THE UTILIZATION OF DURIAN PEELS AND SPENT COFFEE GROUNDS TO PRODUCE BRIQUETTE CHARCOAL
Keywords:Durian Peels, Spent Coffee Grounds, Briquette Charcoal, Fat Dregs
A large amount of waste material comes from durian peels and spent coffee grounds. In the absence of recycling, it will have an effect on the environment. Both spent coffee grounds and durian peels have the potential to be used as fuel in the production of briquette charcoal. In this study, tapioca starch and fat dregs were used as binders to examine the production of briquette charcoal from durian peels and spent coffee grounds in the following ratios: 10:0, 8:2, 6:4, 4:6, 2:8, and 0:10. The results indicated that briquette charcoal utilizing fat dregs as a binder in all experiments had smooth surfaces and no cracking whereas briquette charcoal using tapioca starch as a binder in the ratios of 10:0 and 8:2 showed smooth surfaces and less cracks than other experiments. The analysis of the briquette charcoal moisture content revealed that it was less than 8%, which was in compliance with the community product standard for briquette charcoal when both tapioca starch and fat dregs were used as binders. According to the results of the ash content analysis, the ratio of 10:0 (durian peels) had the highest ash content, while the ratio of 0:10 (spent coffee grounds) had the lowest. As the amount of spent coffee grounds increases, the ash content tends to decrease. The ratio of 0:10 (spent coffee grounds) with tapioca starch and fat dregs as a binder produced the highest heating value of 6,126.67±30.62 and 6,910.00±51.42 cal/g, respectively, whereas fat dregs as a binder had a better heating value than tapioca starch.
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