Microbial community analysis of fouled reverse osmosis membranes used in water recycling

Handle URI:
http://hdl.handle.net/10754/562792
Title:
Microbial community analysis of fouled reverse osmosis membranes used in water recycling
Authors:
Ayache, C.; Manes, Carmem Lara De O; Pidou, Marc; Croue, Jean-Philippe; Gernjak, Wolfgang
Abstract:
Biofouling on RO membranes has major cost implications in water reclamation. In this study membranes and water samples were collected from a RO pilot-plant operated on two sites to study the differences in microbial communities in order to develop a better understanding of the biofouling. For the two sites studied, the examination of the front membrane of the first stage and the tail membrane of the second stage of the RO train using 16S rRNA gene-based molecular technique showed that bacteria were similar on both stages and no significant effect of the membrane location within the RO train on the biofilm development could be discerned. However, the comparison of the identified bacteria from membrane samples between the two sites showed that each site is specific, leading to a different composition of microbial communities. The different nutrient concentrations in the RO feed water due to the different biological pre-treatments are one potential explanation for the observed differences in the microbial communities. Seasonal variations also play a major role in the development of microbial communities as shown by the significant differences observed between the communities measured in the samples in winter and summer on the second site. The results did not show similarity between the species identified on the RO membranes and in the feed water. Hence, the relationship of microbial community between the water generated during the pre-treatment process and RO membranes is not obvious. From this study, results showed that there is an actual need to investigate the development of microbial communities on membrane surface in real conditions in order to suggest tailored solutions for biofouling control and removal. © 2013 Elsevier Ltd.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division
Publisher:
Elsevier BV
Journal:
Water Research
Issue Date:
Jun-2013
DOI:
10.1016/j.watres.2013.03.006
PubMed ID:
23622816
Type:
Article
ISSN:
00431354
Sponsors:
The authors want to acknowledge Veolia Environnement Research & Innovation and Seqwater for funding received through the joint "Water Recycling Research Program" with The University of Queensland as well as the Australian Government Department of Industry, Innovation, Science, Research and Tertiary Education for funding obtained through the FAST program (FR10025). The authors also would like to acknowledge Unitywater and Allconnex Water for their support by hosting the pilot-trials.
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorAyache, C.en
dc.contributor.authorManes, Carmem Lara De Oen
dc.contributor.authorPidou, Marcen
dc.contributor.authorCroue, Jean-Philippeen
dc.contributor.authorGernjak, Wolfgangen
dc.date.accessioned2015-08-03T11:05:56Zen
dc.date.available2015-08-03T11:05:56Zen
dc.date.issued2013-06en
dc.identifier.issn00431354en
dc.identifier.pmid23622816en
dc.identifier.doi10.1016/j.watres.2013.03.006en
dc.identifier.urihttp://hdl.handle.net/10754/562792en
dc.description.abstractBiofouling on RO membranes has major cost implications in water reclamation. In this study membranes and water samples were collected from a RO pilot-plant operated on two sites to study the differences in microbial communities in order to develop a better understanding of the biofouling. For the two sites studied, the examination of the front membrane of the first stage and the tail membrane of the second stage of the RO train using 16S rRNA gene-based molecular technique showed that bacteria were similar on both stages and no significant effect of the membrane location within the RO train on the biofilm development could be discerned. However, the comparison of the identified bacteria from membrane samples between the two sites showed that each site is specific, leading to a different composition of microbial communities. The different nutrient concentrations in the RO feed water due to the different biological pre-treatments are one potential explanation for the observed differences in the microbial communities. Seasonal variations also play a major role in the development of microbial communities as shown by the significant differences observed between the communities measured in the samples in winter and summer on the second site. The results did not show similarity between the species identified on the RO membranes and in the feed water. Hence, the relationship of microbial community between the water generated during the pre-treatment process and RO membranes is not obvious. From this study, results showed that there is an actual need to investigate the development of microbial communities on membrane surface in real conditions in order to suggest tailored solutions for biofouling control and removal. © 2013 Elsevier Ltd.en
dc.description.sponsorshipThe authors want to acknowledge Veolia Environnement Research & Innovation and Seqwater for funding received through the joint "Water Recycling Research Program" with The University of Queensland as well as the Australian Government Department of Industry, Innovation, Science, Research and Tertiary Education for funding obtained through the FAST program (FR10025). The authors also would like to acknowledge Unitywater and Allconnex Water for their support by hosting the pilot-trials.en
dc.publisherElsevier BVen
dc.subject16S rDNA sequencingen
dc.subjectMembrane foulingen
dc.subjectMicrobial communityen
dc.subjectReverse osmosisen
dc.subjectWater reclamationen
dc.titleMicrobial community analysis of fouled reverse osmosis membranes used in water recyclingen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalWater Researchen
dc.contributor.institutionAdvanced Water Management Centre, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australiaen
dc.contributor.institutionVeolia Environnement Recherche et Innovation, Chemin de la Digue, 78603 Maisons Laffitte, Franceen
dc.contributor.institutionIC2MP - UMR 7285 CNRS, Université de Poitiers - ENSIP, 1 rue Marcel Doré, 86 022 Poitiers, Franceen
dc.contributor.institutionUPMC Univ Paris 06, UMR 7621, LOMIC, Observatoire Océanologique, F-66651 Banyuls/mer, Franceen
dc.contributor.institutionVale technological Institute (ITV), Rua Boaventura da Silva 950, 66055-090-Belèm, PA, Brazilen
kaust.authorCroue, Jean-Philippeen

Related articles on PubMed

All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.