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This book examines recent developments in river (flood) management from the viewpoint of Making Space for the River and the resulting challenges for water governance. Different examples from Europe and the United States of America are discussed that aim to ‘green’ rivers, including increasing river discharge for flood management, enhancing natural and landscape values, promoting local or regional economic development, and urban regeneration. Making Space for the River presents not only opportunities and synergies but also risks as it crosses established institutional boundaries and touches on multiple stakeholder interests, which can easily clash. Making Space for the River helps the reader to understand the policy and governance dynamics that lead to these tensions and pays attention to a variety of attempts to organize effective and legitimate governance approaches.  The book helps to realize connections between policy domains, problem frames, and goals of different actors at different levels that contribute to decisive and legitimate action. Making Space for the River has an international comparative character that sheds light upon both the country-specific governance dilemmas which relate to specific state traditions and institutional characteristics of national water management, but also uncovers interesting similarities which provide us with building blocks to formulate more generic lessons about the governance of Making Space for the River in different institutional and social contexts. The authors of this book come from a variety of disciplines including public administration, town and country planning, geography and anthropology, and these different disciplines bring multiple ways of knowing and understanding of Making Space for the River programs. The book combines interdisciplinary scientific analyses of Space for the River projects and programs with practical knowing and lessons-drawing. Making Space for the River is written for both practitioners and scholars and students of environmental policy, spatial planning, land use and water management. Editors: Jeroen Warner, Assistant Professor of Disaster Studies, Wageningen University, The Netherlands. Arwin van Buuren, Associate Professor of Public Administration, Erasmus University Rotterdam, The Netherlands. Jurian Edelenbos, Professor of Public Administration, Erasmus University Rotterdam, The Netherlands.

Sewage Treatment Plants: Economic Evaluation of Innovative Technologies for Energy Efficiency aims to show how cost saving can be achieved in sewage treatment plants through implementation of novel, energy efficient technologies or modification of the conventional, energy demanding treatment facilities towards the concept of energy streamlining. The book brings together knowledge from Engineering, Economics, Utility Management and Practice and helps to provide a better understanding of the real economic value with methodologies and practices about innovative energy technologies and policies in sewage treatment plants.

The IWA Performance Indicator System for water services is now recognized as a worldwide reference. Since it first appearance in 2000, the system has been widely quoted, adapted and used in a large number of projects both for internal performance assessment and metric benchmarking. Water professionals have benefited from a coherent and flexible system, with precise and detailed definitions that in many cases have become a standard. The system has proven to be adaptable and it has been used in very different contexts for diverse purposes. The Performance Indicators System can be used in any organization regardless of its size, nature (public, private, etc.) or degree of complexity and development. The third edition of Performance Indicators for Water Supply Services represents a further improvement of the original manual. It contains a reviewed and consolidated version of the indicators, resulting from the real needs of water companies worldwide that were expressed during the extensive field testing of the original system. The indicators now properly cover bulk distribution and the needs of developing countries, and all definitions have been thoroughly revised. The confidence grading scheme has been simplified and the procedure to assess the results- uncertainty has been significantly enhanced. In addition to the updated contents of the original edition, a large part of the manual is now devoted to the practical application of the system. Complete with simplified step-by-step implementation procedures and case studies, the manual provides guidelines on how to adapt the IWA concepts and indicators to specific contexts and objectives. This new edition of Performance Indicators for Water Supply Services is an invaluable reference source for all those concerned with managing the performance of the water supply industry, including those in the water utilities as well as regulators, policy-makers and financial agencies.

Water Management and Water Loss contains a selection of papers and articles written by various internationally recognised specialists in the field of water loss reduction. The articles have been drawn together from IWA conferences during the past 5 years and provide details of how water losses from Municipal distribution systems can be reduced. The book provides useful background information and reference materials to help explain the different approaches and interventions that are used to reduce water losses. Numerous real case studies are provided that highlight the processes and methodologies employed around the world to reduce water losses. Water Management and Water Loss covers many aspects of water loss control including, pressure management, leak detection and repair, Internal plumbing losses and retrofitting, community involvement and education/awareness, schools education and leak repair projects. Authors: Stuart Hamilton, Hydrotec Ltd.,Thorpe Underwood, Northants, UK and Ronnie McKenzie, Groenkloof, Pretoria, South Africa

