Through fluidizedbed incineration test

it has been mainly observed that the incineration temperature and additives (such as CaO and NaCl) upon the residual behavior and solidification rate of heavy metals (such as Cu

Zn

Pb

Cr

Ni and Cd) in the process of sludge incineration

to find out the migration regularity of the said heavy metals in bottom ash of incineration. Results of study show that the addition of NaCl leads the solidificatin rate of many heavy metals to decrease

explaining the increase of Cl content may hinder heavy metals to migrate into bottom ash during the course of incineration. But for Ni

the said influence isn't obvious along with the rising of temperature

the sequence of six heavy metals' solidification rate to be as follows; PbCuCrNiCdZn

this is an obvious negative correlation to their volatility.