ENZYME TREATMENT OF WOOD PULP

摘要

A method for processing wood chips involves using a combined fungus/enzyme process in which the enzymes are produced in situ. In a first step (300), wood chips are biopulped by treated them with a lignin-degrading fungus. Next (310), the enzymes produced by the fungus are extracted from the wood chips in the form of a crude broth. The enzymes are then concentrated in a liquid mixture (320). After the wood chips are refined to a coarse pulp, e.g., by mechanical pulping (330), the concentrated enzyme mixture is used to treat the pulp prior to completing the refining process (340). The expected benefits are energy savings and property improvements.