中国海洋湖沼学报（英文版）2009，Vol.27Issue(4)：875-881,7.DOI:10.1007/s00343-009-9187-y
Dyeing and printing wastewater treatment using fly-ash coated with chitosan
Dyeing and printing wastewater treatment using fly-ash coated with chitosan
摘要
Abstract
Printing and dyeing industry is a considerable source of environmental contamination. In this study treatment of printing and dyeing wastewater with a new type of sewage treatment agent, fly-ash coated with chitosan particles (FCCP), was examined. The effects of pH, stirring time, sedimentation time and temperature on color, COD, turbidity and NH_3-N removal were determined. The optimum dosage of FCCP and the influence of individual factors on removal efficiency were tested. The optimum parameters determined using the L_(16)(4~5) orthogonal experiment were as follows: FCCP (weight ratio of chitosan to fly-ash 1:6) dosage, 4 g·L~(-1); temperature, 35°C; pH, 4. The stirring time and sedimentation time were 20 min and 5 h, respectively. Under these optimum conditions, the color, COD and NH_3-N removal ratios were 97%, 80% and 75%, respectively.关键词
FCCP/ printing and dyeing wastewater/ treatment/ color removal/ COD removalKey words
FCCP/ printing and dyeing wastewater/ treatment/ color removal/ COD removal分类
海洋科学引用本文复制引用
CHEN Xin,SUN Huili..Dyeing and printing wastewater treatment using fly-ash coated with chitosan[J].中国海洋湖沼学报（英文版）,2009,27(4):875-881,7.基金项目
Supported by the Science and Technology Development Foundation of Foshan (No. 2005060071) （No. 2005060071）
