摘要
研究了壳聚糖与海藻酸钠复合后的絮凝特征。实验结果表明,壳聚糖与海藻酸钠制备的复合絮凝剂絮凝效果好,复合比例在1∶1的情况下,絮凝效果为最佳,有明显的脱色作用。用壳聚糖与海藻酸钠复合絮凝剂的作用效果受pH值影响,不同pH值下,脱色效果都是随着复合絮凝剂投加量的增多而提高,但超过一定用量后,脱色效果反而下降,同时在偏酸性条件下,脱色效果最好。复合絮凝剂具有除浊、脱色效果好,投药量低,在达到良好除浊效果的同时还能去除一定的铜离子和铬离子,并且有一定的COD去除率。
The Flocculation Characteristics of chitosan and sodium alginate were studied in this paper.The experimental results show that the composite flocculant prepared by chitosan and sodium alginate has good flocculation effect, and the flocculation effect is the best when the ratio is 1 ： 1.Effect of chitosan and sodium alginate composite flocculant is affected by the pH value, pH value, the decolorization effect are increased with the increased amount of composite flocculant, but more than a certain amount, the decolorization effect decreased, while in acidic conditions, the decolorization effect is the best.The compound flocculant has good effect of removing turbidity and decoloring, and low dosage.It can also remove some copper ions and chromium ions in the removal of turbidity, and has a certain COD removal efficiency.
出处
《化工设计通讯》
CAS
2017年第3期125-126,共2页
Chemical Engineering Design Communications
基金
湖北省教育厅科学技术研究项目指导性项目(B类项目)(2015SK009)
关键词
壳聚糖
海藻酸钠
脱色
chitosan
sodium alginate
decolorization
