Download or read book Chemical Colour Removal from the Caustic Extraction Effluent of a Pulp and Paper Mill Bleach Plant written by Nasr, Mostafa S. H and published by c1976.. This book was released on 1976 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review of Colour Removal Technology in the Pulp and Paper Industry written by R. J. Rush and published by Water Pollution Control Directorate : Supply and Services Canada. This book was released on 1976 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The pulp and paper industry produces large volumes of effluent containing, among other things, dark brown lignin and lignin degradation products. The exact nature of the chromophoric (colour causing) groups in the wastes and the effects of these colour bodies on the aquatic environment are not known. However, developmental work on several processes for colour reduction has reached full scale application and colour removal is now required in many local areas for various reasons. Colour reduction can be achieved by either technical changes within the mill or by effluent treatment systems. In-plant modification can range from simple, inexpensive measures such as pulp washing and better "housekeeping" practices, to complex technological changes such as implementation of oxygen bleaching. While in-plant changes should be considered and implemented as a first preference, external treatment may often still be required. There are a large number of external treatment methods which are known to be technically feasible for colour removal from pulp and paper mill effluents.
Download or read book A Pilot Constructed Treatment Wetland for Pulp and Paper Mill Wastewater written by Margaret Akinyi Abira and published by CRC Press. This book was released on 2008-11-04 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study, conducted in Kenya, gives the first insight into the performance of a constructed treatment wetland receiving pulp and paper mill wastewater in the tropics.The wetland effectively removed organic matter, suspended solids, phenols and nutrients. BOD and phenols reduction rates are reported for the first time. Design parameters and guidel
Download or read book Removal of Wood derived Toxics from Pulping and Bleaching Wastes written by Dwight B. Easty and published by . This book was released on 1978 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook on Pulp and Paper Processing written by NPCS Board of Consultants & Engineers and published by ASIA PACIFIC BUSINESS PRESS Inc.. This book was released on 2008-10-01 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: The pulp and paper industry comprises companies that use wood as raw material and produce pulp, paper, board and other cellulose based products. The pulp and paper sector presents one of the energy intensive and highly polluting sectors within the Indian economy and is therefore of particular interest in the context of both local and global environmental discussions. Increases in productivity through the adoption of more efficient and cleaner technologies in the manufacturing sector will be most effective in merging economic, environmental, and social development objectives. Papers are mostly used product starting from writing to packaging. It plays an important role in commercial field as well as in academic field also. Without paper nothing is expressible and reliable, so paper is part and parcel of our life. Adequate amount of raw materials for processing paper and pulp is available. Bamboo is the main raw material for Indian paper industry. New bamboo areas even at high cost are being trapped. Some of the examples of high yield pulping process are mechanical process, semi chemical process, alkaline chemical process, sulfite process, etc. Physical strength properties of paper depend on the quality of raw material, its pulping, bleaching and subsequent paper making processes. Technology has made it easy to process these raw materials in an economic and lucrative way to meet the global demand. Raw materials like, straw, bagasse, wood, bamboo is almost available in most of the places. So it is great opportunity for the entrepreneurs to start up such kind of industry. Paper Industry has tremendously increased in India in the last 20 to 30 yrs. The Paper industry is a priority sector for foreign collaboration and foreign equity participation up to 100% receives automatic approval by Reserve Bank of India. Several fiscal incentives have also been provided to the paper industry, particularly to those mills which are based on non conventional raw material. Some of the fundamentals of the book are bleaching of bamboo cold, high yield semi chemical pulping of mixture of bamboo and mixed hardwoods, sulphate semi chemical process, kraft green liquor semi chemical process, neutral sulphite semi chemical process, thermo mechanical pulps for newsprint, zeta potential concept in paper sizing, sodium carbonate in alkali extraction during bleaching bamboo , maintenance engineering in pulp and paper industry, design and application of refiners in stock preparation, paper machine effluent etc. This book explains about the various raw material, their processing and utilizations and also the possible waste treatment of such paper and pulp making industry. To draw attention for manufacturing quality product with all possible latest technologies is the main purpose of this book. The book is very resourceful for new entrepreneurs, technocrats, existing units and research scholars.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Review Division of Chemical Technology written by CSIRO (Australia). Division of Chemical Technology and published by . This book was released on 1981 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bleach Plant Effluents from the Pulp and Paper Industry written by Pratima Bajpai and published by Springer Science & Business Media. This book was released on 2013-06-22 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 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.
Download or read book Technical Section Proceedings written by Canadian Pulp and Paper Association. Technical Section and published by . This book was released on 1992 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annual meeting held after the end of the calendar year covered by the proceedings.
Download or read book The Role of Chemical Engineering in Utilizing the Nation s Forest Resources written by George R. Lightsey and published by . This book was released on 1980 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Indian Association for Environmental Management written by and published by . This book was released on 2001 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmentally Benign Approaches for Pulp Bleaching written by Pratima Bajpai and published by Elsevier. This book was released on 2012-12-31 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulp and paper production has increased globally and will continue to increase in the near future. Approximately 155 million tons of wood pulp is produced worldwide and about 260 million 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
Download or read book AIChE Symposium Series written by American Institute of Chemical Engineers and published by . This book was released on 1972 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Pollution Abatement Technology in the Pulp and Paper Industry written by Organisation for Economic Co-operation and Development and published by . This book was released on 1972 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Indian Journal of Environmental Protection written by and published by . This book was released on 1991 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmentally Benign Approaches for Pulp Bleaching written by Pratima Bajpai and published by Elsevier. This book was released on 2005-08-05 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Pulp Bleaching Today written by Hans Ulrich Suess and published by Walter de Gruyter. This book was released on 2010 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the most effective application of chemicals in bleaching. It starts with a brief overview of the history of bleaching and then focuses on recent developments. The ban of chlorine from bleaching pulp has shifted bleaching to environmentally sound procedures. Elementary Chlorine Free bleaching (ECF bleaching) and Totally Chlorine Free bleaching (TCF bleaching) are explained. The potential of different bleaching chemicals is exemplified in detail with a special focus on what to do and what to avoid. Very recent knowledge about the sources of yellowing is utilized to explain the ideal strategy for the removal of chromophores and their precursors. Emphasis is placed on applicable bleaching, in clear contrast to sophisticated, complicated or simply expensive pseudo modern bleaching. The target of this book is to explain the potential and the limitations of different chemicals and to demonstrate the necessity of comprehensive solutions for an environmentally sound use of the raw material wood, of chemicals, and of water in the production of pulp with top quality and yield. This book should educate students in the art of bleaching, assist mill personal in their continuous effort for process optimization, help research and technology managers to successfully select their targets, and be on hand as reference of the most recent bleaching technology.
