FIELD: disposal of drains. SUBSTANCE: invention is meant to be applied in the process of rehabilitation of radiocontaminated areas. Installation containing air tank with, disposed therein, grainy immobilized charge and contaminated drain supply- and purified drain discharge-line is additionally provided with mixer, disperser, microfilter, disintegrator, and pyrolysis chamber. Air tank on its inlet communicates through disperser with mixer and, on its outlet, through microfilter with disintegrator having two outlets. One of them is connected with air tank disperser and the other with pyrolysis chamber. The latter has hearth, burner, and discharge means for solid and liquid pyrolysis products, liquid product discharge means being connected with additional disperser. EFFECT: enhanced efficiency of drain treatment. 1 dwg
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