Environmental Aspects of Washing - Water Quality, 1997 Pulping Conference Proceedings
Bleached Washer Performance Impacts:
•AOX
• Chlorinated Phenols
• Chloroform
• Dioxins
• Final Pulp Brightness
• Methods to Reduce Formation of Dioxins and Furans in Bleach Plant Effluents
• Chlorine Dioxide Substitution
• Eliminate Chlorine Bleaching
• Split Addition/pH Control
• Improve Control and Mixing in C-Stage
• Choose Defoamers Carefully
• Lower Incoming Kappa Number
• Improve Brownstock Washing
Unbleached Washer Performance Impacts:
• Effluent Color
• Total Organic Loading
• Odor
• Charge Balance on Unbleached Machines