摘要：
以粉煤灰为主要原料制备复合无机高分子絮凝剂——聚硅磷氯化铝铁(PSPAFC),通过正交实验考察了原料的最佳配比,并对活化过程中的pH范围进行研究。结果表明,制备聚硅磷氯化铝铁的最佳原料配比为n(SiO2)∶n(Al+Fe)为2∶1,n(Al)∶n(Fe)为7∶3,n(P)∶n(Al+Fe)为3∶20,活化硅酸的最佳pH为2.5~3.5。将制备的PSPAFC用于模拟废水的处理,并与聚合氯化铝PAC、聚合氯化铝铁PAFC进行比较,结果表明,PSPAFC具有更好的絮凝效果。
关键词:
粉煤灰,
聚硅磷氯化铝铁,
无机高分子絮凝剂
Abstract:
Inorganic polymer flocculant poly-siliceous phosphoric aluminum ferric chloride（PSPAFC）has been prepared by using fly ash, sodium silicate and sodium phosphate as raw materials.According to the 3-factor orthogonal test, the conditions of preparing PSPAFC are optimized: n(SiO2):n(Al+Fe) is 2:1, n(Al):n(Fe) is 7:3, n(P):n(Al+Fe) is 3:20, pH of activated silicic acid is 2.5-3.5. The PSPAFC prepared by these ratios is used for treating the simulated wastewater. The results show that PSPAFC has better flocculating effect, compared with PAC and PAFC.
Key words:
fly ash,
poly-siliceous and phosphoric aluminum and ferric chloride(PSPAFC),
inorganic polymer flocculant
中图分类号:
兰善红, 杨丹, 范洪波, 武秀文. 新型粉煤灰絮凝剂的制备及其应用研究[J]. 工业水处理, 2011, 31(1): 61-63.
Lan Shanhong, Yang Dan, Fan Hongbo, Wu Xiuwen. Preparation of new fly ash flocculant PSPAFC and its application to the simulated wastewater[J]. INDUSTRIAL WATER TREATMENT, 2011, 31(1): 61-63.