Study on the evolution and transformation of chlorine during co-processing of hazardous waste incineration residue in a cement kiln

Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA
Hongmei ZhuJian-Hua Yan

Abstract

The co-processing of hazardous waste in a cement kiln can eliminate a large quantity of hazardous wastes, but the excessive existence of chlorine will affect not only the operation of a cement kiln but also the quality of cement products. In this study, the mixtures of hazardous waste incineration residue and raw meal were incinerated in a high temperature tubular furnace. The distribution ratio of chlorine in flue gas, clinker and fly ash under different experiment conditions was obtained and the influence of the co-processing conditions on chlorine evolution and transformation was studied. The results showed that chlorine mainly existed in flue gas and clinker, and only less than 1% of chlorine existed in fly ash. The incineration temperature had a significant influence on the distribution of chlorine. The higher the incinerating temperature, the greater the distribution ratio of chlorine in flue gas and fly ash. The proportion of chlorine in all parts remained basically unchanged while the temperature was higher than 1300°C. With the increase of the retention time, the proportion of chlorine released into the flue gas increased. The distribution ratio of chlorine in each part remained unchanged after about 30 minutes. There ...Continue Reading

References

Mar 21, 2008·Journal of Hazardous Materials·Huabo DuanJinhui Li
Sep 21, 2011·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Xiaoming Liu, Na Zhang
Jan 29, 2014·The Science of the Total Environment·Dahai YanZuguang Wang
Jun 20, 2014·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·R SarcE M Sipple
Jan 15, 2016·Waste Management·Yafei ShenMindong Chen
Jul 4, 2016·Journal of Environmental Management·Ozge YilmazUlku Yetis

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