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以硅酸钠、硫酸铝、壳聚糖(CTS)/食用淀粉(St)/羧甲基纤维素钠(CMC)为主要原料制备了3种新型的有机-无机复合絮凝剂,使用扫描电镜对聚硅酸铝-壳聚糖(PSi Al-CTS)、聚硅酸铝-淀粉(PSi Al-St)、聚硅酸铝-纤维素(PSi Al-CMC)的微观形貌结构特征进行了研究,分别考察了几种絮凝剂在絮凝过程中水样温度、水样p H、沉淀时间和投加量对模拟江水水样絮凝效果的影响,最后讨论了3种絮凝剂在性能及经济效益上的差异,结果表明,聚硅酸铝-纤维素的絮凝性能最好,最高除浊率可达97.84%,生产1 t聚硅酸铝-纤维素絮凝剂的原料成本最少,为56.17元。
Three new types of organic-inorganic composite flocculants were prepared by using sodium silicate, aluminum sulfate, chitosan (CTS) / starch / sodium carboxymethyl cellulose (CMC) as raw materials. Scanning electron microscopy The microstructure features of PSi Al-CTS, PSi Al-St and PSi Al-CMC were studied , Respectively investigated several flocculants in the flocculation process water temperature, water samples p H, precipitation time and dosage on the simulated river water flocculation effect, and finally discussed the three kinds of flocculants in the performance and economic benefits The results showed that the best flocculation property of polysilicate aluminum-cellulose was 97.84%. The cost of raw material for producing 1t polysilicate-cellulose flocculant was the lowest, which was 56.17 yuan.