POTENSI ARANG AKTIF MENGGUNAKAN AKTIVATOR Na2CO3 DARI KULIT SALAK PADANG SIDEMPUAN (Salacca sumatrana) SEBAGAI ADSORBEN ION TIMBAL (II) DAN KADMIUM (II)

Abstract

The aim of this research was to determine the potential waste of snakefruit shell as adsorbent which carbonized at 600oC for ±2 hours using Na2CO3 5.0% as the activated agent. The adsorbent was characterized by moisture content (12.64%), ash content (11.55%), iod adsorption (785.64 mg/g) and methylen blue (17.48 mg/g). The ability of best activated charcoal was applied to adsorp lead (II) and cadmium (II) ions which analyzed using Atomic Adsorption of Spectrofotometer (AAS). The result showed that the activated snakefruit shell charcoal has efficiency adsorption of 99.72% (69.41 ppm) for lead (II) ions and 86.79% (77.96 ppm) for cadmium (II) ions