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TAPPI Journal, Paper360º January/February 2023

Water chemistry challenges in pulping and papermaking • fundamentals and practical insights: Part 2: Conductivity, charge, and hardness, TAPPI Journal June 2023

ABSTRACT: Although water is essential to the papermaking process, papermakers often overlook its importance and focus on fibers, fillers, and chemical additives. A better understanding of water properties and chemical interactions associated with water at the wet end leads to a sound foundation for high-quality paper production and smooth operation. Water is an excellent solvent for ionic substances, both organic and inorganic. These substances contribute to system conductivity, charge, and hardness and significantly impact the papermaking process. Part 1 of this paper, published in TAPPI J. 21(6): 313(2022), discussed fundamental water properties, water chemistry, and the impact of pH on pulping and papermaking operations. In this paper, we review definitions, sources, and the typical symptoms of the effect of conductivity, charge, and hardness on the productivity of the papermaking process. Sources of conductivity, charge, and hardness impacting these factors, measurement methods, and available correction strategies for their control are also discussed.

TAPPI Journal Summaries, Paper360º March/April 2023

TAPPI Journal Summaries, Paper360º March/April 2023

Small Jobs in Maintenance, Paper360º March/April 2023

A Tailored Approach to Kaolin Products, Paper360° November/December 2010

A Tailored Approach to Kaolin Products, Paper360º November/December 2010

Over the Wire, Paper360° September/October 2010

Over the Wire...News Summary, Paper360º September/October 2010

Cascades Starts Up Greenpac Containerboard Mill, Paper360º September/October 2013

Cascades Starts Up Greenpac Containerboard Mill, Paper360º September/October 2013

Digester thinning: Erosion-corrosion of internal flow channel headers, TAPPI JOURNAL August 2014

Digester thinning: Erosion-corrosion of internal flow channel headers, TAPPI JOURNAL August 2014

Riding the Rails, Paper360º, July/August 2017

Riding the Rails, Paper360º, July/August 2017

Trailer Flooring Makes a Difference in Paper Roll Transport,

Trailer Flooring Makes a Difference in Paper Roll Transport, Paper360º, July/August 2017