- Tytuł:
- Hydrocarbons on sea water: steady-state spreading signatures determined by an optical method
- Autorzy:
-
Boniewicz-Szmyt, K.
Pogorzelski, S.
Mazurek, A. - Powiązania:
- https://bibliotekanauki.pl/articles/49155.pdf
- Data publikacji:
- 2007
- Wydawca:
- Polska Akademia Nauk. Instytut Oceanologii PAN
- Tematy:
-
oil pollution
optical method
sea water
hydrocarbon
contamination
petroleum derivative - Opis:
- The spreading properties of several hydrocarbons (vegetable, engine, gear and crude oils) on distilled and artificial sea water were determined under laboratory conditions using a novel optical method. With the aid of Langmuir’s equation, the geometrical signatures of a discrete lens of each hydrocarbon droplet floating on a water tank served to calculate the entering E (31.30–94.18 mN m−1) and spreading S (−3.50 to −57.49 mN m−1) coefficients, and equilibrium thicknesses t∞ (0.20–1.25 cm). They appeared to be in agreement with the values derived from direct interfacial tension measurements (Wilhelmy plate and stalagmometer methods). Empirical relations of the normalized lens radius rL/rdrop and S on the water surface tension γAW were postulated as being of significant value in oil spill assessment studies at sea. The parameters obtained together with the surface properties of a natural surfactant-containing water body represent the principal input data required for modelling the spreading of a surface-tension-gradient-driven oil spill at sea.
- Źródło:
-
Oceanologia; 2007, 49, 3
0078-3234 - Pojawia się w:
- Oceanologia
- Dostawca treści:
- Biblioteka Nauki
Artykuł