Designation of Chosen Heavy Metals in Used Engine Oils Using the XRF Method

Abstract

Taking into consideration the fact that used oils are considered hazardous and extremely toxic, their subsequent use creates a real threat to the environment. The only effective measure for protecting the natural environment from used oil contamination is collection and controlled utilization. Only appropriate used oil management can guarantee minimal environmental contamination and prevent its irreversible degradation.The aim of our study was to determine the content of select heavy metal elements in used engine oils originating from agricultural tractors and agricultural machines of varying mileage. The tests were carried out by using the HD XRF method. The researched samples showed a high content of zinc remaining at 726-1,389 mg·kg , and Pb 0.9-13.71 mg·kg -1 . Mercury and cadmium were not found in the tested oils.

Impact Assessment of Farm Tractor Engine Fuel Injector Damage on Engine Oil Properties

“…The high content of this element in engine oil may indicate an increased wear of slide bearing in an engine. When analysing the composi-tion of the used oils from agricultural tractors, Zając et al (2015) found the content of tin in three out of twenty investigated oils, which may confirm that the presence of this ele-ment results from the wear of engine elements.…”

Possibilities for Reducing Combustion Engine Fuel Consumption and Gas Emissions

“…Values of nitrogen oxide emissions (NO x ) decrease in the lean mixture area because combustion temperature is reduced during engine operation in the lean working regime (Fig. 5) [12][13][14][15].…”

The Assessment of Wear Metal Concentration in Engine Oils Originating From Agricultural Tractors in the Aspect of Their Operational Properties

“…The engine oil obtained at the end of the oil-change interval may be a valuable source of information on the processes and causes of wear of the tribological systems of the engine. The applied XRF method, unlike other methods, makes it easy to determine the concentrations of elements in a very wide measuring range (Pouzar et al, 2001;Zając et al, 2015).…”