Selected properties of cobalt-contaminated soil following the application of neutralising substances

Abstract

The aim of the study was to determine the influence of increasing cobalt soil contamination (0 mg·kg−1, 20 mg·kg−1, 40 mg·kg−1, 80 mg·kg−1, 160 mg·kg−1, 320 mg·kg−1) after the application of neutralising substances on selected soil properties. In the soil without an addition of neutralising substances, the highest doses of cobalt caused the pH, total exchangeable bases, cation exchange capacity and the degree of base saturation to decrease and the hydrolytic acidity of soil to increase. Among the substances used, zeolite and calcium oxide (particularly) had the most advantageous influence on the analysed soil properties. They caused the pH, total exchangeable bases and cation exchange capacity to increase and the hydrolytic acidity to decrease. Among the other substances, it was charcoal that had the greatest influence on the soil properties, but the way it influenced the total exchangeable bases, the cation exchange capacity of soil and the degree of base saturation were opposite to the way calcium oxide influenced these properties.

Effect of Neutralising Substances on Selected Properties of Soil Contaminated With Cobalt

“…The lesser harmfulness of cobalt occurring in alkaline or neutral soil environment is also confirmed in the study by Wendling et al [2009]. A favourable effect of calcium oxide on the soil properties analysed in the work was also found by Kosiorek and Wyszkowski [2016], and Wyszkowski and Sivitskaya [2015]. The study by Azeez and Van-Averbeke [2012] confirmed the positive effect of farmyard manure on physico-chemical soil properties, particularly on the soil pH.…”

Content of macronutrients in oat (Avena sativa L.) after remediation of soil polluted with cobalt

“…The strongest effect on the uptake of this element is attributed to the plant’s species, age and mechanisms which occur in the plant. A significant role is also played by soil properties and climatic conditions characteristic for a given territory (Kashin 2011; Kosiorek and Wyszkowski 2016a, b). It is therefore essential to search for optimal methods to limit cobalt uptake by plants, for example through application of different substances to soil and by using phytoremediation abilities of plants (Pszczółkowski et al 2012).…”

Effect of manure, clay, charcoal, zeolite, and calcium oxide on some properties of soil contaminated with cobalt

“…In other research by Kosiorek and Wyszkowski (2016b), the most beneficial effect on soil properties was that of zeolite and calcium oxide. They caused an increase in soil pH, total exchangeable bases, cation exchange capacity, and a decrease in hydrolytic acidity.…”