process for the production of fasterstoff from papierabfaellen with high level of pollution

摘要

A process and equipment for producing a secondary fibre material from heavily soiled paper wastes, for example waste paper recovered from refuse, which fibre material passes through a pulping device and preliminary sorting as well as draining, for example, to the papermachine, in a closed working process are disclosed. In order to eliminate interfering materials, the pulping (3), preliminary sorting (4) and draining (5) are arranged according to the invention as a cold circulation (1). In this case, the press water from draining (5) is passed to an effluent treatment plant (6) and the useable water is recycled as dilution water into pulping (3). IMAGE