Pile covering of waste disposal using technosols made of municipal solid waste incineration bottom ash and coal combustion residues: A column leaching experiment

Technosols are characterized by a substantial quantity of artifacts or industrial wastes in the upper 100 cm. They can be used as cover caps mining rehabilitation, which vegetation is subsequently established. However, prolific growth limited chemical and physical properties technogenic substrates. As further studies need to conducted evaluate suitability municipal solid waste incineration bottom ash coal combustion residues caps, pH, electrical conductivity, total porosity, bulk density these substrates were measured. Furthermore, seepage pH conductivity covered uncovered technosols after saturation determined. The ash, 4–10 mm diameter, showed highest (1.16 g cm -3 ) lowest porosity (24.7%). In contrast, registered (57.2%). also revealed higher 12.5 values 7.8 mS -1 . no differences observed between treatments for (8.2–8.3) its (14.3–16.0 columns, when using technosol. This study provides information on use evapotranspiration covers during rehabilitation. management global challenge this resource valuable not only industry but potentially other fields, such construction. heavy metal content from should studied before implementing large scale.