The MBR market continues to experience a massive growth. The best practice in the field is constantly changing and unique quality requirements and management issues are regularly emerging. The second edition of Membrane Biological Reactors: Theory, Modeling, Design, Management and Applications to Wastewater Reuse comprehensively covers the salient features and emerging issues associated with the MBR technology. The book provides thorough coverage starting from biological aspects and fundamentals of membranes, via modeling and design concepts, to practitioners’ perspective and good application examples.In the second edition, the chapters have been updated to cover the recently emerged issues. Particularly, the book presents the current status of the technology including market drivers/ restraints and development trend. Process fundamentals (both the biological and membrane components) have received in-depth coverage in the new edition. A new chapter has been added to provide a stronger focus on reuse applications in general and the decisive role of MBR in the entire reuse chain. The second edition also comes with a new chapter containing practical design problems to complement the concepts communicated throughout the book. Other distinguishing features of the new edition are coverage of novel developments and hybrid processes for specialised wastewaters, energy efficiency and sustainability of the process, aspects of MBR process automation and recent material on case studies.The new edition is a valuable reference to the academic and professional community and suitable for undergraduate and postgraduate teaching in Environmental Engineering, Chemical Engineering and Biotechnology.

This Scientific Technical Report demonstrates meta-data strategies for water resource recovery facilities (WRRF), including the essential data validation with machine learning and traditional methods. The report is the result of extensive work from many water data experts and a utility focus group, with the dedicated application of WRRF data.Emerging trends in artificial intelligence and machine learning project unforeseen possibilities in managing our WRRF’s. Hope is built upon the large data volumes collected with high frequency from both existing sensors, as well as new uncoordinated data sources outside the fence. The data variety however makes it challenging to reuse data, especially when the purpose changes. Without a proper data description (meta-data), modelling and autonomous digitalization will be difficult, and likely remain a vision. Likewise, quantified data quality are key meta-data to decide when data are fit-for-purpose.The report aims to fill the gap of how meta-data can be used in practice to leverage the value of data in a WRRF context. The report describes existing methods and systematic methodologies to collect and reconcile meta-data describing signal generation, signal quality, and contextual meta-data. The sometimes ambiguous data terminology is clarified with real WRRF examples to endorse adoption in practice. Guidelines for data quality assessment is a central part and cover both standard sensor validation protocols, as well as a separate chapter on data analytical techniques. The latter serves as a smorgasbord with mechanistic and data-driven algorithms for online sensor quality assessment.The report is intended as a reference guide for the practitioner who aims at future proofing, but also maximizing, the current use of today’s recorded WRRF data. The content bridges theory with current practices and provides a base tool for the WRRF data practitioner.

Frontier technology in water treatment and pollutant removal is needed not only for maximizing water reuse but also for the rapid detection of contaminants in the recycled water. The UN announced the years 2018 to 2028 as the ‘International Decade for Action–Water for Sustainable Development’. To realize this mission, innovative and frontier technologies for water treatment and pollutant removal are important components. This book aims to serve as a platform for updating the scientific community with recent progress in this area, covering frontier technologies in analytical technique, physicochemical treatment, chemical treatment, and biological treatment.In Focus – a book series that showcases the latest accomplishments in water research. Each book focuses on a specialist area with papers from top experts in the field. It aims to be a vehicle for in-depth understanding and inspire further conversations in the sector.

The 1st edition of the textbook Biological Wastewater Treatment: Principles, Modelling and Design was published in 2008 and it went on to become IWA Publishing's bestseller to date. In 2020, the 2nd updated and extended edition of the textbook was published because, since 2008, the knowledge and understanding of wastewater treatment had advanced extensively and moved further away from empirically-based approaches to a fundamental first-principles approach based on chemistry, microbiology, physical and bioprocess engineering, mathematics and modelling. The updated edition has already been available for more than two years and the feedback from readers has been overwhelming - the textbook won the IWA Publishing Best Scientific Book Prize in 2022. This inspired the authors to embark on a new challenge - to prepare this complementary book Biological Wastewater Treatment: Examples and Exercises. This new book is an extension of the 2nd edition textbook; each chapter corresponds to a chapter in the textbook and is structured similarly around five sections, namely, Introduction, Learning objectives, Examples, and Exercises, with solutions provided in an annex. The overall objective of the book is to deepen, expand and test the knowledge of the reader through a set of worked out examples, followed up by exercises and questions with provided answers. Where applicable, the book is supplemented with MS Office Excel files. The book is open access and can be downloaded (together with supplements) at the publisher's website. The target readership of the book remains young water professionals, who will still be active in the field of protecting our precious water resources long after the aging professors who are leading some of these advances have retired. The authors are aware that cleaning dirty water has become more complex but also that it is even more urgent now than before, and offer this new book to help young water professionals engage with the scientific and bioprocess engineering principles of wastewater treatment science and technology with deeper insight, advanced knowledge and greater confidence built on stronger competence.

