Hydrolysis kinetics of atrazine and influence factors
The hydrolysis kinetics of atrazine in distilled water and leaching water from soil, and their influence factors were studied by incubation at 35℃ and HPLC analysis method in this paper. The kinetic process of atrazine hydrolysis can be described by the first-order reaction law. The results showed that the hydrolysis rate constants k in leaching water and distilled water were 1.606x10-3/d and 1.055x10-3/d, respectively; the half-life of atrazine hydrolysis in distilled water at pH 3, pH 4.5 and pH 8 were 373 days, 522 days and 657 days respectively. The results also showed that the proton in reaction solution can catalyze the atrazine hydrolysis; humic acid and NH4+ etc. substances in aqueous solution can facilitate atrazine hydrolysis; rate constants of atrazine hydrolysis with humic acid and NH4NO3 were 2.431x10-3/d and 1.498x10-3/d respectively which were 2.3 and 1.42 times of control(1.055x10-3/d); anion NO3- can inhibit catalysis of humic acid to atrazine hydrolysis.
作 者： Lei Zhi-fang YE Chang-ming WANG Xing-jun 作者單位： Research Center for Eco-Environmental Sciences, chinese academy of Sciences, 刊 名： 環境科學學報(英文版) ISTIC SCI 英文刊名： JOURNAL ENVIRONMENTAL SCIENCES 年，卷(期)： 2001 13(1) 分類號： X592 關鍵詞：【Hydrolysis kinetics of atrazine and 】相關文章：
Flocculation Kinetics of Chitosan04-27
Two stages kinetics of municipal solid waste inoculation composting processes04-26
Kinetics study on catalytic wet air oxidation of phenol by several metal oxide catalysts04-26