초록 ▼

Low conductivity cooling water for a fuel cell body is obtained by a water treatment apparatus which removes dissolved carbon dioxide gas in the exhaust gas condensate by a decarbonation column. Iron oxide is eliminated from the condensate as well as blowdown water by a MF membrane separator device.

Low conductivity cooling water for a fuel cell body is obtained by a water treatment apparatus which removes dissolved carbon dioxide gas in the exhaust gas condensate by a decarbonation column. Iron oxide is eliminated from the condensate as well as blowdown water by a MF membrane separator device. Iron ions are removed by a chelate resin column. Deionization occurs with an electrodeionizer which has an internal ion exchange resin.

대표청구항 ▼

[ What is claimed is:] [1.] A water treatment apparatus for a fuel cell system, comprising:said fuel cell system which generates contaminated blowdown water and exhaust gas condensate;a decontamination apparatus;said decontamination apparatus includes a decarbonation means, a membrane filtration dev

[ What is claimed is:] [1.] A water treatment apparatus for a fuel cell system, comprising:said fuel cell system which generates contaminated blowdown water and exhaust gas condensate;a decontamination apparatus;said decontamination apparatus includes a decarbonation means, a membrane filtration device, a chelate resin column and an electrodeionizer in series in the recited order;said decarbonation means being effective in removing dissolved carbon dioxide gas from water;said membrane filtration device being effective in removing iron oxide from outflow water of said decarbonation means;said chelate resin column being effective to form chelate compound ligands with iron ions for selectively sorbing said iron ions in outflow water from said membrane filtration device;said electrodeionizer being effective in removing trace ions in outflow water from said chelate resin column;a cooling water supply pipe of a steam separator of said fuel cell electric power source; anda means for conveying decontaminated water from said electrodeionizer to said cooling water supply pipe.