Denitrifying Anaerobic Methane Oxidation and Anammox Process in a Membrane Aerated Membrane Bioreactor: Kinetic Evaluation and Optimization.

Peng, L; Nie, W-B; Ding, J; Ni, B-J; Liu, Y; Han, H-J; Xie, G-J

Denitrifying Anaerobic Methane Oxidation and Anammox Process in a Membrane Aerated Membrane Bioreactor: Kinetic Evaluation and Optimization.

Peng, L Nie, W-B Ding, J Ni, B-J Liu, Y

Han, H-J Xie, G-J

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Publisher:: AMER CHEMICAL SOC
Publication Type:: Journal Article
Citation:: Environmental science & technology, 2020, 54, (11), pp. 6968-6977
Issue Date:: 2020-06

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Field	Value	Language
dc.contributor.author	Peng, L
dc.contributor.author	Nie, W-B
dc.contributor.author	Ding, J
dc.contributor.author	Ni, B-J
dc.contributor.author	Liu, Y https://orcid.org/0000-0001-6677-7961
dc.contributor.author	Han, H-J
dc.contributor.author	Xie, G-J
dc.date.accessioned	2020-11-28T00:14:26Z
dc.date.available	2020-11-28T00:14:26Z
dc.date.issued	2020-06
dc.identifier.citation	Environmental science & technology, 2020, 54, (11), pp. 6968-6977
dc.identifier.issn	1520-5851
dc.identifier.issn	1520-5851
dc.identifier.uri	http://hdl.handle.net/10453/144439
dc.description.abstract	Denitrifying anaerobic methane oxidation (DAMO) coupled to anaerobic ammonium oxidation (anammox) is a promising technology for complete nitrogen removal with economic and environmental benefit. In this work, a model framework integrating DAMO and anammox process was constructed based on suspended-growth systems. The proposed model was calibrated and validated using experimental data from a sequencing batch reactor and a membrane aerated membrane bioreactor (MAMBR). The model managed to describe removal rates of ammonium (NH4+), nitrite (NO2-), and total nitrogen, as well as biomass changes of DAMO archaea, DAMO bacteria, and anaerobic ammonium oxidizing bacteria (AnAOB) in both reactors. The estimated parameter values revealed that DAMO archaea possessed properties of faster growth and higher biomass yield in suspended-growth systems compared to those in attached-growth systems (e.g., biofilm). Model simulation demonstrated that solid retention time (SRT) was effective in washing out DAMO bacteria, but retaining DAMO archaea and AnAOB in the MAMBR. The optimal SRT and nitritation efficiency (the ratio of the NO2- to the sum of NH4+ and NO2- in the MAMBR influent) were simulated so that 99% of total nitrogen was removed to meet the discharge standard. MAMBR further suggested to be operated with SRT between 15 and 30 days so that the optimal nitritation efficiency could be minimized to 49% for cost savings.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	AMER CHEMICAL SOC
dc.relation.ispartof	Environmental science & technology
dc.relation.isbasedon	10.1021/acs.est.0c01154
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject.classification	Environmental Sciences
dc.subject.mesh	Nitrogen
dc.subject.mesh	Ammonium Compounds
dc.subject.mesh	Methane
dc.subject.mesh	Bioreactors
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Oxidation-Reduction
dc.subject.mesh	Denitrification
dc.subject.mesh	Ammonium Compounds
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Bioreactors
dc.subject.mesh	Denitrification
dc.subject.mesh	Methane
dc.subject.mesh	Nitrogen
dc.subject.mesh	Oxidation-Reduction
dc.title	Denitrifying Anaerobic Methane Oxidation and Anammox Process in a Membrane Aerated Membrane Bioreactor: Kinetic Evaluation and Optimization.
dc.type	Journal Article
utslib.citation.volume	54
utslib.location.activity	United States
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
dc.date.updated	2020-11-28T00:14:22Z
pubs.issue	11
pubs.publication-status	Published
pubs.volume	54
utslib.citation.issue	11

Abstract:

Denitrifying anaerobic methane oxidation (DAMO) coupled to anaerobic ammonium oxidation (anammox) is a promising technology for complete nitrogen removal with economic and environmental benefit. In this work, a model framework integrating DAMO and anammox process was constructed based on suspended-growth systems. The proposed model was calibrated and validated using experimental data from a sequencing batch reactor and a membrane aerated membrane bioreactor (MAMBR). The model managed to describe removal rates of ammonium (NH4+), nitrite (NO2-), and total nitrogen, as well as biomass changes of DAMO archaea, DAMO bacteria, and anaerobic ammonium oxidizing bacteria (AnAOB) in both reactors. The estimated parameter values revealed that DAMO archaea possessed properties of faster growth and higher biomass yield in suspended-growth systems compared to those in attached-growth systems (e.g., biofilm). Model simulation demonstrated that solid retention time (SRT) was effective in washing out DAMO bacteria, but retaining DAMO archaea and AnAOB in the MAMBR. The optimal SRT and nitritation efficiency (the ratio of the NO2- to the sum of NH4+ and NO2- in the MAMBR influent) were simulated so that 99% of total nitrogen was removed to meet the discharge standard. MAMBR further suggested to be operated with SRT between 15 and 30 days so that the optimal nitritation efficiency could be minimized to 49% for cost savings.

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http://hdl.handle.net/10453/144439