Pembuatan Filter Berbasis Bentonit dengan Karbon Aktif dari Batang Kelapa Sawit dan Cangkang Kelapa Sawit Untuk Air Tercemar

Abstract

In this study, bentonite-based filters were made with activated carbon from palm trunks and palm shells for polluted water, using physical activation. Palm trunks and palm shells were carbonized at 300℃ for 1 hour and then physically activated with temperature variations of 400℃, 500℃, and 600℃ for 1 hour. The results obtained with the most effective filtration value of iron metal (Fe) is 0.00999 mg/L with the remaining filtration results of 0.11% in an area of 5.5 cm x 5.5 cm, while the effective filtration of lead metal (Pb) is 0.0089 mg/L with the remaining filtration results of 0.15% in an area of 5.5 cm x 5.5 cm. For the effective filtration value of iron metal (Fe) at a diameter area of 2.5 cm, 0.07222 mg/L was obtained with the remaining filtration result of 0.82%, and the effective filtration of lead metal (Pb) at a diameter area of 2.5 cm was 0.05122 mg/L with the remaining filtration result of 0.88%. The results of the morphology of the sample surface using SEM showed that the best filtration sample clearly showed pores on the surface of the sample, while the lowest filtration sample did not show any pores at magnification. For the EDX results in this study, the dominating element values are carbon (C) by 66.5%, oxygen (O) 20.5%, potassium (K) 4.7%, and silica (Si) 4.0% in the best filtration sample, while in the lowest filtration sample the carbon (C) element is 50.0%, oxygen (O) 30.5%, silica (Si) 8.0%, and potassium (K) 3.6%.