聚硅锌絮凝剂的研制和性能

摘要

以硅酸钠、硫酸锌为原料制备了聚硅酸锌无机高分子絮凝剂(PZSS),获得适宜的制备条件为:w(SiO2)％=3％,n(Zn2+)(Si)--1.5,絮凝性能测试条件:投加量为1.0 ml/L,pH值为6.4,,8.0,沉降时间为10 min.与聚硅酸铝和硫酸锌比较试验结果表明,PZSS在去浊率、絮凝体体积和沉降时间等均具有明显优势.%Inorganic polymer flocculants, poly-zinc-silicate-sulfate (PZSS) was prepared by sodium silicate and zinc sulfate. The suitable preparation condition were as follows: w(SiO2)%=3%, n(Zn2+)(Si)=1.5. The result showed that appropriate operating condition were as follows: PZSS dosage 1ml/L, the pH value of the sample liquid 6.4-8.0, the standing time 10 min. The experimental results showed that PZSS has many obvious advantages. Compared with PASS and ZnSO4, PZSS has evident superiority in the aspects of flocculation effects, dosage and time of coagulation.