POTENSI BIOSORBEN KULIT SINGKONG (Manihot esculenta Crantz) TERAKTIVASI NaOH DALAM MENINGKATKAN pH DAN KUALITAS FISIK AIR GAMBUT

Abstract

This research aims to analyze the effect of the cassava peel biosorbent powder activation process on the characteristics of the biosorbent powder, as well as determine the optimum contact time and optimum dose of biosorbent powder in increasing the pH and physical quality (color, odor, TSS and TDS) of peat water. The cassava peel biosorbent powder in this study was made through the process of drying the washed cassava peel, then grinding it to a size that passed at 100 mesh and was retained at 200 mesh. Biosorbent powder was activated using 0.4 N NaOH solution with a ratio of 1:10 (w/v). The functional groups of cassava peel biosorbent powder were analyzed using FTIR, while the surface morphology and elemental composition of cassava peel biosorbent powder were analyzed using SEM-EDS. Determination of the optimum contact time was carried out with variations in contact time of 30, 60 and 90 minutes. After obtaining the optimum contact time, then proceed with determining the optimum dose of biosorbent powder with a dose variation of 0.05; 0.10; and 0.15 g. Based on research, the optimum conditions for biosorbent powder after activation are a contact time of 60 minutes and a dose of 0.10 g of biosorbent powder. These optimum conditions have not been able to improve the color and odor of peat water, but have succeeded in improving pH, TSS and TDS when compared to Government Regulation No. 22 of 2021 concerning Implementation of Environmental Protection and Management.