Sewage treatment efficiencies estimation for urban areas located in the River Pardo’s watershed by associating nonlinear programming and water quality modeling

Main Article Content

Lucas Gonçalves Rocha
Karinnie Nascimento de Almeida
José Antonio Tosta dos Reis
Antonio Sergio Ferreira Mendonça
Fernando das Graças Braga da Silva

Abstract

Estimating efficiencies required for sewage treatment plants within a river watershed, where there are usually multiple sewage discharges and water withdrawals points in watercourses, presenting different quality conditions and sewage assimilation capacities, is a complex task. In this context, combined optimization techniques and water quality modeling can be important tools to support sewage treatment efficiencies appropriation processes. In the present paper, QUAL-UFMG water quality model and Nonlinear Programming (NLP) are jointly applied to sewage treatment levels selection for the river Pardo’s (watercourse located in Espírito Santo State, Southern region, Brazil) watershed different urban areas. Four different optimization models were tested for estimating the minimum organic matter removal efficiencies. The results indicate strong dependence between the estimated minimum organic matter removal efficiencies within the watershed and equity measures incorporated in the optimization models.

Article Details

How to Cite
Rocha, L., Almeida, K., Reis, J. A., Mendonça, A. S., & Silva, F. (2021). Sewage treatment efficiencies estimation for urban areas located in the River Pardo’s watershed by associating nonlinear programming and water quality modeling. Brazilian Journal of Environmental Sciences (Online), 56(1), 65-75. https://doi.org/10.5327/Z2176-947820200731
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Articles
Author Biographies

Lucas Gonçalves Rocha, Universidade Federal do Espírito Santo (UFES)

Universidade / Instituição: Universidade Federal do Espírito Santo - UFES

Cidade: Vitória

Estado: Espírito Santo

País: Brasil

Departamento: Departamento de Engenharia Ambiental

 

Karinnie Nascimento de Almeida, Universidade Federal do Espírito Santo (UFES)

Universidade / Instituição: Universidade Federal do Espírito Santo - UFES

Cidade: Vitória

Estado: Espírito Santo

País: Brasil

Departamento: Departamento de Engenharia Ambiental

 

José Antonio Tosta dos Reis, Universidade Federal do Espírito Santo (UFES)

Universidade Federal do Espírito Santo - UFES

Cidade: Vitória

Estado: Espírito Santo

País: Brasil

Departamento: Departamento de Engenharia Ambiental

 

Antonio Sergio Ferreira Mendonça, Universidade Federal do Espírito Santo (UFES)

Universidade Federal do Espírito Santo - UFES

Cidade: Vitória

Estado: Espírito Santo

País: Brasil

Departamento: Departamento de Engenharia Ambiental

 

Fernando das Graças Braga da Silva, Universidade Federal de Itajubá - UNIFEI

Universidade Federal de Itajubá - UNIFEI

Cidade: Itajubá

Estado: Minas Gerais

País: Brasil

Departamento: Instituto de Recursos Naturais