Synthesis Activated Carbon from Rice Husk to Treat Acidic Wastewater from the Rubber Sheets Production

Abstract

This research studies the synthesis of activated carbon from rice husk by microwave energy activation. The first step, carbonization of rice husk at 350 450 550 650 and 750°C respectively. Each carbonization spent 60 minutes. The amount of moisture, volatile, ash and fixed carbon were analyzed by following American Society for Testing and Materials (ASTM). The amount of fixed carbon was 32.59 40.15 34.98 41.78 and 39.59% respectively. Charcoal at 650°C was immersed in saturated ZnCl₂ solution, radio of charcoal 1 g. per solution 3.11 g. in 24 hrs. After that it was activated by microwave radiation at 800 (W) in 0 5 10 15 20 and 30 minutes. According to characteristic of surface area and total pore volume by BET technique, it was found that at 800 watt in 0 5 10 15 20 and 30 minutes, surface area were 222.75 242.96 307.70 343.74 339.56 and 306.06 (m² g^-1) respectively. Factor that affecting to treat acidic wastewater of activated carbon was investigated. It was found that the appropriated amount of activated carbon to adsorb rubble particles was 0.1 (g ml^-1)