SELF-PURIFICATION CAPACITY OF URBAN WATERCOURSES IN CRITICAL FLOW SITUATIONS: THE CASE OF PERNADA STREAM, PARAÍSO DO TOCANTINS - TO.
DOI:
https://doi.org/10.19177/rgsa.v10e42021218-238Keywords:
Self-purification, Pernada Stream, Streeter-Phelps' Model.Abstract
This study aimed to evaluate the self-purification capacity of the Pernada Stream, located in the municipality of Paraíso do Tocantins – TO, in critical flow situations. Therefore, initially, it was performed a surveying of the main uses developed along the watercourse, being observed that the discharge of effluents treated by Sewage Treatment Station would be the use with the greatest potential for compromising its selfpurification capacity. The next step was to flow measurements upstream of thedischarge of effluents in the period from May to October 2015 with finality to identify the critical flow of the watercourse. Finally, the Streeter-Phelps mathematical model applied, being observed losses in the self-purification capacity of the stream during the critical flow period, which presented results in disagreement with the legislation for the parameter BOD5.
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2021-12-14
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O trabalho Revista Gestão & Sustentabilidade Ambiental foi licenciado com uma Licença Creative Commons - Atribuição - NãoComercial - CompartilhaIgual 3.0 Brasil.
Com base no trabalho disponível em www.portaldeperiodicos.unisul.br.
How to Cite
SELF-PURIFICATION CAPACITY OF URBAN WATERCOURSES IN CRITICAL FLOW SITUATIONS: THE CASE OF PERNADA STREAM, PARAÍSO DO TOCANTINS - TO. (2021). Revista Gestão & Sustentabilidade Ambiental, 10(4), 218-238. https://doi.org/10.19177/rgsa.v10e42021218-238