Įvairių nafta ir jos produktais užterštų gruntų plovimo efektyvumo tyrimas

Abstract

The goal of investigation was to examine effectiveness surfactant of biological origin (biosurfactant) "Emulvinas" for oil contaminated soil washing. It is known biosurfactants are less toxic, more biodegradable and less costs products then synthetic. Alter investigation it was determined: biosurjactant "Emulvinas'' was 1.5 times more effective then synthetic surfactants: "Emulvinas'' showed little stimulation of oil oxidising microorganizms activity, while synthetic surfactant inhibited microorganizms work. Influence of pollutant type for contaminated soil washing was established. After soils washing with biosurjactant "Emulvinas" sand retained 0.6 mg/g of oil and I.2 mg/g of mazul, black soil retained 5.4 mg/g of oil and 9.1 mg/g of mazut, clay retained 22.2 mg/g of oil and 29.8 mg/g of mazul.