Pollution that come from hotel liquid waste could reduce water quality on surrounding area. One of the ways to prevent water pollution that come from hotel liquid waste are treating liquid waste using membrane technology. In this study, silica membranes were made with 1;2;3 % (w/w) composition variation of Polyethylene Glycol (PEG). From SEM analysis, membrane with 1 % (w/w) PEG composition has…