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The pilot-scale thermal treatment experiment of municipal solid waste incinerator fly ash was carried out by swirling melting furnace. The melting characteristics of fly ash were examined in terms of chemical composition, mineralogy, morphology, leaching behavior of heavy metals. The experimental results indicate that the fly ash mainly consists of silicates, and major crystalline phases of fly ash...
Intends to explore the mechanism of mineral formation of calcium-enriched fly ash. Low-sulphur Yanzhou coal was selected as experimental coal, and experiments of characteristic of mineral component of calcium-enriched fly ash were conducted on two-stage poly-phase reaction setup. The collected fly ash samples were analyzed by X-ray diffraction. The results showed that crystal mineral of fly ash of...
The partition characteristics of heavy metals during melting process of MSWI fly ash was carried out using a microscale furnace between 1100 and 1400??C under different melting time and basicity conditions. Experimental results indicated that the fixation rates of Ni, Cr, Cu and As were up to the maximum at 1200??C. This is attributed to inorganic materials in solid residue took place chemical reaction...
Melting treatment is an efficient for heavy metal stabilization in MSW fly ash. The fly ashes from co-firing of municipal solid waste and coal incinerator were melted in the swirling melting furnace system under various temperatures. The melting characteristics and behavior of heavy metals of fly ashes were investigated in detail under different melting temperatures. The results showed that the melting...
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