Effect of Cassava Starch and Tree Gum Binders on the Physical Properties of Onion Leaves Briquettes

Onion leaves can be seen lying as a waste which also littered houses, markets, walk ways, and gardens of the study area. Briquetting of onion leaves is relatively new. The effect of a binder on the physical properties of onion leaves briquettes using two different binders of Cassava Starch and Tree Gum was studied. Three of each sample was produced with a different binder to briquettes ratio of 90:10, 85:15, and 80:20 using a manual press briquetting machine. The result of a water resistance measurement shows that all the sample of briquettes produced can resist water for more than 3 minutes, the result of compressed density, dimensional stability, relaxation ratio shows that samples binded with tree gum has the highest value compare to the samples binded with cassava starch. Based on the results obtained, it can be concluded that the briquette from onion leaves with cassava starch as binders can be used as a substitute for biogas