Avaliação da qualidade da água de distribuição em alguns municípios do estado do Ceará

Abstract

Starting from the paradigm that the waters found in its raw state are not physically and chemically suitable for human consumption, having to go through the chemical disinfection process, the quality evaluation of the water treated in a water treatment plant (ETA) is of fundamental relevance for the whole of society. The characteristics presented by these waters influence the quality of life and significantly the health of the population. Water Treatment Stations aim to transform raw water, which is inappropiate for human consumption, into drinking water. In this process, the water quality of the supplier source directly determines the type of treatment to be employed by ETA, so that, at the end of the process, it complies with the potability standards necessary for human consumption, under the aegis of legislation in force in Brazil (Annex XX of Consolidation Ordinance No. 5/2017 of the Ministry of Health). The present work aimed to analyze the physicochemical parameters of pH, turbidity and residual chlorine of a WTP, the disinfection efficiency, and, based on the obtained results, to make comparisons with the maximum values allowed by the Brazilian legislation for the potability of the disinfection. Water. The analyzes were based on the Standard Methods for the Examination of Water and Wasterwater (APHA, 2012), and were performed at the Environmental Chemistry Laboratory of the Ceará Nucleus of Industrial Technology Foundation (NUTEC) during the second half of 2019.