Potensi Limbah Tempurung Kelapa, Tongkol Jagung, dan Daun Trembesi di Olah Menjadi Briket Bioarang

Abstract

Indonesia is increasing new renewable energy sources, one of the new renewable energy sources is biomass energy. Indonesia has the potential for biomass energy, due to the large amount of agricultural land. The vast agricultural land produces a lot of agricultural waste, especially for coconut shell waste, corn cobs, and leaves such as trembesi leaves. The purpose of this study was to determine the potential of coconut shell, corn cob, and trembesi leaves before being processed into a biocharcoal briquette, and to calculate the economic value of biocharcoal briquettes. This research is an experimental research. The method was carried out before carbonizing the material, pulverizing, and filtering 60 mesh, then conducting laboratory tests of characteristics (moisture content, ash content, volatile substance content, calorific value, and bound carbon content). The results of this study are the highest moisture content in tapioca flour at 12.2%, while the lowest in trembesi leaves at 6.1%. The highest ash content in corn cob was 6.6%, while the lowest in tapioca flour was 2%. The highest volatile substance content in tapioca starch was 0.995%, while the lowest in coconut shell was 0.878%. The highest calorific value in trembesi leaves was 4600.67 cal/g, while the lowest in tapioca starch was 3460.05 cal/g. The highest bound carbon content in trembesi leaves was 88.866%, while the lowest in tapioca flour is 84.805%. As well as the economic value obtained Rp. 16 460, -, overall the results of the characteristics are very good if processed into a biocharcoal briquette and are able to compete with market prices.

 Keywords: Potential waste, Coconut Shell, Corn Cob, Trembesi Leaf