Download or read book Acidogenesis in Two phase Anaerobic Treatment of Dairy Wastewater written by Burak Demirel and published by . This book was released on 2003 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: The acid phase of the two phase anaerobic treatment of dairy wastewater was investigated in this study. The purpose was to observe the effects of variations in hydraulic retention time (HRT) on volatile fatty acid (VFA) production and distribution in a laboratory-scale, continuous-flow, completely mixed, mesophilic anaerobic reactor, coupled with a continuous recycling system. The reactor was operated up to an organic loading rate (OLR) of about 9.3 kg COD/m3.day, and at a HRT range from 24 to 12 hours, without pH control, at temperature in a range of 35±1C. At 24 hours of HRT, net VFA production and thus, acidification, was none. The anaerobic reactor performed like that of a conventional single-phase reactor, in terms of COD removal and biogas production. Later, the degree of acidification were 6, 6, 7, 23 and 56 per cent, at HRTs of 22, 20, 18, 16 and 12 hours, respectively. The rates of acid production were also determined to be 0, 0.14, 0.19, 0.23, 0.82 and 3.07 g/l/d, at HRTs of 24, 22, 20, 18, 16 and 12 hours, respectively. The degree of acidification and the rate of acid production increased, as HRT was decreased from 24 to 12 hours. The highest degree of acidification and the highest rate of acid production were both achieved at 12 hours of HRT. Propionic, acetic, butyric, valeric and isobutyric acids were produced significantly during acidogenesis of dairy wastewater. Variations in HRT affected VFA production and distribution substantially. In order to provide acidification at 24 hours of HRT, pH was monitored in the settling tank, instead of the reactor. An average settling tank pH of about 5.2 provided an operating pH of 6.8 in the anaerobic reactor, and consequently, 20 per cent acidification was attained at 24 hours of HRT. In this phase of the study, propionic, valeric, acetic and butyric acids were the major VFAs produced. Caproic acid was also produced at minor amounts. The system was also evaluated from microbiological points of view during the study. The effects of variations in HRT on the bacterial populations present in the anaerobic reactor were monitored, in terms of changes in numbers of total microbial community, autofluorescent methanogens, and morphology of the autofluorescent methanogens. Before inoculation, seed sludge had a specific methanogenic activity (SMA) value of 403 ml CH4/g VSS.d. Medium rods and Methanococcus-like species were determined as the dominant methanogens. At the end of start-up, the specific methanogenic activity (SMA) value was 226 ml CH4/g VSS.d, and Methanococcus-like species and short rods were the dominant methanogens. The number of total bacterial community firstly decreased between 24 and 20 hours, then increased between 18 and 12 hours. The number of autofluorescent methanogens and the ratio between the number of autofluorescent methanogens and the number of total bacterial community varied much with respect to variations in HRT between 24 and 12 hours. The ratio of autofluorescent methanogens to total bacterial community ranged from 5 to 16 per cent. The lowest ratio was determined at a HRT of 12 hours. Variations in HRT also affected the dominant methanogenic species. Methanococcus-like species remained the most dominant methanogen between 24 and 18 hours. Medium rods-short rods, and long rods-medium rods were the dominant methanogens at 16 and 12 hours, respectively. A high number of methanogens were observed in the system at 24 hours of HRT with pH control in the settling tank. The ratio of autofluorescent methanogens to total bacterial community was 15 per cent, and Methanococcus-like and medium rods were the dominant methanogens. Monitoring of pH intermittently in the settling tank and consequent decrease in reactor pH did not affect the ratio of autofluorescent methanogens to total bacterial community significantly, but decreased the methanogenic activity to an extent, and provided an increase in the degree of acidification.

