Analysis of sediment from bottom water in tanks with stored diesel oil

In this study, the bottom water obtained from short- and long-term storage diesel oil tanks was ex-amined in order to determine the substances that indicate the interaction of water with fuel components. The actual water phases obtained from tanks with standard diesel oil and with improved low-temperature proper-ties, with the current level of biocomponent and fuel additives were used for the research. The sediments formed as a result of water evaporation were subjected to qualitative and quantitative tests, and the obtained results were compared with the composition of commercially available additives and a biocomponent. The test results indicated the presence of hydrocarbons, additives, microorganisms and compounds unidentified in the conducted tests, which confirmed the interaction of fuel components with the water phase in tanks with stor-age diesel oil. Keywords: solubility of hydrocarbons, bottom water, fuel storage tanks, fuel additive