中国造纸2013，Vol.32Issue(2)：30-35,6.
纳米TiO2胶体絮凝-光催化氧化-砂滤深度处理造纸废水研究
Advanced Treatment of Paper-making Wastewater Using Nano-TiO2 Colloid Coagulation,Photocatalyzed Oxidation and Sand Filtration Processes
摘要
Abstract
In this article, advanced treatment of paper-making wastewater by nano-TiO2 colloid coagulation, photocatalyzed oxidation and sand filtration was studied. The experimental such as the types and dosage of coagulatants, dosage of photocatalysts, illumination time and external oxidants were investigated. The results indicated that residual nano-TiO2, which can be removed by sand filtration will affect the determined CODCR, value. When the wastewater was pretreated by using 0.01% (on wastewater weight) nano-TiO2 as a coagulatant, then further treated by UV irradiation for 2 hours with using 0.05% nano-Ti02 as photocatalyst and under aeration, the upper water after sedimentation passed through sand filtration, the CODCr of the final effluent decreased from 210 mg/L to 43mg/L.关键词
造纸废水/絮凝/光催化氧化/砂滤Key words
paper-making wastewater/ coagulation/ photocatalyzed oxidation/ sand filtration分类
资源环境引用本文复制引用
张洪鑫,陈小泉..纳米TiO2胶体絮凝-光催化氧化-砂滤深度处理造纸废水研究[J].中国造纸,2013,32(2):30-35,6.基金项目
广东省部产学研结合专项资金项目(2007A090302069). （2007A090302069）
