| 复合絮凝剂CAM-CPAM的制备及其污泥脱水性能 |
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| 引用本文： | 吴幼权,郑怀礼,张 鹏,焦世□,杨 铀.复合絮凝剂CAM-CPAM的制备及其污泥脱水性能[J].环境科学研究,2009,22(5):535-539. |
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| 作者姓名： | 吴幼权 郑怀礼 张 鹏 焦世□ 杨 铀 |
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| 作者单位： | 1.重庆大学城市建设与环境工程学院,重庆 400045 |
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| 基金项目： | 国家自然科学基金，重庆市自然科学基金重点项目 |
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| 摘 要： | 在氮气保护下，以硝酸铈铵为引发剂，采用壳聚糖与有机单体丙烯酰胺接枝共聚得到壳聚糖衍生物(CAM)，并将其与阳离子聚丙烯酰胺(CPAM)复配，制备了一种复合絮凝剂CAM-CPAM. 通过红外图谱(IR)和电镜扫描(SEM)分析，对复合絮凝剂CAM-CPAM的结构进行了表征，对污泥脱水机理进行了探讨，并考察了复合絮凝剂用量对污泥脱水、沉降性能以及对滤液浊度和透光率的影响. 结果表明，复合絮凝剂CAM-CPAM具有良好的污泥脱水性能，当其投加量为30 mg/L时，污泥脱水率可达90%以上，沉降速率可达0.55 cm/s，滤液浊度小于8 NTU，透光率高于85%.
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| 关 键 词： | 壳聚糖 丙烯酰胺 接枝共聚 污泥脱水 复合絮凝剂 |
| 收稿时间： | 2008/8/16 0:00:00 |
| 修稿时间： | 2008/10/8 0:00:00 |
Sludge Dewatering Performance and Preparation of Composite Flocculants CAM-CPAM |
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| WU You-quan,ZHENG Huai-li,ZHANG Peng,JIAO Shi-jun and YANG You.Sludge Dewatering Performance and Preparation of Composite Flocculants CAM-CPAM[J].Research of Environmental Sciences,2009,22(5):535-539. |
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| Authors: | WU You-quan ZHENG Huai-li ZHANG Peng JIAO Shi-jun and YANG You |
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| Institution: | 1.Faculty of Urban Construction & Environmental Engineering, Chongqing University, Chongqing 400045, China2.Faculty of Urban Construction & Environmental Engineering, Chongqing University, Chongqing 400045, China;Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, China3.College of Chemistry Engineer, Chongqing University, Chongqing 400044, China |
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| Abstract: | Modified chitosan was made by graft co-polymerization of chitosan and acrylamide under nitrogen atmosphere using ceric ammonium nitrate as initiator.The modified chitosan was then combined with cationic polyacrylamide(CPAM) to obtain a kind of composite flocculant called CAM-CPAM,which was used to treat activated sludge.The structure of CAM-CPAM was characterized by IR and SEM,and the mechanism of dewatering was analyzed.The factors affecting sludge dewatering performance were discussed in this study,includ... |
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| Keywords: | chitosan acrylamide grafting copolymerization sludge dewatering complex flocculants |
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