PDF(900 KB)
Preparation and flocculation behavior of iron-chitosan flocculant
TIAN GuoPeng;ZHANG Wen;WEI Gang;XIONG RongChun
Journal of Beijing University of Chemical Technology ›› 2008, Vol. 35 ›› Issue (4) : 47-51.
PDF(900 KB)
PDF(900 KB)
Preparation and flocculation behavior of iron-chitosan flocculant
Chitosan (CTS) has been modified by inorganic impregnation to prepare an CTS-Fe flocculant. The flocculation behavior of the resulting material was investigated with kaoline. The results showed that the optimum conditions are as follows: a dosage of CTS-Fe of 5mg/L, a molar ratio in the flocculant of m(CTS)∶m(Fe)=2∶1, and a pH of 7. Under these conditions, the sedimentation rate with kaoline was 88.75%. The flocculation efficiency of CTS-Fe was found to be superior to those of chitosan, polyiron (PFC) and polyiron-chitosan and a lower dosage of CTS-Fe is required.
［1］ Bratskaya S, Schwarz S, Chervonetsky D. Comparative study of humic acids flocculation with chitosan hyd rochloride and chitosan glutamate［J］. Water Research, 2004, 38(12):2955-2961.
［2］ 蒋挺大. 壳聚糖［M］. 北京：化学工业出版社, 2001, 3:6-10.
［3］ 刘维俊. 壳聚糖对硅藻土悬浮液带电离子体系的絮凝行为［J］. 太原理工大学学报, 2001, 32(6): 654-656.
［4］ 郝月,张晶,杨翔华. 利用壳聚糖预处理高浓度味精废水［J］. 水资源保护,2006,22(6):51-56.
［5］ 华登峰. 壳聚糖、硫酸铝、聚铝对印染废水脱色处理的对比［J］. 青岛大学学报, 2004, 19(3): 65-68.
［6］ Chiou M S， Li H Y. Adsorption behavior of reactive dyes from aqueous solution on chitosan［J］. Chemosphere, 2003, 50(8):1095-1105.
［7］ Clark T. Phosphate removal in anaerobic liquors by struvite crystallization without addition of chemicals: Preliminary results［J］. Water Research, 1997, 31(11):2925-2929.
［8］ 徐海宏,李满,唐海香. 壳聚糖对煤泥水的絮凝作用分析［J］. 选煤技术, 2007(1):16-17.
［9］ 张莉红,衣守志. 铁系无机高分子絮凝剂的研究进展［J］. 天津科技大学学报, 2004, 19(2):10-13.
PDF(900 KB)
/
| 〈 |
|
〉 |
