絮凝-光催化氧化处理造纸中段水  

STUDY ON THE TREATMENT FOR PAPERMAKING MIDCOURSE WASTEWATER BY FLOCCULATION-PHOTOCATALYTIC OXIDATION PROCESS

作　　者：李晓燕[1] 

机构地区：[1]乐山师范学院化学与生命科学学院,四川乐山614000

出　　处：《水处理技术》2010年第12期103-105,共3页Technology of Water Treatment

基　　金：四川省教育厅重点实验室资助课题(07ZS005);乐山市科技局重点项目(06GZD042)

摘　　要：以铁(氢)氧化物(am-Fe(OH)3)为混凝剂及光催化氧化剂,250 W高压汞灯(λ=313 nm)为光源,采用混凝-光催化氧化处理造纸中段废水。探讨了影响COD去除率的各种因素,确定了最佳的絮凝和光催化氧化条件。结果表明,在pH为5、am-Fe(OH)3质量浓度为2.5 g.L-1时,光照120 min,造纸中段废水中COD的去除率可达89.3%,同时能有效脱除造纸中段废水的颜色。The factors affecting the removal rate of COD are investigated in treating the papermaking midcourse wastewater by flocculation-photocatalytic oxidation process using iron（hydro） oxide（am-Fe（OH）3） as flocculant and photocatalytic oxidant and the optimal operation condition is obtained.The results show that 89.3% of COD can be removed after 120 min radiation in the solution containing am-Fe（OH）3 2.5 g·L-1 at pH 5.Meanwhile,the color of the wastewater can be eliminated effectively in the flocculation-photocatalytic oxidation process.

关 键 词：造纸中段废水 铁(氢)氧化物 絮凝 光催化氧化 

分 类 号：X793[环境科学与工程—环境工程]