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Authors: DORINA POP, VALER MICLE.
This paper presents the results of researches on the contamination and depollution of soil samples polluted with crude oil. The depollution was performed by repeatedly heating the soil samples at the constant temperature of 350 degrees C, and different times of keeping in the proposed installation: 5, 10 and 15 minutes. The initial quantity of the pollutant in the soil was 15321.6; 25113.6 and 79000 mg/kg of dried substance. At the end of these experiments, the results have revealed that the efficiency of thermal desorption was influenced by the duration of the treatment and the degree of contamination, obtaining a highly efficient decontamination process with efficiencies up to 99.85 %.
Key words: thermal desorption, decontamination, pollution, crude oil
