1 research outputs found
Potential of Hazardous Waste Encapsulation in Concrete Compound Combination with Coal Ash and Quarry Fine Additives
Coal
power plants are producing huge amounts of coal ash that may
be applied to a variety of secondary uses. Class F fly ash may act
as an excellent scrubber and fixation reagent for highly acidic wastes,
which might also contain several toxic trace elements. This paper
evaluates the potential of using Class F fly ashes (<20% CaO),
in combination with excessive fines from the limestone quarry industry
as a fixation reagent. The analysis included leaching experiments
(EN12457–2) and several analytical techniques (ICP, SEM, XRD,
etc.), which were used in order to investigate the fixation procedure.
The fine sludge is used as a partial substitute in concrete that can
be used in civil engineering projects, as it an environmentally safe
product