Desinfecção de água utilizando aquecimento solar.

Abstract

The process of thermal solar disinfection of water consists of raising the temperature for enough period of time, using solar heating system. The solar system has been chosen due to its physical characteristics, which enable greater heating in a lesser time. The purpose of using this equipment was to have an ideal temperature capable of eliminating the biggest number of pathogens in contaminated water. The aim of this assay was to consider a treatment of the water used in the agriculture preventing from the use of chemical products in the purification. In order to determine the system efficiency, the outflows and the water temperature to the entrance and exit from the equipment were considered. The microbiological quality of treated and non-treated water from residuary water samples were evaluated. Therefore, water to a temperature above 46°C presents absence of fecal and total coliforms resulting in an efficient treatment.