Impact of microplastics on oil dispersion efficiency in the marine environment

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

8 Scopus Citations
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Author(s)

  • Min Yang
  • Baiyu Zhang
  • Yifu Chen
  • Kenneth Lee
  • Bing Chen

Detail(s)

Original languageEnglish
Article number13752
Journal / PublicationSustainability
Volume13
Issue number24
Online published13 Dec 2021
Publication statusPublished - Dec 2021

Link(s)

Abstract

Oil spill and microplastics (MPs) pollution has raised global concerns, due to the negative impacts on ocean sustainability. Chemical dispersants were widely adopted as oil-spill-treating agents. When MPs exist during oil dispersion, MP/oil-dispersant agglomerates (MODAs) are observed. This study explored how MPs affect oil-dispersion efficiency in oceans. Results showed that, under dispersant-to-oil volumetric ratio (DOR) 1:10 and mixing energy of 200 rpm, the addition of MPs increased the oil droplet size, total oil volume concentration, and oil-dispersion efficiency. Under DOR 1:25 and mixing energy of 120 rpm, the addition of MPs increased the oil droplet size but resulted in a decrease of total oil volume concentration and dispersion efficiency. Compared with the oil volume concentration, the oil droplet size may no longer be an efficient parameter for evaluating oil-dispersion efficiency with the existence of MODAs. A machine learning (ML)-based XGBRegressor model was further constructed to predict how MPs affected oil volume concentration and oil-dispersion efficiency in oceans. The research outputs would facilitate decision-making during oil-spill responses and build a foundation for the risk assessment of oil and MP co-contaminants that is essential for maintaining ocean sustainability.

Research Area(s)

  • Dispersant, Machine learning, Microplastics, Mixing energy, Oil spill, Oil volume concentration

Citation Format(s)

Impact of microplastics on oil dispersion efficiency in the marine environment. / Yang, Min; Zhang, Baiyu; Chen, Yifu et al.
In: Sustainability, Vol. 13, No. 24, 13752, 12.2021.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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