电芬顿降解罗丹明B动力学研究  

Research on degradation dynamics of rhodamine B in electric fenton

作　　者：刘侨博[1] 周瑶 刘薇[1] 曾红云[1] 

机构地区：[1]黑龙江省环境保护科学研究院,哈尔滨150056 [2]黑龙江省纺织工业设计院,哈尔滨150001

出　　处：《哈尔滨商业大学学报（自然科学版）》2014年第6期665-667,共3页Journal of Harbin University of Commerce：Natural Sciences Edition

摘　　要：为了考察电芬顿降解罗丹明B的反应动力学,实验对初始p H值、温度、亚铁浓度的反应动力学进行了研究,测定了最佳反应动力学条件.结果表明,当溶液p H为1、3、4、7时,反应速率常数分别为0.032 7、0.033 9、0.020 3、0.014 9 min-1.当溶液温度值为10、20、30℃时,反应速率常数分别为0.031 7、0.033 9、0.035 1 min-1.当溶液中亚铁浓度分别为7、10、15、20 mmol/L时,反应速率常数分别为0.021 4、0.032 7、0.033 8、0.0407 min-1.罗丹明B降解均符合一级动力学.In order to investigate the degradation dynamics of rhodamine B in electric fenton,reaction kinetics were studied in different initial p H value,temperature,concentration of Fe^2＋. Results showed that when the solution p H were 1,3,4 and 7,the reaction rate constants were 0. 032 7,0. 033 9,0. 020 3 and 0. 014 9 min^-1,respectively. When the solution temperature were 10,20 and 30 ℃,the reaction rate constants were 0. 0317,0. 0339 and 0. 0351 min^-1. When the concentration of ferrous were 7,10,15 and 20 mmol / L,the reaction rate constants were 0. 021 4,0. 032 7,0. 033 8 and 0. 0407 min^-1,respectively.Overall,the degradation followed the first-order reaction.

关 键 词：罗丹明B 电芬顿 印染废水 反应动力学 

分 类 号：X788[环境科学与工程—环境工程]