无机高分子复合絮凝剂的研制趋向

Trend in the Development of Composite Inorganic Polymer Flocculants

复合型无机高分子絮凝剂的研制在我国成为一种发展趋势，对其需要有科学的认识。以聚硅酸加强铝、铁聚合物的粘结聚集能力时，要同时考虑其电中和能力的减弱，达到净增絮凝效果。实验表明，聚合硅酸铁、聚合硅酸铝都符合这一规律，它们大多是以卷扫絮凝方式发挥作用。

Development of composite inorganic polymer flocculants becomes a new tendency in the field of water and wastewater treatment. A scientific understanding is necessary for the development. When using poly-silicate to ferric or aluminum polymers to strengthen their aggregation function, the offset of lower charge-neutralization effect should be considered at the same time,so that improving net flocculation effciency could be reached. Experiments results showed that poly-ferric-silicate and poly-aluminum-silicate demonstrated this principle,and they served the function of entrainment flocculation.