Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/136910
Title: In tandem effects of activated carbon and quorum quenching on fouling control and simultaneous removal of pharmaceutical compounds in membrane bioreactors
Authors: Xiao Yeyuan
Waheed Hira
Xiao Keke
Hashmi Imran
Zhou Yan
Keywords: Engineering::Civil engineering
Issue Date: 2018
Source: Xiao, Y., Waheed, H., Xiao, K., Hashmi, I., & Zhou, Y. (2018). In tandem effects of activated carbon and quorum quenching on fouling control and simultaneous removal of pharmaceutical compounds in membrane bioreactors. Chemical Engineering Journal, 341, 610-617. doi:10.1016/j.cej.2018.02.073
Journal: Chemical Engineering Journal
Abstract: This study aimed to integrate the quorum quenching (QQ) strategy with powdered activated carbon (PAC) adsorption for fouling control and simultaneous removal of trace amounts of selected pharmaceutically active compounds (PhACs) in laboratory membrane bioreactors (MBRs). With the addition of QQ strains immobilized in PAC-alginate beads, a 4.6-folds delay in fouling was achieved. The QQ strains not only altered the sludge properties, but also influenced the microbial communities in the MBRs, thus leading to distinct quorum sensing signal molecule (acyl-homoserine lactones, AHLs) profiles. Despite the difference in AHL profiles, the total AHL concentrations were greatly reduced in bulk sludge, and completely quenched in biocake with QQ supplementation. PAC addition enabled high removals of all PhACs, and also resulted in a prominent increase in sludge floc size, which further enhanced sludge filterability. These QQ-entrapped PAC-alginate beads provide a novel MBR setting with less biofouling and high removal efficiency of PhACs.
URI: https://hdl.handle.net/10356/136910
ISSN: 1385-8947
DOI: 10.1016/j.cej.2018.02.073
Rights: © 2018 Elsevier B.V. All rights reserved. This paper was published in Chemical Engineering Journal and is made available with permission of Elsevier B.V.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:NEWRI Journal Articles

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