Download or read book An Operator s Guide to Biological Nutrient Removal BNR in the Activated Sludge Process written by Michael H. Gerardi and published by Chemical Publishing Company. This book was released on 2016-05-19 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents - List of Tables - List of Figures - PART ONE: NITRIFICATION - Chapter 1 Introduction - Chapter 2 Nitrogenous and Phosphorous Compounds - Chapter 3 Nitrification: The Basics - Chapter 4 Nitrifying Bacteria - Chapter 5 Nitrification and Limiting Factors - Chapter 6 Promoting Nitrification - PART TWO: DENITRIFICATION - Chapter 7 Denitrification: The Basics - Chapter 8 Denitrifying Bacteria - Chapter 9 Denitrification and Limiting Factors - PART THREE: BIOLOGICAL PHOSPHORUS REMOVAL - Chapter 10 Biological Phosphorus Removal: The Basics - Chapter 11 EBPR: Process Control - Abbreviations and Acronyms - Glossary - Bibliography - Biological nutrient removal (BNR), the removal of nitrogen and phosphorus from wastewater, is a complex process. Although the activated sludge process is an efficient technology for the removal of biochemical oxygen demand (BOD) and total suspended solids (TSS), it provides less-than-optimal conditions for the removal of nitrogen and phosphorus, and presents numerous challenges to the operator trying to satisfy the many requirements for several different groups of bacteria. In addition to satisfying the requirements there are numerous, highly variable operational conditions that impact BNR. These conditions include: changes in strength and composition of the wastewater, alkalinity and pH, temperature, and presence of inhibitory and toxic wastes. Even fluctuations in flows, especially from inflow and infiltration, can adversely impact the aerobic, anoxic, and anaerobic conditions needed for successful BNR. Of the three treatment processes, nitrification, denitrification, and enhanced biological removal, nitrification is often the most difficult to achieve. Therefore, a large portion of this book reviews nitrification. Operators of the activated sludge process need to understand the basic biological, chemical, and physical requirements for BNR in order to improve the performance of these treatment processes. An Operator's Guide to Biological Nutrient Removal (BNR) in the Activated Sludge Process is intended to help operators in the monitoring, troubleshooting, and process control of BNR. Numerous tables and figures are included in the book to help the operator understand the biological and chemical reactions that are involved in BNR processes and how the reactions can be monitored for process control. Design of BNR processes is not addressed in this book. Design is addressed in numerous engineering publications. The book serves to help operators achieve permit compliance for nitrogen and phosphorus discharge limits and obtain cost-effective operation. -

Download or read book An Operator s Guide to Biological Nutrient Removal BNR in the Activated Sludge Process written by Michael H. Gerardi and published by . This book was released on 2016 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Contents - List of Tables - List of Figures - PART ONE: NITRIFICATION - Chapter 1 Introduction - Chapter 2 Nitrogenous and Phosphorous Compounds - Chapter 3 Nitrification: The Basics - Chapter 4 Nitrifying Bacteria - Chapter 5 Nitrification and Limiting Factors - Chapter 6 Promoting Nitrification - PART TWO: DENITRIFICATION - Chapter 7 Denitrification: The Basics - Chapter 8 Denitrifying Bacteria - Chapter 9 Denitrification and Limiting Factors - PART THREE: BIOLOGICAL PHOSPHORUS REMOVAL - Chapter 10 Biological Phosphorus Removal: The Basics - Chapter 11 EBPR: Process Control - Abbreviations and Acronyms - Glossary - Bibliography - Biological nutrient removal (BNR), the removal of nitrogen and phosphorus from wastewater, is a complex process. Although the activated sludge process is an efficient technology for the removal of biochemical oxygen demand (BOD) and total suspended solids (TSS), it provides less-than-optimal conditions for the removal of nitrogen and phosphorus, and presents numerous challenges to the operator trying to satisfy the many requirements for several different groups of bacteria. In addition to satisfying the requirements there are numerous, highly variable operational conditions that impact BNR. These conditions include: changes in strength and composition of the wastewater, alkalinity and pH, temperature, and presence of inhibitory and toxic wastes. Even fluctuations in flows, especially from inflow and infiltration, can adversely impact the aerobic, anoxic, and anaerobic conditions needed for successful BNR. Of the three treatment processes, nitrification, denitrification, and enhanced biological removal, nitrification is often the most difficult to achieve. Therefore, a large portion of this book reviews nitrification. Operators of the activated sludge process need to understand the basic biological, chemical, and physical requirements for BNR in order to improve the performance of these treatment processes. An Operator's Guide to Biological Nutrient Removal (BNR) in the Activated Sludge Process is intended to help operators in the monitoring, troubleshooting, and process control of BNR. Numerous tables and figures are included in the book to help the operator understand the biological and chemical reactions that are involved in BNR processes and how the reactions can be monitored for process control. Design of BNR processes is not addressed in this book. Design is addressed in numerous engineering publications. The book serves to help operators achieve permit compliance for nitrogen and phosphorus discharge limits and obtain cost-effective operation.

