A method for repairing coal gangue yard by using winery sludge and waste mushroom residue

Abstract

The present invention belongs to the technical field of ecological restoration, and discloses a method for restoring a coal gangue yard by using winery sludge and waste mushroom residue. The optimal formula of coal gangue, mushroom residue and sludge for restoring the coal gangue yard is determined; according to the optimal formula of coal gangue, mushroom residue and sludge for restoring the coal gangue yard, the ecological restoration of the vegetation in the coal gangue yard is carried out by using winery sludge and mushroom residue; by measuring various indexes in the leachate during the growth process of ryegrass in the coal gangue yard, the restoration effect of the coal gangue yard is identified. In the method for restoring a coal gangue yard by using winery sludge and waste mushroom residue of the present invention, by measuring various indexes in the leachate during the growth process of ryegrass in the coal gangue yard, 75% coal gangue, 5% mushroom residue and 20% sludge are selected as the optimal formula for restoring the coal gangue yard; the vegetation restoration of the coal gangue yard is carried out by using winery sludge and mushroom residue, and the dissolution of pollutants in the coal gangue leachate is significantly reduced, and the ecological restoration of the coal gangue yard can be quickly carried out.

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