Asset management issues are and will always be key concerns for many stakeholders in the water sector. Despite this, there is still a lack of awareness and clear guidance on the topic. There has been some focus on the management of drainage pipes, but more effort needs to be dedicated to examining the various regulations, practices, and research within this discipline. It’s paramount to consider the long-term management of urban drainage assets, given the role they play in ensuring the wellbeing of our communities.Asset Management of Urban Drainage Systems is the first comprehensive handbook that deals with the asset management of infrastructure dedicated to both sewage and stormwater, including blue-green infrastructure. It gives an insight into the theoretical background of asset management itself and showcases regulations and legislation influencing it. The methods used to investigate the condition of assets, and how they can be modelled and represented while accounting for the associated limitations, are also presented. The book describes how the discipline can move from a purely condition-based approach to a service-based one using risk-management strategies, seen in the broader context of decision-making. Data management and techniques for the rehabilitation of urban drainage assets are also explored.From technicians who want to know more about the tools and methods, to researchers and students who want a broad overview, to professionals who are tasked with developing short, medium, and long-term asset management strategies, this book provides important content for a wide audience.

This book is a compilation of the knowledge shared and generated so far in the IWA Digital Water Programme. It is an insightful collection of white papers covering best practices, linking academic and industrial studies/insights with applications to give real-world examples of digital transformation. These White Papers are designed to help utilities, water professionals and all those interested in water management and stewardship issues to better understand the opportunities of digital technologies.This book covers a plethora of topics including:Instrumentation and data generationArtificial intelligence and digital twinsThe digital transformation and public healthMapping the digital transformation journey into the futureWith these topics, the aim is to present an all-encompassing reference for practitioners to use in their day-to-day activities.Through the Digital Water Programme, the IWA leverages its worldwide member expertise to guide a new generation of water and wastewater utilities on their digital journey towards the uptake of digital technologies and their integration into water services.

As global water resources face growing threats from pollution and overuse, sustainable treatment solutions are urgently needed. Among these, adsorption stands out as an effective and versatile method for removing a broad spectrum of contaminants from water and wastewater. However, optimizing adsorption for large-scale applications is a complex challenge that demands both a solid understanding of adsorption science and the use of advanced computational tools. Computational Techniques for Modelling and Simulating Adsorption Processes for (Waste)Water Treatment addresses this challenge by providing a comprehensive guide integrating core adsorption principles with cutting-edge computational approaches for enhancing adsorption efficiency and system design.Structured to lead readers from fundamental concepts to advanced applications, the book includes:•an overview of water pollution and treatment •a detailed exploration of adsorption principles and models•an introduction to general computational strategies for modelling and optimization, leading on to density functional theory, molecular dynamics, Monte Carlo simulations and QSAR techniques•AI and machine learning in adsorption modelling•computational fluid dynamics and system-level optimization. Together, these topics provide researchers, engineers, and practitioners with the tools needed to model, simulate, and optimize adsorption processes for more efficient and sustainable water treatment.

Can women bring a fresh perspective to the provision of global sanitation services? The co-authors of this book, through their strong socio-political and scientific experiences, believe this to be the case. The book offers a critical look at the challenges and solutions needed to achieve Sanitation for All, including for vulnerable people, refugees, asylum seekers, stateless, or internally displaced persons, and especially women. We present sanitation policy and decision making from the perspective of women, providing conclusions to the prevailing debates. In 2022, 43% of the world’s population lacked access to safely managed sanitation. Poor sanitation is linked to the transmission of diarrhoeal diseases, exacerbates stunting, and contributes to the spread of antimicrobial resistance. In low-income countries, 5% of deaths are associated with unsafe sanitation. Poor sanitation affects mental well-being and safety, especially for women and children. Lack of sanitation costs around 2% of GDP (a figure that increases rapidly with epidemic outbreaks) because of income losses from trade and tourism and the impact on water quality. Besides being part of our human right to water, sanitation is essential to reach the United Nations’ Sustainable Development Goals on poverty, health, education, gender, water, equity, cities and the sustainable environment. Nevertheless, convincing politicians to invest in sanitation is a daunting challenge since, in contrast to drinking water, it is not an immediate vote-winner and is perceived as an unpleasant topic for public discussion. Despite this, to achieve the SDG target by 2030, a five-fold increase on current rates of progress will be required. The role of women in sanitation planning and implementation is key, due to their leadership in communities and their ability to organise and guarantee the sustainability of systems. Furthermore, women’s care-giving nature at home and in their communities has led them to understand the importance of sanitation and being open to discussing it publicly; women stand ready to raise the profile of this subject, putting it on a higher level on the political agenda. This book is vital reading not just for women but all stakeholders and partners in the water industry, especially those working in the sanitation and hygiene sectors.

