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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.
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Wheat straw as an alternative pulp fiber, TAPPI Journal January 2020
Author: Peter W. Hart | ABSTRACT: The desire to market sustainable packaging materials has led to an interest in the use of various fiber types as a raw material. It has been suggested that the use of annual crops for partial replacement of wood fiber would result in more sustainable products. Several life cycle analyses (LCA) have been performed to evaluate these claims. These LCAs provided conflicting and contradictory results because of the local conditions and the specific pulping processes investigated. Selected LCAs are reviewed and the underlying reasons for these conflicting results are analyzed.
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Use of Ozone for Cooling Towers. Paper360º July/August 2020
Use of Ozone for Cooling Towers. Paper360º July/August 2020
Journal articles
Magazine articles
Editorial: TAPPI Journal 2019 Best Research Paper addresses hard scale formation in green liquor pipelines, TAPPI Journal March 2020
ABSTRACT: TAPPI and the TAPPI Journal (TJ) Editorial Board would like congratulate the authors of the 2019 TAPPI Journal Best Research Paper Award: Alisha Giglio, Vladimiros Papangelakis, and Honghi Tran. Their paper, “The solubility of calcium carbonate in green liquor handling systems,” appeared on p. 595 of the October 2019 issue. This kraft recovery cycle research was recognized by the TJ Editorial Board for its innovation, creativity, scientific merit, and clear expression of ideas.
Journal articles
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We’ve Got Good Chemistry: Innovations Papermakers Need to Know About, Paper360º March/April 2020
We’ve Got Good Chemistry: Innovations Papermakers Need to Know About, Paper360º March/April 2020
Journal articles
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Alternative “green” lime kiln fuels: Part II—Woody biomass, bio-oils, gasification, and hydrogen, TAPPI Journal May 2020
ABSTRACT: This paper is the second of a two-part series on “green” lime kiln fuels. The first part of this work reviews the use of pulp mill and recovery byproducts as either full or partial replacement of oil or natural gas in the kiln. The second part reviews the use of various forms of woody biomass, bio-oils, gasification and hydrogen as potential carbon neutral or carbon-free lime kiln fuels. Several of these options require specialized burners to supply the fuel to the kiln and high-quality metallurgy to withstand the acidic conditions of the fuel.
Journal articles
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Wireless Sensors Improve Toxic Gas Mitigation in P&P Mills, Paper360º May/June 2020
Wireless Sensors Improve Toxic Gas Mitigation in P&P Mills, Paper360º May/June 2020
Journal articles
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North America’s First Tree-Free Pulp Mill, Paper360º March/April 2019
North America’s First Tree-Free Pulp Mill, Paper360º March/April 2019
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Magazine articles
Fastmarkets RISI’s 2019 Asian CEO of the Year: Susumu Yajima, Oji Holdings Corporation, Paper360 May/June 2019
Fastmarkets RISI’s 2019 Asian CEO of the Year: Susumu Yajima, Oji Holdings Corporation, Paper360 May/June 2019
Journal articles
Magazine articles
Slave Lake Pulp Generates Biogas, Saves Money, Paper360º November/December 2019
Slave Lake Pulp Generates Biogas, Saves Money, Paper360º November/December 2019