Process for color removal from paper mill wastewaters

Details Process for color removal from paper mill wastewaters Process for color removal from paper mill wastewaters

1994-07-20

1996-06-25

Hruskoci, Peter A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

162189, 210721, 210724, 210737, 210758, 210760, 210766, 210917, 210919, 210928, C02F 152

Patent

active

055296971

ABSTRACT:
Potassium permanganate is added to paper mill wastewater streams at an elevated temperature to remove color compounds from the effluent streams. The potassium permanganate causes the formation of flocculant particles which are precipitated out of the stream. This precipitate is then treated with acid to cause resolubilization.

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Parthasarathy, V. R., et al, "Decolourization of Pulp and Paper Mill Effluents", Int. Sem. Mgmt. Envir. Problems Pulp Paper Ind. (New Delhi), pp., 139-159, Feb. 24-25, 1982.

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