环境工程学报2012，Vol.6Issue(9)：3063-3067,5.
响应曲面法优化复合絮凝剂的制备工艺
Preparation technique optimization of composite flocculant by response surface methodology
摘要
Abstract
The main purpose of this paper is to discover the optimum formulation of a novel poly-silcic flocculation by response surface methodology（RSM） to improve the COD and chroma removal efficiency.Based on the single factor experiments,Box-Behnken Design（BBD） method was used to arrange the 15-run trial,in which the mole ratio of Fe/Al to Si n（Fe＋Al）：n（Si） was from 4 to 6,n（B＋Mg）：n（Si） 0.3 to 0.7,the aging time was 1 d to 3 d.The experimental data were processed by the software Design-Expert 7.1.The RSM analysis results show that,under the preparation conditions of n（Fe＋Al）：n（Si）=5∶ 1,n（B＋Mg）：n（Si）=0.5∶ 1,aging time=2 d,the prepared poly-silcic Al-Fe-B-Mg flocculation（PSAFBM） has the best flocculation performance and decolorization effect.The outlet chroma was approaching zero,and the COD removal efficiency reached 87.65%.The experimental data and model predications match well,which means that the RSM is very efficient in optimizing the preparation conditions of the composite flocculant.关键词
响应曲面法/BBD/复合絮凝剂/染料废水Key words
response surface methodology (RSM)/box-behnken design (BBD)/composite flocculant/dyeing wastewater分类
资源环境引用本文复制引用
徐建平,周润娟..响应曲面法优化复合絮凝剂的制备工艺[J].环境工程学报,2012,6(9):3063-3067,5.基金项目
安徽省自然科学基金重大资助项目 （）
