Recycling and Deinking of Recovered Paper

By

  • Pratima Bajpai, Pratima Bajpai Consultant-Pulp and Paper, Thapar Centre for Industrial R&D Patiala, India

Paper recycling in an increasingly environmentally conscious world is gaining importance. Increased recycling activities are being driven by robust overseas markets as well as domestic demand. Recycled fibers play a very important role today in the global paper industry as a substitute for virgin pulps. Paper recovery rates continue to increase year after year

Recycling technologies have been improved in recent years by advances in pulping, flotation deinking and cleaning/screening, resulting in the quality of paper made from secondary fibres approaching that of virgin paper. The process is a lot more eco-friendly than the virgin-papermaking process, using less energy and natural resources, produce less solid waste and fewer atmospheric emissions, and helps to preserve natural resources and landfill space.

Currently more than half of the paper is produced from recovered papers. Most of them are used to produce brown grades paper and board but for the last two decades, there is a substantial increase in the use of recovered papers to produce, through deinking, white grades such as newsprint, tissue, market pulp.

By using recycled paper, companies can take a significant step toward reducing their overall environmental impacts. This study deals with the scientific and technical advances in recycling and deinking including new developments.

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Audience

Management in pulp and paper organizations, researchers in pulp and paper organizations, TAPPI (Technical association of the pulp and paper industry) USA, TAPPI Japan, CPPA Canada, Appita Australia, IPPTA  India, Other paper mill associations of USA, Canada and other countries

 

Book information

  • Published: October 2013
  • Imprint: ELSEVIER
  • ISBN: 978-0-12-416998-2


Table of Contents

Chapter 1 Introduction
Chapter 2 Legislation for use of recycled paper
Chapter 3 Collection systems and sorting
Chapter 4 Process steps in recycled fibre processing
Chapter 5 System and process design for different paper and board grades
Chapter 6 Effects of recycling on pulp quality
Chapter 7 Chemicals used in deinking systems
Chapter 8 Enzymatic deinking
Chapter 9 Bleaching of recycled fibers
Chapter 10 Refining of recycled fibres
Chapter 11 Improvement of drainability of recycled fibers
Chapter 12 Effects of recycled fibre on paper machines
Chapter 13 Control of stickies
Chapter 14 Waste water treatment and reuse
Chapter 15 Environmental aspects
Chapter 16 End uses of Recovered Paper other than Papermaking
Chapter 17 Future of deinking