A Simplified Model to Simulate pH and Alkalinity in the Mixing Zone Downstream of an Acidic Discharge
A modelling methodology was developed that simulates the resulting pH and alkalinity in the mixing zone when acidic water is discharged into a river. The input to the model are the: pH, alkalinity, flow, and temperature of both the river water and the acidic discharge. Two different scenarios were s...
Published in: | Mine Water and the Environment |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://lup.lub.lu.se/record/a4a996aa-326a-4475-b606-b9194a19ad0a https://doi.org/10.1007/s10230-018-0515-3 |
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ftulundlup:oai:lup.lub.lu.se:a4a996aa-326a-4475-b606-b9194a19ad0a 2023-05-15T15:52:42+02:00 A Simplified Model to Simulate pH and Alkalinity in the Mixing Zone Downstream of an Acidic Discharge Nhantumbo, Clemencio Larsson, Rolf Larson, Magnus Juízo, Dinis Persson, Kenneth M. 2018-09 https://lup.lub.lu.se/record/a4a996aa-326a-4475-b606-b9194a19ad0a https://doi.org/10.1007/s10230-018-0515-3 eng eng Springer https://lup.lub.lu.se/record/a4a996aa-326a-4475-b606-b9194a19ad0a http://dx.doi.org/10.1007/s10230-018-0515-3 scopus:85040867010 Mine Water and the Environment; 37(3), pp 552-564 (2018) ISSN: 1025-9112 Water Engineering Acid mine drainage Modelling River flow Water quality contributiontojournal/article info:eu-repo/semantics/article text 2018 ftulundlup https://doi.org/10.1007/s10230-018-0515-3 2023-02-01T23:35:58Z A modelling methodology was developed that simulates the resulting pH and alkalinity in the mixing zone when acidic water is discharged into a river. The input to the model are the: pH, alkalinity, flow, and temperature of both the river water and the acidic discharge. Two different scenarios were simulated: (1) a change of pH in the acidic discharge, assuming constant flow; and (2) a change in the flow of the acidic discharge, assuming constant pH. The model incorporates the effect of carbonic acid and the modelled values agree well with the laboratory results. The model setup was subsequently used to predict the anticipated effect of contamination of the Zambezi River in Mozambique. The results indicate that the river will be impacted if the average pH of the water in the tributaries coming from the mining area is below 3. The model could be used by water managers to predict the potential impact of acidic discharges in poorly monitored rivers. Article in Journal/Newspaper Carbonic acid Lund University Publications (LUP) Mine Water and the Environment 37 3 552 564 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Water Engineering Acid mine drainage Modelling River flow Water quality |
spellingShingle |
Water Engineering Acid mine drainage Modelling River flow Water quality Nhantumbo, Clemencio Larsson, Rolf Larson, Magnus Juízo, Dinis Persson, Kenneth M. A Simplified Model to Simulate pH and Alkalinity in the Mixing Zone Downstream of an Acidic Discharge |
topic_facet |
Water Engineering Acid mine drainage Modelling River flow Water quality |
description |
A modelling methodology was developed that simulates the resulting pH and alkalinity in the mixing zone when acidic water is discharged into a river. The input to the model are the: pH, alkalinity, flow, and temperature of both the river water and the acidic discharge. Two different scenarios were simulated: (1) a change of pH in the acidic discharge, assuming constant flow; and (2) a change in the flow of the acidic discharge, assuming constant pH. The model incorporates the effect of carbonic acid and the modelled values agree well with the laboratory results. The model setup was subsequently used to predict the anticipated effect of contamination of the Zambezi River in Mozambique. The results indicate that the river will be impacted if the average pH of the water in the tributaries coming from the mining area is below 3. The model could be used by water managers to predict the potential impact of acidic discharges in poorly monitored rivers. |
format |
Article in Journal/Newspaper |
author |
Nhantumbo, Clemencio Larsson, Rolf Larson, Magnus Juízo, Dinis Persson, Kenneth M. |
author_facet |
Nhantumbo, Clemencio Larsson, Rolf Larson, Magnus Juízo, Dinis Persson, Kenneth M. |
author_sort |
Nhantumbo, Clemencio |
title |
A Simplified Model to Simulate pH and Alkalinity in the Mixing Zone Downstream of an Acidic Discharge |
title_short |
A Simplified Model to Simulate pH and Alkalinity in the Mixing Zone Downstream of an Acidic Discharge |
title_full |
A Simplified Model to Simulate pH and Alkalinity in the Mixing Zone Downstream of an Acidic Discharge |
title_fullStr |
A Simplified Model to Simulate pH and Alkalinity in the Mixing Zone Downstream of an Acidic Discharge |
title_full_unstemmed |
A Simplified Model to Simulate pH and Alkalinity in the Mixing Zone Downstream of an Acidic Discharge |
title_sort |
simplified model to simulate ph and alkalinity in the mixing zone downstream of an acidic discharge |
publisher |
Springer |
publishDate |
2018 |
url |
https://lup.lub.lu.se/record/a4a996aa-326a-4475-b606-b9194a19ad0a https://doi.org/10.1007/s10230-018-0515-3 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_source |
Mine Water and the Environment; 37(3), pp 552-564 (2018) ISSN: 1025-9112 |
op_relation |
https://lup.lub.lu.se/record/a4a996aa-326a-4475-b606-b9194a19ad0a http://dx.doi.org/10.1007/s10230-018-0515-3 scopus:85040867010 |
op_doi |
https://doi.org/10.1007/s10230-018-0515-3 |
container_title |
Mine Water and the Environment |
container_volume |
37 |
container_issue |
3 |
container_start_page |
552 |
op_container_end_page |
564 |
_version_ |
1766387813186535424 |