The presence of water hyacinth (Eichhornia crassipes) as an aquatic plant in many lakes or other basins causes many
conservation problems. Many efforts have been devoted to overcome these problems such as by utilization of water hyacinth for
energy production, for water treatment, etc. In this research, cellulose was isolated from water hyacinth and further used for
membrane preparation. Cellulose isolation was performed by extraction followed by acetylation resulting cellulose diacetate. The
membranes were prepared by phase separation methods. The resulting membranes were then characterized by measuring water
flux and surface chemistry (by FTIR). In addition, the membranes were examined for filtering humic acid solution as a model of
surface water. The results show that cellulose can be isolated from water hyacinth and can further be processed into cellulose
diacetate with the yield of 5,6 %. The membrane preparation shows that the concentration of polymer and evaporation time
influence the performance of the membrane, where the greater concentration of the cellulose polymer and the longer of the
evaporation time results in the denser and the smaller membrane pores
The presence of water hyacinth (Eichhornia crassipes) as an aquatic plant in many lakes or other basins causes manyconservation problems. Many efforts have been devoted to overcome these problems such as by utilization of water hyacinth forenergy production, for water treatment, etc. In this research, cellulose was isolated from water hyacinth and further used formembrane preparation. Cellulose isolation was performed by extraction followed by acetylation resulting cellulose diacetate. Themembranes were prepared by phase separation methods. The resulting membranes were then characterized by measuring waterflux and surface chemistry (by FTIR). In addition, the membranes were examined for filtering humic acid solution as a model ofsurface water. The results show that cellulose can be isolated from water hyacinth and can further be processed into cellulosediacetate with the yield of 5,6 %. The membrane preparation shows that the concentration of polymer and evaporation timeinfluence the performance of the membrane, where the greater concentration of the cellulose polymer and the longer of theevaporation time results in the denser and the smaller membrane pores
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