scholarly journals Autonomous Graphene Vessel for Suctioning and Storing Liquid Body of Spilled Oil

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Taewoo Kim ◽  
Jeong Seok Lee ◽  
Geonhui Lee ◽  
Dong Kyun Seo ◽  
Youngbin Baek ◽  
...  
Keyword(s):  
2019 ◽  
Vol 72 (10) ◽  
Author(s):  
Palmira G Petrova ◽  
Eya E Egorova ◽  
Victoriya E Egorova ◽  
Semen E Grigor'ev ◽  
Lena R Turkebaeva
Keyword(s):  

2021 ◽  
Vol 9 (1) ◽  
pp. 97
Author(s):  
Merv Fingas

The visual appearance of oil spills at sea is often used as an indicator of spilled oil properties, state and slick thickness. These appearances and the oil properties that are associated with them are reviewed in this paper. The appearance of oil spills is an estimator of thickness of thin oil slicks, thinner than a rainbow sheen (<3 µm). Rainbow sheens have a strong physical explanation. Thicker oil slicks (e.g., >3 µm) are not correlated with a given oil appearance. At one time, the appearance of surface discharges from ships was thought to be correlated with discharge rate and vessel speed; however, this approach is now known to be incorrect. Oil on the sea can sometimes form water-in-oil emulsions, dependent on the properties of the oil, and these are often reddish in color. These can be detected visually, providing useful information on the state of the oil. Oil-in-water emulsions can be seen as a coffee-colored cloud below the water surface. Other information gleaned from the oil appearance includes coverage and distribution on the surface.


Chemosphere ◽  
2021 ◽  
pp. 129516
Author(s):  
T.D. Minh ◽  
M.C. Ncibi ◽  
V. Srivastava ◽  
B. Doshi ◽  
M. Sillanpää
Keyword(s):  

2021 ◽  
Author(s):  
A. N. Grebenkin ◽  
E. L. Akim ◽  
A. A. Grebenkin ◽  
A. A. Pekarets ◽  
A. V. Demidov

2014 ◽  
Vol 743 ◽  
Author(s):  
Stefan Karpitschka ◽  
Hans Riegler

AbstractUnexpectedly, under certain conditions, sessile drops from different but completely miscible liquids do not always coalesce instantaneously upon contact: the drop bodies remain separated in a temporary state of non-coalescence, connected through a thin liquid bridge. Here we investigate the transition between the states of instantaneous coalescence and temporary non-coalescence. Experiments reveal that it is barely influenced by viscosities and absolute surface tensions. The main system control parameters for the transition are the arithmetic means of the three-phase angles, $\overline{\Theta }_{a}$, and the surface tension differences $\Delta \gamma $ between the two liquids. These relevant parameters can be combined into a single system parameter, a specific Marangoni number $\widetilde{M}=3\Delta \gamma /(2\overline{\gamma }\overline{\Theta }_{a}^2)$. This $\widetilde{M}$ universally characterizes the coalescence transition behaviour as a function of both the physicochemical liquid properties and the shape of the liquid body in the contact region. The transition occurs at a certain threshold value $\widetilde{M}_t$ and is sharp within the experimental resolution. The experimentally observed threshold value of $\widetilde{M}_t\approx 2$ agrees quantitatively with values obtained by simulations assuming realistic material parameters. The simulations indicate that the absolute value of $\widetilde{M}_t$ very weakly depends on the molecular diffusivity.


Eos ◽  
2015 ◽  
Vol 96 ◽  
Author(s):  
Brendan Bane

Research on two dispersants used to break up spilled oil suggests that the chemicals can kill or harm a widely–found shrimp important to estuary habitats. The toxicity increases in less salty water.


1979 ◽  
Vol 1979 (1) ◽  
pp. 649-652 ◽  
Author(s):  
Ivan M. Lissauer ◽  
Donald L. Murphy

ABSTRACT The methods used to forecast the movement of spilled oil have not changed significantly since the Argo Merchant spill. Little has been done to improve the deficiencies brought to light during this incident. Some of the deficiencies in the state-of-the-art are examined here, particularly those related to our incomplete knowledge of the physical mechanisms involved in oil spill movement. A basic framework for the development of an improved forecasting system is presented. It is based on the integration of a horizontal transport model, an evaporation model, and a vertical dispersion model.


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