壳聚糖包裹粉煤灰颗粒处理印染废水试验研究  

Research on Treatment of Printing & Dyeing Wastewater with Chitosan Wrapping Fly-ash

作　　者：陈忻[1] 夏世斌[2] 罗斌华[2] 罗观宇[1] 孙恢礼[3,4] 

机构地区：[1]佛山科学技术学院理学院,佛山528000 [2]武汉理工大学资源与环境工程学院,武汉430070 [3]中国科学院南海海洋研究所,广州510301 [4]中国科学院研究生院,北京100049

出　　处：《武汉理工大学学报》2008年第11期41-44,共4页Journal of Wuhan University of Technology

基　　金：广东省第一批科学事业费计划项目(2006B36530002);佛山市科技发展专项基金(2005060071)

摘　　要：以经过高温活化的粉煤灰与壳聚糖为原料,制备出不同质量配比的壳聚糖包裹粉煤灰颗粒(CWF),用于实际印染废水处理的试验研究。通过单因素与正交试验,研究了CWF用量、pH值、搅拌时间、温度等因素对脱色率、COD去除率、浊度和氨氮去除率等指标的影响。结果表明,CWF处理实际印染废水的最佳条件为:CWF-A浓度4 g/L,搅拌时间20 min,废水温度35℃,pH=4,沉降时间5 h,此时,COD去除率可达82%,脱色率及浊度去除率为97%,氨氮去除率为75%。CWF处理印染废水具有很好的应用前景。Different chitc,san wrapping fly-ash particles （CWFs） were prepared by using high-temperature activated fly-ash and chitosan. The actual printing and dyeing wastewater was treated by CWF. Effects of CWF concentration, pH, stirring time, and temperature on decolorization, COD removal, and turbidity and NH3-N removal were investigated. According to single-factor study and orthogonal test, research results show that the most suitable conditions are as follows： dosage of CWF-A 4 g/L, mixing time 20 min, temperature 35 ℃, pH 4, and 5 h settlement. On the optimal condition, COD removal is 80%, decolorization and turbidity up to 97 % and NH3-N removal 75 %.

关 键 词：壳聚糖包裹粉煤灰颗粒 印染废水 脱色 

分 类 号：O657.7[理学—分析化学]