新的砷最高污染水平 （10微克/升）将于本月生效，水供应商 会对这项新奇的新技术感兴趣 除砷。聚电解质强化超滤 （PEUF）工艺用于处理低浓度的水 砷的浓度。研究人员的目标 WARE:验证批处理中看到的性能 这项研究代表了飞行员规模的螺旋伤口 膜结果；以及评估总体经济状况 PEUF系统的可行性。 受砷污染的水的pH值通常会升高。 通过PEUF技术，砷聚合物结合 在更高的pH值下实际上有所改善 技术是相对于竞争技术的优势 在较低的pH值下表现更好。虽然 砷-聚合物结合随温度升高而降低 硫酸盐浓度，这可以通过 提高阳离子聚电解质与聚合物的比例 砷 除砷的其他膜工艺 需要比PEUF更高的工作压力，因此 它们产生了更高的资本、运营和维护 成本。PEUF使用了这种新型聚合物- 砷络合 以降低压力要求。这个新的 替代疗法也显示了公用事业如何 现有技术更具成本效益。 使用设计参数和水质条件 如本文所述，PEUF工艺是 证明在技术和经济上对 从饮用水中去除砷。包括40个参考文献、表格和图表。

With the new arsenic maximum contaminant level (10 µg/L) set to take effect this month, water suppliers will be interested in this novel, new technology for arsenic removal. A polyelectrolyte-enhanced ultrafiltration (PEUF) process was used to treat water with low concentrations of arsenic. The researchers' objectives were: to verify that the performance seen in batch studies was representative of pilot-scale spiral-wound membrane results; and, to evaluate the general economic viability of the PEUF system. Arsenic-tainted waters often have elevated pH values. With the PEUF technology, arsenic-polymer binding actually improved at higher pH values, giving this technology an advantage over competing technologies that perform better at lower pH values. Although the arsenic-polymer binding decreased with increasing sulfate concentration, this could be mitigated by increasing the ratio of cationic polyelectrolyte to arsenic. Other membrane processes for arsenic removal require higher operating pressures than PEUF, and thus they generate higher capital and operations and maintenance costs. PEUF uses the novel polymer-arsenic complexation to reduce the pressure requirement. This new alternative treatment also shows how utilities can make existing technologies more cost-effective. Using design parameters and water quality conditions as described in this article, the PEUF process was shown to be technically and economically viable for the removal of arsenic from drinking water. Includes 40 references, tables, figures.