Download or read book Critical Issues for Wastewater Professionals written by Rick Allen and published by . This book was released on 2016-07-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: To this end Critical Issues for Wastewater Professionals is divided into five chapters: The first chapter, "We Have a Problem" addresses issues greatly affecting current and future WWTPs: increased demand, undersized and outdated facilities, decreased budgets and compliance issues.The second chapter, "WWTP Operations: The Three Deadly Sins!" discusses current and future options in dealing with difficult problems: toxic shock, hydrogen sulfide and low flow.The third chapter, "Lost in the FOG," is entirely devoted to current and future collection system issues: FOG, lift station problems, slow/clogged trunk lines and forced mains.The fourth chapter, "Sludge Happens," is (you guessed it!) all about sludge: what it is; common problems, its impact on the wastewater treatment process; sludge management and emerging sludge reduction strategies. The fifth chapter, "Those Bloomin' (!*!*!*) Algae!" discusses the effect of algal blooms on lagoons, ponds and wetlands; anticipated regulations; algal bloom treatments and an emerging solution.
Download or read book A B processes Towards Energy Self sufficient Municipal Wastewater Treatment written by Yu Liu and published by IWA Publishing. This book was released on 2019-11-15 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: The principle of the conventional activated sludge (CAS) for municipal wastewater treatment is primarily based on biological oxidation by which organic matters are converted to biomass and carbon dioxide. After more than 100 years’ successful application, the CAS process is receiving increasing critiques on its high energy consumption and excessive sludge generation. Currently, almost all municipal wastewater treatment plants with the CAS as a core process are being operated in an energy-negative fashion. To tackle such challenging situations, there is a need to re-examine the present wastewater treatment philosophy by developing and adopting novel process configurations and emerging technologies. The solutions going forward should rely on the ways to improve direct energy recovery from wastewater, while minimizing in-plant energy consumption. This book begins with a critical overview of the energy situation and challenges in current municipal wastewater treatment plants, showing the necessity of the paradigm shift from removal to recovery in terms of energy and resource. As such, the concept of A-B process is discussed in detail in the book. It appears that various A-B process configurations are able to provide possible engineering solutions in which A-stage is primarily designed for COD capture with the aim for direct anaerobic treatment without producing excessive biosludge, while B-stage is designated for nitrogen removal. Making the wastewater treatment energy self-sustainable is obviously of global significance and eventually may become a game changer for the global market of the municipal wastewater reclamation technology. The principal audiences include practitioners, professionals, university researchers, undergraduate and postgraduate students who are interested and specialized in municipal wastewater treatment and process design, environmental engineering, and environmental biotechnology.
Download or read book Wastewater Irrigation and Health written by Pay Drechsel and published by IWMI. This book was released on 2010 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 2009. Routledge is an imprint of Taylor & Francis, an informa company.
Download or read book Protecting Wastewater Professionals from Covid 19 and Other Biological Hazards written by Water Environment Federation and published by . This book was released on 2020-11-11 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: The unprecedented global pandemic of SARS-CoV-2 virus causing the COVID-19 disease prompted the Water Environment Federation (WEF) to conduct a critical review of pathways of potential exposure to this virus associated with the collection and treatment of wastewater. In April 2020, WEF convened a panel of academics and practitioners expert in the science and practice of wastewater collection and treatment to conduct this critical review. Protecting Wastewater Professionals From Covid-19 and Other Biological Hazards features updates to WEF's Manual of Practice No. 1, Safety, Health, and Security in Wastewater Systems. These updates concern protecting health and safety workers from biological hazard exposures associated with wastewater, including viruses like SARS-CoV-2. Then, a review of worker health and safety best practice guidelines culminates in recommendations regarding exposure to biological hazards associated with wastewater. Examples of a Job Safety Analysis (JSA), a key component to these recommendations, are found in the publication's appendix. Finally, a review of current, relevant peer-reviewed literature identifies and reports on gaps in the knowledge base specific to
Download or read book Water and Wastewater Treatment written by Joanne E. Drinan and published by CRC Press. This book was released on 2012-07-20 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lauded for its engaging, highly readable style, the best-selling first edition became the premier guide for nonengineers involved in water and wastewater treatment operations. Water and Wastewater Treatment: A Guide for the Nonengineering Professional, Second Edition continues to provide a simple, nonmathematical account of the unit processes used to treat both drinking water and wastewater. Completely revised and expanded, this second edition adds new material on technological advances, regulatory requirements, and other current issues facing the water and wastewater industries. Using step-by-step, jargon-free language, the authors present all the basic unit processes involved in drinking water and wastewater treatment. They describe each unit process, the function of the process in water or wastewater treatment, and the basic equipment used in each process. They also explain how the processes fit together within a drinking water or wastewater treatment system and discuss the fundamental concepts that constitute water and wastewater treatment processes as a whole. Avoiding mathematics, chemistry, and biology, the book includes numerous illustrations for easy comprehension of concepts and processes. It also contains chapter summaries and an extensive glossary of terms and abbreviations for quick reference.
