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This Manual of Practice presents current design considerations for wastewater and stormwater pumping stations. It covers station capacity requirements and configuration, the selection and design of pumping equipment, piping system layout and hydraulic considerations, electrical and instrumentation systems design, and other station appurtenances. Intended for design professionals, it addresses design of stations of all sizes and highlights the differences between wastewater and stormwater stations.

This manual includes laboratory procedures most often performed in wastewater laboratories and includes general wet chemistry procedures, activated sludge process control tests, bacteriological testing, and special sections about basic laboratory techniques and proper use of spectrophotometers and colorimetry. Each method (procedure) is broken down into easy-to-follow, step-by-step directions that adhere to recommendations found in Standard Methods for the Examination of Water and Wastewater and approved U.S. Environmental Protection Agency guidelines. Each method (procedure) includes a sample benchsheet. The intention of this publication is to help the operator–analyst produce analytical data that are defensible, precise, and accurate for process control and permit reporting. Special emphasis is placed on quality assurance and quality control. The introduction to each method includes a brief discussion of why the test is performed and how it can be used for process control. Most methods include typical ranges for the parameter associated with different types of treatment processes. This information will help the operator–analyst determine the appropriateness of the collected samples and if results are reasonable.

The effectiveness of stormwater management programs depends largely on how well and how safely stormwater control measures (SCMs) perform over time. The importance of maintenance and the significant numbers of SCMs have created the need for guidance on how stormwater programs must adapt to address evolving SCM design and maintenance requirements, climate change and resilience, and integration of asset management concepts to reduce long-term program costs. This manual meets that need with best practices for maintenance programs, as well as case studies to show how a variety of utilities have implemented them. The material covered will be of particular use to designers of SCMs, utility managers, and O&M staff.

Improving Utilities with Systems Thinking: People, Process, and Technology is a tool for utility leaders to better understand how groups can work together to ensure better performance; value to the organization, community, and environment; coherence; and well-being of the utility through application of systems thinking and a methodology for improvement. The authors examined the management of water sector utilities from a “systems thinking”, or holistic, point of view, starting with the complete system, then defining the components, considering the interactions between them, measuring key variables of value creation and impact, making adjustments, and learning. The overall goal is to establish a knowledge-based roadmap for improvement, including practical methodologies based on science and grounded in the real needs of water sector utilities. A systems approach acknowledges that an integrated system has qualities that the sum of the individual components cannot explain. It is by a holistic view that the system can be learning and developing in a more sustainable way so that a much broader value can be created—both monetary value and better organizations performance. This could be expressed in terms of an increased well-being for all participants or components of the system, including people, components, information systems, environment, customers, and infrastructure. Utility leaders will be able to appreciate how business processes, people, governance, and technology can interact to form a better water system as they develop frameworks, models, methods, and best practices that enable the transformation to improved water sector utilities

The most comprehensive summary and literature review of biochemical oxygen demand (BOD) on the market! BOD is one of the fundamental concepts in wastewater treatment. Throughout the 1800s and the 1900s, BOD was exhaustively studied and refined, both as a concept and as an analytical procedure. Review all previous BOD work–including why technicians, scientists, plant operators, regulators, and engineers have complained about the BOD test for many years. This book is intended to serve three purposes: first and foremost, is to describe BOD as a test procedure and biological phenomenon; secondly, to describe the place of BOD within the complex of testing that is used to evaluate treatment processes; lastly, is to present the development of BOD and preserve all peer-reviewed literature citations that mark the road to the current test. Chapters detailing sediment oxygen demand, chemical oxygen demand, and total organic carbon testing and their relationship to BOD testing, as well as extensive coverage of the interferences encountered during oxygen demand testing makes this a must-have reference.

Water Quality Instrumentation provides both a theoretical explanation of how water sensors operate and a more practical discussion of how practitioners should deploy them to best effect. Readers will walk away with an enhanced understanding of the water instrumentation design, operation, and the chemistry that lies behind both, making it an invaluable resource for anyone who regularly deals with sensors—technicians and operators, researchers and engineers, and sales personnel in the water sector. The book’s accessible, comprehensive approach to water instrumentation provides both a useful reference work on sensors and a jumping off point for those interested in true expertise on the topic.

