Desenvolvimento e otimização de processo de granulação de resíduo da estação de tratamento de efluentes da indústria de fertilizantes para obtenção de produto com valor agregado

Abstract

The article in question addressed the question of the process of granulating waste from the fertilizer industry to obtain a new product. During the process were evaluated the variables such as acidity, humidity, granulation time, hardness of the final product and granulation efficiency. The granulation process allows the fertilizer to be applied from a faster and homogeneous soil to the soil, facilitating the action in any necessary region. This process improves the physical properties of fertilizers, reduces cobblestone and agglomeration problems, and reduces the amount of dust. From an experimental study that studied the variables of the experiments made with residues 1 and 2, which simulated the mixing zones in the granulator, it was clear the influence of the same on the particle size distribution and characteristics of the granules formed, as physical resistance and mechanism of growth. The granules generated from the experiments showed results in relation to strength, solubility, granulation efficiency, granulation time and stiffness.