THE RESULTS OF THE EXPERIMENTAL EVALUATION OF THE INFLUENCE OF HUMIC SUBSTANCES ON THE CONTENT OF MOBILE FORMS OF HEAVY METALS IN POLLUTED GREY FOREST SOIL
The article presents the results of an experimental evaluation of the effect of humic substances obtained using different technologies on the content of mobile forms of heavy metals (copper, zinc, lead, cadmium) in technologically-altered gray forest soil. The study analyzed humic preparations obtained by traditional technology alkaline extraction of peat and innovative ultrasonic cavitation peat slurry. It was found that the innovative technology of ultrasonic cavitation has advantages over traditional alkaline extraction technology and provides a more concentrated humic preparations with neutral pH. Showed a reduction in the content of mobile forms of heavy metals in technologically-altered gray forest soil when making 0,01 % solution of humic substances obtained by the technology of ultrasonic cavitation.