Fenton法预处理合成革废水的去除研究  

Study on Removal of Synthetic Leather Wastewater Pretreatment by Fenton Process

作　　者：王来春 钱佳 熊晓敏 许柯 王庆 WANG Laichun;QIAN Jia;XIONG Xiaomin;XU Ke;WANG Qing(Yixing Environmental Research Institute of Nanjing University,Yixing 214200,Jiangsu,China;Jiangsu ZhongYiJinDa Analytical&Testing Co.,Ltd.,Yixing 214200,Jiangsu,China;School of the Environment,Nanjing University,Nanjing 210023,China)

机构地区：[1]南京大学宜兴环保研究院,江苏宜兴214200 [2]江苏中宜金大分析检测有限公司,江苏宜兴214200 [3]南京大学环境学院,南京210023

出　　处：《科技和产业》2024年第5期286-290,共5页Science Technology and Industry

基　　金：江苏省重大科技示范项目(BE 2023687)。

摘　　要：合成革废水中含有大量的二甲基甲酰胺(DMF)等有机污染物,对生物具有毒性危害。采用单因素试验方法,获得Fenton反应对DMF处理最佳工艺参数为pH=3、过氧化氢(H_(2)O_(2))与化学需氧量(COD_(Cr))的质量比m=6.69、H2O2与亚铁离子的摩尔比n=8及反应时间t=120 min, DMF的平均去除率达96.18%。在此基础上,利用Design-Expert软件中的响应面实验设计原理,设计三因素三水平共17组实验,进一步研究确定上述参数对Fenton法预处理合成革废水COD_(Cr)的去除效果。设计并制作针对DMF皮革废水有良好降解效果的Fenton一体化、H_(2)O_(2)和FeSO_(4)精准投加、pH精准调控的自动控制系统及集成反应设备,合成革废水的COD_(Cr)和DMF的平均去除率为71.87%和95.78%。Synthetic leather wastewater contains a lot of organic pollutants such as dimethylformamide(DMF),which is toxic to organisms.Single factor test method is adopted.The optimal process parameters of Fenton reaction for DMF treatment include pH=3,mass ratio of hydrogen peroxide(H 2O 2)to chemical oxygen demand(COD_(Cr))m=6.69,molar ratio of H_(2)O_(2) to ferrous ion n=8 and reaction time t=120 min.The average removal rate of DMF is 96.18%.On this basis,using the experimental design principle of response surface in Design-Expert software,17 groups of experiments with three factors,three levels and three levels were designed,and further study was conducted to determine the removal effect of the above parameters on COD_(Cr) of Fenton pretreatment synthetic leather wastewater The automatic control system with Fenton integration,H_(2)O_(2) and FeSO_(4) precision control and integrated reaction equipment with good degradation effect of DMF leather wastewater are designed and produced.The average removal rate of COD_(Cr) and DMF of synthetic leather wastewater is 71.87%and 95.78%.

关 键 词：FENTON反应 合成革废水 二甲基甲酰胺(DMF) 自动控制系统 

分 类 号：X522[环境科学与工程—环境工程]