437372 Model of Ink Particle Separation in Column Flotation Deinking

Tuesday, November 10, 2015: 8:30 AM
250C (Salt Palace Convention Center)
Alak Bandyopadhyay, Computer Science, Alabama A&M University, Normal, AL and Bandaru V. Ramarao, Paper and Bioprocess Engineering, ESPRI, SUNY College of Environmental Science and Forestry, Syracuse, NY

Column flotation is a novel technique of separation of hydrophobic particles from a suspension. An experimental investigation of column flotation as applied to de-inking of a 50-50 mix of photocopier and laser-print waste paper is described. Experiments were conducted in both the batch and the continuous mode of operation.  Hand-sheets were made from the de-inked pulp and the brightness and ink particle size distributions were measured. The kinetic constants for de-inking were determined for the continuous modes.   A comparison between the laboratory scale column flotation and other flotation deinking methods is evaluated and modeling of the process described.

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See more of this Session: Separation Processes in Biorefineries
See more of this Group/Topical: 2015 International Congress on Energy