Effects of natural and modified calcium-based sorbents on heavy metals of food waste under oxy-fuel combustion.

Performance of natural and modified calcium-based sorbents for heavy metals for food waste under oxy-fuel combustion in a lab-scale tubular furnace was carried out. The effects of furnace temperature, sorbents type, and CO/O ratio on adsorption of heavy metals were investigated. Increasing the furnace temperature helped fixing Al in the bottom ash, but increased the volatilization of Zn.

The volatilization of heavy metals during co-combustion of food waste and polyvinyl chloride in air and carbon dioxide/oxygen atmosphere.

The volatilization of three heavy metals (Cd, Cr and Zn) during food waste and PVC and their blending combustion in N/O or CO/O atmosphere in a lab-scale tubular furnace was investigated. The concentration of heavy metals in combustion ash was decreased with the increment of furnace temperature in most cases. The replacement of 80N/20O by 80CO/20O decreased the volatilization rate of Cd and Cr, but increased Zn.