Preparation of Coffee Waste-to-Briquette for Producing a Potential Alternative Solid Fuel

In recent years circular economy of waste use have been proposed from various purposes by the government and private sectors. Huge amount of spent coffee ground is generated around the world. However, the practical use of spent coffee ground is needed to perform by addressing the model in circular economy. We have proposed the preliminary study to prepare briquette from spent coffee ground by using different organic materials as binders. Three types of binder comprised cassava starch, corn starch and glutinous rice flour. In this work, the briquettes were proposed to use three different ratios of binder to spent coffee ground by 1:10, 2:10 and 3:10. The ignition efficiency of each briquette was conducted by home experiment.