Capability of HYDRUS wetland module to simulate flow and nitrogen removal processes in pilot-scale treatment peatlands under frost and no-frost conditions
Abstract The HYDRUS wetland module is widely used together with the biokinetic model CWM1 to simulate reactive transport of contaminants in constructed wetlands. However, this approach has not been used previously to simulate processes in peat-based wetlands operating in cold climates and treating m...
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ftunivoulu:oai:oulu.fi:nbnfi-fe2022120769851 2023-07-30T04:01:50+02:00 Capability of HYDRUS wetland module to simulate flow and nitrogen removal processes in pilot-scale treatment peatlands under frost and no-frost conditions Khan, U. A. (Uzair Akbar) Postila, H. (Heini) Kujala, K. (Katharina) Heiderscheidt, E. (Elisangela) Ronkanen, A.-K. (Anna-Kaisa) 2022 application/pdf http://urn.fi/urn:nbn:fi-fe2022120769851 eng eng Elsevier info:eu-repo/semantics/openAccess © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). https://creativecommons.org/licenses/by/4.0/ Cold climate Mine water Model Nitrogen Peatland info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2022 ftunivoulu 2023-07-08T20:00:30Z Abstract The HYDRUS wetland module is widely used together with the biokinetic model CWM1 to simulate reactive transport of contaminants in constructed wetlands. However, this approach has not been used previously to simulate processes in peat-based wetlands operating in cold climates and treating mining-influenced water. In this study, the goal was to clarify changes in flow, transport, and nitrogen removal processes in cold climate treatment peatlands by assessing the performance of HYDRUS-CWM1. Flow and non-reactive transport of tracer, and reactive transport of ammonium, nitrite, and nitrate, in two pilot wetlands operated under controlled conditions representing frozen (winter) and frost-free (summer) periods were simulated. Model simulation outputs were compared against data obtained from the pilot wetlands and from a full-scale treatment peatland treating mining-influenced water in an Arctic region. Initial peaks in tracer concentration were simulated satisfactorily, but transformation and transport of nitrogen species in treatment peatlands, especially under partially frozen conditions, were modeled with only limited success. Limitations of the model and the assumptions made for the simulations have been discussed to highlight the challenges in modeling of treatment peatlands. Article in Journal/Newspaper Arctic Jultika - University of Oulu repository Arctic |
institution |
Open Polar |
collection |
Jultika - University of Oulu repository |
op_collection_id |
ftunivoulu |
language |
English |
topic |
Cold climate Mine water Model Nitrogen Peatland |
spellingShingle |
Cold climate Mine water Model Nitrogen Peatland Khan, U. A. (Uzair Akbar) Postila, H. (Heini) Kujala, K. (Katharina) Heiderscheidt, E. (Elisangela) Ronkanen, A.-K. (Anna-Kaisa) Capability of HYDRUS wetland module to simulate flow and nitrogen removal processes in pilot-scale treatment peatlands under frost and no-frost conditions |
topic_facet |
Cold climate Mine water Model Nitrogen Peatland |
description |
Abstract The HYDRUS wetland module is widely used together with the biokinetic model CWM1 to simulate reactive transport of contaminants in constructed wetlands. However, this approach has not been used previously to simulate processes in peat-based wetlands operating in cold climates and treating mining-influenced water. In this study, the goal was to clarify changes in flow, transport, and nitrogen removal processes in cold climate treatment peatlands by assessing the performance of HYDRUS-CWM1. Flow and non-reactive transport of tracer, and reactive transport of ammonium, nitrite, and nitrate, in two pilot wetlands operated under controlled conditions representing frozen (winter) and frost-free (summer) periods were simulated. Model simulation outputs were compared against data obtained from the pilot wetlands and from a full-scale treatment peatland treating mining-influenced water in an Arctic region. Initial peaks in tracer concentration were simulated satisfactorily, but transformation and transport of nitrogen species in treatment peatlands, especially under partially frozen conditions, were modeled with only limited success. Limitations of the model and the assumptions made for the simulations have been discussed to highlight the challenges in modeling of treatment peatlands. |
format |
Article in Journal/Newspaper |
author |
Khan, U. A. (Uzair Akbar) Postila, H. (Heini) Kujala, K. (Katharina) Heiderscheidt, E. (Elisangela) Ronkanen, A.-K. (Anna-Kaisa) |
author_facet |
Khan, U. A. (Uzair Akbar) Postila, H. (Heini) Kujala, K. (Katharina) Heiderscheidt, E. (Elisangela) Ronkanen, A.-K. (Anna-Kaisa) |
author_sort |
Khan, U. A. (Uzair Akbar) |
title |
Capability of HYDRUS wetland module to simulate flow and nitrogen removal processes in pilot-scale treatment peatlands under frost and no-frost conditions |
title_short |
Capability of HYDRUS wetland module to simulate flow and nitrogen removal processes in pilot-scale treatment peatlands under frost and no-frost conditions |
title_full |
Capability of HYDRUS wetland module to simulate flow and nitrogen removal processes in pilot-scale treatment peatlands under frost and no-frost conditions |
title_fullStr |
Capability of HYDRUS wetland module to simulate flow and nitrogen removal processes in pilot-scale treatment peatlands under frost and no-frost conditions |
title_full_unstemmed |
Capability of HYDRUS wetland module to simulate flow and nitrogen removal processes in pilot-scale treatment peatlands under frost and no-frost conditions |
title_sort |
capability of hydrus wetland module to simulate flow and nitrogen removal processes in pilot-scale treatment peatlands under frost and no-frost conditions |
publisher |
Elsevier |
publishDate |
2022 |
url |
http://urn.fi/urn:nbn:fi-fe2022120769851 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_rights |
info:eu-repo/semantics/openAccess © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). https://creativecommons.org/licenses/by/4.0/ |
_version_ |
1772812583617691648 |