几种复合磁絮凝剂在餐饮废水处理中的应用

Research on the application of several complex magnetic flocculants to restaurant wastewater

以COD去除率作性能参数,考察了PAC、PAFC、PFS三种絮凝剂及其复合磁絮凝剂在高、低两种浓度餐饮废水中的絮凝效果,并对PFS+PAM+磁粉组合的复合磁絮凝剂在高浓度餐饮废水中絮凝效果作了研究。结果表明,与普通絮凝剂相比,在高浓度餐饮废水中,PFS+PAM+磁粉组合的复合磁絮凝剂能进一步提高絮凝效果,缩短废水分离时间,并使污泥体积减少一半。磁场能大大缩短废水分离时间。

COD removal rate as a parameter, PAC, PAFC, PFS flocculants and their complex magnetic flocculants used in two defferent concentration restaurant wastewater are studied respectively. PFS ＋ PAM ＋ magnetic flocculants used in the restaurant wastewater with high concentration are systematically studied, too. The result indicates that comparing with ordinary flocculants, PFS ＋ PAM ＋ magnetic flocculants have better flocculating effectiveness, and shorten sedimentation time further, and reduce the sludge volume. Magnetic field can shorten the period of sedimentation greatly.