This publication provides an overview of the problem of affordability of wastewater utility bills and offers specific considerations that elected officials, utility managers, and utility staff might take into account when addressing affordability issues in their communities. This includes defining and measuring affordability, highlighting what features might be included in an assistance program for those unable to pay for basic service levels, identifying the primary targets for an assistance program and determining eligibility, listing possible performance measures for providing this assistance, and offering some case studies from communities that have been leaders in attempting to tackle these difficult issues. Affordability concerns affect customers, utilities, and the entire local community. Because of the relatively rapid increases in wastewater infrastructure costs and rates to address aging infrastructure—both now and likely into the future—this topic is more timely and important than ever before.

Technology and utilities’ application of technology have evolved significantly since the original publication of MOP 33, yet many of the core principles for the successful application of information technology (IT) remain. This new edition covers the same fundamental principles and most common systems addressed in the first edition, while updating areas where the application of technology has changed significantly and highlighting areas of growing focus or concern, including cybersecurity and data governance

This publication identifies technologies that can be applied by wastewater collection system operators to support their capacity, management, operations, and maintenance (CMOM) activities and to move from reactive operation and maintenance (O&M) to more proactive O&M activities.

Disasters faced by water resource recovery facilities include infrastructure failure, natural disasters, human-induced accidents, and multi-hazard disasters. Written for utility managers, operators, consulting engineers, emergency response planners and professionals, and public officials, this publication helps stakeholders plan for a range of emergencies, respond when disaster strikes, and recover in the wake of the event. It addresses the key elements of emergency planning and highlights the need to build resilient systems.

Polymers are excellent flocculants and are critical for use as a solids conditioner prior to thickening and dewatering equipment. Applying polymer prior to a thickening or dewatering process, or “conditioning”, is often a requirement for the thickening or dewatering equipment to successfully operate. This operator fact sheet takes readers through the basics of polymers used in thickening and dewatering processes. You will learn about different types of polymer products, how to calculate polymer dose, appropriate handling and storage of polymer products, and equipment and processes relating to make-down and activation. This information can help operators make informed decisions to save money on polymer use in water resource recovery facilities (WRRFs).

For workers in the water sector, inherent workplace conditions expose them to daily potential for serious injury. Working in the confined spaces under city streets often comes with awkward postures, incessant vibrations, extreme temperatures, and hazardous gases that can injure. For workers dealing with chemicals or risking exposure to known viruses, bacteria, protozoa, and parasites, the risks become even more complicated. Physical inspection of tanks, pipes, and reservoirs — regardless of provided safety precautions — often require workers to step into environments that carry these risks as well as potential for catastrophic physical traumas.As a result, safety is a necessity. While strict adherence to departmental safety protocols and the proper deployment of personal protective equipment can reduce injuries, the only way to truly eliminate these types of injuries is to keep workers from entering those dangerous environments in the first place.However, such a simple proposition, proves more difficult in real-world application. How does a utility actually inspect and repair small-diameter pipes, investigate sediment buildup in holding tanks, or evaluate a collapsed pipe or sewer tunnel without deploying personnel into that very dangerous situation?Historically, these projects often called for entire system segments to be taken off-line, tanks to be drained, or heavy equipment to dig up entire city blocks. Now, the burgeoning drone industry is bringing numerous purpose-built solutions to the aid of water and wastewater agencies looking for safer, more efficient, and more affordable options.

The prime objective of this work was to identify the major sources of internal heat generation and locations within the water recovery facility that provide the most potential for heat dispersion to the atmosphere. A facility-wide thermal energy model applied to each unit process was developed, calibrated and validated at two water recovery facilities....

WEFTEC, the largest event of its kind in North America, offers water quality professionals the best in water quality education and training. With almost 200 technical sessions, workshops, mobile sessions, local facility tours and 1,000+ exhibitors, it is the premier water conference! The WEFTEC technical program is selected through a rigorous, peer-review process, ensuring that attendees experience the highest-quality education. WEFTEC speakers are experts and innovators, leading the way in water quality. The following paper was presented at WEFTEC 2019.

This book serves as a comprehensive summary of water reclamation technologies and practices for minimizing liquid discharge for a broad range of industries. It is of use to practitioners, consultants, management, and research and development professionals who want a timely update on the technologies in use and on those technologies on the horizon to provide the highest rates of water recovery in industrial practice. The industrial sectors covered include oil and gas (unconventional oil and gas and produced and petroleum refining water), pharmaceutical, textile, automotive, manufacturing, energy, and food and beverage. The book covers a much broader perspective than North America, including technology development and sustainable applications within the water-scarce yet growing regions of Central and South America, Asia, and the Middle East.