Lowering AOX Levels in the Bleach Plant, 1991 Pulping Conference Proceedings

N. Liebergott, B. van Lierop, B. I. Fleming--The options available to decrease the AOX in bleach plant effluent include removing as much of the lignin from the pulp before the bleaching process, using chlorine dioxide instead of molecular chlorine in the chlorination stage, adjusting the C12-C1O2 addition strategy so that the chlorine is added first in the chlorination stage, and combining the above alternatives. Other emerging technologies are enzyme treatment of the brownstock which decreases the chlorine requirement, more extensive use of the peroxide in the bleaching sequence, and ozone delignification.

Author: Liebergott, N., van Lierop, B., Fleming, B.I.
Lowering AOX Levels in the Bleach Plant, 1991 Pulping Confer
Lowering AOX Levels in the Bleach Plant, 1991 Pulping Conference Proceedings
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