Production and Characterization of Biochar from Rice Husk
Keywords:
Electron, Production, Characterization, Biochar, Rice HuskAbstract
Biochar was produced from Rice husk which is an agricultural waste obtained from rice milling process. The rice husk was pyrolized at a temperature of 500 oC inside a drum pyrolyser for a period of 1 hr 30 min. A particle size of 450 of the biochar was obtained using sieve analysis and the biochar was characterized. From the results obtained, the surface area of the biochar was 310.3m2/g. The bulk density, pore volume and pore size were found to be 0.143g/cm3, 0.143cm3/g and 3.681 nm respectively. The yield was 49% and the pH is 8.4. The adsorptive capacity of the biochar was 0.894 mg/s. From the results, it is concluded that the biochar has good adsorption properties and can be used for, soil amendment/conditioning, wastewater treatment, gas separation and purification, water purification and vegetable oil refining processes. The biochar can also be considered for application in the production of chemical biochar based fertilizer. The production of biochar using rice husk is also a good solid waste management technique which helps in preventing environmental pollution.