An Operator's Guide to Biological Nutrient Removal (BNR) in the Activated Sludge Process

An Operator's Guide to Biological Nutrient Removal (BNR) in the Activated Sludge Process
Author: Michael H. Gerardi
Publisher: Chemical Publishing Company
Total Pages: 176
Release: 2016-05-19
Genre: Technology & Engineering
ISBN: 082060416X

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. -

An Operator's Guide to Biological Nutrient Removal (BNR) in the Activated Sludge Process

An Operator's Guide to Biological Nutrient Removal (BNR) in the Activated Sludge Process
Author: Michael H. Gerardi
Publisher:
Total Pages: 156
Release: 2016
Genre: Sewage
ISBN: 9781523102839

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.

Advances in Yeast Biotechnology for Biofuels and Sustainability

Advances in Yeast Biotechnology for Biofuels and Sustainability
Author: Achlesh Daverey
Publisher: Elsevier
Total Pages: 630
Release: 2023-05-23
Genre: Technology & Engineering
ISBN: 0323954502

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

Handbook of Water and Wastewater Treatment Plant Operations

Handbook of Water and Wastewater Treatment Plant Operations
Author: Frank R. Spellman
Publisher: CRC Press
Total Pages: 904
Release: 2013-10-21
Genre: Technology & Engineering
ISBN: 1466553383

Handbook of Water and Wastewater Treatment Plant Operations the first thorough resource manual developed exclusively for water and wastewater plant operators has been updated and expanded. An industry standard now in its third edition, this book addresses management issues and security needs, contains coverage on pharmaceuticals and personal care products (PPCPs), and includes regulatory changes. The author explains the material in layman’s terms, providing real-world operating scenarios with problem-solving practice sets for each scenario. This provides readers with the ability to incorporate math with both theory and practical application. The book contains additional emphasis on operator safety, new chapters on energy conservation and sustainability, and basic science for operators. What’s New in the Third Edition: Prepares operators for licensure exams Provides additional math problems and solutions to better prepare users for certification exams Updates all chapters to reflect the developments in the field Enables users to properly operate water and wastewater plants and suggests troubleshooting procedures for returning a plant to optimum operation levels A complete compilation of water science, treatment information, process control procedures, problem-solving techniques, safety and health information, and administrative and technological trends, this text serves as a resource for professionals working in water and wastewater operations and operators preparing for wastewater licensure exams. It can also be used as a supplemental textbook for undergraduate and graduate students studying environmental science, water science, and environmental engineering.

Microbial Consortium and Biotransformation for Pollution Decontamination

Microbial Consortium and Biotransformation for Pollution Decontamination
Author: Gowhar Hamid Dar
Publisher: Elsevier
Total Pages: 458
Release: 2022-05-26
Genre: Science
ISBN: 032391926X

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

Mathematical Modelling and Computer Simulation of Activated Sludge Systems

Mathematical Modelling and Computer Simulation of Activated Sludge Systems
Author: Jacek Makinia
Publisher: IWA Publishing
Total Pages: 682
Release: 2020-03-02
Genre: Science
ISBN: 1780409516

Mathematical Modelling and Computer Simulation of Activated Sludge Systems – Second Edition provides, from the process engineering perspective, a comprehensive and up-to-date overview regarding various aspects of the mechanistic (“white box”) modelling and simulation of advanced activated sludge systems performing biological nutrient removal. In the new edition of the book, a special focus is given to nitrogen removal and the latest developments in modelling the innovative nitrogen removal processes. Furthermore, a new section on micropollutant removal has been added. The focus of modelling has been shifting in the last years to models that can describe the performance of a whole plant (plant-wide modelling). The expanded part of this new edition introduces models describing the most important processes interrelated with the mainstream activated sludge systems as well as models describing the energy balance, operating costs and environmental impact. The complex process evaluation, including minimization of energy consumption and carbon footprint, is in line with the present and future wastewater treatment goals. By combining a general introduction and a textbook, this book serves both intermediate and more experienced model users, both researchers and practitioners, as a comprehensive guide to modelling and simulation studies. The book can be used as a supplemental material at graduate and post-graduate levels of wastewater engineering/modelling courses.

Biological Nutrient Removal (BNR) Operation in Wastewater Treatment Plants : WEF Manual of Practice No. 30

Biological Nutrient Removal (BNR) Operation in Wastewater Treatment Plants : WEF Manual of Practice No. 30
Author: Water Environment Federation
Publisher: McGraw Hill Professional
Total Pages: 643
Release: 2005-10-25
Genre: Technology & Engineering
ISBN: 0071464158

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.

Spellman's Standard Handbook for Wastewater Operators

Spellman's Standard Handbook for Wastewater Operators
Author: Frank R. Spellman
Publisher: CRC Press
Total Pages: 438
Release: 2010-08-30
Genre: Technology & Engineering
ISBN: 1439818843

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)

Activated Sludge and Aerobic Biofilm Reactors

Activated Sludge and Aerobic Biofilm Reactors
Author: Marcos Von Sperling
Publisher: IWA Publishing
Total Pages: 337
Release: 2007-03-30
Genre: Science
ISBN: 1843391651

Activated Sludge and Aerobic Biofilm Reactors is the fifth volume in the series Biological Wastewater Treatment. The first part of the book is devoted to the activated sludge process, covering the removal of organic matter, nitrogen and phosphorus.A detailed analysis of the biological reactor (aeration tank) and the final sedimentation tanks is provided. The second part of the book covers aerobic biofilm reactors, especially trickling filters, rotating biological contractors and submerged aerated biofilters. For all the systems, the book presents in a clear and informative way the main concepts, working principles, expected removal efficiencies, design criteria, design examples, construction aspects and operational guidelines. About the series: The series is based on a highly acclaimed set of best selling textbooks. This international version is comprised by six textbooks giving a state-of-the-art presentation of the science and technology of biological wastewater treatment. Other titles in the series are: Volume 1: Waste Stabilisation Ponds; Volume 2: Basic Principles of Wastewater Treatment; Volume 3: Waste Stabilization Ponds; Volume 4: Anaerobic Reactors; Volume 6: Sludge Treatment and Disposal