Impact of External and Internal Factors on the Behavior of Extended Aeration Activated Sludge Process

The Behavior of an extended aeration activated sludge process was studied. Factors that might affect the performance of such process were also investigated. Three basins, each consisted of two parts one for aeration and the other for sedimentation were employed. Required tests and results analysis w...

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Main Authors: Waleed M. Sheet, Bassam M. Salman
Format: Article
Language:English
Published: Tikrit University 2009-09-01
Series:Tikrit Journal of Engineering Sciences
Online Access:https://tj-es.com/ojs/index.php/tjes/article/view/612
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author Waleed M. Sheet
Bassam M. Salman
author_facet Waleed M. Sheet
Bassam M. Salman
author_sort Waleed M. Sheet
collection DOAJ
description The Behavior of an extended aeration activated sludge process was studied. Factors that might affect the performance of such process were also investigated. Three basins, each consisted of two parts one for aeration and the other for sedimentation were employed. Required tests and results analysis were made. It was found that removal efficiency of dissolved organic matter was limited to F/M ratio. The study revealed that such treatment was capable of treating variable characteristics wastes. The supernatant leaving secondary sedimentation was found to attain constant characteristics irrespective of variable influent. The results show that the maximum overall COD removal efficiency occur at hydraulic detention time equal to 23 h, 80% of SVI value was less than 125 ml/gm and the minimum SVI occur at F/M equal to 0.387 day-1 while the effluent SS increase with SVI decrease.
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spelling doaj.art-0307acc44b7049b3899a6c220491ec852023-07-12T12:55:48ZengTikrit UniversityTikrit Journal of Engineering Sciences1813-162X2312-75892009-09-0116310.25130/tjes.16.3.07Impact of External and Internal Factors on the Behavior of Extended Aeration Activated Sludge ProcessWaleed M. Sheet0Bassam M. Salman1Environmental. Eng. Dept., Tikrit University, IraqThe Ministry of Construction and Housing, IraqThe Behavior of an extended aeration activated sludge process was studied. Factors that might affect the performance of such process were also investigated. Three basins, each consisted of two parts one for aeration and the other for sedimentation were employed. Required tests and results analysis were made. It was found that removal efficiency of dissolved organic matter was limited to F/M ratio. The study revealed that such treatment was capable of treating variable characteristics wastes. The supernatant leaving secondary sedimentation was found to attain constant characteristics irrespective of variable influent. The results show that the maximum overall COD removal efficiency occur at hydraulic detention time equal to 23 h, 80% of SVI value was less than 125 ml/gm and the minimum SVI occur at F/M equal to 0.387 day-1 while the effluent SS increase with SVI decrease. https://tj-es.com/ojs/index.php/tjes/article/view/612
spellingShingle Waleed M. Sheet
Bassam M. Salman
Impact of External and Internal Factors on the Behavior of Extended Aeration Activated Sludge Process
Tikrit Journal of Engineering Sciences
title Impact of External and Internal Factors on the Behavior of Extended Aeration Activated Sludge Process
title_full Impact of External and Internal Factors on the Behavior of Extended Aeration Activated Sludge Process
title_fullStr Impact of External and Internal Factors on the Behavior of Extended Aeration Activated Sludge Process
title_full_unstemmed Impact of External and Internal Factors on the Behavior of Extended Aeration Activated Sludge Process
title_short Impact of External and Internal Factors on the Behavior of Extended Aeration Activated Sludge Process
title_sort impact of external and internal factors on the behavior of extended aeration activated sludge process
url https://tj-es.com/ojs/index.php/tjes/article/view/612
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