Rapidly growth of organic solid waste(OSW) has caused serious social and environmental issues. Cocombustion is an economical and environmental method to treat OSW. However

there will be a variety of heavy metals discharged with flue gas during combustion as OSW contains them. Therefore

this study conducted an experiment on the migration of heavy metals and generation of micro particles during the co-combustion of OSW and lignite. The results show that

the release of heavy metals during combustion not only depends on the concentration of heavy metal the fuel contains

but also on the chemical mechanism at high temperature. The content of Pb

Cd and As in the flue gas of blending fuel is obviously lower than that of sole OSW

but Cu

Zn

Co and Mn shows opposite tendency. In addition

the particle size distribution of the four fuels all shows a normal distribution at 800 ℃ and 850 ℃

but large particle size generates when the combustion temperature rises to 900 ℃.