Patent ID: 7214301
Filing Date: 2007-05-08
Classification: B01D,B01J,C02F

Abstract:
1. An apparatus for Modified Electro-Dialysis (MED), comprising: a plurality of adjacently arranged Modified Electro-Dialysis (MED) filter-elements, with alternating diluting elements and concentrating elements separated by anionic and cationic membranes; each of the diluting elements including an inlet for liquid containing impurities to be cleaned, and an outlet for cleaned liquid, liquid flow within the diluting elements taking place from the inlet to the outlet; each of the concentrating elements including an inlet for clean liquid and an outlet for liquid containing impurities, liquid flow within the concentrating elements taking place from the inlet to the outlet; and means for producing an electric field for conducting anions and cations in opposite directions out of the diluting elements into the concentrating elements, wherein at least one of the diluting elements is a Modified Electro-Dialysis filter element comprising a sintered porous ceramic material body having a substantially uniform structure with functional groups grafted onto inner, porous surfaces of the ceramic body.