Recycling and Deinking of Recovered Paper

Recycling and Deinking of Recovered Paper

1st Edition - October 22, 2013

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  • Author: Pratima Bajpai
  • Hardcover ISBN: 9780124169982
  • eBook ISBN: 9780124171695

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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.

Key Features

  • Covers in great depth all the aspects of recycling technologies
  • Covers the latest science and technology in recycling
  • Provides up-to-date, authoritative information and cites many mills experiences and pertinent research
  • Includes the use of biotech methods for deinking, refining. and improving drainage


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

Table of Contents

  • Preface

    1. Introduction

    1.1 The Paper and Paperboard Industry in the Global Market

    1.2 General Aspects of Paper Recycling

    1.3 Benefits of Recycling

    1.4 Statistics

    1.5 Challenges for Paper Recyclers


    2. Legislation for Use of Recycled Paper

    2.1 Introduction

    2.2 Legislation in the European Union

    2.3 Legislation in Japan

    2.4 Legislation in the USA


    3. Collection Systems and Sorting of Recovered Paper

    3.1 Collection

    3.2 Sorting, Handling and Storage of Recovered Paper


    4. Process Steps in Recycled Fibre Processing

    4.1 Introduction

    4.2 Process Steps and Equipment


    5. System and Process Design for Different Paper and Board Grades

    5.1 Introduction

    5.2 RCF Stock Preparation for Newsprint and Improved Paper Grades

    5.3 RCF Stock Preparation for Market Pulp Systems

    5.4 RCF Stock Preparation for Fine Paper System

    5.5 RCF Stock Preparation for Tissue

    5.6 RCF Stock Preparation for Test Liner


    6. Effects of Recycling on Pulp Quality

    6.1 Introduction

    6.2 General Effects of Recycling on Papermaking Properties

    6.3 Factors Influencing Recycling

    6.4 Techniques to Enhance Strength Properties of Recycled Fibres


    7. Chemicals Used in Deinking and Their Function

    7.1 Introduction

    7.2 Alkali

    7.3 Stabilisers

    7.4 Hydrogen Peroxide

    7.5 Chelating Agents

    7.6 Surfactants

    7.7 Dispersion Agents

    7.8 Collecting Chemicals

    7.9 Frothing Agent

    7.10 Defoamer

    7.11 Emulsions

    7.12 Modified Inorganic Particle

    7.13 Calcium Salts


    8. Deinking with Enzymes

    8.1 Introduction

    8.2 Enzymes Used in Deinking and Their Mechanism

    8.3 Developments in Enzymatic Deinking

    8.4 Effects of Enzymes on Fibre, Paper Quality and Pulp Yield

    8.5 Effects of Enzymes on Effluent Characteristics

    8.6 Benefits and Limitations

    8.7 Future Prospects


    9. Bleaching of Secondary Fibres

    9.1 Introduction

    9.2 Chlorine Bleaching

    9.3 Chlorine-Free Bleaching


    10. Refining of Recycled Fibres

    10.1 Introduction

    10.2 Refining Effects

    10.3 Use of Enzymes in Upgrading Secondary Fibre


    11. Improving Drainability of Recycled Fibres

    11.1 Introduction

    11.2 Effect of Enzymes and Chemical Additives on Drainage


    12. Effects of Recycled Fibre on Paper Machines

    12.1 Introduction

    12.2 Effects on Paper Machine Runnability

    12.3 Effect on Sheet Properties


    13. Control of Stickies

    13.1 Introduction

    13.2 Problems

    13.3 Control

    13.4 Future Prospects


    14. Water Reuse, Wastewater Treatment and Closed-Cycle Operation

    14.1 Water Reuse

    14.2 Wastewater Treatment

    14.3 Closed Cycle in Paper Mills Utilising Recycled Fibres


    15. Environmental Aspects of Recycling

    15.1 Introduction

    15.2 Environmental Benefits of Recycled Paper

    15.3 The Negative Effects of Paper Recycling

    15.4 Health Dangers Caused by the Use of Recycled Paper

    15.5 Organochlorine Compounds

    15.6 Carbon Footprints


    16. Uses of Recovered Paper Other than Papermaking

    16.1 Introduction

    16.2 Biorefinery

    16.3 Use of Recovered Paper in Construction and Manufacturing

    16.4 Moulded Papers

    16.5 Recovered Paper as a Fuel

    16.6 Recovered Paper for Use in Art and Handicraft


    17. Future of Paper Recycling

    17.1 Introduction

    17.2 Issues and Trends Influencing the Availability, Quality and Quantity of Recycled Fibre


Product details

  • No. of pages: 240
  • Language: English
  • Copyright: © Elsevier 2013
  • Published: October 22, 2013
  • Imprint: Elsevier
  • Hardcover ISBN: 9780124169982
  • eBook ISBN: 9780124171695

About the Author

Pratima Bajpai

Dr. Pratima Bajpai is currently working as a Consultant in the field of Paper and Pulp. She has over 36 years of experience in research at the National Sugar Institute, University of Saskatchewan, the University of Western Ontario, in Canada, in addition to the Thapar Research and Industrial Development Centre, in India. She also worked as a visiting professor at the University of Waterloo, Canada, and as a visiting researcher at Kyushu University, Fukuoka, Japan. She has been named among the World’s Top 2% Scientists by Stanford University in the list published in October 2021. This is the second consecutive year that she has made it into the prestigious list. Dr. Bajpai's main areas of expertise are industrial biotechnology, pulp and paper, and environmental biotechnology. She has contributed immensely to the field of industrial biotechnology and is a recognized expert in the field. Dr. Bajpai has written several advanced level technical books on environmental and biotechnological aspects of pulp and paper which have been published by leading publishers in the United States and Europe. She has also contributed chapters to a number of books and encyclopedia, obtained 11 patents, written several technical reports, and has implemented several processes in Indian Paper mills. Dr. Bajpai is an active member of the American Society of Microbiologists and is a reviewer of many international research journals. She has also handled several Sponsored Research Projects from industry and government agencies. She is an active member of the New York Academy of Science, American Society for Microbiology, and many more.

Affiliations and Expertise

Consultant-Pulp and Paper, Kanpur, India

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  • Joseph R. Sat Feb 08 2020

    Technical issues

    Background on global legislative framework/recycling methodology is not particularly engaging. Technical chapters more interesting.

  • metinAVCI Fri Mar 22 2019