TiO_2/膨润土催化剂降解工业废水研究  

Study on TiO_2 /Bentonite Catalyst to Treat Industrial Wastewater

作　　者：刘月娥[1] 庞桂林[1] 甄卫军[1] 侯晋朝[1] 田小红[1] 周涛[1] 

机构地区：[1]新疆大学

出　　处：《金属矿山》2009年第11期157-161,共5页Metal Mine

基　　金：新疆维吾尔自治区教育厅科研计划重点项目(编号:XJEDU2004I01);新疆大学2008科研实践训练创新项目(编号:XJU-SRT-Y08020)

摘　　要：以改性的新疆乌兰陵格膨润土、钛酸丁酯和四氯化钛为原料,制备PEG改性TiO2/膨润土催化剂和TiO2/柱撑膨润土催化剂。将两种催化剂分别应用于新疆某毛纺厂印染废水、甲基橙模拟印染废水、某石化废水进行降解研究。研究结果:PEG改性TiO2/膨润土催化剂对甲基橙模拟印染废水的最高降解率2h达87.67%,TiO2/柱撑膨润土催化剂对某石化废水的最高降解率2h达78.12%。而两者对新疆某毛纺厂废水的最高降解率2h内分别为44.15%,40.53%。还对PEG改性TiO2/膨润土催化剂的回收利用以及毛纺厂印染废水的二级降解进行了初探。Taking the modified bentonite, n-butyl titanate and titanium tetrachloride from Xinjiang Wulanlingge as the raw material, PEG modified TiO2/bentonite catalyst and TiO2/pillared bentonite catalyst are prepared. Then these two catalysts are respectively applied to treat dyeing wastewater from a Xinjiang woolen mill, methylorange simulated wastewater and petrochemical wastewater. The research showed that PEG modified TiO2/bentonite photocatalyst realized a maximum degradation rate to 87.67% at 2 h on methylorange simulated wastewater, and TiO：/pillared bentonite photoeatalyst realized the highest degradation rate to 78.12% at on the degradation of petrochemical wastewater. Meanwhile, both above mentioned can reach the highest degeneration rates of 44.15% and 40.53% respectively at 2 h on Xinjiang woolen mill waste water. The recycling recovery on the PEG modified TiO2/bentonite catalyst and the secondary degradation of woolen mill wastewater were also studied.

关 键 词：改性膨润土 钛柱撑 光催化 工业废水处理 

分 类 号：X703[环境科学与工程—环境工程] P579[天文地球—矿物学]