公开(公告)号：US20070056911A1

公开(公告)日：2007-03-15

申请号：US11445757

申请日：2006-06-02

申请人： Dongye Zhao ,  Byungryul An

发明人： Dongye Zhao ,  Byungryul An

IPC分类号： C02F1/28

CPC分类号： C02F1/683 ,  B01J20/26 ,  B01J20/261 ,  B01J20/265 ,  B01J20/28019 ,  B01J20/3265 ,  C02F1/285 ,  C02F2101/103 ,  C02F2101/12 ,  C02F2101/18 ,  C02F2303/16

摘要： A method of removing toxic compounds from water comprises the steps of providing a polymeric ligand exchanger having a chelating resin containing nitrogen electron donor atoms and a transition metal ion bonded with the nitrogen donor atoms on the surface of the chelating resin, and contacting water containing a toxic compound with the polymeric ligand exchanger to remove the toxic compound from the water. The preferred metal ion is a cupric ion, and the preferred toxic compound to be removed from water is arsenic. The method further includes the step of regenerating the polymeric ligand exchanger with brine and the step of treating the brine used to regenerate the polymeric ligand exchanger with iron chloride to remove arsenate therefrom so that the brine may be re-used in the system to reduce the overall volume of waste material.

摘要翻译： 从水中除去有毒化合物的方法包括以下步骤：提供具有螯合树脂的聚合配体交换剂，其含有氮电子给体原子和与螯合树脂表面上的氮供体原子结合的过渡金属离子，并使含有 与聚合物配体交换剂的有毒化合物从水中除去有毒化合物。 优选的金属离子是铜离子，从水中除去的优选的有毒化合物是砷。 该方法还包括用盐水再生聚合物配体交换剂的步骤，以及用氯化铁处理用于再生聚合物配体交换剂的盐水以从其中除去砷酸盐的步骤，以便可以在系统中重新使用卤水以减少 废料总体积。