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Biotechnology for environmental protection in the pulp and paper industry
1 online resource (266 pages) : illustrations
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 the year 2010. To be able to cope with increasing demand, an increase in productivity and improved environmental performance is needed as the industry is also under constant pressure to reduce and modify environmental emissions to air and water. The authors give updated information on various biotechnological processes useful in the pulp and paper industry which could help in reducing the environmental pollution problem, in addition to other benefits. Various chapters deal with the latest developments in such areas as raw material preparation, pulping, bleaching, water management, waste treatment and utilization. The book also covers the environmental regulations in various parts of the world as well as the role of biotechnology in reducing environmental problems.
Introduction -- Wood Pretreatment to Remove Toxic Extractives -- Biopulping: A Less Polluting Alternative to CTMP -- Pulp Bleaching with Xylanases -- Pulp Bleaching with White Rot Fungi and their Enzymes -- Enzymatic Deinking -- Treatment of Wastewaters with Anaerobic Technology -- Decolorization and Detoxification of Bleached Kraft Effluents -- Purification of Process Water in Closed-Cycle Mills -- Management of Wastewater Treatment Sludges -- Biofiltration of Exhaust Gases.
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