I have been employed since 2013 as a research and teaching assistant at the Gdynia Maritime University. I conduct lectures and laboratory classes on Ship Machinery and Equipment and the ship engine room simulator. My research activity concerns the possibility of removing pollutants from petroleum products using environmentally friendly means. Due to the fact that the development of pollution of fuels and oils is mainly caused by the reproduction of microorganisms, for which the petroleum product is a source of food, it is necessary to stop this process. Currently, the main measure to combat the growth of microorganisms are biocides, which are very harmful to the environment; it is proposed that they be replaced by environmentally friendly means. Recent articles include: Research on the effect of the effective microorganisms, silver solution and colloidal nanosilver addition on the engine oil acid number (TAN), Combustion Engines, 2021, vol. 186 (nr 3), pp. 59-63 and Research on the effect of the effective microorganisms, silver solution and colloidal nanosilver addition on the engine oil base number (TBN), Combustion Engines, 2021, vol. 187 (No. 4), pp. 8-11