96 % ,CODCr去除率接近 5 0 % .反应体系加入载气 ,显著影响污染物的去除率 .在本实验中 ,总酚降解为拟一级反应 .
The photodegradation of p-chlorophenol in a hydrogen peroxide-aided photolysis process was investigated. The reaction was influenced by the original concentration of p-chlorophenol and H 2O 2 addition and carrier gas. With the aid of dioxygen, the removal of phenol and COD Cr were reached about 96% and 50% respectively if the original concentration of H 2O 2 added was only half of stoichiometric calculation. A pseudo-first order kinetic model was adopted to represent the reaction.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2003年第5期106-109,共4页
Environmental Science
基金
国家自然科学基金资助项目 (2 0 176 0 5 3)
