Method of pulping wood chips with a fungi using sulfite salt-tre

Details Method of pulping wood chips with a fungi using sulfite salt-tre Method of pulping wood chips with a fungi using sulfite salt-tre

1994-06-10

1995-10-24

Alvo, Steve

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Treatment with particular chemical

162 83, 435278, D21C 312, D21C 320

Patent

active

054606977

ABSTRACT:
A method of making a wood pulp is disclosed. Wood is first chipped into wood chips. The wood chips are treated with an amount of sulfite salt sufficient to inhibit indigenous microorganism growth. The treated wood chips are introduced into a bioreactor and inoculated with a culture of white-rot fungus. The wood chips are incubated under conditions favoring the propagation of white-rot fungus and then mechanically pulped.

REFERENCES:
patent: 3393122 (1968-07-01), Marshall
patent: 3617436 (1968-07-01), Sundasen
patent: 5055159 (1991-10-01), Blanchette et al.
Akhtar, et al., "Biomechanical Pulping of Loblolly Pine Chips with Selected White-Rot Fungi," Forest Products Laboratory article (1992).
Akhtar, et al., "Biomechanical pulping or loblolly pine with different strains of the white-rot fungus Ceriporiopsis subvermispora," Biomechanical Pulping 105-109 (Feb. 1992 Tappi Journal).
Lamar and Dietrich, "In Situ Depletion of Pentachlorophenol from Contemainated Soil by Phanerochaete spp.," Applied and Environmental Microbiology, Oct. 1990, pp. 3093-3100.
Leatham, et al., "Biomechanical pulping of aspen chips: energy savings resulting from different fungal treatments," Energy Savings, 197-200 (May 1990 Tappi Journal).
Myers, et al., "Fungal pretreatment of aspen chips improves strength of refiner mechanical pulp," Biopulping, 105-108 (May 1988 Tappi Journal).

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