DefinePK

Abstract

Clamshell, rice husks, and coconut choir can be used as raw material for making membranes because they contain silica which is acted as main material. Membranes from clamshell, rice husks, and coconut choircan be used for sea water desalination. The objectives of the study were to determine the degradation of chlorida with clamshell, rice husks, and coconut choir as membrane material and to know the optimum flux (ml/cm2.min) for the manufacture of silica membrane with 15 grams weight of membrane and 600 rpm. Membrane-making techniques using phase inversion technique and sintering. Membrane structure testing was done scanning electron microscope (SEM) energy dispersive x-ray (EDX) spectroscopy equipment. The results showed that 15 grams of membrane mass with 600 rpm velocity resulted 66,67% in optimum chloride rejection (R) with membrane material from coconut choir, since membrane material from rice husks was 61,08% and clamshell as membrane material was 53,87% optimum chloride rejection with same operation peak time 90 minute. The average flux optimum was 0, 48 ml/cm2.min with rice husks as membrane material, then 0, 36 ml/cm2.min with clamshell as membrane material and followed by 0, 22 ml/cm2.min with membrane material from coconut choir. The presence of Si also can be detected from SEM EDX spectrophotometry equipment and might be affected to rejection and flow rate of clamshell, rice husks, and coconut choir as membrane material.