用氯化铁废液制备聚合氯化铁并处理洗煤废水试验研究  

Preparation of Polymeric Ferric Chloride Using Ferric Chloride Waste Solution and Treatment of Coal-washing Wastewater

作　　者：孔德顺 王鲁凤[1] 蒋荣立 KONG Deshun;WANG Lufeng;JIANG Rongli(School of Chemistry and Materials Engineering,Liupanshui Normal University,Liupanshui 553004,China;School of Chemical Engineering,China University of Mining and Technology,Xuzhou 221016,China;Guizhou Key Laboratory of Coal Clean Utilization,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 [2]中国矿业大学化工学院,江苏徐州221016 [3]贵州省煤炭洁净利用重点实验室,贵州六盘水553004

出　　处：《湿法冶金》2020年第6期535-538,共4页Hydrometallurgy of China

基　　金：贵州省科技厅科学技术基金资助项目(黔科合基础[2018]1142);贵州省教育厅创新群体重大研究项目(黔教合KY字[2017]054);贵州省煤炭洁净利用重点实验室项目(黔科合平台人才[2020]2001);六盘水市科技计划项目(52020-2018-04-01)。

摘　　要：研究了用氯化铁废液制备聚合氯化铁(PFC)混凝剂并用于处理洗煤废水。试验结果表明:在铁离子浓度0.50 mol/L、体系pH=1.0、聚合时间3.0 h、聚合温度50℃条件下,可获得聚合氯化铁。用此聚合氯化铁处理洗煤废水,单因素试验结果表明:对于800 mL洗煤废水,在中性条件、1%聚合氯化铁用量5 mL、沉降40 min条件下,洗煤废水去浊率达98%以上,处理效果较好。The preparation of polymeric ferric chloride(PFC)coagulant using ferric chloride waste liquid and treatment of coal-washing wastewater using the coagulant were investigated.The results show that under the conditions of iron ion concentration of 0.50 mol/L,system pH of 1.0,polymerization time of 3.0 h,temperature of 50℃,the polymeric ferric chloride can be obtained.For 800 mL coal-washing wastewater,under the neutral condition,1%polymetic ferric chloride dosage of 5 mL and flocculation time of 40 min,the removal of turbidity is over 98%,the treatment effect is good.

关 键 词：氯化铁废液 聚合氯化铁(PFC) 混凝剂 洗煤废水 

分 类 号：X703[环境科学与工程—环境工程]