The use of calcium peroxide to clean the oil-contaminated soil

Abstract

In this paper, a method of cleaning oil-contaminated soil with calcium peroxide is considered. Soils, which are typical for the territory of the Republic of Bashkortostan, are taken as the object of study. Calcium peroxide was obtained from still waste liquid i.e. soda production waste. The selected soil samples were artificially contaminated with oil from the Ishimbay field of Bashkortostan. Calcium peroxide was then added to the soil samples in different ratios. After a certain period of time, analyses for the content of petroleum products were carried out to determine the dynamics of soil cleaning from petroleum products. As a result of the studies, the effectiveness of using calcium peroxide to clean the soil of petroleum products has been shown. Proposed method of soil cleaning from oil and petroleum products by calcium peroxide consists in the fact that when this reagent interacts with moisture oxygen is released, which at the moment of its separation is more active in comparison with air oxygen; it promotes intensification of aeration processes and thereby ensures effective soil cleaning from petroleum products.