天津工业大学学报2013，Vol.32Issue(3)：56-60,5.
壳聚糖-TiO2复合絮凝剂的制备及其在印染废水处理中的应用
Preparation of composition flocculant of chitosan-TiO2 and its application in dyeing wastewater treatment
尚玉婷 1陈莉1
作者信息
- 1. 天津工业大学材料科学与工程学院,天津300387
- 折叠
摘要
Abstract
As a kind of natural macromolecule polymer,chitosan is readily available,nonpoisonous,and biodegradable.It is used in wastewater treatment increasingly and new methods and techniques have been developed.Modification is necessary for chitosan to be used as a flocculant.The mass ratio of chitosan and modified TiO2 was fixed to 3:1.The reaction was carried out at neutral conditions at 40 ℃ for 12 h.The composite flocculant was obtained by drying the product at 60 ℃.The factors of affecting the wastewater treatment ability of chitosan-TiO2 flocculant were explored.Chitosan-TiO2 flocculant can decompose the wastewater in only 200 min,showing high treatment rate.50 mL simulated wastewater can be decomposed by merely 0.25 g composite flocculant.Besides,the COD of the wastewater can also be decreased to 88.2％ by this composite flocculant.Compared to chitosan,chitosanTiO2 improve its decolorization rate and COD in the process of treatment of dyeing wastewater.关键词
壳聚糖/絮凝剂/印染废水/脱色率Key words
chitosan/ flocculant/ dyeing wastewater/ decolcorization rate分类
化学化工引用本文复制引用
尚玉婷,陈莉..壳聚糖-TiO2复合絮凝剂的制备及其在印染废水处理中的应用[J].天津工业大学学报,2013,32(3):56-60,5.
