Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 496736
Title The NET effect of dispersants - a critical review of testing and modelling of surface oil dispersion
Author(s) Zeinstra-Helfrich, Marieke; Koops, Wierd; Murk, A.J.
Source Marine Pollution Bulletin 100 (2015)1. - ISSN 0025-326X - p. 102 - 111.
DOI http://dx.doi.org/10.1016/j.marpolbul.2015.09.022
Department(s) Sub-department of Environmental Technology
Marine Animal Ecology
Publication type Refereed Article in a scientific journal
Publication year 2015
Keyword(s) Chemical dispersion - Natural dispersion - Oil properties - Oil spill modelling - Response decision
Abstract

Application of chemical dispersants or mechanical dispersion on surface oil is a trade-off between surface effects (impact of floating oil) and sub-surface effects (impact of suspended oil). Making an informed decision regarding such response, requires insight in the induced change in fate and transport of the oil.We aim to identify how natural, chemical and mechanical dispersion could be quantified in oil spill models. For each step in the dispersion process, we review available experimental data in order to identify overall trends and propose an algorithm or calculation method. Additionally, the conditions for successful mechanical and chemical dispersion are defined.Two commonly identified key parameters in surface oil dispersion are: oil properties (viscosity and presence of dispersants) and mixing energy (often wind speed). Strikingly, these parameters play a different role in several of the dispersion sub-processes. This may explain difficulties in simply relating overall dispersion effectiveness to the individual parameters.

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