聚硅酸氯化铝铁处理含砷废水的实验研究  

Study on the Arsenic Removal from Wastewater by Polysilicate Aluminum Ferric Chioride

作　　者：王淑勤[1] 李蔷薇[1] 

机构地区：[1]华北电力大学环境科学与工程学院,河北保定071003

出　　处：《化工时刊》2006年第4期25-27,共3页Chemical Industry Times

摘　　要：对聚硅酸氯化铝铁混凝处理含砷废水进行了研究。考察了混凝剂用量,(Fe+Al)/SiO2物质的量比,碱化度对除砷率的影响。实验结果表明(Fe+Al)/SiO2=5∶1,B=0.1时,在pH值7.0,投加量为120 mg/L的条件下,聚硅酸氯化铝铁除砷率达90.5%。实际水样处理后的水质能够达到废水中砷的排放标准。并且通过红外光谱分析讨论了混凝除砷机理。The arsenic wastewater treated by polysilicate ferric aluminum chloride （PSFAC） was studied.The effect of dosage,Fe（Al）/SiO2 and（OH）/Fe（Al） （B）molar ratio on PSFAC for disposal of arsenic wastewater was investigated as well. It was shown that the arsenic removal efficiency of PSFAC was 90.5 % while pH is of 7.0, and the dosag of 120 mg/L, and molar ratio（Fe^3＋ ＋ Al^2＋ ）/SiO2 of 5 ： 1, and B of 0.1. The effluent of actual sample can meet the Chinese effluent discharge standard. The PSFAC was characterized by the infrared spectrometer（IR）. The arsenic removal mechanisms of PSFAC were also discussed.

关 键 词：聚硅酸氯化铝铁 含砷废水 混凝处理 

分 类 号：X703.5[环境科学与工程—环境工程] X703