Filtration Application with PVDF Membrane in the Removal of Natural Organic Matter Humic Acid from Surface Water
Filtration with PVDF Membrane in the Removal of Humic Acid
DOI:
https://doi.org/10.1071/ejmbs.v1i2.15Keywords:
Filtration, Humic acid, Membrane, Polyvinylidene fluoride, Surface waterAbstract
Only 0.03% of water resources are used as drinking water in the world. The most important problem in drinking water is organic substances in surface waters. More than half of these organic substances are humic acid. Humic acid which is formed partially or completely by the decay of vegetation or animal waste, is a dark-colored substance. These substances enter surface waters with rainwater. In the chlorination process, which is a disinfection process applied to surface waters, chlorine reacts with humic acid and creates carcinogenic by-products such as trihalomethane and haloacetic acid. Trihalomethane and haloacetic acid are carcinogenic materials which are harmful to human health. Therefore, the removal of the humic acid from surface waters has critical importance. To develop alternative, economical and environmentally friendly processes against the classical methods has been inevitable for the removal of humic acid from surface waters. Membrane technology is an important alternative to traditional methods. It is possible to remove humic acid from surface waters by using membrane filtration technique. In this study, porous membranes were synthesized using polyvinylidene fluoride (PVDF) polymer by the phase inversion method. The removal of humic acid from surface water was investigated by using filtration technique with synthesized membranes. The separation performance of the membrane in different humic acid concentrations was tested and the effect of the change of the concentration on the removal of humic acid was determined.
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