relation: https://khub.utp.edu.my/scholars/14946/
title: Novel sequential flow baffled microalgal-bacterial photobioreactor for enhancing nitrogen assimilation into microalgal biomass whilst bioremediating nutrient-rich wastewater simultaneously
creator: Leong, W.H.
creator: Lim, J.W.
creator: Lam, M.K.
creator: Lam, S.M.
creator: Sin, J.C.
creator: Samson, A.
description: A novel sequential flow baffled microalgal-bacterial (SFB-AlgalBac) photobioreactor was designed to cater for the synergistic interactions between microalgal and bacterial consortia to enhance nitrogen assimilation into microalgal biomass from nutrient-rich wastewater medium. The performance of the SFB-AlgalBac photobioreactor was found to be optimum at the influent flow rate of 5.0 L/d, equivalent to 20 days of hydraulic retention time (HRT). The highest microalgal nitrogen assimilation rate (0.0271 /d) and biomass productivity (1350 mg/d) were recorded amidst this flow rate. Further increase to the 10.0 L/d flow rate reduced the photobioreactor performance, as evidenced by a reduction in microalgal biomass productivity (>10). The microalgal biomass per unit of nitrogen assimilated values were attained at 16.69 mg/mg for the 5.0 L/d flow rate as opposed to 7.73 mg/mg for the 10.0 L/d flow rate, despite both having comparable specific growth rates. Also, the prior influent treatment by activated sludge was found to exude extracellular polymeric substances which significantly improved the microalgal biomass settleability up to 37. The employment of SFB-AlgalBac photobioreactor is anticipated could exploit the low-cost nitrogen sources from nutrient-rich wastewaters via bioconversion into valuable microalgal biomass while fulfilling the requirements of sustainable wastewater treatment technologies. © 2020 Elsevier B.V.
publisher: Elsevier B.V.
date: 2021
type: Article
type: PeerReviewed
identifier:   Leong, W.H. and Lim, J.W. and Lam, M.K. and Lam, S.M. and Sin, J.C. and Samson, A.  (2021) Novel sequential flow baffled microalgal-bacterial photobioreactor for enhancing nitrogen assimilation into microalgal biomass whilst bioremediating nutrient-rich wastewater simultaneously.  Journal of Hazardous Materials, 409.   ISSN 03043894     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85095850402&doi=10.1016%2fj.jhazmat.2020.124455&partnerID=40&md5=6f0f6709081539a37bc74a21da298506
relation: 10.1016/j.jhazmat.2020.124455
identifier: 10.1016/j.jhazmat.2020.124455