关键词: incineration;industrial waste;cement rotary kiln;rotary kiln incinerator;clinker

Abstract: Destruction of industrial waste in cement rotary kilns (CRKs) is an alternative technology
for thetreatment of certain types of industrial waste (IW). In this paper, three typical
types of industrial wastes wereco-incinerated in the CRK at Beijing Cement Plant to
determine the effects of waste disposal (especially solid wastedisposal) on the quality of
clinker and the concentration of pollutants in air emission. Experimental results showthat
(1) waste disposal does not affect the quality of clinker and fly ash, and fly ash after
the IW disposal can still beused in the cement production, (2) heavy metals from IW are
immobilized and stabilized in the clinker and cement,and (3) concentration of pollutants in
air emission is far below than the permitted values in the China NationalStandard-Air
Pollutants Emission Standard (GB 16297-1996).

Key words: incineration, industrial waste, cement rotary kiln, rotary kiln incinerator, clinker