石油在低盐水和高盐水中的分散效果

IF 4.9 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin Pub Date : 2025-04-08 DOI:10.1016/j.marpolbul.2025.117913

Robyn N. Conmy , Devi Sundaravadivelu , Blake A. Schaeffer , Brian Robinson , Tom King , Robert Grosser

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引用次数: 0

摘要

化学分散剂配方通常在含盐量为30至40 ppt（千分之一）的水中提供最大的油分散，其中包括典型的35 ppt的海洋盐度。海洋盐度可因地区而异，从因淡水河流流入或冰融化而产生的非常低的值，到在冻结期或在天然盐水池中产生的极高值。采用折流瓶试验（BFT）和油滴粒径分布（DSD）方法，研究了矿化度（0.2 ~ 125 ppt）对3种油类和4种分散剂分散效能（DE）的影响。储罐规模的分散支持实验室规模的DSD结果。使用BFT，轻质和中质原油在较宽的盐度范围内有效分散。然而，具有相似DE值的分散体在DSD指标中具有广泛的范围，这表明后者为泄漏计划和了解泄漏油的运输和命运提供了有用的信息。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Dispersion effectiveness of petroleum oils in low and hypersaline waters

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Dispersion effectiveness of petroleum oils in low and hypersaline waters

Chemical dispersant formulations typically provide maximum oil dispersion in waters between 30 and 40 ppt (parts per thousand) salt content, which encompasses typical 35 ppt ocean salinity. Ocean salinity can vary locally, from very low values due to freshwater river inflows or ice melt, to extremely high values during freeze up periods or within natural brine pools. In this study, the influence of salinity (0.2–125 ppt) on dispersion effectiveness (DE) was evaluated for three oils and four dispersants using the baffled flask test (BFT) and oil droplet size distribution (DSD) measures. Tank-scale dispersions support the laboratory-scale results of DSD. Light and medium crude oils were effectively dispersed over a wide salinity range using the BFT. However, dispersions exhibiting similar DE values possessed a wide range in DSD metrics, suggesting that the latter offers useful information for spill planning and understanding the transport and fate of spilled oil.

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来源期刊

Marine pollution bulletin 环境科学-海洋与淡水生物学

CiteScore

10.20

自引率

15.50%

发文量

1077

审稿时长

68 days

期刊介绍： Marine Pollution Bulletin is concerned with the rational use of maritime and marine resources in estuaries, the seas and oceans, as well as with documenting marine pollution and introducing new forms of measurement and analysis. A wide range of topics are discussed as news, comment, reviews and research reports, not only on effluent disposal and pollution control, but also on the management, economic aspects and protection of the marine environment in general.