共查询到18条相似文献,搜索用时 109 毫秒
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刘敬发 《中国石油和化工标准与质量》2013,(6):20
改性淀粉絮凝剂具有绿色、无毒、价廉、易于生物降解、来源广泛等特点。离子化改性淀粉絮凝剂主要包括阴离子型改性淀粉絮凝剂、阳离子型改性淀粉絮凝剂、两性淀粉絮凝剂以及非离子型改性淀粉絮凝剂等。这几种不同类型的改性淀粉絮凝剂在不同类型的废水处理中取得了明显的效果。 相似文献
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天然淀粉改性絮凝剂研究与应用概况 总被引:7,自引:0,他引:7
天然淀粉及其改性絮凝剂是一种无毒、可生物降解的绿色化学品.本文介绍了淀粉改性的研究概况,并重点综述了淀粉絮凝剂改性途径及其在水处理和其它领域的应用. 相似文献
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Starch is a known carbohydrate in which, regardless of its origin, two polysaccharides are found namely amylose and amylopectin. By insertion of a cationic moiety to the backbone of starch, a modified cationic starch can be developed which can be used as flocculant. Various grades of cationic starches were developed to optimize the best performing flocculant. The base polysaccharide, starch and the best performing cationic starch i.e., Cat St3 (which have been confirmed from flocculation characteristics and intrinsic viscosity measurement) have been characterized by various characterization techniques such as determination of molecular weight, elemental analysis, FTIR spectroscopy, intrinsic viscosity measurement, thermal analysis, etc. From the characterization, it could be concluded that there was a substantial incorporation of cationic moiety onto the backbone of starch. The flocculation efficacy of these cationized starches was compared with each other and with some of the commercial flocculants available in national and international market in manganese ore suspensions. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008 相似文献
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有机絮凝剂的现状和未来 总被引:15,自引:0,他引:15
从絮凝剂在水处理的作用入手,简单介绍了有机絮凝剂的三大类别:即合成有机高分子絮凝剂、天然有机高分子改性絮凝剂和微生物絮凝剂,同时指出了有机絮凝剂的发展方向。 相似文献
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综述了非离子型、阴离子型、阳离子型改性淀粉絮凝剂的制备方法、研究进展及其在水处理中的应用。 相似文献
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天然高分子改性阳离子絮凝剂 总被引:2,自引:0,他引:2
介绍了高分子絮凝剂在水处理中的发展概况 ;根据物质的组分及来源对高分子絮凝剂进行了分类 ,并对天然有机高分子絮凝剂的性能及应用进行了论述 ;综述了近十多年来我国在改性淀粉絮凝剂方面的研究进展 ,并对今后的研究工作提出了一些建议 相似文献