Print Email Facebook Twitter Primary and A-sludge treatment by anaerobic membrane bioreactors in view of energy-positive wastewater treatment plants Title Primary and A-sludge treatment by anaerobic membrane bioreactors in view of energy-positive wastewater treatment plants Author Mustafa Abdelrahman, Amr (Istanbul Technical University; Universiteit Gent) Furkan Aras, Muhammed (Istanbul Technical University) Cicekalan, Busra (Istanbul Technical University) Fakioglu, Malhun (Istanbul Technical University) Cingoz, Seyma (ISKI Istanbul Water and Sewerage Administration) Basa, Safak (ISKI Istanbul Water and Sewerage Administration) Ozgun, Hale (Istanbul Technical University) Ozturk, Izzet (Istanbul Technical University) van Lier, J.B. (TU Delft Sanitary Engineering) Date 2022 Abstract Energy-rich sludge can be obtained from primary clarifiers preceding biological reactors. Alternatively, the incoming wastewater can be sent to a very-high-loaded activated sludge system, i.e., a so-called A-stage. However, the effects of applying an A-stage instead of a primary clarifier, on the subsequent sludge digestion for long-term operation is still unknown. In this study, biogas production and permeate quality, and filterability characteristics were investigated in a lab-scale anaerobic membrane bioreactor for primary sludge and A-stage sludge (A-sludge) treatment. A higher specific methane yield was obtained from digestion of A-sludge compared to primary sludge. Similarly, specific methanogenic activity was higher when the anaerobic membrane bioreactor was fed with A-sludge compared to primary sludge. Plant-wide mass balance analysis indicated that about 35% of the organic matter in wastewater was recovered as methane by including an A-stage, compared to about 20% with a primary clarifier. Subject A-stageAnaerobic membrane bioreactorEnergy recoveryNutrient recoverySludge digestion To reference this document use: http://resolver.tudelft.nl/uuid:79381a51-260e-4423-a3e0-0119f10a0fdd DOI https://doi.org/10.1016/j.biortech.2022.126965 Embargo date 2022-09-09 ISSN 0960-8524 Source Bioresource Technology, 351 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2022 Amr Mustafa Abdelrahman, Muhammed Furkan Aras, Busra Cicekalan, Malhun Fakioglu, Seyma Cingoz, Safak Basa, Hale Ozgun, Izzet Ozturk, J.B. van Lier Files PDF 1_s2.0_S0960852422002942_ ... averne.pdf 2.32 MB Close viewer /islandora/object/uuid:79381a51-260e-4423-a3e0-0119f10a0fdd/datastream/OBJ/view