Biomass Briquette as a Renewable Energy Alternative

Biomass waste can be found in many areas, this research used briquettes from tofu dregs and from spent coffee grounds. Spent coffee grounds are produced after someone drinks their coffee, and until now become waste. Several types of waste are produced in tofu production, one of which is tofu dregs. This research aims to determine whether the spent coffee grounds briquette and the tofu dreg briquette comply with the national energy source standard. The measurement parameters are density, water content, ash content, volatile matter, fixed carbon, and calorific value of spent coffee ground briquettes and tofu dreg briquettes. Briquette making is done by combining the biomass with additive material with several combinations. The results showed that spent coffee briquettes comply with the standard in parameter density, water content, ash content, and fixed carbon, while tofu dreg briquettes just comply with water content parameters.