The major ingredients present in synthetically manufactured fertilizers include various types of compounds containing potassium (K), nitrogen (N), and potassium (K). These fertilizers are used to supply nutrients for  half the world’s food consumption. Examples of the many synthetic fertilizers include KCl (potassium chloride) and DAP (di-ammonium phosphate). While most fertilizer manufacturing processes produce solid “round” granules in the 1 to 6 mm range or the 2 to 4 mm range, the initial feedstock to the process is in liquid form, known as the “Melt.” A commonly used Drum Granulation process is shown in Figure 1. The Melt enters through the front end of the drum granulator which rotates, and with the help of lifters present along the inside of the drum, it gently throws the granules as they grow in size. The exit stream contains granules that range from 0.1 to 10 mm in size. The stream is screened for granules at 4 mm, with +4 mm granules going to a large silo from which they pass through a roll crusher and then back into the drum granulator. The -4 mm stream is screened for granules at 2 mm, with the -2 mm stream going to an undersize silo and then back to the drum granula...