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Nasrul Arahman

Abstract

Capability  of cellulose acetate membrane was tested in  water treatment process as low-pressure membrane with 0.01 – 10 mm pore size could  remove  suspended solids, oil, bacteria, and other impurities from raw  water. The results showed that the operational pressure, pH, SS concentration, and operational period  influenced microfiltration process. Maximum rejection  efficiency of Escherichia coli bacteria  was  99.996% at 1.00 Kg/Cm2 operation pressure, 99.999% at pH 6,and 99.998% at SS concentration of 100 mg/L. Maximum fluxes were 82.032 L/m2hour at 1.25 Kg/Cm2 operational pressure, 68.074 L/m2hour at pH 2, and 65.250 L/m2hour at SS concentration of 20 mg/L SS.

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