EVALUATION OF HUMIC MINERAL COMPLEX EFFICIENCY AT REMEDIATION OF ARSENIC AND HEAVY METALS CONTAMINATED AGRICULTURAL AND RESIDENTIAL LANDS

Abstract

The purpose of the paper is to conduct a study evaluating the efficiency of the developed humic mineral complex against arsenic and heavy metals under the remediation of agricultural and residential soils subjected to prolonged anthropogenic impact. Methods. The studies have been conducted in order to determine the optimal concentration of the humic preparation, to estimate the effect of the detoxicating preparations under the investigation on the reduction of soil toxicity. Results. Using infrared spectra it has been proved that there are significant changes in the structure of the humic mineral complex as compared with the standard of humic acid. Conclusions. It is shown that the calculated coefficients of the synergistic effect of the combined action of humic acids and lime of the developed humic mineral complex are two or three times higher than those under the individual effect of humic acid and lime when conducting the detoxification of arsenic contaminated soils.