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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.
International Superintendents Panel Discussion and Roundtable, 1994 Papermakers Conference Proceedings
International Superintendents Panel Discussion and Roundtable, 1994 Papermakers Conference Proceedings
Potassium Kraft Pulping: Possibility or Necessity, 1996 Minimum Effluent Mills Symposium Proceedings
Potassium Kraft Pulping: Possibility or Necessity, 1996 Minimum Effluent Mills Symposium Proceedings
Duplex Stainless Steel: An Effective Material for Use in Kraft Liquor Applications, 2001 Engineering / Finishing & Converting Conference Proceedings
Duplex Stainless Steel: An Effective Material for Use in Kraft Liquor Applications, 2001 Engineering / Finishing & Converting Conference Proceedings
Pulp and Paper Roofing - Considerations and Design, 1992 Eng
Pulp and Paper Roofing - Considerations and Design, 1992 Engineering Conference Proceedings
Control of Ergonomic Hazards by Workplace Design, 1992 Engin
Control of Ergonomic Hazards by Workplace Design, 1992 Engineering Conference Proceedings
Economics of Introducing Kenaf Fibers as a Complementary Fiber Source in Existing Wood Pulp Mills, 1998 Pulping Conference Proceedings
Economics of Introducing Kenaf Fibers as a Complementary Fiber Source in Existing Wood Pulp Mills, 1998 Pulping Conference Proceedings
Role of pH and Fe (III) in Delignification with Distilled Peracetic Acid, 1998 Pulping Conference Proceedings
Role of pH and Fe (III) in Delignification with Distilled Peracetic Acid, 1998 Pulping Conference Proceedings
2020 TAPPI Selects Young Professional of the Year
2020 TAPPI Selects Young Professional of the Year Emerging leaders represent Domtar, Neenah, Inc., and WestRock TAPPI is pleased to announce the selections for this year’s Young Professionals of the
News
Mondi Receives EPRC Recycling Award
This article was originally shared by Cepi and includes additional information from the website of Mondi, a global leader in packaging and paper. It is being shared here for Ahead of the Curve readers interested in how top-performing producers approach sustainability goals.