Session 3: Biomass Processing and Conversion Pathways
Tuesday, November 3rd • 3:15pm ‐ 4:45pm
Session Chair: Jean‐Pierre Bousquet, Valmet
Title: Pellets Production Using Sludge From Pulp Mill
Presenter: Bruna Virgínia Cunha Rodrigues, Cláudio Mudadu Silva, Angélica de Cássia Oliveira Carneiro, Caio Moreira Miquelino Eleto Torres, Mateus Alves de Magalhães, Universidade Federal de Viçosa
In recent years, Brazil’s pulping industry has expanded significantly which has resulted in increased waste generation. Traditionally, primary and secondary sludge, major solid waste of pulp and paper mills, is disposed in industrial landfills but establishing novel forms of treatment and reuse of these materials can have both economic and environmental benefits. One such option is thermochemical conversion of the sludge which generates ash and steam. Ash has a smaller volume than the sludge resulting in easier transport and disposal. Steam can be used as energy in the mill. Sludge can also be made into pellets which have a high heating value and better handling condition.
Attendees will a case study on using primary and secondary sludge from the effluent treatment plant of a eucalyptus bleached kraft pulp mill to produce of pellets for energy purposes. The primary sludge was sourced from the primary clarifier and the secondary sludge from an activated sludge. These pellets resulted in viable heating value characteristics and chemical composition for energy production in the mill and a significant landfill disposal reduction thus optimizing space and reducing costs for the industry.
Additional Session Presentations:
The Relationships Between the Forest Biomass Compositions and Pyrolysis Performances
Sudhagar Mani, University of Georgia
Sandwich Belt High Angle Conveyors in Harmony with the Environment
Joseph Dos Santos, Dos Santos International
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