Abstract
The paper presents the results of the study concerning the possibility of immobilization of secondary waste from municipal waste incineration plants in geopolymers. The study was conducted for 2 different sources of ash from Poland and Lithuania. Three different types of waste were tested. Geopolymers were made with 70% added waste from incineration plants. The samples were made in many variants: geopolymers were made on the basis of fly ash and metakoline and waste was added untreated and after washing with water in a ratio of 1:5 (solid/liquid). Compressive strength and water leaching tests were carried out. As a result of the study, geopolymers as a material for immobilization of secondary waste from waste incineration plants were found to be useful. Water leaching tests proved that all the tested wastes stabilized in geopolymers are characterized by very low leachability values of metals suchas: copper, zinc, lead, etc.
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