Análise de componentes principais para a caracterização da água de chuva armazenada em sistema no Instituto de Aplicação Fernando Rodrigues da Silveira - CAp-UERJ.

Abstract

Water scarcity that affected mainly the southeast region in the years 2014 and 2015 exposed the dependence of the society to clean water and demystified it was an infinity resource. Among numerous alternatives for consumption streamlining the use of rainwater was one of the most sought after. Currently the harvest of rainwater is widely applied in several countries such as Australia, Israel and the United States. However, caution is required in assembling the collection system to prevent contamination of the reserved water. This work aims to evaluate the physical and chemical quality and biological rainwater in a catchment and rainwater storage system installed on the Application Institute Fernando Rodrigues da Silveira, the Rio Comprido neighborhood, downtown of the city of Rio de Janeiro. The parameters analyzed for twelve months between the years 2014 and 2015 consist of: temperature, pH, conductivity, turbidity, dissolved oxygen, total dissolved solids, alkalinity, color, sulfate, hardness, ammonia nitrogen, total organic carbon, total coliforms and Escherichia coli. Parameters pH, turbidity, color and total coliforms were non conformities recorded with Law nº. 2,856 / 2011 in Niterói. In general, the turbidity and the pH values were critical and have been recommended filtration, the pH equalization and disinfection of the storage water. Regarding seasonality statistically significant differences weren t observed, however it is recommended for better correlation historical analysis superior to this monitoring.