title: Dioxin emissions after installation of a polishing wet scrubber in a hazardous waste incineration facility.
abstract: Dioxin levels measured after wet scrubbing systems have been found to be higher than levels measured before the scrubber. It is believed that there is an adsorption of PCDD/Fs on plastic materials in the scrubber. The PCDD/F levels after a polishing wet scrubber were followed continuously for 18 months using long-time sampling equipment at a hazardous waste incineration facility in Sweden. Each sampling period lasted two weeks. It was found that the levels during and shortly after start-up periods were elevated. The decline was very slowly, which supports a memory effect in the scrubber. Further, a multivariate model showed that the relation between different homologues changed over time, which is in agreement with a desorption model, taking into account the vapour pressures for different congeners.
authors.affiliation: Department of Natural Sciences, Man-Technology-Environment Research Centre, Orebro University, SE-701 82 Orebro, Sweden. carl-johan.lothgren@sakab.se
authors.forename: Carl-Johan
authors.initials: CJ
authors.lastname: Löthgren
authors.forename: Bert
authors.initials: B
authors.lastname: van Bavel
mesh_terms: D000327:Adsorption; D000393:Air Pollutants / Q000032:analysis* / Q000302:isolation & purification; D000397:Air Pollution / Q000517:prevention & control*; D004147:Dioxins / Q000032:analysis* / Q000302:isolation & purification; D005374:Filtration; D006256:Hazardous Waste; D017745:Incineration; D008962:Models, Theoretical; D013548:Sweden; D014867:Water
chemical_list: D000393:Air Pollutants; D004147:Dioxins; D006256:Hazardous Waste; D014867:Water