Download or read book Biological Nutrient Removal BNR Operation in Wastewater Treatment Plants WEF Manual of Practice No 30 written by Water Environment Federation and published by McGraw Hill Professional. This book was released on 2006 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: MOP 109 & WEF MOP 30 describes the theory, equipment, and practical techniques needed to optimize BNR in varied environments.

Download or read book Biological Nutrient Removal BNR Operation in Wastewater Treatment Plants written by Water Environment Federation and published by McGraw Hill Professional. This book was released on 2005-11-15 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: BNR is a fast-growing method of removing biological pollutants (bacteria, etc.) from wastewater. Experts from both the Water Environment Federation and the American Society of Civil Engineers have collaborated on this definitive work which is intended to be a practical manual for plant managers and operators who needed current information on BNR.

Download or read book Activated Sludge and Nutrient Removal written by Water Environment Federation and published by Manual of Practice. This book was released on 2017-08-09 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activated Sludge and Nutrient Removal guides you through selecting an appropriate sludge age, calculating wasting rates, optimizing return activated sludge flow, managing clarifier blankets, and setting DO and ORP set points.

Download or read book Biological Nutrient Removal Bnr Operation Study Guide written by Water Environment Federation and published by . This book was released on 2005-01-01 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrient removal is being required at many plants throughout the United States, Europe, and Asia. Virtually all of the plants use biological processes for nitrogen, phosphors, and/or ammonia removal. Operating a biological nutrient removal (BNR) process can be complex and requires a high level of operator involvement and knowledge. Containing, 100 problems and solutions, lists of conversion factors, an acronym list, and a glossary, this study guide is a valuable resource for operators, engineers, consultants and regulatory agency staff.

Download or read book Advances in Yeast Biotechnology for Biofuels and Sustainability written by Achlesh Daverey and published by Elsevier. This book was released on 2023-05-23 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Yeast Biotechnology for Biofuels and Sustainability: Value-Added Products and Environmental Remediation Applications showcases the uses for engineered yeast in environmental applications, especially as an innovative source of biofuels. Beginning with a thorough review of recent advances and future potential for yeast biotechnology, the book proceeds to outline several options for biofuels, including lignocellulosic biofuels and alternative feedstock production through hydrolysis and alternative value-added products, including industrial acids and bioplastics and applications in agriculture and environmental remediation. Placing case studies at the center of each chapter, this book presents a future-focused perspective on the potential of yeast biotechnologies to support sustainability. - Lays out methods, including multiple options for generating biofuels from engineered yeast and several additional value-added products - Presents a wide variety of real-world sustainable applications for engineered yeast, with a focus on biofuels production - Provides a selection of case studies in other value-added products and applications, including bioremediation, pollution remediation, and biofertilizers in sustainable agriculture

Download or read book Nitrification and Denitrification in the Activated Sludge Process written by Michael H. Gerardi and published by John Wiley & Sons. This book was released on 2003-03-19 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrification and Denitrification in the Activated Sludge Process, the first in a series on the microbiology of wastewater treatment, comprises the critical topics of cost-effective operation, permit compliance, process control, and troubleshooting in wastewater treatment plants. Avoiding the technical jargon, chemical equations, and kinetics that typically accompany such texts, Nitrification and Denitrification in the Activated Sludge Process directly addresses plant operators and technicians, providing necessary information for understanding the microbiology and biological conditions that occur in the treatment process. Of special interest to wastewater treatment plant operators are the bacteria that degrade nitrogenous wastes–the nitrifying bacteria–and the bacteria that degrade carbonaceous wastes–the cBOD-removing bacteria. Both groups of bacteria need to be routinely monitored and operational conditions favorably adjusted to ensure desired nitrification. Each chapter in this groundbreaking study offers a better understanding of the importance of nitrification and denitrification and the bacteria involved in these crucial processes. Chapters include: Organotrophs The Wastewater Nitrogen Cycle Nitrite Ion Accumulation Dissolved Oxygen Denitrifying Bacteria Gaseous End Products Free Molecular Oxygen The Occurrence of Denitrification

