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A Novel Sustainable Nature-Based Approach for Enhanced Removal of Solids and Organics in Activated Sludge Treatment

This study explores the performance enhancement of conventional plug flow activated sludge (AS) systems through direct integration of Water Hyacinth (Eichhornia crassipes) within the aeration tank, under Egyptian municipal wastewater treatment conditions. A pilot-scale system was constructed in the...

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Main Author: Efram, George Ashraf LAmei
Format: Thesis
Published: AUC Knowledge Fountain 2026
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access_status_str Open Access
author Efram, George Ashraf LAmei
author_browse Efram, George Ashraf LAmei
author_facet Efram, George Ashraf LAmei
author_sort Efram, George Ashraf LAmei
collection Thesis
description This study explores the performance enhancement of conventional plug flow activated sludge (AS) systems through direct integration of Water Hyacinth (Eichhornia crassipes) within the aeration tank, under Egyptian municipal wastewater treatment conditions. A pilot-scale system was constructed in the Madinaty Wastewater Treatment Plant, comprising control (AS only) and experimental (AS with plant integration) lines. Across six replicated experimental runs and two validation campaigns, the system was evaluated for key treatment parameters including COD, BOD₅, TSS, DO, MLSS, and MLVSS, alongside kinetic and oxygen transfer analyses. Results revealed significant improvements in oxygenation and improved TSS removal efficiency. Although COD and BOD5 concentrations remained above regulatory thresholds, the experimental configuration consistently outperformed the control in effluent quality. The integration of plants led to a more favorable F/M ratio and a higher SRT, suggesting enhanced biological stability. These findings position plant-integrated aeration as a viable retrofit strategy to improve energy efficiency, and effluent quality in existing AS facilities—particularly in energy-constrained, climate-sensitive contexts like Egypt.
format Thesis
id oai:fount.aucegypt.edu:etds-3670
institution American University in Cairo (Egypt)
last_indexed 2026-06-10T12:35:59.828Z
license_str Not specified — see source repository
provenance_str_mv Harvested via OAI-PMH from AUC Knowledge Fountain — bepress
publishDate 2026
publishDateRange 2026
publishDateSort 2026
publisher AUC Knowledge Fountain
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source_str AUC Knowledge Fountain — bepress
spelling oai:fount.aucegypt.edu:etds-3670 A Novel Sustainable Nature-Based Approach for Enhanced Removal of Solids and Organics in Activated Sludge Treatment Efram, George Ashraf LAmei This study explores the performance enhancement of conventional plug flow activated sludge (AS) systems through direct integration of Water Hyacinth (Eichhornia crassipes) within the aeration tank, under Egyptian municipal wastewater treatment conditions. A pilot-scale system was constructed in the Madinaty Wastewater Treatment Plant, comprising control (AS only) and experimental (AS with plant integration) lines. Across six replicated experimental runs and two validation campaigns, the system was evaluated for key treatment parameters including COD, BOD₅, TSS, DO, MLSS, and MLVSS, alongside kinetic and oxygen transfer analyses. Results revealed significant improvements in oxygenation and improved TSS removal efficiency. Although COD and BOD5 concentrations remained above regulatory thresholds, the experimental configuration consistently outperformed the control in effluent quality. The integration of plants led to a more favorable F/M ratio and a higher SRT, suggesting enhanced biological stability. These findings position plant-integrated aeration as a viable retrofit strategy to improve energy efficiency, and effluent quality in existing AS facilities—particularly in energy-constrained, climate-sensitive contexts like Egypt. 2026-01-05T08:00:00Z thesis application/pdf https://fount.aucegypt.edu/etds/2614 https://fount.aucegypt.edu/context/etds/article/3670/viewcontent/GE___Thesis___After_Comments.pdf Theses and Dissertations AUC Knowledge Fountain Wastewater Treatment Activated Sludge Aquatic Plants Environmental Engineering
spellingShingle Wastewater Treatment
Activated Sludge
Aquatic Plants
Environmental Engineering
Efram, George Ashraf LAmei
A Novel Sustainable Nature-Based Approach for Enhanced Removal of Solids and Organics in Activated Sludge Treatment
title A Novel Sustainable Nature-Based Approach for Enhanced Removal of Solids and Organics in Activated Sludge Treatment
title_full A Novel Sustainable Nature-Based Approach for Enhanced Removal of Solids and Organics in Activated Sludge Treatment
title_fullStr A Novel Sustainable Nature-Based Approach for Enhanced Removal of Solids and Organics in Activated Sludge Treatment
title_full_unstemmed A Novel Sustainable Nature-Based Approach for Enhanced Removal of Solids and Organics in Activated Sludge Treatment
title_short A Novel Sustainable Nature-Based Approach for Enhanced Removal of Solids and Organics in Activated Sludge Treatment
title_sort novel sustainable nature based approach for enhanced removal of solids and organics in activated sludge treatment
topic Wastewater Treatment
Activated Sludge
Aquatic Plants
Environmental Engineering
url https://fount.aucegypt.edu/etds/2614
https://fount.aucegypt.edu/context/etds/article/3670/viewcontent/GE___Thesis___After_Comments.pdf
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