公开(公告)号：US20220250947A1

公开(公告)日：2022-08-11

申请号：US17608421

申请日：2020-03-27

申请人： Agua DB Ltd

发明人： Michael John Waite

IPC分类号： C02F1/42 ,  B01J41/05 ,  B01J41/12 ,  B01J39/08 ,  B01J47/028 ,  B01J49/57 ,  B01J49/53 ,  B01J49/60 ,  B01J49/08 ,  C05D1/02 ,  C05C5/02 ,  C05G1/00 ,  C05D3/00 ,  C02F1/66 ,  C02F1/44

摘要： A water treatment method to generate potable water and a fertilization or fertigation product is provided. The method comprises the steps of: passing a raw water stream through an anion exchange resin (14a, 14b) to generate a potable water output; regenerating the anion exchange resin (14a, 14b) using a weak potassium chloride solution to generate a product output comprising potassium sulphate, potassium bicarbonate, and preferably also potassium nitrate, suitable for use as or as a precursor to a liquid fertilization or fertigation product.