Effectiveness of combined sewer overflow treatment for dissolved oxygen improvement in the Chicago Waterways.
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| Title: | Effectiveness of combined sewer overflow treatment for dissolved oxygen improvement in the Chicago Waterways. |
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| Authors: | Alp, E.1 emre.alp@marquette.edu, Melching, C. S.1 charles.melching@marquette.edu, Zhang, H.2 heng.zhang@mwrd.org, Lanyon, R.2 richard.lanyon@mwrd.org |
| Source: | Water Science & Technology. 2007, Vol. 56 Issue 1, p215-222. 8p. 1 Chart, 3 Graphs, 1 Map. |
| Subjects: | Use attainability analysis, Water quality management, Hydrologic models, Dissolved oxygen in water, Gravity, Combined sewer overflows |
| Geographic Terms: | Chicago (Ill.), Illinois |
| Abstract: | An Use Attainability Analysis (UAA) has been initiated to evaluate what water-quality standards can be achieved in the Chicago Waterway System (CWS). There are nearly 200 combined sewer overflow (CSO) locations discharging to the CWS by gravity. Three CSO pumping stations also drain approximately 140 km². Because of the dynamic nature of the CWS the DUFLOW model that is capable of simulating hydraulics and water-quality processes under unsteady-flow conditions was used to evaluate the effectiveness of water-quality improvement techniques identified by the UAA including CSO treatment. Several CSO treatment levels were applied at gravity flow CSOs to evaluate improvement in dissolved oxygen (DO). The results show that pollutant removal at CSOs improves DO to a certain degree, but it still was not sufficient to bring DO concentrations to 5 mg/L or higher for 90% of the time during wet weather at most locations on the CWS. Flow from the pumping stations results in substantial stress on DO since a huge amount of un-treated water with a high pollution load is discharged into the CWS in a short period of time at a certain location. The simulation results indicate that CSO treatment does not effectively improve DO during wet-weather periods on the CWS. [ABSTRACT FROM AUTHOR] |
| Copyright of Water Science & Technology is the property of IWA Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 26423903 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Effectiveness of combined sewer overflow treatment for dissolved oxygen improvement in the Chicago Waterways. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Alp%2C+E%2E%22">Alp, E.</searchLink><relatesTo>1</relatesTo><i> emre.alp@marquette.edu</i><br /><searchLink fieldCode="AR" term="%22Melching%2C+C%2E+S%2E%22">Melching, C. S.</searchLink><relatesTo>1</relatesTo><i> charles.melching@marquette.edu</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+H%2E%22">Zhang, H.</searchLink><relatesTo>2</relatesTo><i> heng.zhang@mwrd.org</i><br /><searchLink fieldCode="AR" term="%22Lanyon%2C+R%2E%22">Lanyon, R.</searchLink><relatesTo>2</relatesTo><i> richard.lanyon@mwrd.org</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Water+Science+%26+Technology%22">Water Science & Technology</searchLink>. 2007, Vol. 56 Issue 1, p215-222. 8p. 1 Chart, 3 Graphs, 1 Map. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Use+attainability+analysis%22">Use attainability analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Water+quality+management%22">Water quality management</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrologic+models%22">Hydrologic models</searchLink><br /><searchLink fieldCode="DE" term="%22Dissolved+oxygen+in+water%22">Dissolved oxygen in water</searchLink><br /><searchLink fieldCode="DE" term="%22Gravity%22">Gravity</searchLink><br /><searchLink fieldCode="DE" term="%22Combined+sewer+overflows%22">Combined sewer overflows</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Chicago+%28Ill%2E%29%22">Chicago (Ill.)</searchLink><br /><searchLink fieldCode="DE" term="%22Illinois%22">Illinois</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: An Use Attainability Analysis (UAA) has been initiated to evaluate what water-quality standards can be achieved in the Chicago Waterway System (CWS). There are nearly 200 combined sewer overflow (CSO) locations discharging to the CWS by gravity. Three CSO pumping stations also drain approximately 140 km². Because of the dynamic nature of the CWS the DUFLOW model that is capable of simulating hydraulics and water-quality processes under unsteady-flow conditions was used to evaluate the effectiveness of water-quality improvement techniques identified by the UAA including CSO treatment. Several CSO treatment levels were applied at gravity flow CSOs to evaluate improvement in dissolved oxygen (DO). The results show that pollutant removal at CSOs improves DO to a certain degree, but it still was not sufficient to bring DO concentrations to 5 mg/L or higher for 90% of the time during wet weather at most locations on the CWS. Flow from the pumping stations results in substantial stress on DO since a huge amount of un-treated water with a high pollution load is discharged into the CWS in a short period of time at a certain location. The simulation results indicate that CSO treatment does not effectively improve DO during wet-weather periods on the CWS. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Water Science & Technology is the property of IWA Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.2166/wst.2007.455 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 215 Subjects: – SubjectFull: Use attainability analysis Type: general – SubjectFull: Water quality management Type: general – SubjectFull: Hydrologic models Type: general – SubjectFull: Dissolved oxygen in water Type: general – SubjectFull: Gravity Type: general – SubjectFull: Combined sewer overflows Type: general – SubjectFull: Chicago (Ill.) Type: general – SubjectFull: Illinois Type: general Titles: – TitleFull: Effectiveness of combined sewer overflow treatment for dissolved oxygen improvement in the Chicago Waterways. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Alp, E. – PersonEntity: Name: NameFull: Melching, C. S. – PersonEntity: Name: NameFull: Zhang, H. – PersonEntity: Name: NameFull: Lanyon, R. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: 2007 Type: published Y: 2007 Identifiers: – Type: issn-print Value: 02731223 Numbering: – Type: volume Value: 56 – Type: issue Value: 1 Titles: – TitleFull: Water Science & Technology Type: main |
| ResultId | 1 |
