饮水复合材料除砷滤芯的研制与效果评价

Development and evaluation of a composite structural filter for removal of arsenic in drinking water

目的 研制饮水复合材料除砷滤芯并在高砷饮水地区进行模拟现场效果评价。方法 以载铁活性炭粉与超细聚乙烯树脂为主要成分制备复合材料除砷滤芯 ,现场使用加标高砷饮水为原水 ,测定了滤芯的安全性、除砷效果以及其它净水作用。结果 以等量载铁活性炭粉和超细聚乙烯树脂制备的复合材料除砷滤芯可安全用于饮用水处理对砷含量为 0 4mg L的实验原水 ,除砷容量可达 2 5 6mg g ,同时对水质浊度和耗氧量指标有明显改善。

Objective\ To develop a composite structural filter and evaluate its performance on site for removal of high level arsenic in drinking water. Methods Composite filters were manufactured using iron loaded carbon powder and superfine PE resin as main components. Test water was prepared by spiking arsenic in raw drinking water. The filter application safety and removal effects on arsenic and other parameters were tested. Results The composite structural filter made of iron loaded carbon powder and superfine PE resin in equal quantity was safe for drinking water treatment and reached a capacity of 2.56mgAs/g for water with arsenic concentration of 0.4mg/L, and improved water turbidity and chemical oxygen demand apparently. Conclusion The composite filter manufactured using iron loaded carbon powder and superfine PE resin as main components was appropriate for removal of arsenic in rural drinking water with high level of arsenic.