Household water purification device on nanofiltration membrane basis without storage container, comprises a pretreatment filter, pretreatment charcoal filter, a main filter section, a reflux preventing valve and an after treatment filter

摘要

The household water purification device on nanofiltration membrane basis without storage container, comprises a pretreatment filter (4), a pretreatment charcoal filter (6), a main filter section (7), a reflux preventing valve (8), an after treatment filter (9), a pressure valve (5) coupled between the pretreatment filter and the charcoal filter, and discharge valve (10) that directly discharges the purified water without storage. A nanofiltration membrane filter module with a pore size of 0.1-10 nm, is used as the main filter section. The household water purification device on nanofiltration membrane basis without storage container, comprises a pretreatment filter (4), a pretreatment charcoal filter (6), a main filter section (7), a reflux preventing valve (8), an after treatment filter (9), a pressure valve (5) coupled between the pretreatment filter and the charcoal filter, and a discharge valve (10) that directly discharges the purified water without storage. A nanofiltration membrane filter module with a pore size of 0.1-10 nm, is used as the main filter section in order to provide an inlet water volume of 0.5-3.5 liters, and is spirally wound- and hollow fiber type. The filter module has effective membrane surface of 8-50 ft2>, outer diameter of 1.5-4.5 inch and length of 8-18 inch. The filter module is manufactured by interfacial polymerization of piperazine or meta phenylenediamine with trimesoylchloride on a micro porous carrier.