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Fly ash and slag that result from combustion of coal in thermal power plants are important environmental problems; because they contain heavy metals. Sewage sludge that is an ultimate product of wastewater treatment contains pollutants removed from wastewater and these pollutants limits its beneficial usage. The aim of this study is to determine the leachability of some heavy metals from fly ash and slag of power plant and wastewater treatment sludge by Toxicity Characteristic Leaching Procedure (TCLP) and American Society of Testing and Materials (ASTM) methods. According to TCLP and ASTM results found that the heavy metal concentrations leached to solutions after leaching of the wastes were higher than the limits given by regulation. It was determined that important pollution can be seen as a result of the leaching of these wastes.

Leachability Of Heavy Metals From Fly Ash, Slag Of Thermal Power Plant And Treatment Sludge