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Author: Pratima Bajpai
Publisher: Gulf Professional Publishing
Published: 2005-09-23
Total Pages: 296
ISBN-13: 9780444517241
DOWNLOAD EBOOK1. Introduction. -- 2. General background. -- 3. Options for environmentally benign bleaching. -- 4. ECF and TCF bleaching. -- 5. Chlorine free bleaching of secondary fibers. -- 6. Closed cycle bleach plant.
Author: Pratima Bajpai
Publisher: Springer Nature
Published: 2023-02-05
Total Pages: 98
ISBN-13: 3031236939
DOWNLOAD EBOOKThis book provides the most up-to-date and comprehensive information on the state-of-the-art techniques and aspects involved in environment-friendly pulping technologies. Traditional chemical and semi-chemical pulping processes are not environmentally friendly. Therefore, it has become important to look for alternative approaches to mitigate wastewater emissions in the paper industry, by making more stringent regulations to improve environmental conservation. In response to this problem, new raw materials need to be explored to replace traditional choices and also new pulping processes need to be developed based on less polluting, more easily recovered reagents. This book presents new and emerging deep eutectic solvents for lignocellulosic biomass pretreatment, and discusses the effects of deep eutectic solvents on biomass pretreatment and the production of value-added products. It also introduces biotechnological methods of pulping. Biotechnological processes help to make manufacturing processes cleaner and more efficient by reducing toxic chemical pollution and greenhouse gas emissions. Given its scope, this book is of interest to applied chemists, foresters, chemical engineers, wood scientists, along with engineers and researchers involved in the pulp and paper industry as a valuable reference.
Author: Pratima Bajpai
Publisher: John Wiley & Sons
Published: 2011-03-21
Total Pages: 350
ISBN-13: 1118074327
DOWNLOAD EBOOKImplementing Cleaner Production in the pulp and paper industry The large—and still growing—pulp and paper industry is a capital- and resource-intensive industry that contributes to many environmental problems, including global warming, human toxicity, ecotoxicity, photochemical oxidation, acidification, nutrification, and solid wastes. This important reference for professionals in the pulp and paper industry details how to improve manufacturing processes that not only cut down on the emission of pollutants but also increase productivity and decrease costs. Environmentally Friendly Production of Pulp and Paper guides professionals in the pulp and paper industry to implement the internationally recognized process of Cleaner Production (CP). It provides updated information on CP measures in: Raw material storage and preparation Pulping processes (Kraft, Sulphite, and Mechanical) Bleaching, recovery, and papermaking Emission treatment and recycled fiber processing In addition, the book includes a discussion on recent cleaner technologies and their implementation status and benefits in the pulp and paper industry. Covering every aspect of pulping and papermaking essential to the subject of reducing pollution, this is a must-have for paper and bioprocess engineers, environmental engineers, and corporations in the forest products industry.
Author: Z.M.A. Ainun
Publisher: Elsevier
Published: 2023-04-01
Total Pages: 360
ISBN-13: 032398486X
DOWNLOAD EBOOKPulping and Papermaking of Non-wood Plant Fibres presents the latest technologies associated with the papermaking process. With chapters specific to each non-wood species, the book provides step-by-step guidance on processes such as pulping, bleaching, blending and beating. Non-wood fibers are practical for pulp and paper production due to their chemical content of cellulose, hemicellulose and lignin percentages. Beginning with a general overview of non-wood fibers in the papermaking process, chapters then take a deep dive into different raw materials and their processes, including bamboo, corn stalk, pineapple leaves and sugarcane. This book is an essential resource for researchers, scientists and industry specialists. - Provides comprehensive coverage of the processes involved in pulp and papermaking technology for each species of non-wood raw materials - Written by the leading research and industrial experts in the field of pulping, bleaching, blending, beating and papermaking processes - Includes step-by-step processes and methodologies
Author: Pratima Bajpai
Publisher: Springer Science & Business Media
Published: 2013-06-22
Total Pages: 93
ISBN-13: 3319005456
DOWNLOAD EBOOKThis book covers bleach plant effluents, that most polluting effluent from the pulp and paper industry. Disappearance of benthic invertebrates, a high incidence of fish diseases, and mutagenic effects on the aquatic fauna are some of the consequences of the disposal of bleach effluents into surface waters. This book describes environmental impact of bleach plant effluents, environmental regulations, and measures to reduce the pollution load by internal process modification and external treatment of bleach plant effluents.
Author: Raymond A. Young
Publisher: John Wiley & Sons
Published: 1997-11-19
Total Pages: 594
ISBN-13: 9780471157700
DOWNLOAD EBOOKSolving the pulp and paper industries' environmental problems is essential to maintaining the forest industry and accommodating the changing economic needs of forest communities. This book explores the construction of new mills--operating on new technology that does not produce pollutants--which are vital to the pulp and paper industry.
Author: Karl-Erik Eriksson
Publisher:
Published: 1998
Total Pages: 360
ISBN-13:
DOWNLOAD EBOOKFocusing on fiber processing for pulp, paper, and textiles, this book takes a comprehensive look at enzymatic methods which avoid the use of harsh chemicals. It is divided into separate sections devoted to pulp and paper and to textiles.
Author:
Publisher:
Published: 1998
Total Pages: 502
ISBN-13:
DOWNLOAD EBOOKAuthor: Shiv Sanjeevi
Publisher: Delve Publishing
Published: 2017-11
Total Pages: 0
ISBN-13: 9781773611891
DOWNLOAD EBOOKThe use of bacteria or enzymes or biological agents in the removal of color is termed as biobleaching. The employment of various chemicals in manufacturing processes of paper, clothes, coir, jute pose several harsh effects on the environment. In today's world of increasing awareness on environmental safety, the use of nature's selected agents can serve as a safe alternative promising a better world for the future generations.Research in the field of biobleaching has examined the use of several enzymes produced by bacteria or fungi or biotechnology or microbes themselves or even a cocktail of nature's harvest as microbes and their enzymes to remove color.This book serves to address various aspects of this field including the history, research conducted, various agents used for biobleaching and also present a merit-demerit analysis and scope of the subject. The authors seek to do their part to environmental safety as this book offers a comprehensive account of the use of nature's agents in decolorization, thereby, leaving a world with color for generations ahead.
Author: Mark R. Servos
Publisher: CRC Press
Published: 2020-02-03
Total Pages: 724
ISBN-13: 1000725138
DOWNLOAD EBOOKIn recent years, there have been emerging concerns regarding the fate and effects of pulp and paper mill effluents on the environment. Countries throughout the world are focusing attention on the implementation of regulatory and monitoring programs. In response, industry has begun to implement a variety of process and treatment technologies designed to minimize or eliminate the potential impacts. Environmental Fate and Effects of Pulp and Paper Mill Effluents explores the most active and critical current research and experimentation from around the world. This comprehensive overview examines the identity and origin of chemicals in pulp mill effluents, environmental fate of chemicals from pulp and paper mills, bioaccumulation of substances from pulp mills to fish and wildlife, field and laboratory studies of biochemical and whole organism responses associated with pulp and paper effluents, integrated monitoring and future research, and policy directions of this rapidly evolving field. Written by prominent scientists from around the world with contributions from industry, government, and academia, this important new book provides a balanced global perspective of the recent scientific findings and the challenges being faced in the immediate future.
