Process of treating effluent from a pulp or papermaking operatio

Details Process of treating effluent from a pulp or papermaking operatio Process of treating effluent from a pulp or papermaking operatio

1984-05-29

1987-04-07

Wyse, Tom

Liquid purification or separation

Processes

Treatment by living organism

210619, 210928, 210911, 435262, 162 29, C02F 334

Patent

active

046559264

ABSTRACT:
A process of treating effluent from a pulp or paper-making operation to decolorize the effluent is provided in which a white-rot fungus is germinated and grown and is then induced into a secondary metabolic state. The white-rot fungus is then immersed in the effluent where the fungus' active ligninolytic system decolorizes the effluent. The rate of fungal activity and the active lifetime of the fungus is increased by the addition to the effluent of at least one member of the class consisting of nutrient nitrogen, nutrient minerals, and a detergent.

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Chang et al, "Fungal Decolorization of Bleach Plant Effluents", 1983, UNI Publishers, Japan.
Gabriel Sundman, T. Kent Kirk & Hou-min Chang; Fungal Decolorization of Kraft Bleach Plant Effluent: Fate of the Chromophoric Material; Mar. 1981; pp. 1-5.
David C. Eaton, Hou-min Chang, Thomas W. Joyce, Thomas W. Jeffries and T. Kent Kirk; The FPL/NCSU Mycor Process for Treatment of Bleach Plant Effluents; Mar. 1981; pp. 1-5.
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T. Kent Kirk and Wayne E. Moore; Removing Lignin from Wood with White-Rot Fungi and Digestibility of Resulting Wood; Jan. 1972, pp. 72-79.
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