Show simple item record

dc.contributor.author
Jacquin, Céline
dc.contributor.author
Yu, Diya
dc.contributor.author
Sander, Michael
dc.contributor.author
Domagala, Kamila W.
dc.contributor.author
Traber, Jacqueline
dc.contributor.author
Morgenroth, Eberhard
dc.contributor.author
Julian, Timothy R.
dc.date.accessioned
2020-07-01T06:50:15Z
dc.date.available
2020-06-28T02:43:33Z
dc.date.available
2020-07-01T06:50:15Z
dc.date.issued
2020-12-01
dc.identifier.issn
2589-9147
dc.identifier.other
10.1016/j.wroa.2020.100058
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/423473
dc.identifier.doi
10.3929/ethz-b-000423473
dc.description.abstract
A leading challenge in drinking water treatment is to remove small-sized viruses from the water in a simple and efficient manner. Multi-walled carbon nanotubes (MWCNT) are new generation adsorbents with previously demonstrated potential as filter media to improve virus removal. This study therefore aimed to evaluate the field applicability of MWCNT-filters for virus removal in water containing natural organic matter (NOM) as co-solute to viruses, using batch equilibrium experiments. Contrary to previous studies, our results showed with MS2 bacteriophages single-solute systems that the affinity of MWCNT for MS2 was low, since after 3 h of equilibration only 4 log10 reduction value (LRV) of MS2 (20 mL at an initial concentration of 106 PFU MS2/mL) were reached. Single solute experiments with Suwannee river NOM (SRNOM) performed with environmentally-relevant concentrations showed MWCNT surface saturation at initial SRNOM concentrations between 10 and 15 mgC/L, for water pH between 5.2 and 8.7. These results suggested that at NOM:virus ratios found in natural waters, the NOM would competitively suppress virus adsorption onto MWCNT, even at low NOM concentrations. We confirmed this expectation with SRNOM-MS2 co-solute experiments, which showed an exponential decrease of the MS2 LRV by MWCNT with an increase in the initial SRNOM concentration. More interestingly, we showed that pre-equilibrating MWCNT with a SRNOM solution at a concentration as low as 0.4 mgC/L resulted in a LRV decrease of 3 for MS2, due to the formation of a negatively charged SRNOM adlayer on the MWCNT surface. Complementary batch experiments with natural NOM-containing waters and competition experiments with SRNOM in the presence of CaCl2 confirmed that the presence of NOM in waters challenges virus removal by MWCNT-filters, irrespective of the concentration and type of NOM and also in the presence of Ca2+. We therefore conclude that MWCNT-filters produced with commercially available pristine MWCNT cannot be considered as a viable technology for drinking water virus removal.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Multiwalled carbon nanotubes
en_US
dc.subject
Virus treatment
en_US
dc.subject
Natural organic matter
en_US
dc.subject
Competitive adsorption
en_US
dc.subject
Drinking water
en_US
dc.title
Competitive co-adsorption of bacteriophage MS2 and natural organic matter onto multiwalled carbon nanotubes
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
Water Research X
ethz.journal.volume
9
en_US
ethz.pages.start
100058
en_US
ethz.size
12 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Amsterdam
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02608 - Institut für Umweltingenieurwiss. / Institute of Environmental Engineering::03832 - Morgenroth, Eberhard / Morgenroth, Eberhard
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02721 - Inst. f. Biogeochemie u. Schadstoffdyn. / Inst. Biogeochem. and Pollutant Dynamics::03850 - McNeill, Kristopher / McNeill, Kristopher
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02608 - Institut für Umweltingenieurwiss. / Institute of Environmental Engineering::03832 - Morgenroth, Eberhard / Morgenroth, Eberhard
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02721 - Inst. f. Biogeochemie u. Schadstoffdyn. / Inst. Biogeochem. and Pollutant Dynamics::03850 - McNeill, Kristopher / McNeill, Kristopher
ethz.date.deposited
2020-06-28T02:43:37Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2020-07-01T06:50:27Z
ethz.rosetta.lastUpdated
2023-02-06T20:10:37Z
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Competitive%20co-adsorption%20of%20bacteriophage%20MS2%20and%20natural%20organic%20matter%20onto%20multiwalled%20carbon%20nanotubes&rft.jtitle=Water%20Research%20X&rft.date=2020-12-01&rft.volume=9&rft.spage=100058&rft.issn=2589-9147&rft.au=Jacquin,%20C%C3%A9line&Yu,%20Diya&Sander,%20Michael&Domagala,%20Kamila%20W.&Traber,%20Jacqueline&rft.genre=article&rft_id=info:doi/10.1016/j.wroa.2020.100058&
 Search print copy at ETH Library

Files in this item

Thumbnail

Publication type

Show simple item record