Advanced Technologies in Pulping, Detrashing and Coarse Screening Make the Difference for OCC and Mixed Waste Systems, 1999 Pulping Conference Proceedings
Dr.-Ing. Frank P. Meltzer
Voith Sulzer Paper Technology
The OCC recovery rate is rapidly approaching the practical limit of an estimated 75%. Other fiber sources, e.g. Old Newspaper and Mixed Paper are already used for the production of some board and packaging grades 1 . We know that both these developments lead to a deterioration of overall fiber quality and a significant increase of contaminants entering the mills with the raw material. Improvements are required for the process in order to maintain capacity and product quality.