Preparation cheracterization and applications of clay supported composite membranes

Abstract

Low cost ceramic membranes were prepared by paste casting followed by sintering at various temperatures using natural clay 150 mesh of IIT Guwahati as the main raw material The mechanical strength of the membrane was successfully increased by addition of small amount of sodium carbonate sodium metasilicate and boric acid The pore size of the prepared membrane was found to be 4 58 Dm for the membrane sintered at 1000 DC For decreasing the pore size of the membrane kaolin was mixed with