Download or read book Nature Based Solutions for Wastewater Treatment written by Katharine Cross and published by IWA Publishing. This book was released on 2021-08-15 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are 2.4 billion people without improved sanitation and another 2.1 billion with inadequate sanitation (i.e. wastewater drains directly into surface waters), and despite improvements over the past decades, the unsafe management of fecal waste and wastewater continues to present a major risk to public health and the environment (UN, 2016). There is growing interest in low cost sanitation solutions which harness natural systems. However, it can be difficult for wastewater utility managers to understand under what conditions such nature-based solutions (NBS) might be applicable and how best to combine traditional infrastructure, for example an activated sludge treatment plant, with an NBS such as treatment wetlands. There is increasing scientific evidence that treatment systems with designs inspired by nature are highly efficient treatment technologies. The cost-effective design and implementation of ecosystems in wastewater treatment is something that exists and has the potential to be further promoted globally as both a sustainable and practical solution. This book serves as a compilation of technical references, case examples and guidance for applying nature-based solutions for treatment of domestic wastewater, and enables a wide variety of stakeholders to understand the design parameters, removal efficiencies, costs, co-benefits for both people and nature and trade-offs for consideration in their local context. Examples through case studies are from across the globe and provide practical insights into the variety of potentially applicable solutions.
Download or read book Uncertainty in Wastewater Treatment Design and Operation written by Evangelia Belia and published by IWA Publishing. This book was released on 2021-11-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific and Technical Report No. 21 Uncertainty in Wastewater Treatment Design and Operation aims to facilitate the transition of the wastewater profession to the probabilistic use of simulators with the associated benefits of being better able to take advantage of opportunities and manage risk. There is a paradigm shift taking place in the design and operation of treatment plants in the water industry. The market is currently in transition to use modelling and simulation while still using conventional heuristic guidelines (safety factors). Key reasons for transition include: wastewater treatment simulation software advancements; stricter effluent requirements that cannot be designed for using traditional approaches, and increased pressure for more efficient designs (including energy efficiency, green house gas emission control). There is increasing consensus among wastewater professionals that the performance of plants and the predictive power of their models (degree of uncertainty) is a critical component of plant design and operation. However, models and simulators used by designers and operators do not incorporate methods for the evaluation of uncertainty associated with each design. Thus, engineers often combine safety factors with simulation results in an arbitrary way based on designer ‘experience’. Furthermore, there is not an accepted methodology (outside modelling) that translates uncertainty to assumed opportunity or risk and how it is distributed among consultants/contractors and owners. Uncertainty in Wastewater Treatment Design and Operation documents how uncertainty, opportunity and risk are currently handled in the wastewater treatment practice by consultants, utilities and regulators. The book provides a useful set of terms and definitions relating to uncertainty and promotes an understanding of the issues and terms involved. It identifies the sources of uncertainty in different project phases and presents a critical review of the available methods. Real-world examples are selected to illustrate where and when sources of uncertainty are introduced and how models are implemented and used in design projects and in operational optimisation. Uncertainty in Wastewater Treatment Design and Operation defines the developments required to provide improved procedures and tools to implement uncertainty and risk evaluations in projects. It is a vital reference for utilities, regulators, consultants, and trained management dealing with certainty, opportunity and risk in wastewater treatment.
