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超声波降解乐果的动力学和影响因素分析
引用本文:郭洪光,高乃云,姚娟娟,马艳.超声波降解乐果的动力学和影响因素分析[J].四川大学学报(工程科学版),2011,43(1):208-213.
作者姓名:郭洪光  高乃云  姚娟娟  马艳
作者单位:1. 同济大学污染控制与资源化研究国家重点实验室,上海,200092
2. 上海大学环境与化学工程学院,上海,200444
基金项目:国家科技重大专项资助; 国家“十一五”科技支撑计划;国家自然科学基金资助项目
摘    要:针对传统工艺难以去除水中的农药微污染问题,采用超声波工艺降解有机磷农药乐果,研究了超声波频率、功率、初始浓度、初始pH值、无机离子及腐植酸对乐果去除率的影响.结果表明,超声波降解乐果最佳频率为600 kHz;降解速率常数随着输出功率增加而提高,随初始浓度增大而减小;溶液中无机离子对降解速率有不同影响,HCO3-和CO3...

关 键 词:超声降解  乐果  动力学
收稿时间:1/20/2010 9:27:13 PM
修稿时间:2010/3/18 0:00:00

Analysis on the Impact Factors and Kinetics of the Sonolytic Degradation of Dimethoate
Guo Hong-Guang,Gao Nai-Yun,Yao Juan-Juan and Ma Yan.Analysis on the Impact Factors and Kinetics of the Sonolytic Degradation of Dimethoate[J].Journal of Sichuan University (Engineering Science Edition),2011,43(1):208-213.
Authors:Guo Hong-Guang  Gao Nai-Yun  Yao Juan-Juan and Ma Yan
Affiliation:College of Environmental Science and Engineering,Tongji University,College of Environmental Science and Engineering,Tongji University,College of Environmental Science and Engineering,Tongji University,College of Environmental Science and Engineering,Tongji University
Abstract:The presence of phosphorus pesticides in the aquatic environment has raised concerns due to its poor degradation in conventional water treatment plants.Sonolytic degradation of dimethoate in aqueous solution was investigated.The effects of ultrasonic frequency and power,dimethoate's initial concentration and initial pH value,and the concentration of humic acid and different ions on its degradation rate were studied.The results indicated that 600 kHz is the optimal frequency for dimethoate degradation and th...
Keywords:sonolytic degradation  dimethoate  kinetics  impact factors
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