News Feature: The perplexing physics of oil dispersants
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چکیده
منابع مشابه
Degradation of Dispersants and Dispersed Oil
Chemical oil dispersants are proprietary mixtures of surfactants and solvents which are directly applied to a spill in order to reduce the natural attractive forces of the oil. When oil treated with dispersants is exposed to mixing energy, typically from wind and wave action, it is broken up into small droplets which may then become entrained in the water column (Li et al., 2009a; Li et al., 20...
متن کاملA protocol for assessing the effectiveness of oil spill dispersants in stimulating the biodegradation of oil
Dispersants are important tools in oil spill response. Taking advantage of the energy in even small waves, they disperse floating oil slicks into tiny droplets (<70 μm) that entrain in the water column and drift apart so that they do not re-agglomerate to re-form a floating slick. The dramatically increased surface area allows microbial access to much more of the oil, and diffusion and dilution...
متن کاملEffects of Oil Spill Dispersants on Marine Organisms
Editor’s Preface the env 3100 Issues in Environmental Science course is the “writing in the discipline” course for the environmental science program. in partial satisfaction of the course requirements, students must write a literature review on a topic of their choice that is both timely and relevant to the environmental science community. the most outstanding literature review is published in ...
متن کاملA Review of Literature Related to Oil Spill Dispersants
This report is a review of the literature on oil spill dispersants published from 1997 to August, 2008. The report identifies and focusses on recent advances in dispersant effectiveness, toxicity, and biodegradation. Other topics such as application, use, behaviour and fate are also covered. The prime motivation for using dispersants is to reduce the impact of oil on shorelines, thus the applic...
متن کاملShort and long term toxicity of crude oil and oil dispersants to two representative coral species.
Oil dispersants, the tool of choice for treating oil spills in tropical marine environments, is potentially harmful to marine life, including reef corals. In a previous study, we found that dispersed oil and oil dispersants are harmful to soft and hard coral species at early life stages. In this broader study, we employed a "nubbin assay" on more than 10 000 coral fragments to evaluate the shor...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2019
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1907155116