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| Author | : Pratima Bajpai |
| Publisher | : Gulf Professional Publishing |
| Total Pages | : 296 |
| Release | : 2005-09-23 |
| Genre | : Science |
| ISBN | : 9780444517241 |
1. 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 | : Elsevier |
| Total Pages | : 289 |
| Release | : 2005-08-05 |
| Genre | : Science |
| ISBN | : 0080457940 |
Pulp and paper production has increased globally and will continue to increase in the near future. Approximately 155 millions tons of wood pulp is produced worldwide and about 260 millions is projected for 2010. To cope with the increasing demand, an increase in production and improved environmental performance is needed as the industry is under constant pressure to reduce environmental emissions to air and water. This book gives updated information on environmentally benign approaches for pulp bleaching, which can help solve the problems associated with conventional bleaching technologies.* Main focus is on the environmentally friendly technologies that can help solve some of the problems associated with conventional bleaching technologies* Information given is up-to-date, authoritative and cites the experiences of many mills and pertinent research, which is of interest to those working in the industry or intending to do so* Covers in great depth all the aspects of various bleaching processes including environmental issues
| Author | : Pratima Bajpai |
| Publisher | : Springer Nature |
| Total Pages | : 98 |
| Release | : 2023-02-05 |
| Genre | : Science |
| ISBN | : 3031236939 |
This 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 |
| Total Pages | : 350 |
| Release | : 2011-03-21 |
| Genre | : Technology & Engineering |
| ISBN | : 1118074327 |
Implementing 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 |
| Total Pages | : 360 |
| Release | : 2023-04-01 |
| Genre | : Science |
| ISBN | : 032398486X |
Pulping 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 | : Raymond A. Young |
| Publisher | : John Wiley & Sons |
| Total Pages | : 594 |
| Release | : 1997-11-19 |
| Genre | : Technology & Engineering |
| ISBN | : 9780471157700 |
Solving 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 | : Ian O'Hara |
| Publisher | : John Wiley & Sons |
| Total Pages | : 406 |
| Release | : 2016-05-16 |
| Genre | : Technology & Engineering |
| ISBN | : 1118719913 |
Sugarcane has garnered much interest for its potential as a viable renewable energy crop. While the use of sugar juice for ethanol production has been in practice for years, a new focus on using the fibrous co-product known as bagasse for producing renewable fuels and bio-based chemicals is growing in interest. The success of these efforts, and the development of new varieties of energy canes, could greatly increase the use of sugarcane and sugarcane biomass for fuels while enhancing industry sustainability and competitiveness. Sugarcane-Based Biofuels and Bioproducts examines the development of a suite of established and developing biofuels and other renewable products derived from sugarcane and sugarcane-based co-products, such as bagasse. Chapters provide broad-ranging coverage of sugarcane biology, biotechnological advances, and breakthroughs in production and processing techniques. This text brings together essential information regarding the development and utilization of new fuels and bioproducts derived from sugarcane. Authored by experts in the field, Sugarcane-Based Biofuels and Bioproducts is an invaluable resource for researchers studying biofuels, sugarcane, and plant biotechnology as well as sugar and biofuels industry personnel.
| Author | : Ricardo Carriere |
| Publisher | : Zed Books |
| Total Pages | : 290 |
| Release | : 1996-08-15 |
| Genre | : Business & Economics |
| ISBN | : 9781856494380 |
The expansion of the pulp and paper industry is one of the most important causes of land and water conflicts in the South. This book examines the threat to livelihood, soil and biodiversity generated by large-scale pulpwood plantations in the South.
| Author | : Shiv Sanjeevi |
| Publisher | : Delve Publishing |
| Total Pages | : 0 |
| Release | : 2017-11 |
| Genre | : |
| ISBN | : 9781773611891 |
The 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 | : Panel on Separation Technology for Industrial Reuse and Recycling |
| Publisher | : National Academies Press |
| Total Pages | : 128 |
| Release | : 1999-01-22 |
| Genre | : Technology & Engineering |
| ISBN | : 0309592828 |
Separation processesor processes that use physical, chemical, or electrical forces to isolate or concentrate selected constituents of a mixtureare essential to the chemical, petroleum refining, and materials processing industries. In this volume, an expert panel reviews the separation process needs of seven industries and identifies technologies that hold promise for meeting these needs, as well as key technologies that could enable separations. In addition, the book recommends criteria for the selection of separations research projects for the Department of Energy's Office of Industrial Technology.
