公开(公告)号：US06929748B2

公开(公告)日：2005-08-16

申请号：US10402014

申请日：2003-03-28

申请人： Dey Avijit ,  Thomas Gareth Hugh

发明人： Dey Avijit ,  Thomas Gareth Hugh

IPC分类号： B01D61/02 ,  B01D61/04 ,  B01D61/48 ,  B01D61/58 ,  C02F1/20 ,  C02F1/28 ,  C02F1/32 ,  C02F1/42 ,  C02F1/44 ,  C02F1/469 ,  C02F1/52 ,  C02F1/68 ,  C02F5/00 ,  C02F5/10 ,  B01D61/00 ,  B01D59/44

CPC分类号： B01D61/025 ,  B01D61/022 ,  B01D61/04 ,  B01D61/48 ,  B01D61/58 ,  B01D2311/04 ,  C02F1/20 ,  C02F1/283 ,  C02F1/32 ,  C02F1/441 ,  C02F1/4695 ,  C02F1/52 ,  C02F1/683 ,  C02F5/00 ,  C02F5/10 ,  C02F2001/425 ,  C02F2101/12 ,  C02F2101/36 ,  C02F2103/04 ,  C02F2209/06 ,  Y10S210/90 ,  Y10S210/908 ,  B01D2311/2603 ,  B01D2311/268 ,  B01D2311/2623

摘要： A method of water purification including the steps of passing source water through at least one reverse osmosis unit to produce a product water and reject water, directing the product water from a reverse osmosis unit into the dilution stream of a continuous electrodeionization unit, directing the reject water from the first pass reverse osmosis unit through a softening unit to produce softening unit output water with fewer hardness elements than the reject water from the first pass reverse osmosis unit, directing the softening unit output water into a concentrate stream of the continuous electrodeionization unit, and wherein the continuous electrodeionization unit further purifies the water from the dilution stream to produce purified water.

摘要翻译： 一种水净化方法，包括以下步骤：使源水通过至少一个反渗透单元以产生产物水并排出水，将产物水从反渗透单元引导到连续电去离子单元的稀释流中，引导废弃物 来自第一通反渗透单元的水通过软化单元产生软化单元输出水，其具有比来自第一道反渗透单元的废水更少的硬度元素，将软化单元输出水引导到连续电去离子单元的浓缩物流中， 并且其中所述连续电去离子单元进一步净化所述稀释流中的水以产生净化水。