Primary and A-sludge treatment by anaerobic membrane bioreactors in view of energy-positive wastewater treatment plants

Amr Mustafa Abdelrahman; Muhammed Furkan Aras; Busra Cicekalan; Malhun Fakioglu; Seyma Cingoz; Safak Basa; Hale Ozgun; Izzet Ozturk; Jules B. van Lier

doi:10.1016/j.biortech.2022.126965

Primary and A-sludge treatment by anaerobic membrane bioreactors in view of energy-positive wastewater treatment plants

Amr Mustafa Abdelrahman^*, Muhammed Furkan Aras, Busra Cicekalan, Malhun Fakioglu, Seyma Cingoz, Safak Basa, Hale Ozgun, Izzet Ozturk, Jules B. van Lier

^*Corresponding author for this work

Sanitary Engineering

Research output: Contribution to journal › Article › Scientific › peer-review

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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.

Original language	English
Article number	126965
Number of pages	9
Journal	Bioresource Technology
Volume	351
DOIs	https://doi.org/10.1016/j.biortech.2022.126965
Publication status	Published - 2022

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.

Keywords

A-stage
Anaerobic membrane bioreactor
Energy recovery
Nutrient recovery
Sludge digestion

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2022.126965

1-s2.0-S0960852422002942-maintaverneFinal published version, 2.17 MB

Cite this

@article{79381a51260e4423a3e00119f10a0fdd,

title = "Primary and A-sludge treatment by anaerobic membrane bioreactors in view of energy-positive wastewater treatment plants",

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.",

keywords = "A-stage, Anaerobic membrane bioreactor, Energy recovery, Nutrient recovery, Sludge digestion",

author = "{Mustafa Abdelrahman}, Amr and {Furkan Aras}, Muhammed and Busra Cicekalan and Malhun Fakioglu and Seyma Cingoz and Safak Basa and Hale Ozgun and Izzet Ozturk and {van Lier}, {Jules B.}",

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – 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.",

year = "2022",

doi = "10.1016/j.biortech.2022.126965",

language = "English",

volume = "351",

journal = "Bioresource Technology",

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T1 - Primary and A-sludge treatment by anaerobic membrane bioreactors in view of energy-positive wastewater treatment plants

AU - Mustafa Abdelrahman, Amr

AU - Furkan Aras, Muhammed

AU - Cicekalan, Busra

AU - Fakioglu, Malhun

AU - Cingoz, Seyma

AU - Basa, Safak

AU - Ozgun, Hale

AU - Ozturk, Izzet

AU - van Lier, Jules B.

N1 - 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.

PY - 2022

Y1 - 2022

N2 - 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.

AB - 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.

KW - A-stage

KW - Anaerobic membrane bioreactor

KW - Energy recovery

KW - Nutrient recovery

KW - Sludge digestion

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SN - 0960-8524

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JO - Bioresource Technology

JF - Bioresource Technology

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ER -

Primary and A-sludge treatment by anaerobic membrane bioreactors in view of energy-positive wastewater treatment plants

Abstract

Bibliographical note

Keywords

UN SDGs

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