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PAPER FIBERS AS A CARBON SOURCE FOR THE DE NOVO FORMATION OF POLYCHLORINATED DIOXINS AND FURANS
Citation:
LEE, C. W. AND T. IMAGAWA. PAPER FIBERS AS A CARBON SOURCE FOR THE DE NOVO FORMATION OF POLYCHLORINATED DIOXINS AND FURANS. Journal of Material Cycles and Waste Management. Springer Japan KK, Tokyo, Japan, 8(2):133-139, (2006).
Description:
Formation of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzefurans (PCDDs/Fs) from carbons that were produced from pyrolysis of paper fibers and from a wood charcoal was investigated experimentally. Fibers obtained from a filter paper were pyrolyzed at 300 and 800 degrees C to produce the low- and high-temperature carbons separately. The two carbons and a wood charcoal were mixed with silica (SiO2) and trace copper oxide (CuO) to produce three synthetic fly ash samples. Experiments for measuring the formation of PCCDs/Fs from the three ash samples were conducted using a bench scale reactor. The two carbons derived from paper fibers generated more PCDD/Fs than those generated by the wood charcoal. The PCDDs/Fs generated by low-temperature carbon and by the wood charcoal are dominated by the lower chlorinated PCDFs. Such unique homologue distribution patterns are very similar to those generated by open burning of household waste. The high temperature carbon generated more highly chlorinated PCDDs/Fs. The effect of pyrolysis temperature on the de novo formation of PCDDs/Fs from residue carbon is discussed. Paper and paper products contained in household waste are likely to provide the source of unburned carbon that contribute to high PCDD/F emissions in open burning of household waste.