A kind of environmental friendly novel composite flocculants which are used to treat raw water is prepared. It is made with chitosan (CS), iron modified polyaluminium chloride (CF-PAC) and modified montmorillonite on ...A kind of environmental friendly novel composite flocculants which are used to treat raw water is prepared. It is made with chitosan (CS), iron modified polyaluminium chloride (CF-PAC) and modified montmorillonite on the principle of “the combination of organic and inorganic”. Under the optimum best compound formula and flocculation process, the turbidity of the waste water reduced by 0.62%, the chemical cost decreased by 12.43% and the content of aluminium ions dropped by 70.65%. There is an excellent characteristic and higher efficiency on the composite flocculant which can adsorb the organic matter in the water and chelate the heavy metal ions in the water.展开更多
研究用壳聚糖、聚铝和助剂 A 复合制备出一种成本低、絮凝效果好、出水铝离子含量少的新型自来水处理絮凝剂,并确定其最佳配比为:v(0.1%壳聚糖):v(2%聚合氯化铝):v(0.1%助剂 A)=1:6:5。此絮凝剂与传统聚铝类絮凝剂相比,其出水浊度和铝...研究用壳聚糖、聚铝和助剂 A 复合制备出一种成本低、絮凝效果好、出水铝离子含量少的新型自来水处理絮凝剂,并确定其最佳配比为:v(0.1%壳聚糖):v(2%聚合氯化铝):v(0.1%助剂 A)=1:6:5。此絮凝剂与传统聚铝类絮凝剂相比,其出水浊度和铝离子质量分数分别下降了2.97%和10.7%,并且药剂成本下降6.25%,有明显的经济和环境效益。展开更多
文摘A kind of environmental friendly novel composite flocculants which are used to treat raw water is prepared. It is made with chitosan (CS), iron modified polyaluminium chloride (CF-PAC) and modified montmorillonite on the principle of “the combination of organic and inorganic”. Under the optimum best compound formula and flocculation process, the turbidity of the waste water reduced by 0.62%, the chemical cost decreased by 12.43% and the content of aluminium ions dropped by 70.65%. There is an excellent characteristic and higher efficiency on the composite flocculant which can adsorb the organic matter in the water and chelate the heavy metal ions in the water.
文摘研究用壳聚糖、聚铝和助剂 A 复合制备出一种成本低、絮凝效果好、出水铝离子含量少的新型自来水处理絮凝剂,并确定其最佳配比为:v(0.1%壳聚糖):v(2%聚合氯化铝):v(0.1%助剂 A)=1:6:5。此絮凝剂与传统聚铝类絮凝剂相比,其出水浊度和铝离子质量分数分别下降了2.97%和10.7%,并且药剂成本下降6.25%,有明显的经济和环境效益。