How does the SinoBios enzyme apply to deinking of waste paper?
The basic technology to recycle waste paper is a relatively straightforward process. The cellulosic fibers can readily be separated by repulping and cleaning, and made into new paper. The majority of the fillers and binders used in the original paper can be easily extracted during reprocessing. The residual printing inks and adhesives are the components which are most difficult to remove. Historically, caustic surfactants and large quantities of wash water are used to separate the ink from the cellulosic fibers. A large quantity of chemicals and wash water can be dramatically reduced by the use of the enzymes cellulase and hemicellulase. These enzymes are able to hydrolyze some of the linkages that entrap the ink. Environmental Benefits: improved deinking creates more opportunities for recycled paper, less chemical discharge to waste streams, less wash water use, decreased load on landfills and better utilization of natural resources.
