Rafael Silva Oliveira
Instituto Luterano de Ensino Superior de Itumbiara, Brazil
Title: Treatment of Residual Water From a Dairy Plant For Potential Purpose
Biography
Biography: Rafael Silva Oliveira
Abstract
The water is a very important natural resource for life in Earth. It is fundamental for several human activities, and more for the food industries, were we have the high consumption in dairy industries, the focus of this project. This present study was developed with the objective of proving the technical and financial viability of a model for reutilization of residual water from a dairy plant, through the coagulation with aluminum sulfate and disinfection with sodium hypochlorite. Thus, a data collection on water consumption and generation of effluents in the industry was carried out, as well the treatment of residual water through Jar-Test, followed by a physical-chemical and microbiological analyzes of water after treatment. The aluminum sulfate test was efficient in the residual water treatment, with a turbidity reduction efficiency of 97,6%. Also the disinfection test with sodium hypochlorite was efficient with the dosages of 1,0, 1,5 and 2,0 ppm and 30 minutes of contact time, which resulted in absence of total coliforms and Escherichia coli, for all samples. The studies parameters had good results to the treatment, which make new perspectives for the reuse of water in dairy plant, which makes possible to reduce the processing costs with the purchase of water and consequently less environmental impact to the water resources.