Nutrient recovery and microalgae biomass production from urine by membrane photobioreactor at low biomass retention times

Nguyen, TT; Bui, XT; Ngo, HH; Nguyen, TTD; Nguyen, KQ; Nguyen, HH; Huynh, KPH; Némery, J; Fujioka, T; Duong, CH; Dang, BT; Varjani, S

Nutrient recovery and microalgae biomass production from urine by membrane photobioreactor at low biomass retention times

Nguyen, TT Bui, XT Ngo, HH Nguyen, TTD Nguyen, KQ Nguyen, HH Huynh, KPH Némery, J Fujioka, T Duong, CH Dang, BT Varjani, S

Permalink

Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Science of the Total Environment, 2021, 785, pp. 147423-147423
Issue Date:: 2021-09-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

The embargo period expires on 30 Sep 2023

Adobe PDF

Download Accepted versionAdobe PDF (1.47 MB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Nguyen, TT
dc.contributor.author	Bui, XT
dc.contributor.author	Ngo, HH
dc.contributor.author	Nguyen, TTD
dc.contributor.author	Nguyen, KQ
dc.contributor.author	Nguyen, HH
dc.contributor.author	Huynh, KPH
dc.contributor.author	Némery, J
dc.contributor.author	Fujioka, T
dc.contributor.author	Duong, CH
dc.contributor.author	Dang, BT
dc.contributor.author	Varjani, S
dc.date.accessioned	2021-12-07T05:08:31Z
dc.date.available	2021-12-07T05:08:31Z
dc.date.issued	2021-09-01
dc.identifier.citation	Science of the Total Environment, 2021, 785, pp. 147423-147423
dc.identifier.issn	0048-9697
dc.identifier.issn	1879-1026
dc.identifier.uri	http://hdl.handle.net/10453/152179
dc.description.abstract	Urine has been considered as an ideal nutrient source for microalgae cultivation thanks to its composition containing the high concentrations of nitrogen and phosphorus. Herein, the microalgae growth in urine was evaluated in a lab-scale membrane photobioreactor (MPBR) system. This work aimed to validate the influence of low biomass retention times (BRT) (10, 7, 5, 3, 2 d) on nutrient remediation and biomass productivity. It revealed that BRT of 7 d resulted in synergistically high biomass production (biomass productivity of 313 mg/L.d) and removal rates (TN of 90.5 mg/L.d and TP of 4.7 mg/L.d). Notably, the short BRT of 2–5 d was not sufficient to trigger actively growing microalgae and thus reduced biomass production rate. In addition, as operated at a low flux of 2 L/m2.h, MPBR system required no physical cleaning for 100 days of operation. The BRT-dependent biomass concentration played a pivotal role in changing the fouling rate of MPBR; however, the fouling is reversible in the MPBR system under the low flux condition.
dc.language	en
dc.publisher	Elsevier BV
dc.relation.ispartof	Science of the Total Environment
dc.relation.isbasedon	10.1016/j.scitotenv.2021.147423
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Environmental Sciences
dc.title	Nutrient recovery and microalgae biomass production from urine by membrane photobioreactor at low biomass retention times
dc.type	Journal Article
utslib.citation.volume	785
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	*
utslib.copyright.embargo	2023-09-30T00:00:00+1000Z
dc.date.updated	2021-12-07T05:08:29Z
pubs.publication-status	Published
pubs.volume	785

Abstract:

Urine has been considered as an ideal nutrient source for microalgae cultivation thanks to its composition containing the high concentrations of nitrogen and phosphorus. Herein, the microalgae growth in urine was evaluated in a lab-scale membrane photobioreactor (MPBR) system. This work aimed to validate the influence of low biomass retention times (BRT) (10, 7, 5, 3, 2 d) on nutrient remediation and biomass productivity. It revealed that BRT of 7 d resulted in synergistically high biomass production (biomass productivity of 313 mg/L.d) and removal rates (TN of 90.5 mg/L.d and TP of 4.7 mg/L.d). Notably, the short BRT of 2–5 d was not sufficient to trigger actively growing microalgae and thus reduced biomass production rate. In addition, as operated at a low flux of 2 L/m2.h, MPBR system required no physical cleaning for 100 days of operation. The BRT-dependent biomass concentration played a pivotal role in changing the fouling rate of MPBR; however, the fouling is reversible in the MPBR system under the low flux condition.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/152179