Sometimes critical information reaches us most clearly through stories told by individual voices. In this book, women working in the water industry across the globe discuss their challenges and lessons learned in relation to opportunities and advancement, disrespectful behavior, self-confidence, age, work-life balance, and mentoring. Their individual experiences reflect ways in which beliefs and practices relating to gender can limit the contributions of women.While these recurring patterns can be correctly identified as gender equity issues, equity is not the only issue at stake. Given the severity of the water supply, water quality, and climate challenges before us, everyone’s best contributions will be needed to protect water, our communities, and the planet. Limitations we set on ourselves and others based on gender reduce our ability to utilize fully the human talent required to address our basic survival needs. The voices of the water industry professionals who contributed to this book from across the globe provide useful guidance on how we can optimize everyone’s contribution.

Water of different qualities is used in a wide range of industrial processes. After usage, various substances enter the water streams, generating the industrial wastewater whose characteristics may include recalcitrant organics, high salinity, heavy metals, extreme pH, high turbidity, etc. Nowadays, water in industry tends to form a recycling loop, as boosted by regional water scarcity, strict policies on emission control and arising public concerns. The trend increases the challenge of technical solutions and management tools. This book seeks to answer some of the challenges of industrial water management, and covers topics such as membrane separation, adsorption, advanced oxidation and applications. In Focus – a book series that showcases the latest accomplishments in water research. Each book focuses on a specialist area with papers from top experts in the field. It aims to be a vehicle for in-depth understanding and inspire further conversations in the sector.

Is bottled water better for you than tap water? Is the pollution created by wastewater treatment plants a major issue? Is privatisation the best solution for more efficient water use? These are just a few of the myths busted in Dispelling Myths About Water Services.In this book, internationally renowned experts examine 21 common misconceptions regarding water supply and wastewater services, dispelling the myths by drawing on their global insights, avoiding technical jargon, and bringing the content to life with original illustrations.Access to clean water and safe sanitation is essential for life. Without it, our time on this planet becomes dangerously short. The message is clear: to build sustainable water services, proper rules, accountable and responsive leadership, and well-informed stakeholders are vital, alongside resilient organisations and robust physical systems.Whether you’re a water professional, policy maker, or environmental enthusiast, Dispelling Myths About Water Services helps sort the fact from the fiction regarding our most vital resource: water.

The first edition of this book was published in 2008 and it went on to become IWA Publishing’s bestseller. Clearly there was a need for it because over the twenty years prior to 2008, the knowledge and understanding of wastewater treatment had advanced extensively and moved away from empirically-based approaches to a fundamental first-principles approach based on chemistry, microbiology, physical and bioprocess engineering, mathematics and modelling. However the quantity, complexity and diversity of these new developments was overwhelming for young water professionals, particularly in developing countries without readily available access to advanced-level tertiary education courses in wastewater treatment. For a whole new generation of young scientists and engineers entering the wastewater treatment profession, this book assembled and integrated the postgraduate course material of a dozen or so professors from research groups around the world who have made significant contributions to the advances in wastewater treatment. This material had matured to the degree that it had been codified into mathematical models for simulation with computers. The first edition of the book offered, that upon completion of an in-depth study of its contents, the modern approach of modelling and simulation in wastewater treatment plant design and operation could be embraced with deeper insight, advanced knowledge and greater confidence, be it activated sludge, biological nitrogen and phosphorus removal, secondary settling tanks, or biofilm systems. However, the advances and developments in wastewater treatment have accelerated over the past 12 years since publication of the first edition. While all the chapters of the first edition have been updated to accommodate these advances and developments, some, such as granular sludge, membrane bioreactors, sulphur conversion-based bioprocesses and biofilm reactors which were new in 2008, have matured into new industry approaches and are also now included in this second edition. The target readership of this second edition remains the young water professionals, who will still be active in the field of protecting our precious water resources long after the aging professors who are leading some of these advances have retired. The authors, all still active in the field, are aware that cleaning dirty water has become more complex but that it is even more urgent now than 12 years ago, and offer this second edition to help the young water professionals engage with the scientific and bioprocess engineering principles of wastewater treatment science and technology with deeper insight, advanced knowledge and greater confidence built on stronger competence.

