Impact on urban river water quality and pollution control of water environmental management projects based on SMS-Mike21 coupled simulation
Abstract To explore the impact of expanding Nanyang Sewage Purification Center (NSPC) on the main sewage discharge area of Bai River, we constructed a 2D hydrodynamic-water quality model based on surface water modeling system (SMS) and Mike21. Simulating three sewage discharge conditions in wet, nor...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-03-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-57201-z |
| _version_ | 1797247337791225856 |
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| author | Huaibin Wei Yiding Rao Jing Liu Yao Wang Yongxiao Cao |
| author_facet | Huaibin Wei Yiding Rao Jing Liu Yao Wang Yongxiao Cao |
| author_sort | Huaibin Wei |
| collection | DOAJ |
| description | Abstract To explore the impact of expanding Nanyang Sewage Purification Center (NSPC) on the main sewage discharge area of Bai River, we constructed a 2D hydrodynamic-water quality model based on surface water modeling system (SMS) and Mike21. Simulating three sewage discharge conditions in wet, normal, and dry season, we evaluated three indicators (COD, NH3-N, and BOD5) by the single-factor pollution index and provided recommendations for water environment management. The results showed that, maximum absolute error of water level was 0.08 m, percentage bias coefficient of COD, NH3-N and BOD5 were 19.3%, 16.2% and 23.1%, indicating the SMS and Mike21 coupling model was applicable; water quality of the assessment section were upgraded from the original class IV, V, V (Condition 1) to class IV, III, II (Condition 2) and class IV, III, III (Condition 3) in the wet, normal and dry season, indicating that NSPC's expansion had improved the water quality of the assessment section; as the primary pollutant, BOD5 concentration in the downstream was lower than the upstream, which was due to the dilution effect of river. Therefore, on the basis of expanding NSPC, we recommend to remediation of BOD5 by physical, chemical, and biological methods. This study broadens new ideas for the application of Mike21, and provide a reference for the prevention and improvement of river water pollution in urban areas. |
| first_indexed | 2024-04-24T19:57:06Z |
| format | Article |
| id | doaj.art-6dc46af344ce44c8a6d57d40ada7c528 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-24T19:57:06Z |
| publishDate | 2024-03-01 |
| publisher | Nature Portfolio |
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| spelling | doaj.art-6dc46af344ce44c8a6d57d40ada7c5282024-03-24T12:15:56ZengNature PortfolioScientific Reports2045-23222024-03-0114111210.1038/s41598-024-57201-zImpact on urban river water quality and pollution control of water environmental management projects based on SMS-Mike21 coupled simulationHuaibin Wei0Yiding Rao1Jing Liu2Yao Wang3Yongxiao Cao4School of Management and Economics, North China University of Water Resources and Electric PowerSchool of Water Conservancy, North China University of Water Resources and Electric PowerSchool of Water Resources, North China University of Water Resources and Electric PowerSchool of Water Conservancy, North China University of Water Resources and Electric PowerSchool of Water Conservancy, North China University of Water Resources and Electric PowerAbstract To explore the impact of expanding Nanyang Sewage Purification Center (NSPC) on the main sewage discharge area of Bai River, we constructed a 2D hydrodynamic-water quality model based on surface water modeling system (SMS) and Mike21. Simulating three sewage discharge conditions in wet, normal, and dry season, we evaluated three indicators (COD, NH3-N, and BOD5) by the single-factor pollution index and provided recommendations for water environment management. The results showed that, maximum absolute error of water level was 0.08 m, percentage bias coefficient of COD, NH3-N and BOD5 were 19.3%, 16.2% and 23.1%, indicating the SMS and Mike21 coupling model was applicable; water quality of the assessment section were upgraded from the original class IV, V, V (Condition 1) to class IV, III, II (Condition 2) and class IV, III, III (Condition 3) in the wet, normal and dry season, indicating that NSPC's expansion had improved the water quality of the assessment section; as the primary pollutant, BOD5 concentration in the downstream was lower than the upstream, which was due to the dilution effect of river. Therefore, on the basis of expanding NSPC, we recommend to remediation of BOD5 by physical, chemical, and biological methods. This study broadens new ideas for the application of Mike21, and provide a reference for the prevention and improvement of river water pollution in urban areas.https://doi.org/10.1038/s41598-024-57201-zHydrodynamic-water quality coupling simulationSMS-Mike21 coupling modelHydrology periodWater environmental management projectsUrban river |
| spellingShingle | Huaibin Wei Yiding Rao Jing Liu Yao Wang Yongxiao Cao Impact on urban river water quality and pollution control of water environmental management projects based on SMS-Mike21 coupled simulation Scientific Reports Hydrodynamic-water quality coupling simulation SMS-Mike21 coupling model Hydrology period Water environmental management projects Urban river |
| title | Impact on urban river water quality and pollution control of water environmental management projects based on SMS-Mike21 coupled simulation |
| title_full | Impact on urban river water quality and pollution control of water environmental management projects based on SMS-Mike21 coupled simulation |
| title_fullStr | Impact on urban river water quality and pollution control of water environmental management projects based on SMS-Mike21 coupled simulation |
| title_full_unstemmed | Impact on urban river water quality and pollution control of water environmental management projects based on SMS-Mike21 coupled simulation |
| title_short | Impact on urban river water quality and pollution control of water environmental management projects based on SMS-Mike21 coupled simulation |
| title_sort | impact on urban river water quality and pollution control of water environmental management projects based on sms mike21 coupled simulation |
| topic | Hydrodynamic-water quality coupling simulation SMS-Mike21 coupling model Hydrology period Water environmental management projects Urban river |
| url | https://doi.org/10.1038/s41598-024-57201-z |
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