常见无机絮凝剂除磷效果及强化絮凝研究  

Effect of Common Inorganic Flocculants on Phosphorus Removal and Enhancement of the Flocculation Performance

作　　者：沈晓腾 张海涛 崔红玉 米瑞雪 马天宇 冷瑞利 SHEN Xiao-teng;ZHANG Hai-tao;CUI Hong-yu;MI Rui-xue;MA Tian-yu;LENG Rui-li(College of Chemical Engineering,Shandong University of Petrochemical Engineering,Shandong Dongying 257000,China)

机构地区：[1]山东石油化工学院化学工程学院,山东东营257000

出　　处：《广州化工》2024年第6期162-164,210,共4页GuangZhou Chemical Industry

基　　金：中国石油大学胜利学院大学生创新创业训练计划项目“絮凝-共聚气浮工艺深度除磷效能实验及参数优化研究”资助(2021033)。

摘　　要：研究了常见的无机絮凝剂聚合氯化铝(PAC)、硫酸铝、硫酸亚铁、聚合硫酸铁(PFS)、氯化铁在相同条件下除磷效果,结果表明:PAC>硫酸亚铁>硫酸铝>PFS>氯化铁。探究了不同pH、投加量、搅拌强度、搅拌时间、沉淀时间下PAC、硫酸亚铁与硫酸铝的除磷效果,对比显示PAC的除磷效果不同条件下均好于硫酸亚铁和硫酸铝。复配助凝剂(聚丙烯酰胺、草酸钠、硅藻土)强化絮凝的除磷效果研究表明,添加聚丙烯酰胺强化絮凝效果最好,最优工作条件下PAC和硫酸铝除磷率分别达到93.11%和73.89%。Study theeffect of phosphorus removal by common inorganic flocculants polyaluminum chloride(PAC),aluminum sulfate,ferrous sulfate,polyferric sulfate(PFS)and ferric chloride under the same conditions.The results showed that PAC>ferrous sulfate>aluminum sulfate>PFS>ferric chloride.The phosphorus removal effect of PAC,ferrous sulfate and aluminum sulfate under different pH,dosage,stirring intensity,stirring time and precipitation time was explored.The comparison showed that the phosphorus removal effect of PAC was better than that of ferrous sulfate and aluminum sulfate under different conditions.The study on the phosphorus removal effect of compound coagulant AIDS(polyacrylamide,sodium oxalate,diatomite)showed that the addition of polyacrylamide had the best effect,and the phosphorus removal rates of PAC and aluminum sulfate reached 93.11%and 73.89%,respectively,under the optimal working conditions.

关 键 词：絮凝 除磷 助凝剂 

分 类 号：X52[环境科学与工程—环境工程]