Download or read book Two phase Anaerobic Digestion of Dairy Wastewater written by Bahar Kasapgil and published by . This book was released on 1994 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Temperature phased Anaerobic Sequencing Batch Treatment of Dairy Wastewater written by Prince Noah Dugba and published by . This book was released on 1998 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Biological Treatment of Industrial Waste Water and their Recycling for a Sustainable Future written by Ram Lakhan Singh and published by Springer. This book was released on 2018-10-12 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: With rampant industrialization, the management of waste generated by various industries is becoming a mammoth problem. Wastewater discharges from industrial and commercial sources may contain pollutants at levels that could affect the quality of receiving waters or interfere with potable water supplies. Thousands of small and large-scale industrial units dump their waste, which is often toxic and hazardous, in open spaces and nearby water sources. Over the last three decades, many cases of serious and permanent damage to the environment and human health on the part of these industries have come to the fore. This book mainly focuses on the biological treatment of wastewater from various industries, and provides detailed information on the sources and characteristics of this wastewater, followed by descriptions of the biological methods used to treat them. Individual chapters address the treatment of wastewater from pulp and paper mills; tanneries; distilleries, sugar mills; the dairy industry; wine industry; textile industry; pharmaceutical industry; food processing industry; oil refinery/petroleum industry; fertilizer industry and beverage/ soft drink bottling industry; and include the characteristics of wastewater, evaluation of biological treatment methods, and recycling of wastewater. Easy to follow, with simple explanations and a good framework for understanding the complex nature of biological wastewater treatment processes, the book will be instrumental to quickly understanding various aspects of the biological treatment of industrial wastewater. It will serve as a valuable reference book for scientists, researchers, educators, and engineers alike.

Download or read book Environmental Biotechnology ESEB 2004 written by W. Verstraete and published by CRC Press. This book was released on 2004-07-01 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents recent developments in the field of environmental biotechnology. Three major forces are currently driving this discipline: the exploration of microbial diversity by genetic and genomic tools, the ongoing progress in the modelling of various transient phenomena, and environmental biotechnology. This book provides a state-of-art-overview of developments in the field of environmental biotechnology concerning exploration, implementation, modelling, economic development and safety. It comprises selected, peer-reviewed papers that were presented at the European Symposium on Environmental Biotechnology (ESEB) 2004, held in Oostende, Belgium, April 2004.

Download or read book Two phase Anaerobic Digestion for Enhanced Stabilization and Methanation of Sewage Sludge written by and published by . This book was released on 1992 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Food Processing Waste and Utilization written by Sanju Bala Dhull and published by CRC Press. This book was released on 2022-10-24 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of its high Chemical Oxygen Demand (COD) and sheer volume, waste from food processing has significant potential to pollute land, water, and air. Both environmentally and economically, it is important to properly treat food processing wastes including the recovery of valuable products. Food Processing Waste and Utilization: Tackling Pollution and Enhancing Product Recovery discusses possible solutions to tackle food waste generation and its further utilization. It addresses process engineering economics, microbiology of waste recycling, biochemical and nutritional aspects of food waste processing. The book includes detailed guidance and case studies about utilization/valorization of food waste. Key Features Covers modern as well as conventional methods of food industry waste utilization Discusses possible solutions to tackle food waste generation and its further utilization Addresses socioeconomic considerations, environmental concerns and discusses regulations related to food processing waste Authors of this book are well-recognized researchers in their specific fields who have made important contributions to the knowledge of utilization of different food industry wastes at different levels. This book covers a wide range of breakthroughs in waste management, and is of value for students, research scholars, postdoctoral fellows and faculties pursuing careers in fields such as Bioprocess Technology, Food Technology, Food Science and Technology, Food Biotechnology, and Fermentation and Bioengineering.

Download or read book Environmental Biotechnology Basic Concepts and Applications 2 e written by Indu Shekhar Thakur and published by I K International Pvt Ltd. This book was released on 2011-01-06 with total page 531 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biotechnology impinges on everyone's lives. It is one of the major technologies of the twenty-first century with wide-ranging, multidisciplinary activities ranging from small entities of life to the application, and production of goods. Environmental biotechnology is a huge and fast growing field with increasing relevance for a sustainable development through protection of environment to production of biomaterials. It continues to revolutionize the understanding of basic life sustaining processes in the environment, identification and exploitation of the molecules, and its use to provide clean technologies and to deal with environmental problems. This book provides an overview of basic processes of the environment, perturbations in the environment due to natural and human activities and use of biotechnological principles for remediation for sustainable development of the environment.

Download or read book Organic Pollutants in Wastewater II written by Inamuddin and published by Materials Research Forum LLC. This book was released on 2018-05-15 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wastewater represents an alternative to freshwater if it can be treated successfully for re-use applications. Promising techniques involve photocatalysis, photodegradation, adsorption, bioreactors, nanocomposites, nanofiltration and membranes. Keywords: Wastewater Treatment, Biohydrogen Production, Bioethanol Production, Biological Wastewater, Carbon Nanotubes, Dairy Wastewater, Graphene-based Nanocomposites, Hormones in Wastewater, Malachite Green Removal, Membrane Bioreactors, Nanocomposites, Nanofiltration, Nanomembranes, Nanotubes, Organic Pollutants, Pesticides Removal, Photocatalysis, Photodegradation, Reversed Osmosis, Textile Wastewater.

