用聚硅酸硫酸铝铁处理洗煤废水试验研究  

Treatment of Coal Washing Wastewater by Polymeric Aluminum Ferric Silicate Sulfate

作　　者：杨依民 孔德顺 周鹏宇 蒋治卫 施兰 孙寻 YANG Yimin;KONG Deshun;ZHOU Pengyu;JIANG Zhiwei;SHI Lan;SUN Xun(School of Chemistry and Material Engineering,Liupanshui Normal University,Liupanshui 553004,China)

机构地区：[1]六盘水师范学院化学与材料工程学院,贵州六盘水553004

出　　处：《湿法冶金》2020年第5期405-408,共4页Hydrometallurgy of China

基　　金：贵州省教育厅创新群体项目(黔教合KY字[2017]054);贵州省科学技术基金资助项目(黔科合基础[2018]1142);贵州省大学生创新创业训练计划项目[2018520996];贵州省科技厅技术基金资助项目(黔科合J字[2012]2307号);六盘水市科技计划项目(52020-2018-04-01)。

摘　　要：研究了用硫酸铁、硫酸铝及硅酸钠为原料制备聚硅酸硫酸铝铁(PAFSS)絮凝剂,并考察用其处理洗煤废水时废水pH、PAFSS用量、聚丙希酰胺用量、搅拌时间(快速,慢速)对废水去浊率的影响。结果表明:用所制备的PAFSS处理800 mL洗煤废水,在废水pH=6.0、1%PAFSS用量2 mL、PAM用量3 mL、1000 r/min搅拌速度下快速搅拌3.0 min、60 r/min搅拌速度下慢速搅拌2.0 min条件下,废水去浊率为98.38%,效果较好。Polymeric aluminum ferric silicate sulfate(PAFSS)was prepared using ferric sulfate,aluminum sulfate and sodium silicate by microwave heating.The effects of wastewater pH,PAFSS dosage,polyacrylamide(PAM)dosage,fast stirring time and slow stirring time on removal rate of washing wastewater turbidity were examined.The results show that the removal rate of washing wastewater turbidity is 98.38%under the optimal conditions of wastewater pH of 6.0,1%PAFSS dosage of 2 mL,PAM dosage of 3 mL,rapid stirring time(1000 r/min)of 3.0 min and slow stirring time(60 r/min)of 2.0 min and wastewater volume of 800 mL,the treating effect is good.

关 键 词：聚硅酸硫酸铝铁 聚丙烯酰胺 洗煤废水 浊度 去除 

分 类 号：X703[环境科学与工程—环境工程]