Removing of Fe and Mn in groundwater by adsorption process

Clean water and healthy drinking water are sources of need for humans in daily activities. One of the sources of drinking water is groundwater. Nowadays, a lot of groundwater is polluted. The method used to reduce Fe and Mn content in groundwater is the Adsorption process using kepok banana peel. The process of making kepok banana peel adsorbents by drying in the sun, carbonized at a temperature of 300oC to become charcoal then sieved with a size of 100 mesh and then activated using 20% H2SO4 for 24 hours. The adsorption process was carried out on a batch scale using a jartest, variations in stirring speed of 100 and 150 rpm, variations in contact time of 15, 30, 45, 60, 75, 90 minutes. The optimum stirring speed of 150 rpm with an optimum contact time of 60 minutes was able to remove Fe metal with an effluent concentration of 0.2726 mg/L of 83.9% and Mn metal obtained an optimum time of 30 minutes with an effluent concentration of 0.368 mg/L with a removal of 81.27 %.