title: Reduction of PCDD, PCDF and PCB during co-combustion of biomass with waste products from pulp and paper industry.
abstract: The use of waste wood as an energy carrier has increased during the last decade. However, elevated levels of alkali metals and chlorine in waste wood compared to virgin biomass can cause increased deposit formation and higher concentrations of organic pollutants. In this study, we investigated the effect of the ChlorOut technique on concentrations of organic pollutants. Ammonium sulfate was injected into the combustion system to inhibit formation of KCl (which causes deposits) and persistent organic pollutants, namely polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs) and biphenyls (PCBs). The results showed that concentrations of the toxic congeners of PCDD, PCDF and PCB decreased in the presence of ammonium sulfate.
authors: Umeå University, Department of Chemistry, Sweden. lisa.lundin@chem.umu.se
authors: Lisa
authors: L
authors: Lundin
authors: Maria Francisca
authors: MF
authors: Gomez-Rico
authors: Christer
authors: C
authors: Forsberg
authors: Carl
authors: C
authors: Nordenskjöld
authors: Stina
authors: S
authors: Jansson
mesh_terms: D000645:Ammonium Sulfate / Q000737:chemistry; D001572:Benzofurans / Q000737:chemistry; D056804:Biofuels; D018533:Biomass; D000072338:Dibenzofurans, Polychlorinated; D006571:Heterocyclic Compounds / Q000737:chemistry*; D007220:Industrial Waste; D010209:Paper; D011078:Polychlorinated Biphenyls / Q000737:chemistry; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives / Q000737:chemistry; D012037:Refuse Disposal / Q000295:instrumentation*
chemical_list: D001572:Benzofurans; D056804:Biofuels; D000072338:Dibenzofurans, Polychlorinated; D006571:Heterocyclic Compounds; D007220:Industrial Waste; D000072317:Polychlorinated Dibenzodioxins; D011078:Polychlorinated Biphenyls; D000645:Ammonium Sulfate