Studi Perbandingan Adsorpsi Timbal (Pb2+) Pada Media Adsorben Sekam Padi, Jerami, Dan Serabut Kayu Meranti

The existence of transports and industries activity massively contributed to the gas emission values in the air, so the presence of leads have made the composition of rainwater change due to affect quantity of leads concentration. The presence of leadswere a very high risk to the human body if they were consumed continiuosly. Technology of adsorption processing (Adsorption technique) was one of solution purifying metal and this technique has been studied widely. The existence of straws and rice husks are plenty in Indonesia that made these media became excellent choice for adsorption media, then the Meranti fibre woods from waste (unused) material of the furniture industries are also others alternative for the adsorption media. The raw waste adsorbent was activated with 0.5 M H2SO4, but before it need to be passed by pirolysis treatment. In this research was worked by using Straws, Rice Husks, and Meranti Wood Fibers for leadsconcentration of 0.1 ppm ,0.05 ppm, and 0.03 ppm by times controlled on 20, 40, 60, 80, and 100 minutes. Percentage of removal for leads with rice husks reached 80.52 %, 81.85 % , and 82.40 % , while Straws reached 78.88 % , 73.22 % , and 78.66 % , and Meranti wood fibers reached 88.88 % , 82.12% and 81.66