Technology for Restoration and Ecological Rehabilitation of Lands Violated by Toxic Reagents

Abstract

A technology has been developed and tested on an industrial scale for the restoration of disturbed lands contaminated with alkali-containing sludge waters. In the process of field research, the use of various neutralized soil neutralizers in the area adjacent to the alumina sludge storage facility was verified. Tests confirmed that the most effective neutralizer of alkaline soil is ammonium sulfate, which reduces the pH of the aqueous extract from 10,2 to 8,2 units. Using non-toxic technogenic materials, substrate compositions have been developed to restore the potentially fertile layer and the technology of ecological rehabilitation of disturbed lands for their subsequent use has been tested.