Electrochemical methods are known to have attractive features and capabilities when used for ion separations and water purification. In this study, we developed a new process called shock ion extraction (shock IX) for selective and chemical-free removal of toxic heavy metals from water. Shock IX is a hybrid process that combines shock electrodialysis (shock ED) and ion exchange using an ion exchange resin wafer (IERW), and this method can be thought of functionally as an electrochemically assisted variation of traditional ion exchange. In particular, shock IX exhibits greater ion removal and selectivity for longer periods of time, compared to the use of ion exchange alone. The use of an IERW in shock ED also increases multivalent ion selectivity, reduces energy consumption, and improves the hydrodynamics and scalability of the system.

中文翻译：

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使用冲击离子萃取从水中选择性和无化学去除有毒重金属阳离子

已知电化学方法在用于离子分离和水净化时具有吸引人的特征和能力。在这项研究中，我们开发了一种称为冲击离子提取 (shock IX) 的新工艺，用于选择性和无化学物质地去除水中的有毒重金属。Shock IX 是一种混合工艺，它结合了冲击电渗析 (shock ED) 和使用离子交换树脂晶片 (IERW) 的离子交换，这种方法在功能上可以被认为是传统离子交换的电化学辅助变化。特别是，与单独使用离子交换相比，Shock IX 在更长的时间内表现出更大的离子去除和选择性。在休克 ED 中使用 IERW 还增加了多价离子的选择性，降低了能耗，并提高了系统的流体动力学和可扩展性。