Lombok Pumice for Adsorption of Fe2+ Metal Ions Using Activation Temperature Variations

Fe is a heavy metal that often found in water. If the level exceeds maximum limit and continuously consumed, it will cause various kinds of diseases so method needed can reduce Fe2+. In this study, Fe2+ ion adsorption was carried out using pumice which aims to determine characteristics include surface area, density porosity, ability, contact time required absorb ions. The used batch method, with activation treatment for each adsorbent. Activation done by heating at temperature variation 250o, 400o, 550oC. results showed highest capacity activated powder 550oC characteristic area ​​8.196 m2/g, porosity 12.722% 2.374 gr/cm3 best 60 minutes absorption efficiency 86.4%