Fertilizer Pellet Production from Filter Cake and Water as a Binder Employing a Flat-die Pelletizer

บทคัดย่อ

This research aimed to study effect of water mixing on fertilizer pellet production from filter cake using flat-die pelletizer. To achieve good physical quality and improve transportability of fertilizer, different amount of water were added during pellet making process, including 10%, 20% and 30% of total weight by mass. Two types of die, i.e., two and six millimeters diameter, have been tested. After pellet production, the product distribution was calculated. After the products were naturally dried, they were subjected to hardness test by universal testing machine (UTM) at the different lengths (18 to 30 mm). Results showed that additional water of 20% was a proper ratio to give high yield (30% of perfect piece), high strength (20 kg force) and density (1200-1400 kg/m³).