Treatment of pulp and paper wastewater with reducing agent...

Details Treatment of pulp and paper wastewater with reducing agent... Treatment of pulp and paper wastewater with reducing agent...

C - Chemistry, Metallurgy

07

C

C07C 43/04 (2006.01) C02F 1/54 (2006.01) C02F 1/56 (2006.01) C02F 1/58 (2006.01) C02F 1/70 (2006.01) C02F 3/12 (2006.01) C07C 41/01 (2006.01)

Patent

CA 2131240

ABSTRACT OF THE DISCLOSURE A process for removing color from a pulp and paper wastewater which comprises the following steps: (a) treating the wastewater with a reducing agent which is capable of inactivating color producing functional groups of the wastewater; and (b) treating the wastewater subsequent to step (a) with a polymer which is capable of removing color from the wastewater.

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