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Considerations in managing wastewater odor at pulp and paper operations, TAPPI Journal March 2022
ABSTRACT: Many pulp and paper mills are, at least periodically, faced with the release of odors that can migrate offsite and be considered a nuisance by nearby residents. At chemical pulp mills, perceptible odors associated with reduced sulfur compounds (RSCs) are common, many of which are highly perceptible owing to their low odor thresholds. As releases of RSCs and other odorous substances from production processes are progressively controlled, the proportional contribution from wastewater treatment systems to areal odors can increase. This review paper summarizes important fundamentals of odor generation, source identification, and control. Common odorous substances are identified, and mechanisms for their generation are summarized. Approaches for measuring odorous substances are detailed to enable more effective management, and various odor control strategies are discussed.
Journal articles
Magazine articles
Utilization of palm fiber as papermaking materials: Microscopic structure and chemical pulping, TAPPI Journal October 2022
ABSTRACT: The microscopic structure and pulping properties of palm fiber were explored. Soda cooking and sulfate cooking were conducted and compared in terms of physical strength of the obtained pulps. Sulfate pulp showed better performance than soda pulp, as indicated by the 23% higher tensile index, 49% higher tear index, and 36% higher burst index. To further elevate physical strength, long fibered pulp (LFP), namely commercial softwood sulfate pulp, was mixed with sulfate pulp of palm fiber at levels from 20% to 50%. At the blend level of 50%, tensile index of 52.13 Nœm/g, tear index of 15.63 mNœm2/g, and burst index of 3.42 kPaœm2/g were attained. The lignin in spent liquor from pulping was isolated and characterized. Soda lignin of palm fiber was mainly composed of guaiacyl and syringyl units, and showed weight-average molecular weight of 3616 g/mol.
Journal articles
Design of refractory linings for balanced energy efficiency, uptime, and capacity in lime kilns 15FEB141
Design of refractory linings for balanced energy efficiency, uptime, and capacity in lime kilns. TAPPI JOURNAL February 2015
Journal articles
Improving energy efficiency of existing recovery boilers 15FEB105
Improving energy efficiency of existing recovery boilers, TAPPI JOURNAL February 2015
Journal articles
Chemical, anatomical, and technology aspects of Eucalyptus benthamii and Eucalyptus dunii for use in an integrated pulp and paper mill 15-Feb-73
Chemical, anatomical, and technology aspects of Eucalyptus benthamii and Eucalyptus dunii for use in an integrated pulp and paper mill, TAPPI JOURNAL February 2015
Journal articles
Optimization of a brownstock washing line 15-Feb-83
Optimization of a brownstock washing line, TAPPI JOURNAL February 2015
Journal articles
Impact of wood chip leaching pretreatment on wood chemical composition 15-Jan-09
Impact of wood chip leaching pretreatment on wood chemical composition, TAPPI JOURNAL January 2015
Journal articles
Recovery boiler sootblowers: History and technological advances 15-Jan-51
Recovery boiler sootblowers: History and technological advances, TAPPI JOURNAL January 2015
Journal articles
New challenges regarding nonprocess elements in the liquor and lime cycle, TAPPI JOURNAL July 2015
New challenges regarding nonprocess elements in the liquor and lime cycle, TAPPI JOURNAL July 2015
Journal articles
Upgrading aeration system performance in secondary basins treating pulp and paper wastewater: A review, TAPPI JOURNAL June 2015
Upgrading aeration system performance in secondary basins treating pulp and paper wastewater: A review, TAPPI JOURNAL June 2015