Nature-Based Solutions for Urban Sustainability provides comprehensive insights on existing technologies and up-to-date advances in the field of water, wastewater and waste treatment using nature-based approaches and systems.This book highlights:· Process fundamentals of nature-based solutions, including hydrodynamics, media, bacteria/media interactions and phytoremediation for pollution control, resource recovery and energy generation.· Critical insights on the status, major challenges and modern engineering solutions in nature-based solutions for the treatment of rainwater, storm water, wastewater and solid waste.· Advanced methods for valorisation using nature-based solutions through integration with other technologies, such as composting, anaerobic digestion and bioelectrochemical systems.· Up-to-date information on modern approaches for deriving value-added operation, by combining nature-based solutions with agricultural practices such as fish farming or protein production.· Case studies of nature-based solutions from countries in transition including Thailand, Vietnam, Indonesia and Philippines.This reference textbook is recommended reading for both undergraduate and graduate students pursuing degrees in environmental sciences, technologies, or engineering. It is equally useful for a broader audience including researchers, engineers, and policy makers interested in the field of nature-based solutions for urban sustainability. It is also tailored to be used as an advanced manual for practitioners and consultancies working in the field of diffuse pollution and climate change mitigation.

The unique properties of Platinum Group Elements (PGE) combine resilience and high catalytic activity, which make them indispensable across a range of industries, from automotive to electronics, from jewellery to biomedical implants, and beyond. This book provides comprehensive insights on existing technologies and up-to-date advances in the abatement of pollution by PGE and sustainable practices for efficient extraction and recovery of PGE from secondary sources.Highlights include:· Sources, occurrence, and wide application range of PGE, showcasing their critical role in modern society and industry.· State-of-the-art analytical methodologies for PGE, including sample pretreatment, advancements in chromatographic separation and innovations in mass spectrometry.· Process fundamentals of PGE biorecovery, including microbial biosorption and bioreduction as well as PGE metabolism in (hyperaccumulator) plants enabling phytoremediation and phytomining.· Advanced ways for PGE valorisation by extraction using green solvents followed by purification using novel adsorption, ion exchange and membrane processes.· Critical insights on the status and major challenges of mechanical, pyrometallurgical, hydrometallurgical, and biometallurgical technologies to achieve a high overall PGE recovery.· Up-to-date information on modern approaches for deriving microbially synthesised PGE nanoparticles with tuneable size, shape and functionality.· Case studies of industrial applications of PGE recovery from spent automotive catalysts, electrical and electronic wastes, and industrial by-products.Environmental Technologies to Treat Platinum Group Element Pollution is an essential reference textbook for both undergraduate and graduate students pursuing degrees in environmental science, technology or engineering. It is equally useful for researchers, engineers and policy makers interested in the field of critical raw material recovery for sustainable development, and for practitioners and consultancies dealing with PGE-related environmental (bio)technologies.

Reducing Water Use and Carbon Footprint: Working toward a circular economy tackles some of today’s most pressing environmental, economic, and social challenges. Aligned with the principles of the Circular Economy, the 2030 Agenda for Sustainable Development, and the European Green Deal, it showcases groundbreaking technologies that reduce carbon and water footprints, improve air quality, and promote smarter, more sustainable water and waste management.Designed for scientists, graduate students, industry professionals, policymakers, and environmentally conscious readers, this publication provides both the scientific foundation for and practical insights into efficient, cost-effective methods for exhaust gas purification and post-process waste utilization, framed within the Circular Economy’s 6R concept - refuse, reduce, reuse, repair, recycle, rethink. Particular attention is given to novel carbon capture techniques using water-soluble sorbents and ferriferrohydrosol (FFH)—an innovative, affordable, and environmentally friendly reagent with catalytic and coagulating properties.The first part of the book provides an overview of modern CO₂ capture technologies, comparative analyses of removal costs in solid fuel conversion processes, and the evolving regulatory framework for greenhouse gas emissions in small and medium-sized enterprises. The second part turns to innovative solutions for industrial waste and water management, including steam plasma processing of biomass and organic waste to generate hydrogen-enriched syngas and biochar, and the incorporation of fine granite waste into ceramic tile production to boost durability and reduce water absorption.Blending cutting-edge technologies and sustainable strategies, this book offers practical pathways toward lower CO₂ emissions and water use, supporting the global transition to a low-carbon circular economy and resource-efficient future.

