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.
