Optimization of hydraulic retention time and organic loading rate for volatile fatty acid production from low strength wastewater in an anaerobic membrane bioreactor

Khan, MA; Ngo, HH; Guo, W; Liu, Y; Nghiem, LD; Chang, SW; Nguyen, DD; Zhang, S; Luo, G; Jia, H

Optimization of hydraulic retention time and organic loading rate for volatile fatty acid production from low strength wastewater in an anaerobic membrane bioreactor

Khan, MA Ngo, HH

Guo, W

Liu, Y

Nghiem, LD

Chang, SW Nguyen, DD Zhang, S Luo, G Jia, H

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2019, 271 pp. 100 - 108
Issue Date:: 2019-01-01

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Field	Value	Language
dc.contributor.author	Khan, MA	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Liu, Y https://orcid.org/0000-0001-6677-7961	en_US
dc.contributor.author	Nghiem, LD https://orcid.org/0000-0002-9039-5792	en_US
dc.contributor.author	Chang, SW	en_US
dc.contributor.author	Nguyen, DD	en_US
dc.contributor.author	Zhang, S	en_US
dc.contributor.author	Luo, G	en_US
dc.contributor.author	Jia, H	en_US
dc.date.available	2021-02-01T18:02:57Z
dc.date.issued	2019-01-01	en_US
dc.identifier.citation	Bioresource Technology, 2019, 271 pp. 100 - 108	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/132562
dc.description.abstract	© 2018 Elsevier Ltd This study aims to investigate the production of volatile fatty acids (VFAs) from low strength wastewater at various hydraulic retention time (HRT) and organic loading rate (OLR) in a continuous anaerobic membrane bioreactor (AnMBR) using glucose as carbon source. This experiment was performed without any selective inhibition of methanogens and the reactor pH was maintained at 7.0 ± 0.1. 48, 24, 18, 12, 8 and 6 h-HRTs were applied and the highest VFA concentration was recorded at 8 h with an overall VFA yield of 48.20 ± 1.21 mg VFA/100 mg COD feed . Three different ORLs were applied (350, 550 and 715 mg COD feed ) at the optimum 8 h-HRT. The acetic and propanoic acid concentration maximums were (1.1845 ± 0.0165 and 0.5160 ± 0.0141 mili-mole/l respectively) at 550 mg COD feed . The isobutyric acid concentration was highest (0.3580 ± 0.0407 mili-mole/l) at 715 mg COD feed indicating butyric-type fermentation at higher organic loading rate.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2018.09.075	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Euryarchaeota	en_US
dc.subject.mesh	Fatty Acids, Volatile	en_US
dc.subject.mesh	Bioreactors	en_US
dc.subject.mesh	Anaerobiosis	en_US
dc.subject.mesh	Hydrogen-Ion Concentration	en_US
dc.subject.mesh	Waste Water	en_US
dc.title	Optimization of hydraulic retention time and organic loading rate for volatile fatty acid production from low strength wastewater in an anaerobic membrane bioreactor	en_US
dc.type	Journal Article
utslib.citation.volume	271	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
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/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access	*
pubs.publication-status	Published	en_US
pubs.volume	271	en_US

Abstract:

© 2018 Elsevier Ltd This study aims to investigate the production of volatile fatty acids (VFAs) from low strength wastewater at various hydraulic retention time (HRT) and organic loading rate (OLR) in a continuous anaerobic membrane bioreactor (AnMBR) using glucose as carbon source. This experiment was performed without any selective inhibition of methanogens and the reactor pH was maintained at 7.0 ± 0.1. 48, 24, 18, 12, 8 and 6 h-HRTs were applied and the highest VFA concentration was recorded at 8 h with an overall VFA yield of 48.20 ± 1.21 mg VFA/100 mg COD feed . Three different ORLs were applied (350, 550 and 715 mg COD feed ) at the optimum 8 h-HRT. The acetic and propanoic acid concentration maximums were (1.1845 ± 0.0165 and 0.5160 ± 0.0141 mili-mole/l respectively) at 550 mg COD feed . The isobutyric acid concentration was highest (0.3580 ± 0.0407 mili-mole/l) at 715 mg COD feed indicating butyric-type fermentation at higher organic loading rate.

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http://hdl.handle.net/10453/132562