The incineration tests of mixed industrial wastes using the stoker type incinerator are carried out to investigate the partitioning characteristics of heavy metals during incineration. The results obtained from this study are as follow.
The partitioning characteristics of heavy metals throughout this incinerator are found that, at given condition of 700℃, the elements with the relatively high boiling point such as Cr, Cu and Pb are partitioned into a bottom ash, a fly ash captured by cyclone, and a flue gas stream, 67∼88%, 2∼19% and 6∼16% of initial amount entering the incinerator, respectively, but the Cd and Hg of 75∼81% is vaporized into the flue gas. It appears that the partitioning characteristics according to the particle size of ash is different between the bottom ash and the fly ash. For bottom ash, the fraction of partitioning into 75㎛ oversized particles is relatively high. For fly ash, the characteristics of distributions with the particle size can not be clearly shown.

• 박용이(제주대학교 해양환경공학과) | Yong-Yi Park
• 허철구(제주대학교 해양환경공학과) | Chul-Goo Hu