公开(公告)号：US20130264285A1

公开(公告)日：2013-10-10

申请号：US13816860

申请日：2010-08-13

申请人： Peter Douglas Macintosh ,  Luke Andrew Reeves ,  Mark Alistair Peacock ,  Neil Wende ,  Paul Robert Kucera ,  Colin George Weyrauch

发明人： Peter Douglas Macintosh ,  Luke Andrew Reeves ,  Mark Alistair Peacock ,  Neil Wende ,  Paul Robert Kucera ,  Colin George Weyrauch

IPC分类号： C02F9/00

CPC分类号： C02F9/00 ,  C02F1/441 ,  C02F1/442 ,  C02F1/444 ,  C02F2101/105 ,  C02F2101/14 ,  C02F2101/20 ,  C02F2101/303

摘要： Process and facility for treating an aqueous solution containing substantial concentrations of a variety of contaminants, including solids, semi-solids, colloids, complexes, oligomers, polyvalents, organics and monovalents, and which tend to form gels and scale precipitates when their concentration levels are increased during treatment of the aqueous solution, the process comprising the steps of: a) feeding the aqueous solution to an ultrafiltration (UF) plant and recovering therefrom an UF permeate reduced in such suspended solids, semi-solids and colloids; b) feeding the UF permeate obtained from step (a) to a nanofiltration (NF) plant and recovering therefrom an NF permeate reduced in such complexes, oligomers, polyvalents and organics; and feeding the NF permeate obtained from step (b) to a first reverse osmosis (RO) plant and recovering therefrom an RO permeate reduced in such monovalents. The process and facility may be used for treating process water from wet process phosphate acid production.

摘要翻译： 用于处理含有大量浓度各种污染物（包括固体，半固体，胶体，复合物，低聚物，多价物，有机物和单价）的水溶液的方法和设备，并且当浓度水平为 所述方法包括以下步骤：a）将所述水溶液进料至超滤（UF）装置并从其中回收在这种悬浮固体，半固体和胶体中还原的UF渗透物; b）将从步骤（a）获得的UF渗透物供给纳滤（NF）植物，并从其中回收在这种复合物，低聚物，多价戊烯和有机物中还原的NF渗透物​​; 以及将从步骤（b）获得的NF渗透物​​供给到第一反渗透（RO）植物中并从其中回收减少这种单价的RO渗透物。 该方法和设备可用于处理来自湿法磷酸生产的工艺水。