title: Online measurements of low-volatile organic chlorine for dioxin monitoring at municipal waste incinerators.
abstract: In this study, an automatic sampling device and an analysis device have been developed for the measurement of low-volatile organic chlorine (LVOCl) in flue gas. The concentrations of dioxins (polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, and dioxin-like polychlorinated biphenyls) have been estimated by online measurements of LVOCl at a municipal solid waste incinerator (MSWI) using these devices. The LVOCl concentration at the outlet of the selective catalyst reactor (SCR) of the MSWI increased momentarily up to 95 μg Cl m(-3) during the startup period of the MSWI; subsequently, it gradually decreased to less than 1.0 μg Cl m(-3) after 50h from the start of waste feeding. The concentration of toxic equivalent quantity (TEQ)-Dioxins at the SCR outlet had a linear positive relationship with the LVOCl concentrations. Moreover, the level of TEQ-Dioxins concentration can be estimated by using this relationship with LVOCl. From our results, since the LVOCl concentrations in a flue gas can thus be automatically analyzed every hour by online measurements, the operators of an MSWI would be able to monitor approximate TEQ-Dioxin emissions on a daily basis.
authors: Technology Development Center, Electric Power Development Co, Ltd., 6-15-1 Ginza, Chuo-ku, Tokyo 104-8165, Japan. hiroyuki_nakui@jpower.co.jp
authors: Hiroyuki
authors: H
authors: Nakui
authors: Hiroki
authors: H
authors: Koyama
authors: Akito
authors: A
authors: Takakura
authors: Nobuhisa
authors: N
authors: Watanabe
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D001572:Benzofurans / Q000032:analysis; D002713:Chlorine / Q000032:analysis*; D000072338:Dibenzofurans, Polychlorinated; D004147:Dioxins / Q000032:analysis*; D004784:Environmental Monitoring / Q000295:instrumentation* / Q000379:methods*; D004867:Equipment Design; D017745:Incineration / Q000379:methods*; D009862:Online Systems; D011078:Polychlorinated Biphenyls / Q000032:analysis; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives / Q000032:analysis; D012037:Refuse Disposal / Q000379:methods
chemical_list: D000393:Air Pollutants; D001572:Benzofurans; D000072338:Dibenzofurans, Polychlorinated; D004147:Dioxins; D000072317:Polychlorinated Dibenzodioxins; D002713:Chlorine; D011078:Polychlorinated Biphenyls