首页 | 本学科首页   官方微博 | 高级检索  
     

Fenton降解涂装废水的因素影响及动力学分析
引用本文:袁怡, 翟晶晶, 卜志威, 陈惟潇, 谢怡漪. Fenton降解涂装废水的因素影响及动力学分析[J]. 环境工程学报, 2022, 16(10): 3221-3231. doi: 10.12030/j.cjee.202201029
作者姓名:袁怡  翟晶晶  卜志威  陈惟潇  谢怡漪
作者单位:1.苏州科技大学环境科学与工程学院,苏州 215009; 2.江苏省水处理技术与材料协同创新中心,苏州 215009; 3.城市生活污水资源化利用技术国家地方联合工程实验室,苏州 215009; 4.苏州市环境保护有限公司,苏州 215009
基金项目:“十三五”水专项“苏州区域水质提升与水生态安全保障技术及综合示范项目”(2017ZX07205);苏州市分离净化材料与技术重点实验室项目(SZS201512)
摘    要:以江苏某电动自行车制造企业的涂装废水为研究对象,采用单因素和响应面优化Fenton氧化处理的反应条件,分析了其动力学过程。结果表明:在pH=3.21、n(H2O2/Fe2+)=8∶1、m(H2O2/COD)=4.17∶1、氧化反应时间为120 min的条件下,COD和TP的去除率均达到最高,分别为81.32%和98%,其降解过程符合一级反应动力学,室温下降解速率常数k为0.014 2 min−1,活化能为4.76 kJ·mol−1。在pH=3.21、n(H2O2/Fe2+)=8∶1、m(H2O2/COD)=0.78∶1、反应时间120 min的条件下,Fenton半氧化体系对COD去除率可达42.5%左右,处理后废水的B/C比由0.12提高至0.35。综合经济因素,认为Fenton半氧化与生物处理工艺耦合处理实际涂装废水更佳。

关 键 词:Fenton氧化   涂装废水   响应曲面法   动力学
收稿时间:2022-01-06

Influencing factors and kinetic analysis of Fenton degradation of painting wastewater
YUAN Yi, ZHAI Jingjing, BU Zhiwei, CHEN Weixiao, XIE Yiyi. Influencing factors and kinetic analysis of Fenton degradation of painting wastewater[J]. Chinese Journal of Environmental Engineering, 2022, 16(10): 3221-3231. doi: 10.12030/j.cjee.202201029
Authors:YUAN Yi  ZHAI Jingjing  BU Zhiwei  CHEN Weixiao  XIE Yiyi
Affiliation:1.School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China; 2.Jiangsu Collaborative Innovation Center of Water Treatment and Materials, Suzhou 215009, China; 3.National and Local Joint Engineering Laboratory of Urban Domestic Sewage Resource Utilization Technology, Suzhou 215009, China; 4.Suzhou Environmental Protection Co. Ltd, Suzhou 215009, China
Abstract:The painting wastewater of an electric bike manufacturing enterprise in Jiangsu was taken as the research object, single factor and response curve tests were conducted to optimize the Fenton oxidation conditions, and the corresponding kinetics of this process was also analyzed. The results show that when pH was 3.21, the molar ratio of H2O2 to Fe2+ was 8∶1 and the mass ratio of H2O2 to COD was 4.17∶1, the removal rates of COD and TP could reach their own highest values of 81.32% and 98% after 120 min Fenton oxidation, respectively. The degradation process accorded with the first-order reaction kinetics, the degradation coefficient k and the activation energy were 0.0142 min−1 and 4.76 kJ·mol−1 at room temperature, respectively. Under the conditions of pH 3.21, n(H2O2/Fe2+) of 8∶1, m(H2O2/COD) of 0.78:1, the Fenton semi-oxidation reaction system could remove about 42.5% of COD within 120 min, and the B/C ratio of the treated wastewater increased from 0.12 to 0.35. Considering the economic factors, it is better to recommend the coupled process of Fenton semi-oxidation and biological treatment to treat the actual painting wastewater.
Keywords:fenton oxidation  painting wastewater  response surface methodology  kinetics
点击此处可从《环境工程学报》浏览原始摘要信息
点击此处可从《环境工程学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号