摘要
研究了稀土—聚硅酸硫酸铁(RE—PFSS)和稀土—聚硅酸硫酸铝(RE—PASS)的制备与絮凝性能。研究结果表明,稀土与二氧化硅的摩尔比n(RE3+)∶n(SiO2)、陈化时间等因素对其稳定性及絮凝性均产生影响,控制适宜的摩尔比和陈化时间可明显地提高絮凝剂的稳定性和絮凝性能。通过对模拟水样进行絮凝试验表明,稀土—聚硅酸硫酸铁(铝)的稳定性、絮凝效果优于聚硅酸硫酸铝(PASS)、聚硅酸硫酸铁(PFSS)。当陈化15天时,RE—PASS和RE—PFSS投加量为0.085mL/L时,絮凝效果最佳。
In this paper,preparation and evaluation of rare earth-polymeric ferric silicate sulfate and rare earth-polymeric aluminum silicate sulfate are investigated.The findings suggest that stability and coagulation effect are influenced by the factors of mole ratio n（RE3＋）：n（SiO2） and aging time.Stability and coagulation effect can be obviously enhanced through controlling feasible mole ratio and aging time.Flocculant experiment with simulative water demonstrates that the stability and turbidity removal of rare earth-polymeric ferric（aluminum） silicate sulfate are superior to polymeric aluminum silicate sulfate（PASS） and polymeric ferric silicate sulfate（PFSS）.When the dosage of RE-PASS and RE-PFSS are 0.085ml/L and aging time is 15 days,the coagulation effect is optimum.
出处
《稀土》
EI
CAS
CSCD
北大核心
2011年第6期23-26,共4页
Chinese Rare Earths
基金
内蒙古自然科学基金资助项目(200607010211)
包头市科技计划资助项目(2007C2016)
关键词
稀土复合絮凝剂
聚硅酸硫酸铁(铝)
稳定性
浊度去除率
rare earth composite flocculant
polymeric ferric（aluminum） silicate sulfate
stability
turbidity removal