Download or read book Practitioner s Handbook of Risk Management for Water Wastewater Systems written by Gordon Graham and published by CRC Press. This book was released on 2021-11-23 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Real risk management is predicated on the eventuality of human erraticism and therefore necessitates the design of resilient systems, such as control measures, policies, procedures, processes, rules, checklists, and protocols, to protect organizations against unpredictability. However, these systems aren’t enough to prevent tragedies, they must be paired with an organizational culture that drives employee understanding, adherence, questioning, and enforcement of these systems. Success is conditioned on this interdependent relationship, meaning employees do the right thing, the right way every time, as they unequivocally support the underlying rationale of their organizational systems, mission, and purpose. This dynamic, inculcated way of thinking is intrinsic to high-reliability organizations and should be the aspiration of all executives, managers, and supervisors. Authors Gordon Graham and Paul Fuller impart a wide range of practical information on resilient systems- as these thoughtfully designed protocols, kept up-to-date and properly implemented, serve to minimize organizational risk in the water and wastewater industry. Features: Offers guidance for organizations to maximize service, enhance safety, and minimize liability. Presents fundamental background on risk, systems, risk management, as well as factors leading to industrial tragedies and how to avoid or mitigate them. Includes practical examples to demonstrate the necessary steps to transform a water facility into a highly reliable and safe organization. Centering on organizational risk management, Practitioner’s Handbook of Risk Management for Water & Wastewater Systems provides the investigative tools for risk assessments and risk/frequency matrixes to effectively recognize and prioritize the thousands of risks facing professionals working in the water and wastewater industry today.
Download or read book Risk Management for Water and Wastewater Utilities written by Simon Pollard and published by IWA Publishing. This book was released on 2016-05-15 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water risks and security are a major global hazard in the 21st century and it is essential that water professionals have a solid grounding in the principles of preventative risk management. This second edition of the key textbook, Risk Management for Water and Wastewater Utilities, extends beyond first principles and examines the practicalities of resilience and vulnerability assessment, strategic risk appraisal and the interconnectedness of water utility risks in a networked infrastructure. It provides an up-dated overview of tools and techniques for risk management in the context of the heightened expectations for sound risk governance that are being made of all water and wastewater utilities. Risk Management for Water and Wastewater Utilities provides a valuable starting point for newly appointed risk managers in the utility sector and offers MSc level self-paced study with self-assessment questions and abbreviated answers, key learning points, case studies and worked examples.
Download or read book Need to Know written by Scott Minamyer and published by . This book was released on 2012 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the events of September 11, 2001, improving the security of our nation's drinking water and wastewater infrastructure has been a high priority. As critical infrastructure, water systems can be subject to intentional attacks as well as unintentional contamination and must be protected. The U.S. Environmental Protection Agency (EPA) plays a critical role in this effort as the lead federal agency for water security. This investigation was undertaken at the request of EPA to conduct research to: (1) compare public and drinking water professional personnel's assessments of critical information needs arising from the intentional contamination of a municipal water supply; and (2) obtain public evaluation of draft messages developed for such an occasion. The Oak Ridge Institute for Science and Education provided technical assistance. Information was collected from both utility professionals and members of the public (water consumers) in four metropolitan areas in the United States (northeastern, southeastern, midwestern and western). Twenty-four one-hour discussions were held with a total of 38 drinking water utility professionals. Four two-hour focus groups with members of the general public who use the municipal water supply were conducted in each of the four study cities, with a total of 113 respondents participating.
Download or read book From Source Water to Drinking Water written by Institute of Medicine and published by National Academies Press. This book was released on 2004-11-01 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Institute of Medicine's Roundtable on Environmental Health Sciences, Research, and Medicine was established in 1988 as a mechanism for bringing the various stakeholders together to discuss environmental health issues in a neutral setting. The members of the Roundtable on Environmental Health Sciences, Research, and Medicine come from academia, industry, and government. Their perspectives range widely and represent the diverse viewpoints of researchers, federal officials, and consumers. They meet, discuss environmental health issues that are of mutual interest, and bring others together to discuss these issues as well. For example, they regularly convene workshops to help facilitate discussion of a particular topic. The Rountable's fifth national workshop entitled From Source Water to Drinking Water: Ongoing and Emerging Challenges for Public Health continued the theme established by previous Roundtable workshops, looking at rebuilding the unity of health and the environment. This workshop summary captures the discussions and presentations by the speakers and participants, who identified the areas in which additional research was needed, the processes by which changes could occur, and the gaps in our knowledge.
