摘要
以焦化废水中典型污染物间甲酚为对象,采用烧杯实验,确定水溶液中高铁酸钾〔Fe(Ⅵ)〕氧化降解间甲酚的最佳反应条件,并建立化学反应动力学模型。实验结果表明,当Fe(Ⅵ)和间甲酚的物质的量比为8,溶液pH=9,温度为14℃时,反应180 s后间甲酚的去除率为91.84%。前30 s的反应过程符合准一级反应动力学模型,反应速率常数k=0.062 7,磷酸盐会抑制Fe(Ⅵ)对间甲酚的氧化降解。
A series of beaker experiments were carried out to study the optimal reaction conditions for the oxidative degradation of typical m-cresol in the coking wastewater by potassium ferrate 〔Fe(Ⅵ)〕. Then the chemical reaction kinetic model was established. The experimental results showed that when the molar ratio of Fe(Ⅵ) to m-cresol was8,the solution p H was 9,and the temperature was 14 °C,the removal rate of m-cresol after the reaction for 180 s was91.84%. The reaction process in the first 30 s conformed to the pseudo-first-order reaction kinetics model,and the reaction rate constant k was 0.062 7. Phosphate inhibited the oxidative degradation of m-cresol by Fe(Ⅵ).
作者
张静
李亚男
王乐心
吴康迎
冯雪枫
Zhang Jing;Li Ya’nan;Wang Lexin;Wu Kangying;Feng Xuefeng(Department of Environmental Science and Engineering,Taiyuan University of Technology,Jinzhong 030600,China)
出处
《工业水处理》
CAS
CSCD
北大核心
2020年第3期73-77,共5页
Industrial Water Treatment
基金
山西省基础研究计划项目(2015021119,201801D121267)
山西省高等学校科技创新项目(201802026)
自然资源部生态地球化学重点实验室开放基金(ZSDHJJ201804)
太原理工大学大学生创新创业训练项目(18061)
