中文摘要：

采用锰砂／石英砂滤池与纳滤膜组合工艺处理含砷水，考察锰砂／石英砂、纳滤膜（NF90、HL）、锰砂／石英砂滤池与纳滤膜组合工艺对水中砷的去除效果。结果表明，三价砷（AS（Ⅲ））和五价砷（AS（Ⅴ））经锰砂／石英砂过滤后能得到很好的去除，原水砷浓度250μg／L，出水砷浓度小于50μg／L；纳滤膜对五价砷（As（Ⅴ））的去除能力很高，能达到90％以上，但是对三价砷（As（Ⅲ））的去除率不理想，为40％～60％；锰砂／石英砂复合滤池与纳滤膜组合工艺对水中砷有很好的去除效果，出水砷浓度均小于10μg／L，是理想的饮用水除砷方法。

英文摘要：

In this paper by employing the combined process of manganese sand/quartz sand filter and nanofiltration membrane to remove the arsenic in water, and the arsenic removal effects of manganese sand/quartz sand, nanofiltration membrane （NF90, HL）, and combined process of manganese sand/quartz sand and nanofiltration were studied. The result showed that As（ Ⅲ ）and As（ Ⅴ ）could be removed effectively by manganese sand/quartz sand filtration, and the effluent ar- senic concentration could be less than 50μg/L when the influent arsenic concentration was 250μg/ L; nanofiltration membrane could remove As（ Ⅴ ） more than 90%, but only remove As（Ⅲ ）about 40-60%; combined process of manganese sand/quartz sand and nanofiltration had strong re moval effect of arsenic in water, and the arsenic concentration in effluent was less than 10 μg/L, which demonstrated that the combined process was an ideal process to remove arsenic in water.