EFFECT OF CHITOSAN CONCENTRATION ON MACROPOROUS CHITOSAN-TPP BEADS TOWARD TURBIDITY, DYE CONTENT, AND COD OF SASIRANGAN WASTEWATER

Abstract

This research was carried out to determine the effect of chitosan concentration in the synthesis of cross-linked tripolyphosphate (TPP) macropore beads on turbidity, color content, and Chemical of Demand (COD) of Sasirangan wastewater. Macroporous chitosan-TPP beads were synthesized from chitosan solution with various concentrations of 2%, 3%, 4%, and 5% and added NaHCO3 as a porogen, then dripped into 0.75% tripolyphosphate solution. It was further interacted with Sasirangan wastewater by adsorption method with its effect analyzed by using the turbidity value, color content, and COD. The results showed that beads with a 3% chitosan concentration were the most effective in reducing the turbidity value, color content, and COD value. Furthermore, the use of a chitosan concentration of more than 3% indicates reduced effectiveness. Macroporous Chitosan-TPP beads were able to produce a decrease in turbidity, color content and COD by 81.21%, 55.44%, and 59.37%