高锰酸钾氧化水中恩诺沙星的动力学研究  

Kinetics on enrofloxacin oxidation by potassium permanganate in drinking water

作　　者：徐勇鹏[1,2] 赵丽伟[2,3] 王在刚[4] 

机构地区：[1]哈尔滨工业大学城市水资源开发利用(北方)国家工程研究中心,哈尔滨150090 [2]哈尔滨工业大学市政环境工程学院,哈尔滨150090 [3]中冶南方(武汉)建筑设计咨询有限公司,武汉430077 [4]哈尔滨市国际工程咨询中心,哈尔滨150018

出　　处：《哈尔滨工业大学学报》2013年第4期44-47,共4页Journal of Harbin Institute of Technology

基　　金：国家自然科学基金资助项目(51108118);黑龙江省科技攻关项目(GB07C20202);黑龙江省留学基金(LC2012C28)

摘　　要：为揭示高锰酸钾氧化水中恩诺沙星的动力学规律,通过实验得到高锰酸钾氧化恩诺沙星的反应动力学常数,并考察了高锰酸钾初始浓度、pH、温度等因素对反应动力学常数的影响.结果表明:高锰酸钾对恩诺沙星的氧化过程符合二级反应动力学模型,且高锰酸钾初始浓度、pH、温度对反应速率常数均有显著影响;随着温度、高锰酸钾浓度增加,反应速率增快;相对于中性条件,高锰酸钾氧化恩诺沙星的反应更容易在酸性和碱性条件下发生.此外,高锰酸钾氧化恩诺沙星的反应表观活化能Ea=53.27 kJ/mol,略低于一般的化学反应,说明该反应在一般水处理条件下较容易发生.To expose the kinetic law of enrofloxacin oxidation by potassium permanganate in aquatic environment, the article studied the rate constant of reaction, and simultaneously investigated the reaction influencing factors such as potassium permanganate dosage, pH value and temperature. The results showed that the oxidation reaction of enrofloxacin by potassium permanganate in aqueous solution followed second- order kinetics. The reaction rate constant was observably influenced by the three effect factors. The reaction rate increased with the increasing of temperature and potassium permanganate dosage. Under neutral condition, the reaction is easily conducted at the acidic and basic condition. The reaction activation energy Ea is 53.27 kJ tool - 1, slightly lower than that of the common chemical reaction, which reveals that the oxidation reaction between enrofloxacin and potassium permanganate is feasible under usual water treatment condition.

关 键 词：恩诺沙星 氧化 高锰酸钾 PH 温度 

分 类 号：TU991.2[建筑科学—市政工程]