摘要
以三氯化铝和有机高分子PGA为原料,采用碱滴定方法,制备了复合絮凝剂CPAC,并采用电泳技术比较了PAC与CPAC的电动特性,结果表明PAC与PGA复合后能够显著地提高絮凝颗粒的ξ电位,在相同Al(Ⅲ)投量的情况下,O/A比越高,悬浊液体系ξ电位上升越快。以B=2.0的CPAC为例,Al(Ⅲ)投量为5mg/L,O/A=0,0.05,0.1的CPAC悬浊体系ξ电位分别为-8.9mV,-6.9mV,2mV。这说明在低O/A比值的情况下,吸附电中和作用增强是CPAC絮凝效果强于PAC的主要原因。
Composite polymeric aluminum chloride（CPAC）made from polymeric aluminum chloride（PAC）and cationic polymer flocculant PGA was prepared. The results showed that CPAC was verified to be more rapid in improving theξpotential of flocculating grains than PAC.When B=2.0 and dose of Al（Ⅲ）was 5 mg/L, theξpotential was-8.9 mV,-6.9 mV,2 mV relating to CPAC whose O/A was 0,0.05,0.1 respectively.
出处
《广东化工》
CAS
2010年第6期39-40,共2页
Guangdong Chemical Industry
关键词
复合絮凝剂
聚合氯化铝(PAC)
除浊
composite flocculant
polymeric aluminum chloride（PAC）
turbidity removal
