African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5014

Full Length Research Paper

Physicochemical and microbiological evaluation of water from western part of the Rio Grande does Norte, Brazil

Manoel Marcelino da Silva
  • Manoel Marcelino da Silva
  • Departamento de Biociências – DBIO, UFERSA - Universidade Federal Rural Do Semi-Árido, Brazil.
  • Google Scholar
Francisco Marlon Carneiro Feijó
  • Francisco Marlon Carneiro Feijó
  • Departamento de Biociências – DBIO, UFERSA - Universidade Federal Rural Do Semi-Árido, Brazil.
  • Google Scholar
Nilza Dutra Alves
  • Nilza Dutra Alves
  • Departamento de Biociências – DBIO, UFERSA - Universidade Federal Rural Do Semi-Árido, Brazil.
  • Google Scholar
Gardênia Silvana de Oliveira Rodrigues
  • Gardênia Silvana de Oliveira Rodrigues
  • Departamento de Biociências – DBIO, UFERSA - Universidade Federal Rural Do Semi-Árido, Brazil.
  • Google Scholar
Caio Sergio Santos
  • Caio Sergio Santos
  • Departamento de Biociências – DBIO, UFERSA - Universidade Federal Rural Do Semi-Árido, Brazil.
  • Google Scholar
Fernando da Costa Fernandes
  • Fernando da Costa Fernandes
  • Departamento de Biociências – DBIO, UFERSA - Universidade Federal Rural Do Semi-Árido, Brazil.
  • Google Scholar


  •  Received: 30 January 2019
  •  Accepted: 06 March 2020
  •  Published: 30 April 2020

Abstract

The water quality evaluation with reference to parameters of drinkability is made through a series of analyses, which are physicochemical or microbiological. This study aims to evaluate the physicochemical and microbiological parameters of drinking water distribution network in the western part of the Rio Grande do Norte, Brazil. Water samples were collected in several neighborhoods, and divided into 5 zones. In each of those five points two samples were collected: Water receiver of water distribution network and household water collector. In relation to the physical parameters, color and turbidity recorded higher results in the collectors of homes, and identified the lack of maintenance. For the studied microbial tests, the presence of coliform group bacteria was verified, being the major contamination in the receivers. This was justified by the lack of maintenance and prohibition of sealing of these collectors, allowing the access of rodents, insects and other carriers of microorganisms.  Therefore, the water consumed at the collection points in the western zone of the RN / Brazil presents adequate physicochemical and microbiological indices in disagreement with the legislation that regulates water portability.
 
Key words: Water quality, coliforms, microorganisms, portability, water supply.