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PCDD/F in the paper industry. New results and mass balances

: Gruber, L.; Stöhrer, E.; Santl, H.

Austria, Federal Environmental Agency, Vienna:
Dioxin '93 - Short papers. Organohalogen compounds. Vol.11
Vienna, 1993
ISBN: 3-85457-129-1
International Symposium on Chlorinated Dioxins and Related Compounds (Dioxin) <13, 1993, Vienna>
Fraunhofer ILV ( IVV) ()
formation; mass balance; paper industry; PCDD; PCDF; polychlorinated dibenzodioxin; polychlorinated dibenzofuran; pulp industry

An extensive investigation about the input, formation and fate of polychlorinated dibenzodioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in the pulp and paper industry has been carried out. A great number of samples have been taken in 13 pulp and paper mills and about 200 PCDD/F analyses of raw materials, intermediates, final products as well as stock additives, waste waters and sludges were made. In the paper and board manufacturing process no formation of PCDD/F has been found, this statement is also valid for the deinking process of wastepapers. No evaporation of PCDD/F could be observed in the dryer section of the paper machine. The main input of PCDD/F in the production of papers containing only primary fibers is the imported chlorine bleached kraft pulp. PCDD/F mass balances for paper mills producing wastepaper-containing papers and cardboards showed the wastepaper as the main input. In some cases special stock additives are another small source of PCDD/F-input.