Download or read book Issues in Potable Reuse written by National Research Council and published by National Academies Press. This book was released on 1998-07-23 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: A small but growing number of municipalities are augmenting their drinking water supplies with highly treated wastewater. But some professionals in the field argue that only the purest sources should be used for drinking water. Is potable reuse a viable application of reclaimed water? How can individual communities effectively evaluate potable reuse programs? How certain must "certain" be when it comes to drinking water safety? Issues in Potable Reuse provides the best available answers to these questions. Useful to scientists yet accessible to concerned lay readers, this book defines important terms in the debate and provides data, analysis, and examples of the experience of municipalities from San Diego to Tampa. The committee explores in detail the two major types of contaminants: Chemical contaminants. The committee discusses how to assess toxicity, reduce the input of contaminants, evaluate treatment options, manage the byproducts of disinfection and other issues. Microbial contaminants, including newly emerging waterborne pathogens. The book covers methods of detection, health consequences, treatment, and more. Issues in Potable Reuse reviews the results of six health effects studies at operational or proposed reuse projects. The committee discusses the utility of fish versus mammals in toxicology testing and covers issues in quality assurance.
Download or read book Onsite Wastewater Treatment Systems Manual written by and published by . This book was released on 2002 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This manual contains overview information on treatment technologies, installation practices, and past performance."--Introduction.
Download or read book Envisioning the Agenda for Water Resources Research in the Twenty First Century written by National Research Council and published by National Academies Press. This book was released on 2001-06-05 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this century, the United States will be challenged to provide sufficient quantities of high-quality water to its growing population. Water is a limiting resource for human well-being and social development, and projections of population growth as well as changing social values suggest that demands for this resource will increase significantly. These projections have fueled concerns among the public and water resources professionals alike about the adequacy of future water supplies, the sustainability and restoration of aquatic ecosystems, and the viability of our current water resource research programs and our institutional and physical water resource infrastructures. With the goal of outlining a roadmap to guide policymakers, the Water Science and Technology Board (WSTB) held a series of discussions at several of its meetings in 1998-2000 about the future of the nation's water resources and the appropriate research needed to achieve their long-term sustainability. From those discussions, the board produced this report, the objectives of which are to: draw attention to the urgency and complexity of water resources issues facing the United States in the twenty-first century; broadly inform decision makers, researchers, and the public about these issues and challenges; identify needed knowledge and corresponding water resources research areas that should be emphasized immediately and over the long term; and describe ways in which the setting of the water research agenda, the conduct of water research, and investments devoted to such research should be improved in the next few decades. This report discusses major research questions related to the critical water issues that face the nation. It lays out an interdisciplinary research portfolio for the next 20 years and recommends agenda-setting processes that can maximize the nation's ability to prioritize and conduct water resources research.
Download or read book Managing Wastewater in Coastal Urban Areas written by National Research Council and published by National Academies Press. This book was released on 1993-02-01 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: Close to one-half of all Americans live in coastal counties. The resulting flood of wastewater, stormwater, and pollutants discharged into coastal waters is a major concern. This book offers a well-delineated approach to integrated coastal management beginning with wastewater and stormwater control. The committee presents an overview of current management practices and problems. The core of the volume is a detailed model for integrated coastal management, offering basic principles and methods, a direction for moving from general concerns to day-to-day activities, specific steps from goal setting through monitoring performance, and a base of scientific and technical information. Success stories from the Chesapeake and Santa Monica bays are included. The volume discusses potential barriers to integrated coastal management and how they may be overcome and suggests steps for introducing this concept into current programs and legislation. This practical volume will be important to anyone concerned about management of coastal waters: policymakers, resource and municipal managers, environmental professionals, concerned community groups, and researchers, as well as faculty and students in environmental studies.
