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Influence of sewage disposal on the water quality of the Sucuru River alluvial aquifer in the municipality of Sumé-PB, Brazil
ABSTRACT The objective of this study was to evaluate the influence of sewage discharge on the quality of the water exploited from the Sucuru River alluvial aquifer, located in the municipality of Sumé, Paraíba state, Brazil. The study was based on physical-chemical and microbiological analyses of th...
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Published in: | Revista brasileira de recursos hídricos 2018-01, Vol.23 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites |
Online Access: | Get full text |
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Summary: | ABSTRACT The objective of this study was to evaluate the influence of sewage discharge on the quality of the water exploited from the Sucuru River alluvial aquifer, located in the municipality of Sumé, Paraíba state, Brazil. The study was based on physical-chemical and microbiological analyses of the waters from nine wells located along the alluvium. The results of the indicators showed that the alluvial aquifer studied has the capacity to filter and disperse pollutants. It is possible to observe a gradual reduction of chlorides, chemical oxygen demand and total dissolved solids along the alluvial perimeter. Thus, urban sewage becomes a source of water recharge with potential to be reused. We concluded that the utilization of water from this type of aquifer, which has been intensified in recent dry years, can be established in a safe and sustainable way. However, a strict monitoring plan for controlling recharge groundwater levels is highly necessary. Further studies in this direction should lead to a model of adequate use of this system, which can be reproduced in the Brazilian semi-arid region.
RESUMO O objetivo desta pesquisa foi avaliar a influência do lançamento de esgotos na qualidade da água explotada do aquífero aluvial do rio Sucuru, localizado no município de Sumé - PB. O estudo foi realizado a partir de análises físico-químicas e microbiológicas das águas de nove poços situados ao longo do aluvião. Os resultados dos indicadores mostraram que o aquífero aluvial estudado possui capacidade de filtrar e dispersar poluentes, sendo possível observar ao longo do perímetro aluvial uma redução gradativa de cloretos, demanda química de oxigênio e sólidos totais dissolvidos. Nesse sentido, o esgoto urbano se transforma numa fonte de recarga hídrica com potencialidade de ser reaproveitado. Conclui-se que o uso da água desse tipo de aquífero, intensificado nos recentes anos secos, pode se estabelecer de forma segura e sustentável mediante a recarga controlada do aquífero com acompanhamento rigoroso das condições qualitativas da água/esgoto circulante, associada a avaliações quantitativas. O aprofundamento de estudos nesta direção deve levar a um modelo de utilização adequada desse sistema, que pode ser reproduzido na região do semiárido brasileiro. |
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ISSN: | 1414-381X 2318-0331 2318-0331 |
DOI: | 10.1590/2318-0331.231820160052 |