| 河湖疏浚淤泥的表征、絮凝和脱水 |
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| 引用本文： | 李冲,吕志刚,陈洪龄,许超,常健.河湖疏浚淤泥的表征、絮凝和脱水[J].环境工程学报,2013,7(2):737-742. |
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| 作者姓名： | 李冲 吕志刚 陈洪龄 许超 常健 |
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| 作者单位： | 1. 江苏江达生态科技有限公司,无锡214061;江苏省河海湖泊生态修复与资源化工程技术研究中心,无锡214061
2. 江苏江达生态科技有限公司,无锡214061;南京工业大学化学化工学院,南京210009 |
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| 基金项目： | 江苏省科技支撑(社会发展)计划项目(BE2010636);江苏省科技基础设施建设计划(BM2010668) |
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| 摘 要： | 以无锡锡山湿地公园河道淤泥及太湖贡湖湾疏浚底泥为研究对象,对比分析了两种淤泥的矿物组成、粒径分布及泥微粒表面基团、ζ电位等理化特性。以聚丙烯酰胺类聚合物(polyacrylamide,PAM)为絮凝剂,对比分析了其在2种底泥絮凝分离、真空抽滤脱水过程中的作用特征,并对相关影响因素进行了探讨。结果表明,两种淤泥样具有相近的主体矿物组分、有机基团及ζ电位值,但有机质含量稍高的淤泥样中大颗粒所占比例相对较高。相比阳离子型PAM,阴离子型PAM在较少用量下即可获得较大絮团,但上清液浊度较高。絮凝泥在抽滤过程受絮团尺寸影响较大,PAM不同类型基团间的差异对其影响较小,但对趋于平衡后的泥饼含水率略有影响。
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| 关 键 词： | 疏浚淤泥 聚丙烯酰胺 絮凝 脱水 |
Characterization, flocculation and dehydration of dredged sludge |
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| Li Chong,Lü Zhigang,Chen Hongling,Xu Chao,Chang Jian.Characterization, flocculation and dehydration of dredged sludge[J].Techniques and Equipment for Environmental Pollution Control,2013,7(2):737-742. |
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| Authors: | Li Chong Lü Zhigang Chen Hongling Xu Chao Chang Jian |
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| Institution: | 1. Jiangsu Jiangda Biological Technology Co. Ltd., Wuxi 214061, China;2. Jiangsu Engineering Technology and Research center of Surface Waters Ecological Restoration and Utilization, Wuxi 214061,China;1. Jiangsu Jiangda Biological Technology Co. Ltd., Wuxi 214061, China;2. Jiangsu Engineering Technology and Research center of Surface Waters Ecological Restoration and Utilization, Wuxi 214061,China;1. Jiangsu Jiangda Biological Technology Co. Ltd., Wuxi 214061, China;3. College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China;1. Jiangsu Jiangda Biological Technology Co. Ltd., Wuxi 214061, China;2. Jiangsu Engineering Technology and Research center of Surface Waters Ecological Restoration and Utilization, Wuxi 214061,China;1. Jiangsu Jiangda Biological Technology Co. Ltd., Wuxi 214061, China;2. Jiangsu Engineering Technology and Research center of Surface Waters Ecological Restoration and Utilization, Wuxi 214061,China |
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| Abstract: | |
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| Keywords: | dredged sludge polyacrylamide flocculation dewater |
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