Evaluation of gas-particle partition of dioxins in flue gas II: estimation of gas-particle partition of dioxins in dust-rich flue gas by parallel sampling with different conditions

Journal of Hazardous Materials
Naoki YokohamaMunetaka Nakata

Abstract

For an accurate determination of the gas-particle partition of polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs) and dioxin-like biphenyls (DLPCBs) in dust-rich flue gas, a parallel monitoring procedure with an isokinetic and a non-isokinetic train was used. For four flue gas samples, the two trains gave a significantly different weight of the collected fly ash particles despite the equal gas volume sampled. On the basis of the quantitative values of PCDD/F and DLPCB homologues and the weight of the collected particles, ratios of each homologue in the real flue gas samples in gaseous form were predicted using simultaneous equations. For the four flue gas samples examined, the predicted gaseous ratios were considerably higher that those calculated using a previously reported equation, suggesting that there are some properties which affect partitions of PCDD/Fs in flue gas besides their saturation vapor pressures and fly ash concentration. The partitions for higher temperature flue gases obtained by fractional determinations of each collection device were additionally different from those predicted by the parallel collection, indicating that conventional determination by fractional measurements is subjected to larg...Continue Reading

References

Jul 1, 1993·Archives of Environmental Contamination and Toxicology·C S HongH Qiao
Feb 7, 2002·Chemosphere·K Everaert, J Baeyens
Jan 24, 2003·Journal of the Air & Waste Management Association·K EveraertJ Degrève
Apr 12, 2003·Environmental Science & Technology·K EveraertJ Degrève
Dec 9, 2003·Chemosphere·Ulrich QuassGünter Bröker
Nov 22, 2005·Environmental Science & Technology·Kai Hsien Chi, Moo Been Chang
Mar 31, 2006·Environmental Science & Technology·Kai Hsien ChiMoo Been Chang

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