Method for treating liquid waste after pulp bleaching

C - Chemistry – Metallurgy – 12 – S

Patent

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Details

C12S 3/00 (2006.01) C02F 3/12 (2006.01) C02F 3/34 (2006.01) C12P 1/02 (2006.01) D21C 11/00 (2006.01)

Patent

CA 2098279

?TRACT OF THE DISCLOSURE The liquid waste after pulp bleaching can be treated by using a microorganism having lignin degradation activity and having been pre-cultured in a culture medium supplemented with the liquid waste after pulp bleaching and/or lignin related substances, the cultured products thereof and/or the treated products thereof. The scarcely degradable colored ingredients and/or chlorinated phenols contained in the liquid waste after pulp bleaching can be decomposed and removed, whereby the efficient treatment of the liquid waste after pulp bleaching can be achieved. 14

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