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UTYLIZATION METHODS OF SLAGS AND ASH FROM WASTE INCINERATION PLANTS
 
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Politechnika Krakowska im. Tadeusza Kościuszki, Instytut Inżynierii Materiałowej
 
 
Publication date: 2017-06-01
 
 
Corresponding author
Michał Łach   

Politechnika Krakowska im. Tadeusza Kościuszki, Instytut Inżynierii Materiałowej, al. Jana Pawła II 37, budynek D, p.D104, 31-864 Kraków, Polska
 
 
Inż. Ekolog. 2017; 3:37-46
 
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ABSTRACT
The paper presents modern management methods, solidification and immobilization of ash and slag from waste incineration plants. The innovative technologies for solving this kind of problem were described. Results focused on the most promising technologies of solidification, among others geopolymerization processes. The paper presents examples of the results of solidified ash and slag in the geopolymer matrix. The studies showed that the leachable of heavy metals from the geopolymer matrix containing ashes from the incineration of municipal waste qualifies them for storage in landfills for non-hazardous and inert. Moreover, these studies demonstrated practically 100% effectiveness for immobilization of the elements: bar (Ba), cadmium (Cd), zinc (Zn), mercury (Hg), nickel (Ni), lead (Pb). In the case of chromium III (Cr+3) 97% level of effectiveness of the immobilization was achieved. In order to immobilize chromium VI (Cr+6) introduced additions of sulfur compounds. The study confirmed the low efficiency of the immobilization of: arsenic (As), selenium (Se) and molybdenum (Mo).
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