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Emission of heavy metals from animal carcass inc… [Chemosphere. 2004] – PubMed – NCBI

So you are what you eat, clank clank
Chemosphere. 2004 Jun;55(9):1197-205.

Emission of heavy metals from animal carcass incinerators in Taiwan.

Chen SJ, Hung MC, Huang KL, Hwang WI.


Department of Environmental Engineering and Science, National Pingtung
University of Science and Technology, Nei Pu, Pingtung 91201, Taiwan.


The metal emissions from three incinerators burning different feedstock in
Taiwan were characterized in this study. It was found that the Incinerators
A and B, treating pig carcasses and animal (including pigs) carcasses,
respectively, had much higher metal concentrations in stack flue gases than
Incinerator C that combusted medical wastes. However, Incinerator A
obtained relative lower metal contents in fly ash and bottom ash than the
other two incinerators, mainly because the former used a much lower
feedstock rate (although burning at a lower temperature) than the latter.
For all the incinerators, (1) Fe, Ni, Pb, and Zn were dominant in both the
fly ash and bottom ash while most of the Cd and Pb (more volatile) were
present in the fly ash; (2) Fe emission factor was the highest and
Zn/Pb/Ni/Cr emission factors were greater than those of Mn/Cd/Cu; (3) the
Cu emission factors in bottom ash were relatively higher in comparison with
those in fly ash; and (4) indicatory metals were the same (Fe, Zn, Pb, and
Cu). The metal emission factors obtained from the livestock incinerators
were much higher than those reported from MSW incinerators. Likewise,
crematories that burn human cadavers must create similar pollution issues
since metal supplements are part of human’s normal diets. This causes an
environmental concern and this work has important ramifications both in
technical and regulatory decisions.

Copyright 2004 Elsevier Ltd.

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