Recovering pulp mill chlorine dioxide emission

Details Recovering pulp mill chlorine dioxide emission Recovering pulp mill chlorine dioxide emission

D - Textiles, Paper

21

C

D21C 9/14 (2006.01) B01D 53/34 (2006.01)

Patent

CA 2078308

Chlorine dioxide in vent gases from a pulp mill is scrubbed into an aqueous alkaline solution con- taining hydrogen peroxide and reduced to sodium chlorite. The solution of sodium chlorite is incor- porated into a chlorination, chlorine dioxide or chlorine dioxide/chlorination stage to convert the sodium chlorite to chlorine dioxide in situ.

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