Recycling and deinking of recovered paper / / Pratima Bajpai

• Autore: Bajpai P (Pratima)
• Pubblicazione: Waltham, MA : , : Elsevier, , 2014
• Edizione: First edition.
• Descrizione fisica: 1 online resource (315 p.)
• Disciplina: 363.72; 363.7288
• Soggetto topico: Waste paper - Recycling
• Soggetto genere / forma: Electronic books.
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references.
• Nota di contenuto: Front Cover; Recycling and Deinking of Recovered Paper; Copyright Page; 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; 1.5.1 Deinking; 1.5.2 Adhesives; 1.5.3 Limited Life Cycle; References; 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; References; 3 Collection Systems and Sorting of Recovered Paper; 3.1 Collection ; 3.2 Sorting, Handling and Storage of Recovered PaperReferences; 4 Process Steps in Recycled Fibre Processing; 4.1 Introduction; 4.2 Process Steps and Equipment; 4.2.1 Pulping; 4.2.2 Deflaking; 4.2.3 Refuse Removal; 4.2.4 High-Density Cleaning; 4.2.4.1 Coarse and Fine Screening; 4.2.5 Flotation; 4.2.6 Washing; 4.2.7 Thickening; 4.2.8 Kneading and Dispersion; 4.2.9 Fine Cleaning; 4.2.10 Deinking Processes; References; 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 Systems5.4 RCF Stock Preparation for Fine Paper System; 5.5 RCF Stock Preparation for Tissue; 5.6 RCF Stock Preparation for Test Liner; References; 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; References; 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 Agents7.8 Collecting Chemicals; 7.9 Frothing Agent; 7.10 Defoamer; 7.11 Emulsions; 7.12 Modified Inorganic Particle; 7.13 Calcium Salts; References; 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; References; 9 Bleaching of Secondary Fibres; 9.1 Introduction; 9.2 Chlorine Bleaching; 9.2.1 Bleaching with Hypochlorite ; 9.3 Chlorine-Free Bleaching9.3.1 Bleaching with Hydrogen Peroxide; 9.3.2 Bleaching with Dithionite; 9.3.3 Bleaching with FAS; 9.3.4 Bleaching with Oxygen; 9.3.5 Bleaching with Ozone; 9.3.6 Bleaching with Peroxyacids; 9.3.7 Direct Borohydride Injection Bleaching; References; 10 Refining of Recycled Fibres; 10.1 Introduction; 10.2 Refining Effects; 10.3 Use of Enzymes in Upgrading Secondary Fibre; References; 11 Improving Drainability of Recycled Fibres; 11.1 Introduction; 11.2 Effect of Enzymes and Chemical Additives on Drainage; References; 12 Effects of Recycled Fibre on Paper Machines ; 12.1 Introduction
• Sommario/riassunto: 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 pro
• Titolo autorizzato: Recycling and deinking of recovered paper
• ISBN: 0-12-417169-9
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910453721303321
• Lo trovi qui: Univ. Federico II