Download or read book Activated Sludge Developments And Sustainable Solutions written by Nicholas F Gray and published by World Scientific. This book was released on 2023-02-27 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activated sludge is the most widely used biological wastewater treatment process globally to date, although its high energy demand makes it a major contributor of greenhouse gas emissions. Over recent decades it has been constantly modified and retrofitted to treat ever higher loads or improve effluent standards which have often resulted in even greater carbon emissions. Conventional activated sludge treatment is at a crossroads where new sustainable solutions are required if we are to protect the quality of our rivers and meet net-zero carbon targets.The book details current operation and design with special emphasis on the biological aspects of the process. From the microbial kinetics to the fascinating process of floc formation and development, the book explores the development of our understanding of the process looking at new sustainable designs, including biological nutrient removal and new aeration systems. Sludge separation problems and control options are explained, with a trouble-shooting guide to non-bulking problems. Environmental issues including noise, odor, aerosols, micro-plastics and nanoparticles are all reviewed, as is pathogen removal and the problem of antibiotic resistant genes and bacteria. The development of membrane bioreactors has increased process reliability and effluent quality, while integrated fixed-film activated sludge processes are more efficient and compact. The book concludes by exploring how activated sludge can become more sustainable, for example, by carbon harvesting and byproduct recovery.This interdisciplinary book is essential reading for both engineers and scientists whether training at university or practitioners and consultants in the wastewater industry.Related Link(s)

Download or read book Biological Nutrient Removal BNR Operation in Wastewater Treatment Plants written by and published by . This book was released on 2006 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nutrient Removal WEF MOP 34 written by Water Environment Federation and published by McGraw-Hill Education. This book was released on 2010-10-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product.The Latest Methods for Nutrient Removal from Wastewater This Water Environment Federation resource provides comprehensive information on biological and chemical methods for nitrogen and phosphorus removal from wastewater. Nutrient Removal covers environmental and regulatory issues and provides an integrated approach for combined nitrogen and phosphorus removal, including details on ammonia and dewatering liquors treatment. Natural treatment systems are also discussed in this definitive guide. Nutrient Removal covers: Nutrients and their effects on the environment Regulation of nutrients in the effluents of wastewater treatment plants Overview of the nutrient removal processes Principles of biological nitrogen removal Nitrification Nitrogen removal processes, configuration, and process-sizing criteria for combined nitrification and denitrification processes Chemical and biological phosphorus removal Sidestream nitrogen removal Structured process models for nutrient removal Troubleshooting for full-scale nutrient removal facilities Aquatic natural treatment systems

Download or read book Spellman s Standard Handbook for Wastewater Operators 3 Volume Set written by Frank R. Spellman and published by CRC Press. This book was released on 2010-08-30 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hailed on first publication as a straightforward, practical, and to-the-point account of wastewater principles, practices, and operations for general readers, students, and wastewater operators in training and for all levels of operators at any level of licensure, Spellman's Standard Handbook for Wastewater Operators, Volumes I, II, and III almost

Download or read book Spellman s Standard Handbook for Wastewater Operators written by Frank R. Spellman and published by CRC Press. This book was released on 2010-08-30 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Retaining the same successful and proven format used in the bestselling first edition, Spellman’s Standard Handbook for Wastewater Operators: Volume I, Fundamental Level, Second Edition contains the necessary information to successfully study for and pass currently administered certification examinations. Primarily designed to provide a readily accessible, user-friendly source of information for review in preparing for the first levels of licensure, this volume also sets the stage for Volumes II and III. Revised and expanded with additional information and example problems, changes to this volume include: A new chapter on basic microbiology More than double the amount of water hydraulics and pumping information More operational computation problems and examples in all major topic areas The book provides review questions and answers as well as a comprehensive practice examination for measuring the level of knowledge attained through study, on the job experience, and other sources. By using the final examination as a measuring stick, readers can determine strong and weak points. Appendix C contains a formula sheet to be used for reference when taking the final examination. Constructed in a way that allows readers to build their knowledge base, step by step, page by page, as they progress through the material, the handbook represents a basic summary of expert information and includes references to many other sources. Also available as a volume in Spellman's Standard Handbook for Wastewater Operators, Second Edition (3 Volume Set)

