PFS混凝-光催化氧化深度处理焦化废水试验研究  

Experimental study of advanced treatment of coking wastewater using PFS coagulation-photocatalytic oxidation technology

作　　者：张垒[1] 王凯军[2] 刘霞[2] 刘璞[1] 薛改凤[1] 吴高明[1] 黄建阳 

机构地区：[1]武汉钢铁(集团)公司研究院,湖北武汉430080 [2]武汉平煤武钢联合焦化公司,湖北武汉430082 [3]武钢(北京)新材料研究中心,北京102200

出　　处：《现代化工》2014年第7期77-80,共4页Modern Chemical Industry

基　　金：国家科技支撑计划课题(2012BAC02B04)

摘　　要：采用PFS混凝-光催化氧化剂法对经过二级生化处理后的焦化废水进行深度处理。在光催化氧化反应一定的条件下,考察了废水中影响TOC去除率的因素及废水处理效果,并与普通光催化氧化法TOC去除效果进行了对比。通过单因素试验确定的反应体系中各参数的最佳条件分别为:TiO2投加量为4 g/L,光照反应时间为4 h,pH为5.1,PFS投加量为700 mg/L,TOC去除率可达到81%。A PFS coagulation-photocatalytic oxidation technology is used for advanced treatment of coking wastewater after secondary biological treatment. The effects of some key factors on TOC removal rate are investigated. The results are compared with those of the common photocatalytic oxidation technology under the operating parameters of the photocatalytic oxidation defined. Single factor experimental results show that TOC removal rate can reach 81%,when optimal operating conditions are as follows： 4. 0 g /L of TiO2loading,4 hours of irradiation time,5 of initial pH and 700mg /L of PFS dosage.

关 键 词：焦化废水 PFS混凝 光催化氧化法 TOC去除率 深度处理 

分 类 号：X703.1[环境科学与工程—环境工程]