利用选择性复合树脂处理含砷废水，使出水水质达到国家《地表水环境质量标准》（GB 38382002），同时从选择性复合树脂和阳离子柱上交换下来的离子可以生成H2O和中性盐类，无二次污染。研究采用201×7苯乙烯系强碱凝胶型树脂（Ⅰ）和D301大孔弱碱阴离子交换树脂（Ⅱ）作为比选树脂，通过小试试验选择具有较高交换容量的201×7苯乙烯系强碱凝胶型树脂用于放大规模的现场中试。实验所用选择性复合树脂制作成本及整个中试系统价格低廉，适合大规模工厂应用。%The selective composite resins were used to treat spring water containing arsenic, and the arsenic concentration in the ef-fluent reached the Environmental Quality Standards for Surface Water ( GB 3838 2002) . Ions exchanged from the selective com-posite resin and cation exchange column have yielded H2O and neutral salt, and this method has no secondary pollution. 201×7 gel type styrene of strong akali resin (Ⅰ) and D301 macroporous have weakened the akali anionic exchange resin (Ⅱ) , when com-pared to choose the suitable resin for arsenic removal in this study. The 201×7 resins with higher exchange capability and lower cost were applied to the pilot scale experiments on site and they were suitable to large-scale applications.
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