Download or read book Characterizing Mechanisms of Simultaneous Biological Nutrient Removal During Wastewater Treatment written by P. F. Strom and published by IWA Publishing. This book was released on 2004-01-01 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Simultaneous biological nutrient removal (SBNR) is the removal of nitrogen and/or phosphorus in excess of that required for biomass synthesis in biological wastewater treatment systems where there are no defined anaerobic and/or anoxic zones. The hypothesis is that one or more of three mechanisms is responsible within individual systems: variations in the bioreactor macroenvironment created by the mixing pattern, gradients within the floc microenvironment, and/or novel microorganism activity. Understanding of the mechanisms of SBNR can be expected to lead to improved efficiency and reliability in its application. Preliminary work documented SBNR in 7 full-scale OrbalTM closed loop bioreactors. A batch assay demonstrated that novel microorganism activity was of little importance in SBNR at the three plants tested. While the floc microenvironment likely plays an important role in nitrogen removal in such plants, it cannot explain phosphorus removal. A computational fluid dynamics (CFD) model was developed to elucidate the role of the bioreactor macroenvironment in SBNR. This is the first reported application of CFD to activated sludge biological wastewater treatment. Although the software and computational requirements limited model complexity, it still simulated the creation of dissolved oxygen gradients within the system, demonstrating that the anaerobic zones required for SBNR could occur.

Download or read book Microbial Consortium and Biotransformation for Pollution Decontamination written by Gowhar Hamid Dar and published by Elsevier. This book was released on 2022-05-26 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial Consortium and Biotransformation for Pollution Decontamination presents techniques for the decontamination of polluted environs through potential microbes, particularly examining the benefits of its broad applicability, sustainability and eco-friendly nature. Utilizing global case studies to describe practical applications of the technology, the book offers insights into the latest research on advanced microbiological tools and techniques for the remediation of severe pollutants from the environment. Environmental researchers and environmental managers focusing on pollution and decontamination will find both key contextual information and practical details that are essential in understanding the use of microbial technology for combatting pollutants. Recent advancements in the field of NGS (next-generation sequencing) have allowed more detailed genomic, bioinformatics and metagenomic analyses of potential environmentally important microbes that have led to significant breakthroughs into key bio-degradative pathways. With the increase in human activities around the globe, toxic pollutants from multiple sources have contaminated the earth on a large number scale. - Explores advanced microbiological tools and techniques for the remediation of severe pollutants from the environment - Presents practical case studies and examples of the use of microbial technology for decontamination from across the globe - Provides insights into key elements of microbiological consortia and their role in decontamination, particularly the impact of these techniques on sustainability, ecology and economy

Download or read book Technical Guide on Biological Nutrient Removal written by M. J. N. P. Simpkins and published by . This book was released on 1981 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Nitrogen Removal Activated Sludge Process in Warm Climates written by Cao Ye Shi and published by IWA Publishing. This book was released on 2008-04-14 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: Special Offer: Cao Ye Shi Author Set - Buy all three books together and save a total £76! Many Biological Nitrogen Removal (BNR) activated sludge processes in warm climates are conservatively designed, because little systematic investigation has been carried out on the BNR activated sludge process in warm or tropical climates, although many studies under temperate climate conditions are available. This book covers a wide spectrum of mechanistic approaches to deal with BNR activated sludge related issues such as sewage and sludge characterization, dynamic performance of full-scale processes, laboratory simulation and modelling that leads to a mechanistic and more economic design. Recommendations on the operation, upgrading and design of BNR activated sludge process are formulated. This will significantly aid the promotion of nitrogen removal in wastewater treatment plants in warm or tropical climates, particularly in developing countries. The book has three purposes: to make recommendations for appropriate upgrading of existing activated sludge processes and assess the performance of the upgraded activated sludge processes; to explore the feasibility of employing laboratory-scale systems to simulate the performance of full-scale processes; and to use mathematical modelling calibrated with the measured data obtained from the laboratory-scale experimentation to study the performance and the design of full-scale processes. Reports are presented of comprehensive studies on: (i) on-site investigation of the activated sludge processes in three water reclamation plants (WRPs) in Singapore; (ii) laboratory-scale investigations to simulate the performance of full-scale activated sludge processes and to optimize the process design; and (iii) mathematical modelling and simulation with Activated Sludge Model No. 1 (ASM No. 1). Based on these detailed studies, guidelines on the operation, upgrading and design of the BNR activated sludge process in warm climates are presented. Results indicate that the laboratory-scale systems, designed based on the scale-down principles developed in this study and mathematic simulation with the model parameters calibrated by using the data obtained from the laboratory experiment, were able to describe the performance of the full-scale process.The applications of the approaches and principles are not limited to geographic locations and types of pollutants, and thus can reduce significantly the cost and time for the process development of the activated sludge process. This book will be an invaluable reference source for process and design engineers and consultants concerned with biological wastewater treatment as well as researchers in universities and research institutes.