TY - JOUR
T1 - Estimation of the dioxin emission (PCDD/FI-TEQ) from the concentration of low chlorinated aromatic compounds in the flue and stack gas of a hazardous waste incinerator
AU - Blumenstock, M.
AU - Zimmermann, R.
AU - Schramm, K. W.
AU - Kaune, A.
AU - Nikolai, U.
AU - Lenoir, D.
AU - Kettrup, A.
N1 - Funding Information:
We thank the Deutsche Bundesstiftung Umwelt, Osnabrück, Germany for financial support.
PY - 1999/2
Y1 - 1999/2
N2 - The concentrations of hexa- and pentachlorobenzene in the flue gases of waste incinerators are known to be strongly correlated with the emission of polychlorinated dibenzo-p-dioxins/furans PCDD/F, measured in international toxicity equivalents, I-TEQ. In this work it was investigated whether polychlorinated benzenes (PCBz) with a lower degree of chlorination and mono- and dichlorinated dibenzo-p-dioxins/furans can be used for estimation of the dioxin emission (I-TEQ) in the flue gases of hazardous waste incinerators (HWI). The HWI process consists of a primary oxidative pyrolysis step in a rotary kiln followed by a post-combustion of the pyrolysis gases. The investigation indicated, that lower chlorinated PCDD/F homologues are very weakly correlated with the dioxin emission (I-TEQ) and thus are probably not useful as indicator parameters. In contrast to this finding, mono- to trichlorobenzenes are present in relatively high amounts in flue and stack gases and are correlated with the PCDD/F I-TEQ value. The mono- to dichlorinated benzenes can be readily detected by a laser mass spectrometric technique (REMPI-TOFMS) and thus are candidates for a direct on-line measurement in the flue gas and a continuous, indirect monitoring of the dioxin emission.
AB - The concentrations of hexa- and pentachlorobenzene in the flue gases of waste incinerators are known to be strongly correlated with the emission of polychlorinated dibenzo-p-dioxins/furans PCDD/F, measured in international toxicity equivalents, I-TEQ. In this work it was investigated whether polychlorinated benzenes (PCBz) with a lower degree of chlorination and mono- and dichlorinated dibenzo-p-dioxins/furans can be used for estimation of the dioxin emission (I-TEQ) in the flue gases of hazardous waste incinerators (HWI). The HWI process consists of a primary oxidative pyrolysis step in a rotary kiln followed by a post-combustion of the pyrolysis gases. The investigation indicated, that lower chlorinated PCDD/F homologues are very weakly correlated with the dioxin emission (I-TEQ) and thus are probably not useful as indicator parameters. In contrast to this finding, mono- to trichlorobenzenes are present in relatively high amounts in flue and stack gases and are correlated with the PCDD/F I-TEQ value. The mono- to dichlorinated benzenes can be readily detected by a laser mass spectrometric technique (REMPI-TOFMS) and thus are candidates for a direct on-line measurement in the flue gas and a continuous, indirect monitoring of the dioxin emission.
UR - http://www.scopus.com/inward/record.url?scp=0032679460&partnerID=8YFLogxK
U2 - 10.1016/S0165-2370(98)00110-7
DO - 10.1016/S0165-2370(98)00110-7
M3 - Conference article
AN - SCOPUS:0032679460
SN - 0165-2370
VL - 49
SP - 179
EP - 190
JO - Journal of Analytical and Applied Pyrolysis
JF - Journal of Analytical and Applied Pyrolysis
IS - 1
T2 - Proceedings of the 1998 13th International Symposium on Analiyical and Applied Pyrolysis, PYROLYSIS-98
Y2 - 18 May 1999 through 20 May 1999
ER -
