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Advisor(s)
Abstract(s)
O abastecimento público de água é uma preocupação constante e crescente em termos de
saúde pública, devido à escassez e deterioração da qualidade dos recursos hídricos. A água não
tratada pode ser imprópria para consumo humano, pode conter microrganismos indesejáveis e
patogénicos ou produtos químicos, capazes de causar doenças, de veiculação hídrica, que são
causadas principalmente por microrganismos patogénicos de origem entérica, animal ou
humana, transmitidos pela rota fecal-oral (Amaral LA et al, 2003). Os coliformes são
microrganismos indicadores de contaminação fecal, sendo indicadores importantes da
qualidade e potabilidade da água.
Este trabalho teve como finalidade a avaliação global da qualidade microbiológica da água
distribuída na Universidade da Beira Interior a partir de captações próprias de água de origem
subterrânea, através de amostragens mensais efetuadas entre o ano 2014 e 2015, dando
cumprimento à legislação em vigor, nomeadamente o Decreto-Lei n.º 306/2007, de 27 de agosto
e também garantir a manutenção de um controlo operacional que permita detetar possíveis
anomalias na qualidade da água, ocasionais ou de caracter sistemático, de modo a permitir que
sejam postas em prática medidas preventivas e/ou corretivas.
Dado que se trata de uma Instituição de Ensino, em que o uso da água é extremamente
diversificado, é de extrema importância avaliar a potabilidade da água de consumo, pois ela é
utilizada para hidratação, em todas as atividades de higiene e na preparação de alimentos.
As análises microbiológicas foram realizadas no Laboratório de Microbiologia do Departamento
de Química da Universidade da Beira Interior. Os métodos de análise foram efetuados de acordo
com o Decreto-Lei n.º 306/2007, de 27 de agosto para controlo da qualidade da água de
consumo humano seguindo normas internacionais para os seguintes parâmetros: pesquisa e
quantificação de coliformes totais e Escherichia coli; pesquisa e quantificação de Enterococos
intestinais; pesquisa e quantificação de Clostridium perfringens e contagem de microrganismos
a 22 ºC e 36 ºC.
The public water supply is of great and growing concern in terms of public health, due to the deteriorating quality of water resources witch are becoming scarce. Untreated water may be unfit for human consumption, because it may contain undesirable microorganisms or chemicals capable of causing waterborne disease. They are mainly caused by pathogenic microorganisms of enteric origin, animal or human, transmitted by fecal-oral route (Amaral, LA et al., 2003). Coliforms are indicator bacteria of fecal contamination, that are important indicators of the quality and potability of water. This work aimed to the overall assessment of the microbiological quality of water distributed in the University of Beira Interior from its own wells. Analyses were performed in samples collected monthly, between 2014 and 2015, in compliance with the legislation, namely Decree 306/2007 (27 August). Also it was intended to ensure the maintenance of an effective monitoring that allows detecting possible anomalies in the water quality, occasional or systematic, in order to allow preventive and/or corrective measures to be taken. Since it is an educational institution, where water use is extremely diverse, it is very important to evaluate the potability of the consumption water, since it is used for hydration in all hygiene activities and food preparation. Microbiological analyzes were performed at the Microbiology Laboratory of the Department of Chemistry at the University of Beira Interior. The analytical methods were in accordance with Decree 306/2007 (27 August) for control of drinking water quality, according to international standards for the following parameters: detection and quantification of total coliforms and Escherichia coli; search and quantification of intestinal enterococci; search and quantification of Clostridium perfringens and total microorganism counts at 22 and 36 ºC.
The public water supply is of great and growing concern in terms of public health, due to the deteriorating quality of water resources witch are becoming scarce. Untreated water may be unfit for human consumption, because it may contain undesirable microorganisms or chemicals capable of causing waterborne disease. They are mainly caused by pathogenic microorganisms of enteric origin, animal or human, transmitted by fecal-oral route (Amaral, LA et al., 2003). Coliforms are indicator bacteria of fecal contamination, that are important indicators of the quality and potability of water. This work aimed to the overall assessment of the microbiological quality of water distributed in the University of Beira Interior from its own wells. Analyses were performed in samples collected monthly, between 2014 and 2015, in compliance with the legislation, namely Decree 306/2007 (27 August). Also it was intended to ensure the maintenance of an effective monitoring that allows detecting possible anomalies in the water quality, occasional or systematic, in order to allow preventive and/or corrective measures to be taken. Since it is an educational institution, where water use is extremely diverse, it is very important to evaluate the potability of the consumption water, since it is used for hydration in all hygiene activities and food preparation. Microbiological analyzes were performed at the Microbiology Laboratory of the Department of Chemistry at the University of Beira Interior. The analytical methods were in accordance with Decree 306/2007 (27 August) for control of drinking water quality, according to international standards for the following parameters: detection and quantification of total coliforms and Escherichia coli; search and quantification of intestinal enterococci; search and quantification of Clostridium perfringens and total microorganism counts at 22 and 36 ºC.
Description
Keywords
Água da Torneira Análises de Rotina Legislação. Microbiologia