New PDF release: Biotechnology for Environmental Protection in the Pulp and

By Dr. Pratima Bajpai, Dr. Pramod K. Bajpai, Prof. Dr. Ryuichiro Kondo (auth.)

ISBN-10: 3642601367

ISBN-13: 9783642601361

ISBN-10: 3642642713

ISBN-13: 9783642642715

Pulp and paper construction has elevated globally and may proceed to extend within the close to destiny. nearly one hundred fifty five million a whole bunch wooden pulp is produced around the globe and approximately 260 million is projected for the 12 months 2010. which will focus on expanding call for, a rise in productiveness and greater environmental functionality is required because the can also be less than consistent strain to minimize and regulate environmental emissions to air and water. The authors provide up-to-date info on numerous biotechnological procedures helpful within the pulp and paper that can assist in decreasing the environmental toxins challenge, as well as different merits. quite a few chapters take care of the most recent advancements in such components as uncooked fabric instruction, pulping, bleaching, water administration, waste therapy and usage. The booklet additionally covers the environmental rules in a number of elements of the area in addition to the function of biotechnology in decreasing environmental problems.

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Extra resources for Biotechnology for Environmental Protection in the Pulp and Paper Industry

Example text

It decreases dichloromethane-extractable resin by about 30%," including a 60% reduction in triglycerides, which are responsible for sticky deposits on the paper machine. 75 The cost of incorporating the fungal treatment process into existing mills is minimal. It is a relatively simple process that can be carried out in any woodyard. Limitations and Future Prospects of Biomechanical Pulping A biopulping process would require inoculum on a regular basis for commercial-scale applications, which would involve additional work and expense.

Holzforschung 1994; 48: 199-202 48. Akhtar M, Blanchette RA, Burnes T: Using Simons stain to predict energy savings during biomechanical pulping. Wood Fiber Sci 1995; 27(3):258-264. 49. Sykes M: Bleaching and brightness stability of aspen biomechanical pulps. Tappi J 1993; 76(11): 121-126. 50. Scott GM, Akhtar M, Lentz MJ et al: Engineering, scale-up, and economic aspects of fungal pretreatment of wood chips. In: Young RA, Akhtar M (eds) Environmentally friendly technologies for the pulp and paper industry.

Effluent toxicity. The decrease of toxicity observed for the fungus-treated biopulps is consistent with biotreatment of mill effluents by the MyCoR system. Biochemical Pulping Fungal pretreatment of wood before chemical pulping has received relatively little attention. ··70 The improved cooking properties of the fungus-treated chips were attributed to enhanced penetration of cooking liquor and a lower lignin content. ··'· The environmental consequences of the fungal treatments were not addressed in these studies, but the substantial (up to 17%) wood weight loss during the fungal pretreatment would negate the reported yield improvement, and the darkening of the wood by the fungus would probably require application of more bleaching chemicals.

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Biotechnology for Environmental Protection in the Pulp and Paper Industry by Dr. Pratima Bajpai, Dr. Pramod K. Bajpai, Prof. Dr. Ryuichiro Kondo (auth.)

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