Produksi dan karakterisasi membran dari selulosa asetat mikrobial

Abstract

Membrane filtration is a simple separation process with high efficiency. The most Important imitation of the membrane process application a the high cast of the membrane, because the material is nol yet manufactured in Indonesia. To benefit from the membrane frocess. experiments are needed to find out the best formula for membrane preparation In these experiments, a natural polymer (microbial cellulose acetate) was used as raw material in the membrane preparation The objective of this experiment was to produce and characterize membrane filtration from microbial cellulose at various operating conditions (solvent concentration, and ratio of polymer to solvent) Results have shown that a water flux of 35 ±2 l/m2 h could be achieved with the membrane produced from 100% dichioromethane with a polymer-solvent ratio of 0 10 The water flux decreased with increasing the polymer-solvent ratio Rejection level of the produced membrane far glucose, albumin, and starch were 10 ± 2; 32 ± 7: and 25 ± 1 percent, respectively The achieved flux and the observed rejection levels are still low compared to commercial membranes, and therefore need for improvement