Download or read book Water Science Policy and Management written by Simon James Dadson and published by John Wiley & Sons. This book was released on 2020-01-07 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an in-depth look at science, policy and management in the water sector across the globe Sustainable water management is an increasingly complex challenge and policy priority facing global society. This book examines how governments, municipalities, corporations, and individuals find sustainable water management pathways across competing priorities of water for ecosystems, food, energy, economic growth and human consumption. It looks at the current politics and economics behind the management of our freshwater ecosystems and infrastructure and offers insightful essays that help stimulate more intense and informed debate about the subject and its need for local and international cooperation. This book celebrates the 15-year anniversary of Oxford University’s MSc course in Water Science, Policy and Management. Edited and written by some of the leading minds in the field, writing alongside alumni from the course, Water Science, Policy and Management: A Global Challenge offers in-depth chapters in three parts: Science; Policy; and Management. Topics cover: hydroclimatic extremes and climate change; the past, present, and future of groundwater resources; water quality modelling, monitoring, and management; and challenges for freshwater ecosystems. The book presents critical views on the monitoring and modelling of hydrological processes; the rural water policy in Africa and Asia; the political economy of wastewater in Europe; drought policy management and water allocation. It also examines the financing of water infrastructure; the value of wastewater; water resource planning; sustainable urban water supply and the human right to water. Features perspectives from some of the world’s leading experts on water policy and management Identifies and addresses current and future water sector challenges Charts water policy trends across a rapidly evolving set of challenges in a variety of global areas Covers the reallocation of water; policy process of risk management; the future of the world’s water under global environmental change; and more Water Science, Policy and Management: A Global Challenge is an essential book for policy makers and government agencies involved in water management, and for undergraduate and postgraduate students studying water science, governance, and policy.
Download or read book Water and Wastewater Finance and Pricing written by George A. Raftelis and published by CRC Press. This book was released on 2014-07-24 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Strategy Guide for Water Utility Managers and Executives, and a Compendium of Best Financial Practices for Utility Financial Leaders, a "How-To" Guide for Rate and Finance Technicians and a Reference Point for Policymakers Detailing utility financial plans and rate structures, and highlighting how they align with community sustainability goals and utility objectives, is the focus of the fourth edition of Water and Wastewater Finance and Pricing: The Changing Landscape. Working from a historical perspective, this revised and updated text addresses the current pricing and financial management challenges involved in the water and wastewater industry. It builds on the concepts used in the standard manuals of the American Water Works Association and the Water Environment Federation, and offers additional insight into the long-term sustainability of water systems. Provides Practical Applications of Finance and Pricing Approaches This comprehensive guide to financial and pricing practices delves into a number of factors that have impacted how utility finances its capital program and how it structures rates to recover revenue requirements. Among numerous management challenges, the book addresses such issues as reduced per capita usage and customer demand, a weak economy, social media, balancing community environmental sustainability with financial sufficiency, an increased focus on water demand management and efficiency, and the concern over rate affordability. The author factors in the rate-setting process, implementing a cost-of-service and rate model as key input in each chapter, and also presents a strong financial and rate plan for achieving long-term sustainability. What’s New in the Fourth Edition: Presents cutting-edge management approaches and initiatives, and the importance of strong financial management in addressing strategic financial and pricing goals Expands the discussion on traditional financing options, factoring in the current economic climate Explores in detail how to integrate risk considerations into the development of effective financial and rate plans. Includes techniques for projecting demand by retail, wholesale and other customer classes Provides methodologies for the development of water reuse, wholesale, and wheeling rates Contains computer models that include scenario builders, rate dashboards, and graphical presentations of key rate and financing concepts Discusses effective public education approaches to gain stakeholder support of a utility’s financial and rate plan Introduces "triple bottom line" concepts into selecting an appropriate financial and rate plan Expands the concepts of water and wastewater financial planning into the stormwater discipline Water and Wastewater Finance and Pricing: The Changing Landscape, Fourth Edition focuses on water and wastewater financial management and pricing, and is geared toward professionals assigned to develop water and wastewater financial plans and rates, senior managers with the responsibility for the long term financial sustainability of the utility, investors evaluating the financial strength of utilities, engineers/consultants planning water and wastewater facilities, academics teaching financial and pricing principles as a part of public policy curriculum, regulators needing to understand the financial viability of utilities under their purview, and policy makers desiring to support effective financial and rate plans for their constituencies.
