Impact of coagulation characteristics on the aggregation of microplastics in upper-ocean turbulence
The dynamics and aggregation of microplastics in marine environments are investigated through high-fidelity direct numerical simulations with Lagrangian point-particle tracking. The properties of microplastics and biogenic particles, including size, density, and concentration, align with scenarios t...
| Autores: | , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/413741 |
| Acceso en línea: | https://hdl.handle.net/2117/413741 https://dx.doi.org/10.1016/j.advwatres.2024.104798 |
| Access Level: | acceso abierto |
| Palabra clave: | Turbulence Microplastics Coagulation Marine aggregates Particle-laden flow Turbulència Microplàstics Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids |
| id |
ES_c8f1618fa52b53e780919bbb984dec75 |
|---|---|
| oai_identifier_str |
oai:upcommons.upc.edu:2117/413741 |
| network_acronym_str |
ES |
| network_name_str |
España |
| repository_id_str |
|
| spelling |
Impact of coagulation characteristics on the aggregation of microplastics in upper-ocean turbulencePizzi, Federico|||0000-0003-2018-3185Rahmani, MonaRomera Castillo, CristinaPeters, FrancescGrau Barceló, Joan|||0000-0002-2556-9936Capuano, Francesco|||0000-0003-0274-5260Jofre Cruanyes, Lluís|||0000-0003-2437-259XTurbulenceMicroplasticsCoagulationMicroplasticsMarine aggregatesParticle-laden flowTurbulenceTurbulènciaMicroplàsticsÀrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluidsThe dynamics and aggregation of microplastics in marine environments are investigated through high-fidelity direct numerical simulations with Lagrangian point-particle tracking. The properties of microplastics and biogenic particles, including size, density, and concentration, align with scenarios typical of seawater systems. The stickiness nature of microplastics, induced by biofilm formation (biofouling), is modeled through coagulation efficiency (stickiness parameter), which represents the probability of aggregation following a collision event. Two main aspects are at the core of the present work: analyzing the mechanisms of collision and coalescence between microplastics and biogenic particles, along with their spatial distribution, and characterizing the emerging aggregates. The results indicate that particles stickiness, concentration and (especially) size impact on the collision and coalescence rates. Furthermore, microplastics exhibit a strong tendency to accumulate near biogenic particles, leading to the creation of hetero-aggregates whose tendency to sink supports the general hypothesis of “missing microplastics”. Particularly, in cases where microplastics and biogenic particles are evenly concentrated, microplastics primarily contribute to the formation of aggregates. The stickiness mainly determines the most complex and large aggregates, which are less than 1% of the total.This work is funded by the TRITON project ( TED2021-132623A-I00 ) of the Agencia Estatal de Investigación (Spain).Peer ReviewedElsevier20242024-11-0120242024-09-03journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/413741https://dx.doi.org/10.1016/j.advwatres.2024.104798reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/4137412026-05-27T15:37:01Z |
| dc.title.none.fl_str_mv |
Impact of coagulation characteristics on the aggregation of microplastics in upper-ocean turbulence |
| title |
Impact of coagulation characteristics on the aggregation of microplastics in upper-ocean turbulence |
| spellingShingle |
Impact of coagulation characteristics on the aggregation of microplastics in upper-ocean turbulence Pizzi, Federico|||0000-0003-2018-3185 Turbulence Microplastics Coagulation Microplastics Marine aggregates Particle-laden flow Turbulence Turbulència Microplàstics Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids |
| title_short |
Impact of coagulation characteristics on the aggregation of microplastics in upper-ocean turbulence |
| title_full |
Impact of coagulation characteristics on the aggregation of microplastics in upper-ocean turbulence |
| title_fullStr |
Impact of coagulation characteristics on the aggregation of microplastics in upper-ocean turbulence |
| title_full_unstemmed |
Impact of coagulation characteristics on the aggregation of microplastics in upper-ocean turbulence |
| title_sort |
Impact of coagulation characteristics on the aggregation of microplastics in upper-ocean turbulence |
| dc.creator.none.fl_str_mv |
Pizzi, Federico|||0000-0003-2018-3185 Rahmani, Mona Romera Castillo, Cristina Peters, Francesc Grau Barceló, Joan|||0000-0002-2556-9936 Capuano, Francesco|||0000-0003-0274-5260 Jofre Cruanyes, Lluís|||0000-0003-2437-259X |
| author |
Pizzi, Federico|||0000-0003-2018-3185 |
| author_facet |
Pizzi, Federico|||0000-0003-2018-3185 Rahmani, Mona Romera Castillo, Cristina Peters, Francesc Grau Barceló, Joan|||0000-0002-2556-9936 Capuano, Francesco|||0000-0003-0274-5260 Jofre Cruanyes, Lluís|||0000-0003-2437-259X |
| author_role |
author |
| author2 |
Rahmani, Mona Romera Castillo, Cristina Peters, Francesc Grau Barceló, Joan|||0000-0002-2556-9936 Capuano, Francesco|||0000-0003-0274-5260 Jofre Cruanyes, Lluís|||0000-0003-2437-259X |
| author2_role |
author author author author author author |
| dc.subject.none.fl_str_mv |
Turbulence Microplastics Coagulation Microplastics Marine aggregates Particle-laden flow Turbulence Turbulència Microplàstics Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids |
| topic |
Turbulence Microplastics Coagulation Microplastics Marine aggregates Particle-laden flow Turbulence Turbulència Microplàstics Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids |
| description |
The dynamics and aggregation of microplastics in marine environments are investigated through high-fidelity direct numerical simulations with Lagrangian point-particle tracking. The properties of microplastics and biogenic particles, including size, density, and concentration, align with scenarios typical of seawater systems. The stickiness nature of microplastics, induced by biofilm formation (biofouling), is modeled through coagulation efficiency (stickiness parameter), which represents the probability of aggregation following a collision event. Two main aspects are at the core of the present work: analyzing the mechanisms of collision and coalescence between microplastics and biogenic particles, along with their spatial distribution, and characterizing the emerging aggregates. The results indicate that particles stickiness, concentration and (especially) size impact on the collision and coalescence rates. Furthermore, microplastics exhibit a strong tendency to accumulate near biogenic particles, leading to the creation of hetero-aggregates whose tendency to sink supports the general hypothesis of “missing microplastics”. Particularly, in cases where microplastics and biogenic particles are evenly concentrated, microplastics primarily contribute to the formation of aggregates. The stickiness mainly determines the most complex and large aggregates, which are less than 1% of the total. |
| publishDate |
2024 |
| dc.date.none.fl_str_mv |
2024 2024-11-01 2024 2024-09-03 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2117/413741 https://dx.doi.org/10.1016/j.advwatres.2024.104798 |
| url |
https://hdl.handle.net/2117/413741 https://dx.doi.org/10.1016/j.advwatres.2024.104798 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Elsevier |
| publisher.none.fl_str_mv |
Elsevier |
| dc.source.none.fl_str_mv |
reponame:UPCommons. Portal del coneixement obert de la UPC instname:Universitat Politècnica de Catalunya (UPC) |
| instname_str |
Universitat Politècnica de Catalunya (UPC) |
| reponame_str |
UPCommons. Portal del coneixement obert de la UPC |
| collection |
UPCommons. Portal del coneixement obert de la UPC |
| repository.name.fl_str_mv |
|
| repository.mail.fl_str_mv |
|
| _version_ |
1869419328895451136 |
| score |
15,81155 |