摘要
采用Fe/Al/C多元微电解-H_(2)O_(2)工艺处理农药生产废水。通过间歇实验考察了该工艺的运行参数,结果显示在初始p H值为4、Na_(2)SO_(4)投加量为0.03 mol/L、H_(2)O_(2)投加量为1.5 m L/L和反应时间为80 min的条件下对农药生产废水的处理效果最佳。在连续运行条件下,该工艺对农药生产废水中COD的平均去除率为88.5%,平均生物毒性削减率为63.7%,B/C值由0.126提高到0.341。Fe/Al/C多元微电解-H_(2)O_(2)工艺降解农药生产废水的过程符合一级动力学反应,速率常数k_(COD)=0.018 8min^(-1),相关系数R^(2)=0.989 8。农药生产废水经过Fe/Al/C多元微电解-H_(2)O_(2)工艺处理后,有机物各基团的UV-Vis光谱强度都得到了显著削减,即有机物被有效降解。
Fe/Al/C multiple micro-electrolysis and H_(2)O_(2) process was applied in pesticide wastewater treatment.The operation parameters were determined by intermittent experiment,and performance of the process for pesticide production wastewater treatment was the best under the following conditions:the initial p H was 4,dosages of Na_(2)SO_(4) and H_(2)O_(2) were 0.03 mol/L and 1.5 m L/L and the reaction time was 80 min.The performance of the process for pesticide production wastewater treatment under continuous operation was explored.The average COD removal efficiency was 88.5%,the average biological toxicity reduction rate was 63.7%,and the average B/C ratio was increased from 0.126 to 0.341.The degradation process of pesticide production wastewater by Fe/Al/C multiple micro-electrolysis and H_(2)O_(2) process conformed to first-order kinetic reaction,and the rate constant k_(COD) and correlation coefficient R^(2) were 0.018 8 min^(-1) and 0.989 8,respectively.After the treatment of pesticide production wastewater by Fe/Al/C multiple micro-electrolysis and H_(2)O_(2)process,the UV-Vis spectral intensity of organic groups was significantly reduced,indicating that the organic compounds were effectively degraded.
作者
杨瑞洪
钱蕊
雍达明
YANG Rui-hong;QIAN Rui;YONG Da-ming(College of Chemical Engineering,Yangzhou Polytechnic Institute,Yangzhou 225127,China;Jiangsu Jia Yi Safety Environment Technology Service Co.Ltd.,Nanjing 210000,China)
出处
《中国给水排水》
CAS
CSCD
北大核心
2022年第5期91-95,共5页
China Water & Wastewater
基金
江苏省高校“青蓝工程”中青年学术带头人项目(苏教师[2021] 11、苏教师[2019] 3)
扬州市市校合作专项(YZ2021171)
省高等学校优秀科技创新团队项目(苏教科[2021] 1号)
国家自然科学基金资助面上项目(51979077)
江苏省自然科学基金资助面上项目(BK20191220)
江苏省产学研合作项目(BY2020670)。
