Synthesis and characterization of composite flocculant PAFS-CPAM by response surface methodology

doi:10.3969/j.issn.0438-1157.2012.12.040

CIESC Journal ›› 2012, Vol. 63 ›› Issue (12): 4019-4027.DOI: 10.3969/j.issn.0438-1157.2012.12.040

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Synthesis and characterization of composite flocculant PAFS-CPAM by response surface methodology

ZHU Junren¹, ZHENG Huaili¹, ZHANG Zhi¹, JIANG Zhenzhen¹, GUAN Qingqing¹, TAN Mingzhuo², DAI Li¹, CHEN Wei¹

1. Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China;
2. Jiangmen Wealth Water Purifying Agent Co., Jiangmen 529000, Guangdong, China

Received:2012-04-28 Revised:2012-07-23 Online:2012-09-04 Published:2012-12-05
Supported by:
supported by the National Natural Science Foundation of China (51078366,21177164),the National Science and Technology Major Water Special Project in Water Pollution Control and Governance (2009ZX07315-002) and the Industrial Development Foundation of Chongqing(10-cxy-09).

响应面法优化制备PAFS-CPAM复合混凝剂及其表征

朱俊任¹, 郑怀礼¹, 张智¹, 蒋贞贞¹, 关庆庆¹, 谭铭卓², 戴力¹, 陈伟¹

1. 重庆大学教育部三峡库区生态环境重点实验室, 重庆 400045;
2. 江门慧信环保股份有限公司, 广东江门 529000

通讯作者: 郑怀礼
作者简介:朱俊任(1984-),男,博士研究生。
基金资助:
国家自然科学基金项目(51078366,21177164);国家重大科技专项水体污染控制与治理(2009ZX07315-002);重庆市工业发展资金(产研专项)项目(10-cxy-09)。

Abstract

Abstract: The composite flocculant was prepared by polymerizing CPAM(a cationic flocculant P:acrylamide-methacryloxyethyltrimethyl ammonium chloride-acryloxyethyltrimethyl ammonium chloride)and PFAS(polymeric aluminum ferric sulfate).The morphological distribution of Fe and Al was studied by using Ferron analysis,and the morphology of the copolymer was observed using scan electron microscopy.The Box-Behnken mathematical relational model between COD_Cr removal rate and affecting factors was established,and the technique composing PAFS-CPAM was optimized.The optimum synthesis conditions were: react temperature 61℃,react time 74 min,and Fe/CPAM mass ratio 28,respectively.At these optimized conditions and using 50 mg·L^-1 PAFS-CPAM flocculant prepared,COD_Cr removal and turbidity removal rates were 80.86% and 97.50%,respectively.

Key words: response surface methodology, synthesis, composite flocculant, polymeric aluminum ferric sulfate, cationic polyacrylamide

摘要： 以聚合硫酸铝铁(PAFS)与阳离子聚丙烯酰胺(CPAM)为原料,制备PAFS-CPAM复合混凝剂。通过Ferron法对产物的铁铝形态分布进行定量分析,用扫描电镜对产物的结构进行表征。采用响应面分析法通过建立COD_Cr去除率与各因素之间的Box-Behnken数学模型,对复合PAFS-CPAM的工艺进行优化。PFAS/CPAM最优制备工艺条件为:反应温度、反应时间和Fe/CPAM质量比分别为61℃、74 min、28。在最佳投加量50 mg·L^-1条件下,优化制备的PAFS-CPAM对生活污水COD_Cr去除率、浊度去除率分别达80.86%、97.50%。

关键词: 响应面法, 制备, 复合混凝剂, 聚合硫酸铝铁, 阳离子聚丙烯酰胺

CLC Number:

TQ316
X703.5

ZHU Junren, ZHENG Huaili, ZHANG Zhi, JIANG Zhenzhen, GUAN Qingqing, TAN Mingzhuo, DAI Li, CHEN Wei. Synthesis and characterization of composite flocculant PAFS-CPAM by response surface methodology[J]. CIESC Journal, 2012, 63(12): 4019-4027.

朱俊任, 郑怀礼, 张智, 蒋贞贞, 关庆庆, 谭铭卓, 戴力, 陈伟. 响应面法优化制备PAFS-CPAM复合混凝剂及其表征[J]. 化工学报, 2012, 63(12): 4019-4027.

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Synthesis and characterization of composite flocculant PAFS-CPAM by response surface methodology

响应面法优化制备PAFS-CPAM复合混凝剂及其表征

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