An eco-efficient method to valorization of solid wastes: Hydrothermal treatment

Abstract

In this paper, it is presented the effect of Hydrothermal Treatment (HT) of ash from the incineration of municipal solid waste (MSWIA), classified as hazardous waste and industrial by-products such as coal combustion fly ash (FA). The most interesting results here presented they show that practically 100% of chloride ion content of some of these materials disappears after the hydrothermal treatment of the solid; they are also formed so important phases as tobermorite, C-S-H gel, belite etc, with cementing character. This treatment allows, therefore, valorise these wastes in cement-based materials and its application in the construction sector.