Physico-chemical quality of waters of tubular wells located in the interior of the State of Rio Grande do Norte

Publié-e
2018-02-23
DOI : https://doi.org/10.14295/ras.v32i1.29098

    Auteurs-es

  • Gerbeson Carlos Batista Dantas UFERSA
  • Henriqueta Monalisa Farias
  • Camila Rafaela Santos de Oliveira
  • Arthuro Munay Dantas da Silveira
  • Sâmea Valensca Alves Barros

Résumé

This work aims to perform the physical-chemical characterization of the water of two tubular wells, in the period of three months, located in the rural area of the municipality of Parelhas, State of Rio Grande do Norte, and later, analyze the viability of use of the raw water for consumption human. In order to characterize them, 15 parameters were determined for both sample A and sample B: pH, electrical conductivity, source temperature, bicarbonate (HCO3-), chloride (Cl-), Total Hardness (CaCO3), hardness (Ca2+), hardness (Mg2+), alkalinity, dissolved total solids, dissolved oxygen, ammoniacal nitrogen, nitrite (NO2-), nitrate (NO3-) and iron. According to the tests, the waters under analysis presented disagreements in relation to the Potability Ordinance 2914/2011 in the following parameters: Alkalinity, total dissolved solids, nitrates, nitrites and iron. In addition, the waters were classified as hard (sample B) and very hard (sample A), presented extremely high conductivity, high to 590 μS.cm-1 and low dissolved oxygen content. Finally, this study concludes from the results of the physical-chemical parameters of sample A and sample B that the gross water from the wells is inappropriate for human consumption.

Comment citer
Dantas, G. C. B., Farias, H. M., Oliveira, C. R. S. de, Silveira, A. M. D. da, & Barros, S. V. A. (2018). Physico-chemical quality of waters of tubular wells located in the interior of the State of Rio Grande do Norte. Águas Subterrâneas, 32(1), 91–96. https://doi.org/10.14295/ras.v32i1.29098