Quantifying the fate of wastewater nitrogen discharged to a Canadian river

Addition of nutrients, such as nitrogen, can degrade water quality in lakes, rivers, and estuaries. To predict the fate of nutrient inputs, an understanding of the biogeochemical cycling of nutrients is needed. We develop and employ a novel, parsimonious, process-based model of nitrogen concentratio...

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Main Authors: Jason J. Venkiteswaran, Sherry L. Schiff, Brian P. Ingalls
Format: Article
Language:English
Published: Canadian Science Publishing 2019-07-01
Series:FACETS
Subjects:
Online Access:https://www.facetsjournal.com/doi/10.1139/facets-2018-0028
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author Jason J. Venkiteswaran
Sherry L. Schiff
Brian P. Ingalls
author_facet Jason J. Venkiteswaran
Sherry L. Schiff
Brian P. Ingalls
author_sort Jason J. Venkiteswaran
collection DOAJ
description Addition of nutrients, such as nitrogen, can degrade water quality in lakes, rivers, and estuaries. To predict the fate of nutrient inputs, an understanding of the biogeochemical cycling of nutrients is needed. We develop and employ a novel, parsimonious, process-based model of nitrogen concentrations and stable isotopes that quantifies the competing processes of volatilization, biological assimilation, nitrification, and denitrification in nutrient-impacted rivers. Calibration of the model to nitrogen discharges from two wastewater treatment plants in the Grand River, Ontario, Canada, show that ammonia volatilization was negligible relative to biological assimilation, nitrification, and denitrification within 5 km of the discharge points.
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spelling doaj.art-d0324bcdeefb48b9aa1812e15c5197bd2022-12-21T23:33:25ZengCanadian Science PublishingFACETS2371-16712371-16712019-07-014131533510.1139/facets-2018-0028Quantifying the fate of wastewater nitrogen discharged to a Canadian riverJason J. Venkiteswaran0Sherry L. Schiff1Brian P. Ingalls2Department of Geography and Environmental Studies, Wilfrid Laurier University, 75 University Avenue West, Waterloo, ON N2L 3C5, Canada.Department of Earth and Environmental Sciences, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.Department of Applied Mathematics, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.Addition of nutrients, such as nitrogen, can degrade water quality in lakes, rivers, and estuaries. To predict the fate of nutrient inputs, an understanding of the biogeochemical cycling of nutrients is needed. We develop and employ a novel, parsimonious, process-based model of nitrogen concentrations and stable isotopes that quantifies the competing processes of volatilization, biological assimilation, nitrification, and denitrification in nutrient-impacted rivers. Calibration of the model to nitrogen discharges from two wastewater treatment plants in the Grand River, Ontario, Canada, show that ammonia volatilization was negligible relative to biological assimilation, nitrification, and denitrification within 5 km of the discharge points.https://www.facetsjournal.com/doi/10.1139/facets-2018-0028rivernitrogennitrateammoniawastewaterisotope
spellingShingle Jason J. Venkiteswaran
Sherry L. Schiff
Brian P. Ingalls
Quantifying the fate of wastewater nitrogen discharged to a Canadian river
FACETS
river
nitrogen
nitrate
ammonia
wastewater
isotope
title Quantifying the fate of wastewater nitrogen discharged to a Canadian river
title_full Quantifying the fate of wastewater nitrogen discharged to a Canadian river
title_fullStr Quantifying the fate of wastewater nitrogen discharged to a Canadian river
title_full_unstemmed Quantifying the fate of wastewater nitrogen discharged to a Canadian river
title_short Quantifying the fate of wastewater nitrogen discharged to a Canadian river
title_sort quantifying the fate of wastewater nitrogen discharged to a canadian river
topic river
nitrogen
nitrate
ammonia
wastewater
isotope
url https://www.facetsjournal.com/doi/10.1139/facets-2018-0028
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