Circular economy-driven ammonium recovery from municipal wastewater: state of the art, challenges and solutions forward

In current biological nitrogen removal (BNR) processes, most of ammonium in municipal wastewater is biologically transformed to nitrogen gas, making ammonium recovery impossible. Thus, this article aims to provide a holistic review with in-depth discussions on (i) current BNR processes for municipal...

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Main Authors: Zhang, Xiaoyuan, Liu, Yu
Other Authors: School of Civil and Environmental Engineering
Format: Journal Article
Language:English
Published: 2022
Subjects:
Online Access:https://hdl.handle.net/10356/162378
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author Zhang, Xiaoyuan
Liu, Yu
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Zhang, Xiaoyuan
Liu, Yu
author_sort Zhang, Xiaoyuan
collection NTU
description In current biological nitrogen removal (BNR) processes, most of ammonium in municipal wastewater is biologically transformed to nitrogen gas, making ammonium recovery impossible. Thus, this article aims to provide a holistic review with in-depth discussions on (i) current BNR processes for municipal wastewater treatment, (ii) environmental and economic costs behind ammonium in municipal wastewater, (iii) state of the art of ammonium recovery from municipal wastewater including anaerobic membrane bioreactor turning municipal wastewater to a liquid fertilizer, capturing ammonium in phototrophic biomass, waste activated sludge for land application, bioelectrochemical systems, biological conversion of ammonium to nitrous oxide as a fuel oxidizer, and adsorption, (iv) feasibility and challenge of adsorption for ammonium recovery from municipal wastewater and (v) innovative municipal wastewater reclamation processes coupled with ammonium recovery. Moving forward, municipal wastewater reclamation and resource recovery should be addressed under the framework of circular economy.
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spelling ntu-10356/1623782022-10-17T05:42:47Z Circular economy-driven ammonium recovery from municipal wastewater: state of the art, challenges and solutions forward Zhang, Xiaoyuan Liu, Yu School of Civil and Environmental Engineering Advanced Environmental Biotechnology Centre (AEBC) Nanyang Environment and Water Research Institute Engineering::Environmental engineering Biological Nitrogen Removal Municipal Wastewater Reclamation In current biological nitrogen removal (BNR) processes, most of ammonium in municipal wastewater is biologically transformed to nitrogen gas, making ammonium recovery impossible. Thus, this article aims to provide a holistic review with in-depth discussions on (i) current BNR processes for municipal wastewater treatment, (ii) environmental and economic costs behind ammonium in municipal wastewater, (iii) state of the art of ammonium recovery from municipal wastewater including anaerobic membrane bioreactor turning municipal wastewater to a liquid fertilizer, capturing ammonium in phototrophic biomass, waste activated sludge for land application, bioelectrochemical systems, biological conversion of ammonium to nitrous oxide as a fuel oxidizer, and adsorption, (iv) feasibility and challenge of adsorption for ammonium recovery from municipal wastewater and (v) innovative municipal wastewater reclamation processes coupled with ammonium recovery. Moving forward, municipal wastewater reclamation and resource recovery should be addressed under the framework of circular economy. 2022-10-17T05:31:01Z 2022-10-17T05:31:01Z 2021 Journal Article Zhang, X. & Liu, Y. (2021). Circular economy-driven ammonium recovery from municipal wastewater: state of the art, challenges and solutions forward. Bioresource Technology, 334, 125231-. https://dx.doi.org/10.1016/j.biortech.2021.125231 0960-8524 https://hdl.handle.net/10356/162378 10.1016/j.biortech.2021.125231 33962161 2-s2.0-85105278007 334 125231 en Bioresource Technology © 2021 Elsevier Ltd. All rights reserved.
spellingShingle Engineering::Environmental engineering
Biological Nitrogen Removal
Municipal Wastewater Reclamation
Zhang, Xiaoyuan
Liu, Yu
Circular economy-driven ammonium recovery from municipal wastewater: state of the art, challenges and solutions forward
title Circular economy-driven ammonium recovery from municipal wastewater: state of the art, challenges and solutions forward
title_full Circular economy-driven ammonium recovery from municipal wastewater: state of the art, challenges and solutions forward
title_fullStr Circular economy-driven ammonium recovery from municipal wastewater: state of the art, challenges and solutions forward
title_full_unstemmed Circular economy-driven ammonium recovery from municipal wastewater: state of the art, challenges and solutions forward
title_short Circular economy-driven ammonium recovery from municipal wastewater: state of the art, challenges and solutions forward
title_sort circular economy driven ammonium recovery from municipal wastewater state of the art challenges and solutions forward
topic Engineering::Environmental engineering
Biological Nitrogen Removal
Municipal Wastewater Reclamation
url https://hdl.handle.net/10356/162378
work_keys_str_mv AT zhangxiaoyuan circulareconomydrivenammoniumrecoveryfrommunicipalwastewaterstateoftheartchallengesandsolutionsforward
AT liuyu circulareconomydrivenammoniumrecoveryfrommunicipalwastewaterstateoftheartchallengesandsolutionsforward