Vinhoto da cana de açúcar: aproveitamento e impactos ambientais na região de Ibaiti/PR

Abstract

This study aimed to educate producers of high sugar and alcohol danger of contamination of the environment stillage and show them the benefits of improved treatment of this waste. Procedures for the development of this study were divided into four steps: a) survey of alcohol production and waste from employees of the plant alcohol b) field research to observe the whole process, c) a questionnaire and d) research documentary focused on the analysis of the process and the use of vinasse. The survey was conducted in the region of Ibaiti/PR, where a plant is located alcohol, producing alcohol and high amount of residue (stillage), which is stored in tanks in forms of dams, springs and bed close to a major river for the region (Rio Laranjinha). This study showed that the application of stillage on sugarcane through fertigation, is a practice highly profitable and with great chances of success. It was found that the use of stillage as a fertilizer in the sugarcane plantations economy presents a variable depending mainly prices of mineral fertilizers, as well as the system itself. The data presented serve to point out once more that the rational application of stillage will, in most cases, to obtain a simple and economical use of stillage. No economic goal will be victorious, if this takes place at the expense of the environment.