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Open AccessArticle

From Monitoring and Modeling to Management: How to Improve Water Quality in Brazilian Rivers? A Case Study: Piabanha River Watershed

1
Technology Center, Alberto Luiz Coimbra Institute for Postgraduate Studies and Engineering Research (COPPE), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 20211, Brazil
2
Federal Fluminense Institute, Postgraduate Coordination in Water Resources Management and Sustainability, São João da Barra Advanced Campus, São João da Barra, Rio de Janeiro 20211, Brazil
3
Piabanha Watershed Committee, Alto da Serra, Petrópolis 25685, Brazil
4
Oswaldo Cruz Foundation (Fiocruz), Sanitation and Environmental Health Department, National School of Public Health Sergio Arouca, Rio de Janeiro 20211, Brazil
*
Author to whom correspondence should be addressed.
Water 2021, 13(2), 176; https://doi.org/10.3390/w13020176
Received: 25 November 2020 / Revised: 5 January 2021 / Accepted: 7 January 2021 / Published: 13 January 2021
(This article belongs to the Section Water Resources Management, Policy and Governance)
Water quality has been a global concern, as evidenced by UN Sustainable Development Goals. The current paper has focused on the Piabanha River rehabilitation as a case study which can be generalized to other similar watersheds. A monitoring program during a hydrological year was carried out, and different databases were used to calibrate and validate the QUAL-UFMG water quality model. Sanitation is the major problem in the watershed, notably in its headwater catchments, which concentrate the most urbanized regions where water quality is worse in the dry season due to low river flows. Thus, simulations of the river water quality have been performed through computational modeling suggesting organic load reductions in some sub-basins. In conclusion, some strategies to improve water quality have been discussed: (i) The water quality rehabilitation must consider progressive goals of pollution reduction starting with an initial implementation in a reduced area. The monitoring should be based on a few parameters relevant and simple to monitor. (ii) Pollution reduction ought to be carried out strategically with deadlines and intermediate goals that must be agreed upon between the stakeholders in the watershed. (iii) Watershed committees should supervise projects to improve water quality in partnership with the State Prosecutor’s Office. View Full-Text
Keywords: river rehabilitation; water quality framing; water quality modeling; water quality monitoring; water resources management; water use classification river rehabilitation; water quality framing; water quality modeling; water quality monitoring; water resources management; water use classification
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MDPI and ACS Style

Costa, D.d.A.; Silva Junior, L.C.S.d.; Azevedo, J.P.S.d.; Santos, M.A.d.; Assumpção, R.d.S.F.V. From Monitoring and Modeling to Management: How to Improve Water Quality in Brazilian Rivers? A Case Study: Piabanha River Watershed. Water 2021, 13, 176.

AMA Style

Costa DdA, Silva Junior LCSd, Azevedo JPSd, Santos MAd, Assumpção RdSFV. From Monitoring and Modeling to Management: How to Improve Water Quality in Brazilian Rivers? A Case Study: Piabanha River Watershed. Water. 2021; 13(2):176.

Chicago/Turabian Style

Costa, David d.A.; Silva Junior, Luis C.S.d.; Azevedo, José P.S.d.; Santos, Marco A.d.; Assumpção, Rafaela d.S.F.V. 2021. "From Monitoring and Modeling to Management: How to Improve Water Quality in Brazilian Rivers? A Case Study: Piabanha River Watershed" Water 13, no. 2: 176.

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