METHOD OF DETERMINING THE APPROPRIATENESS OF MINE DUMPS FOR BIOLOGICAL RECULTIVATION

摘要

A method of determining the appropriateness of mine dumps for biological recultivation involves the determination of acidity and content of mobile aluminium in the dump soil. The acidity of aqueous extract of the dump soil is determined according to the age of the mine dump, according to the formula: pHH2O = 2,706 * A 0,235 . According to the calculated values of pH, the content of the mobile aluminium in mg-equiv. per 100 g of the dump soil is determined according to the formula as follows: A?=-10,50+28,386 pHH2O -0,5825 where: pHH2O û acidity of aqueous extract, A û age of mine dump in years, A? - content of mobile aluminium in mg-equiv. per 100 g of dump soil.