The use of non-toxic technogenic and natural materials to ensure the stability of disturbed ecosystems

Experimental field tests of the developed technology of the disturbed lands restoration with use of preliminary neutralization of the soil polluted with slurry alkaline waters are carried out. Various technological solutions for the use of substrates made of nontoxic technogenic and natural materials were studied. It was found that the use of combined soil treatment with a neutralizer, followed by the introduction of overburden quarry sand and silt from the treatment facilities of 5-year storage as the main component of the soil substrate led to a decrease in pH to the normalized value and the restoration of agrochemical properties of the soil. The ecological and toxicological assessment of the soil taken from the recultivated experimental area confirmed the absence of toxicity of the investigated substrates and their application ensured the stability of the ecosystem in the area of the operating industrial enterprise.