By-stream upgrading and processing

In different steps in the pulp and paper production processes, reject streams have to be treated and/or discarded as waste material. Research on by-streams at Wageningen UR is focussed on creating commercial value for these liquid and solid by-streams. Example possibilities are reusing lignin from black liquor from the pulp industry as a natural binder and creating added value for rejects from the recycled paper industry by processing coarse rejects (containing fibres and plastics) into fibre reinforced composites.