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Co-combustion of dried waste activated sludge (WAS) and lignite was conducted in a horizontal tube furnace system. The mineral transformation and emission behaviors of Cd, Cr, Ni, Pb, and Zn during combustion were examined. The above heavy metals (HMs) were selected because they are more abundant in WAS than in lignite. In the combustion condition of 1000°C–21% O2–30min, the minerals in lignite ash...
To explore the feasibility of co-combustion of lignite and wasted activated sludge (WAS) and examine their synergistic effects, combustion of lignite–WAS blend at a mass ratio of 90:10 in a horizontal tube furnace was conducted. Results showed that the synergistic effects occurred between lignite and WAS during their co-combustion because the actual conversion ratio of combustible substances (CR)...
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