Resin and Fatty Acids Removal from Pulp Mill Sewers Using Flotation, 2003 Environmental Conference Proceedings

The sewers of an integrated paper mill in the Southeastern U.S. were analyzed for resin and fatty acids (RFAs) and the process parameters of temperature, pH, and flow rate were measured. Two sources were found to contribute approximately 30% of the total RFA load to primary treatment. These sewer streams were then used in laboratory flotation studies to examine resin and fatty acid removal efficiency. RFA concentration was removed by 30%, on average, and two mechanisms were determined. RFAs partitioned to total suspended solids (TSS) and were removed by solids concentration in the foam. Foam concentrates were between 0.4 and 0.8 %, on a volume basis. This paper focuses on the removal of RFAs attached to suspended solids. In addition, a kinetic model for solids removal was applied for the bubbly flow regime, and predictions were compared to experimental results.

Author: Makris, S. P., Banerjee, S.
Resin and Fatty Acids Removal from Pulp Mill Sewers Using Fl
Resin and Fatty Acids Removal from Pulp Mill Sewers Using Flotation, 2003 Environmental Conference Proceedings
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