Oil-mineral flocculation and settling velocity in saline water
dc.contributor.author | Ye, L | |
dc.contributor.author | Manning, Andrew | |
dc.contributor.author | Hsu, T-J | |
dc.date.accessioned | 2020-07-09T20:56:22Z | |
dc.date.issued | 2020-04-15 | |
dc.identifier.issn | 0043-1354 | |
dc.identifier.issn | 1879-2448 | |
dc.identifier.other | 115569 | |
dc.identifier.uri | http://hdl.handle.net/10026.1/15971 | |
dc.description | 12 months embargo. | |
dc.description.abstract |
Cohesive particles in aquatic systems can play an important role in determining the fate of spilled oil via the generation of Oil-Mineral Aggregates (OMAs). Series of laboratory experiments have been conducted aiming at filling the knowledge gap regarding how cohesive clay particles influence the accumulation of petroleum through forming different aggregate structures and their resulting settling velocity. OMAs have been successfully created in a stirring jar with artificial sea-water, crude oil and two types of most common cohesive minerals, Kaolinite and Bentonite clay. With the magnetic stirrer adjusted to 490 rpm to provide a high level homogeneous flow turbulence (Turbulence dissipation ε estimated to be about 0.02 m2⋅s-3), droplet OMAs and flake/solid OMAs were obtained in oil-Kaolinite sample and oil-Bentonite sample, respectively. Kaolinite clay with relatively low flocculation rate (Rf = 0.13 min-1) tends to physically attach around the surface of oil droplets. With the lower density of oil, these oil-Kaolinite droplet OMAs generally show lower settling velocity comparing to pure mineral Kaolinite flocs. Differently, Bentonite clay with higher flocculation rate (Rf = 0.66 min-1) produces more porous flocs that can absorb or be absorbed by the oil and form compact flake/solid OMAs with higher density and settling velocity than pure Bentonite flocs. In the mixed Kaolinite-Bentonite sample (1:1 in weight), oil is observed to preferably interacting with Bentonite and increase settling velocity especially in larger floc size classes. | |
dc.format.extent | 115569-115569 | |
dc.format.medium | Print-Electronic | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | Elsevier BV | |
dc.subject | Oil-mineral aggregates (OMAs) | |
dc.subject | Flocculation | |
dc.subject | Settling velocity | |
dc.subject | Microfloc | |
dc.subject | Macrofloc | |
dc.title | Oil-mineral flocculation and settling velocity in saline water | |
dc.type | journal-article | |
dc.type | Journal Article | |
plymouth.author-url | https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000523569000054&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008 | |
plymouth.volume | 173 | |
plymouth.publication-status | Published | |
plymouth.journal | Water Research | |
dc.identifier.doi | 10.1016/j.watres.2020.115569 | |
plymouth.organisational-group | /Plymouth | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences | |
plymouth.organisational-group | /Plymouth/Research Groups | |
plymouth.organisational-group | /Plymouth/Research Groups/Marine Institute | |
plymouth.organisational-group | /Plymouth/Users by role | |
plymouth.organisational-group | /Plymouth/Users by role/Academics | |
dc.publisher.place | England | |
dcterms.dateAccepted | 2020-01-29 | |
dc.rights.embargodate | 2021-2-2 | |
dc.identifier.eissn | 1879-2448 | |
dc.rights.embargoperiod | Not known | |
rioxxterms.funder | Directorate for Geosciences | |
rioxxterms.identifier.project | Collaborative Research: Understanding the physics of flocculation processes and cohesive sediment transport in bottom boundary layers through multi-scale modeling | |
rioxxterms.versionofrecord | 10.1016/j.watres.2020.115569 | |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
rioxxterms.licenseref.startdate | 2020-04-15 | |
rioxxterms.type | Journal Article/Review | |
plymouth.funder | Collaborative Research: Understanding the physics of flocculation processes and cohesive sediment transport in bottom boundary layers through multi-scale modeling::Directorate for Geosciences |