SOME PROPERTIES OF SOIL CONTAMINATED WITH FUEL OIL AFTER APPLICATION OF DIFFERENT SUBSTANCES

摘要

The study has been undertaken in order to determine the influence of different substances (nitrogen, compost, bentonite, zeolite and calcium oxide) on selected properties of soil contaminated with fuel oil. The analyzed properties of soil proved to bedependent on the fuel oil contamination and application of different substances. The experiment was set up on acid soil which was contaminated with fuel oil in the following amounts: 0, 5, 10, 15 and 20 g kg~(-1) d.m. of soil. Fuel oil raised the soil'spH but depressed its hydrolytic acidity, total exchangeable bases and cation exchange capacity. Among the substances applied to soil in order to neutralize the effect of contamination with fuel oil, bentonite and calcium oxide had the strongest influence on the soil's properties. They raised the soil's pH, total exchangeable bases and cation exchange capacity but lowered its hydrolytic acidity. The influence produced by the remaining tested substances, and nitrogen or compost in particular, on the examined characteristics of soil was relatively weak.