Evaluating the effect of different draw solutes in a baffled osmotic membrane bioreactor-microfiltration using optical coherence tomography with real wastewate

Pathak, Nirenkumar; Fortunato, Luca; Li, Sheng; Chekli, Laura; Phuntsho, Sherub; Ghaffour, NorEddine; Leiknes, TorOve; Shon, Ho Kyong

dc.contributor.author	Pathak, Nirenkumar
dc.contributor.author	Fortunato, Luca
dc.contributor.author	Li, Sheng
dc.contributor.author	Chekli, Laura
dc.contributor.author	Phuntsho, Sherub
dc.contributor.author	Ghaffour, NorEddine
dc.contributor.author	Leiknes, TorOve
dc.contributor.author	Shon, Ho Kyong
dc.date.accessioned	2018-05-07T07:36:25Z
dc.date.available	2018-05-07T07:36:25Z
dc.date.issued	2018-05-03
dc.identifier.citation	Pathak N, Fortunato L, Li S, Chekli L, Phuntsho S, et al. (2018) Evaluating the effect of different draw solutes in a baffled osmotic membrane bioreactor-microfiltration using optical coherence tomography with real wastewate. Bioresource Technology. Available: http://dx.doi.org/10.1016/j.biortech.2018.04.123.
dc.identifier.issn	0960-8524
dc.identifier.pmid	29753932
dc.identifier.doi	10.1016/j.biortech.2018.04.123
dc.identifier.uri	http://hdl.handle.net/10754/627763
dc.description.abstract	This study investigated the performance of an integrated osmotic and microfiltration membrane bioreactor for real sewage employing baffles in the reactor. To study the biofouling development on forward osmosis membranes optical coherence tomography (OCT) technique was employed. On-line monitoring of biofilm growth on a flat sheet cellulose triacetate forward osmosis (CTA-FO) membrane was conducted for 21 days. Further, the process performance was evaluated in terms of water flux, organic and nutrient removal, microbial activity in terms of soluble microbial products (SMP) and extracellular polymeric substance (EPS), and floc size. The measured biofouling layer thickness was in the order sodium chloride (NaCl) > ammonium sulfate (SOA) > potassium dihydrogen phosphate (KH2PO4). Very high organic removal (96.9±0.8 %) and reasonably good nutrient removal efficiency (85.2±1.6 % TN) was achieved. The sludge characteristics and biofouling layer thickness suggest that less EPS and higher floc size were the governing factors for less fouling.
dc.description.sponsorship	The research reported in this publication was supported by funding from the SEED program of King Abdullah University of Science and Technology (KAUST), Saudi Arabia. This project is also supported by the Australian Research Council (ARC) through the ARC Research Hub for Energy-efficient Separation (IH170100009). The help, assistance and support of the Water Desalination and Reuse Center (WDRC) staff is greatly appreciated. PhD candidate Nirenkumar Pathak would like to acknowledge scholarship support from commonwealth of Australia under Research Training Program (RTP).
dc.publisher	Elsevier BV
dc.relation.url	http://www.sciencedirect.com/science/article/pii/S0960852418306473
dc.rights	NOTICE: this is the author’s version of a work that was accepted for publication in Bioresource Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Bioresource Technology, [, , (2018-05-02)] DOI: 10.1016/j.biortech.2018.04.123 . © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject	OMBR
dc.subject	Optical coherence tomography (OCT)
dc.subject	Microfiltration (MF)
dc.subject	Biofouling
dc.subject	Salinity build-up
dc.title	Evaluating the effect of different draw solutes in a baffled osmotic membrane bioreactor-microfiltration using optical coherence tomography with real wastewate
dc.type	Article
dc.contributor.department	Biological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.department	Environmental Science and Engineering Program
dc.contributor.department	Water Desalination and Reuse Research Center (WDRC)
dc.identifier.journal	Bioresource Technology
dc.eprint.version	Post-print
dc.contributor.institution	Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Post Box 129, Broadway, NSW 2007, Australia
kaust.person	Fortunato, Luca
kaust.person	Li, Sheng
kaust.person	Ghaffour, Noreddine
kaust.person	Leiknes, TorOve
refterms.dateFOA	2020-05-02T00:00:00Z
dc.date.published-online	2018-05-03
dc.date.published-print	2018-09