几种聚硅酸铝-多糖复合絮凝剂的性能比较

发布时间：2018-03-02 08:08

本文关键词： 聚硅酸铝多糖淀粉纤维素壳聚糖　出处：《水处理技术》2017年11期 　论文类型：期刊论文

【摘要】：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。
[Abstract]:Three new organic-inorganic flocculants were prepared by using sodium silicate, aluminum sulfate, chitosan CTSU / edible starch stout / carboxymethyl cellulose sodium CMCas as main raw materials. The microstructure characteristics of polysilicate aluminum-chitosan (PSI Al-CTSN), polysilicate aluminum-starch (PSI Al-Stan), polysilicate aluminum-cellulose (PSiAl-CMC) were studied by scanning electron microscope. The water sample temperature of several flocculants during flocculation was investigated. The effect of water sample pH, precipitation time and dosage on flocculation effect of simulated river water sample was discussed. Finally, the differences of three flocculants in performance and economic benefit were discussed. The results showed that the flocculation performance of polysilicate aluminum-cellulose was the best. The highest turbidity removal rate can reach 97.84 and the raw material cost of producing 1 t polysilicate aluminum-cellulose flocculant is the least, which is 56.17 yuan.
【作者单位】：吉林化工学院化学与制药工程学院;
【基金】：国家自然科学基金(21375046) 吉林省科技发展计划项目(20140203013GX,20130521024JH) 吉林市科技发展计划项目(201232402)
【分类号】：TB332;X52

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