Download or read book Comprehensive Biotechnology written by and published by Elsevier. This book was released on 2019-07-17 with total page 4876 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Biotechnology, Third Edition, Six Volume Set unifies, in a single source, a huge amount of information in this growing field. The book covers scientific fundamentals, along with engineering considerations and applications in industry, agriculture, medicine, the environment and socio-economics, including the related government regulatory overviews. This new edition builds on the solid basis provided by previous editions, incorporating all recent advances in the field since the second edition was published in 2011. Offers researchers a one-stop shop for information on the subject of biotechnology Provides in-depth treatment of relevant topics from recognized authorities, including the contributions of a Nobel laureate Presents the perspective of researchers in different fields, such as biochemistry, agriculture, engineering, biomedicine and environmental science

Download or read book Waste Management Techniques for Improved Environmental and Public Health Emerging Research and Opportunities written by Tsai, Sang-Bing and published by IGI Global. This book was released on 2019-12-27 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: A central concern that has remained relevant in recent years has been the management of waste and pollution. Improper disposal methods such as open-air burning and unsafe recycling have led to significant public and environmental health issues including respiratory disorders, resource depletion, and infant mortality. Adopting new waste management techniques is a necessity in order to preserve the health of the global community and ecosystem. Waste Management Techniques for Improved Environmental and Public Health: Emerging Research and Opportunities provides innovative insights into the advancing methods and technologies of reducing pollution and promoting sustainable development. The content within this publication examines ecological technologies, risk assessment, and green operation. It is designed for ecologists, biologists, researchers, enterprises, academicians, policymakers, scientists, environmental engineers, and students seeking current research on developing theories and techniques within waste moderation and environmental protection.

Download or read book Anaerobic Treatment of Dairy Effluent written by Agropur, coopérative agro-alimentaire and published by . This book was released on 1986 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: Described are two full-scale anaerobic wastewater treatment systems operating in parallel at a cheese plant.

Download or read book Environmental Biotechnology written by and published by I. K. International Pvt Ltd. This book was released on 2001 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Treatment of Milk Wastewater by Two Stage Anaerobic aerobic Processes written by Jerry Robert Taricska and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Industrial and Hazardous Wastes Treatment written by Lawrence K. Wang and published by CRC Press. This book was released on 2004-06-29 with total page 1489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting effective, practicable strategies modeled from ultramodern technologies and framed by the critical insights of 78 field experts, this vastly expanded Second Edition offers 32 chapters of industry- and waste-specific analyses and treatment methods for industrial and hazardous waste materials-from explosive wastes to landfill leachate to wastes produced by the pharmaceutical and food industries. Key additional chapters cover means of monitoring waste on site, pollution prevention, and site remediation. Including a timely evaluation of the role of biotechnology in contemporary industrial waste management, the Handbook reveals sound approaches and sophisticated technologies for treating textile, rubber, and timber wastes dairy, meat, and seafood industry wastes bakery and soft drink wastes palm and olive oil wastes pesticide and livestock wastes pulp and paper wastes phosphate wastes detergent wastes photographic wastes refinery and metal plating wastes power industry wastes This state-of-the-art Second Edition is required reading for pollution control, environmental, chemical, civil, sanitary, and industrial engineers; environmental scientists; regulatory health officials; and upper-level undergraduate and graduate students in these disciplines.

Download or read book Anaerobic Digestion of Fish Processing Wastewater with Special Emphasis on Hydrolysis of Suspended Solids written by Analiza Palenzuela Rollon and published by CRC Press. This book was released on 2005-05-01 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fish processing industries are important to the Philippine economy, but they pollute and in the long run the fish industry cannot be sustained due to this pollution. As fish processing waste waters contain high concentrations of organic matter, this work discusses anaerobic treatment as an option.

Download or read book Advances in Food and Nutrition Research written by Steve Taylor and published by Academic Press. This book was released on 2009-11-06 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Food and Nutrition Research recognizes the integral relationship between the food and nutritional sciences and brings together outstanding and comprehensive reviews that highlight this relationship. Contributions detail scientific developments in the broad areas of food science and nutrition and are intended to provide those in academia and industry with the latest information on emerging research in these constantly evolving sciences. The latest important information for food scientists and nutritionists Peer-reviewed articles by a panel of respected scientists The go-to series since 1948