摘要
随着污泥成分的复杂化,与无机絮凝剂相比有机高分子絮凝剂展示出优异的脱水性能。文中阐述了近年来用于污泥脱水的各类有机高分子絮凝剂及其在污泥脱水中的最新应用研究、污泥脱水方法和影响污泥脱水性能的因素。对絮凝剂的选择和污泥处理方法进行总结,得出:(1)选择阳离子性基团总数大于阴离子性基团总数的一种或多种絮凝剂;(2)采用先加入含有阳离子(或阳离子性)基团的无机(或有机)絮凝剂,然后加入分子量较高的有机高分子絮凝剂(两性型、阳离子型、非离子型或阴离子型)的污泥脱水方法。
With the components of the sludge becoming various, the organic high molecular weight flocculant is more important for dewatering sludge. The kinds and the applied investigates of the organic high molecular weight flocculants for dewatering sludge, the method for dewatering sludge, and the influence factors of the dewaterability, that was described. Then, the conclusion can be come out: (1) Selected one or more flocculants for dewatering sludge, wherein the total amount of cationic units of the flocculants is more than the total amount of anionic units of the flocculants; (2) Initially, the dewatering sludge is dosed with the inorganic coagulant or the cationic flocculants. Then the resulting mixture is dosed with the high molecular weight flocculant, which is amphoteric, cationic, nonionic or anionic flocculant.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2004年第5期55-58,62,共5页
Polymer Materials Science & Engineering
基金
山西省青年基金项目(20031018)
