Description
Springer Bleach Plant Effluents from the Pulp and Paper Industry 2013 Edition by Pratima Bajpai
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. Table of contents : - 1. Background1.1 Pollution problems of pulp and paper industry2. Pulp and Paper making process2.1 Pulp making Process2.2 Stock preparation and paper making process3. Pulp Bleaching and Bleaching effluents3.1 Pulp Bleaching3.2 Bleaching effluents4. Environmental effects of bleach plant effluents4.1 Environmental Fate and effects4.2 Environmental issues 4.3 Environmental regulations5. Stratgies used for reducing the generation of pollutants5.1 Pollution reduction through Process modification5.1.1 Nonconventional Pulping TechnologiesOrganosolvent PulpingOrganic acid PulpingBiopulping5.1.2 Internal Process ModificationsExtended delignification and Oxygen delignification Improved pulp washing Oxidative alkali extraction stage Substitution of elemental chlorine with chlorine dioxide Ozone ECF, Totally Chlorine-free Bleaching and Chloride Removal ProcessesBleach filtrate recoveryEnzyme pre-treatmentFungal pre-treatment5.2 External treatment 5.2.1 Physico-chemical processes5.2.2 Electro-chemical processes5.2.3 Advanced oxidation technologies5.2.4 Treatment with Enzymes5.2.5 Treatment with BacteriaAerobic treatmentAnaerobic treatmentSequential aerobic/anaerobic treatment5.2.6 Treatment with Fungi6. Conclusions and future perspectives7. References