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dc.contributor.author
Peydayesh, Mohammad
dc.contributor.author
Suta, Toni
dc.contributor.author
Usuelli, Mattia
dc.contributor.author
Handschin, Stephan
dc.contributor.author
Canelli, Greta
dc.contributor.author
Bagnani, Massimo
dc.contributor.author
Mezzenga, Raffaele
dc.date.accessioned
2021-07-27T06:13:15Z
dc.date.available
2021-07-22T02:45:12Z
dc.date.available
2021-07-27T06:13:15Z
dc.date.issued
2021-07-06
dc.identifier.issn
0013-936X
dc.identifier.issn
1520-5851
dc.identifier.other
10.1021/acs.est.1c01918
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/496954
dc.description.abstract
Water contamination is a global threat due to its damaging effects on the environment and human health. Water pollution by microplastics (MPs), dissolved natural organic matter (NOM), and other turbid particles is ubiquitous in water treatment. Here, we introduce lysozyme amyloid fibrils as a novel natural bio-flocculant and explore their ability to flocculate and precipitate the abovementioned undesired colloidal objects. Thanks to their positively charged surface in a very broad range of pH, lysozyme amyloid fibrils show an excellent turbidity removal efficiency of 98.2 and 97.9% for dispersed polystyrene MPs and humic acid (HA), respectively. Additionally, total organic carbon measurements confirm these results by exhibiting removal efficiencies of 93.4 and 61.9% for purifying water from dispersed MPs and dissolved HA, respectively. The comparison among amyloid fibrils, commercial flocculants (FeCl3 and polyaluminumchloride), and native lysozyme monomers points to the superiority of amyloid fibrils at the same dosage and sedimentation time. Furthermore, the turbidity of pristine and MP-spiked wastewater and lake water decreased after the treatment by amyloid fibrils, validating their coagulation-flocculation performance under natural conditions. All these results demonstrate lysozyme amyloid fibrils as an appropriate natural bio-flocculant for removing dispersed MPs, NOM, and turbid particles from water.
en_US
dc.language.iso
en
en_US
dc.publisher
ACS Publications
en_US
dc.subject
coagulation-flocculation
en_US
dc.subject
microplastics
en_US
dc.subject
natural organic matter
en_US
dc.subject
water purification
en_US
dc.subject
amyloid fibrils
en_US
dc.title
Sustainable Removal of Microplastics and Natural Organic Matter from Water by Coagulation-Flocculation with Protein Amyloid Fibrils
en_US
dc.type
Journal Article
dc.date.published
2021-06-25
ethz.journal.title
Environmental Science & Technology
ethz.journal.volume
55
en_US
ethz.journal.issue
13
en_US
ethz.journal.abbreviated
Environ. Sci. Technol.
ethz.pages.start
8848
en_US
ethz.pages.end
8858
en_US
ethz.identifier.wos
ethz.publication.place
Washington, DC
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2021-07-22T02:45:30Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2021-07-27T06:13:21Z
ethz.rosetta.lastUpdated
2021-07-27T06:13:21Z
ethz.rosetta.versionExported
true
ethz.COinS
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