WATER-TREATMENT USING INORGANIC MEMBRANE

Sol-gel process was used for preparation of gamma-alumina complex memb ranes. Alumina sols were synthesized by interfacial technique with alu minum iso-propoxide, water and acids as peptization agents. Different types of acids were chosen to produce sols of different mean particle size. Under the same condition the effect of these acids in producing particles in increasing size order was HCl, HNO3, formic acid and acet ic acid. The particle size decreased as H+/Al2O3 mole ratio adsorption -desorption and water treatment test on laboratory plot tester. The ba cteria rejection was found over 99%.