The third edition of Wastewater and Biosolids Management includes six brand new chapters covering:· Phosphorous removal from wastewater using multi-soil-layering systems· Trace organic contaminants from reclaimed wastewater found in agricultural soil, and an assessment of their risks to human health· Wastewater treatment using adsorbents derived from biosolids as a contribution to sustainable sludge management· Constructed wetlands: case studies from Türkiye, challenges and solutions· Decentralized rural domestic wastewater treatment and resource utilization· Hydrothermal carbonization processes for the degradation of organic pollutants in sewage sludgeThe book tackles a wide range of current, new and emerging topics in wastewater and biosolids. It addresses the theoretical and practical aspects of water reuse and its application in agricultural production based on current practice and recent research developments.Designed for researchers, academics and water professionals, this volume also includes a comprehensive study guide for the benefit of students.

Owing to climate change related uncertainties and anticipated population growth, different parts of the developing and the developed world (particularly urban areas) are experiencing water shortages or flooding and security of fit-for-purpose supplies is becoming a major issue. The emphasis on decentralized alternative water supply systems has increased considerably. Most of the information on such systems is either scattered or focuses on large scale reuse with little consideration given to decentralized small to medium scale systems. Alternative Water Supply Systems brings together recent research into the available and innovative options and additionally shares experiences from a wide range of contexts from both developed and developing countries. Alternative Water Supply Systems covers technical, social, financial and institutional aspects associated with decentralized alternative water supply systems. These include systems for greywater recycling, rainwater harvesting, recovery of water through condensation and sewer mining. A number of case studies from the UK, the USA, Australia and the developing world are presented to discuss associated environmental and health implications. The book provides insights into a range of aspects associated with alternative water supply systems and an evidence base (through case studies) on potential water savings and trade-offs. The information organized in the book is aimed at facilitating wider uptake of context specific alternatives at a decentralized scale mainly in urban areas. This book is a key reference for postgraduate level students and researchers interested in environmental engineering, water resources management, urban planning and resource efficiency, water demand management, building service engineering and sustainable architecture. It provides practical insights for water professionals such as systems designers, operators, and decision makers responsible for planning and delivering sustainable water management in urban areas through the implementation of decentralized water recycling. Authors: Fayyaz Ali Memon, Centre for Water Systems, University of Exeter, UK and Sarah Ward, Centre for Water Systems, University of Exeter, UK

The public water supply, urban wastewater and urban waste management services are essential to the well-being of citizens, public health and economic activities. These are generally provided under natural or legal monopoly, so there is no incentive for utilities to search for greater efficiency and effectiveness and as such there is an increasing prevalence of such risks for users. For these reasons, society can significantly benefit from the existence of regulatory intervention capable of introducing greater balance in the relationship between utilities and their users. The Regulation of Water and Waste Services: An Integrated Approach (Rita-Ersar) presents a practical integrated regulatory approach to these water and waste services. This approach is called the ARIT-ERSAR model and it is capable of contributing to the promotion of access by citizens to these services that is tending towards the universal. These services are provided with suitable quality by utilities at socially acceptable prices and with an acceptable level of risk. This approach consists of a regulation model with two major areas of intervention: structural regulation of the sector and regulation of the performance of the utilities. The components of structural regulation are contributions to organisation, legislation, information and sectoral capacity building. The performance regulation of utilities consists of legal and contractual regulation, economic regulation, quality of service regulation, drinking water quality regulation and user interface regulation.

A definitive guide for practitioners, engineers, and students, Design and Construction of Wastewater and Foul Air Treatment Plants delves into the complete design process of treatment plants, including in-depth guides to sizing calculations, instrumentation, tank design, and control narratives.The author distils over 40 years of hands-on experience and industry wisdom into a clear, practical framework that bridges theory and real-world application. With more than 200 full-colour schematic diagrams and figures, this title serves as both a teaching aid and a design companion.Whether you are a practising environmental engineer, an equipment manufacturer, a plant operator, or an academic working in the field, this vital resource will equip you with the knowledge and skills required to understand, design, and troubleshoot treatment systems effectively. This book is a must-have reference for anyone involved in the design of wastewater and foul air treatment plants.

Over the past twenty years, the knowledge and understanding of wastewater treatment has advanced extensively and moved away from empirically based approaches to a fundamentally-based first principles approach embracing chemistry, microbiology, and physical and bioprocess engineering, often involving experimental laboratory work and techniques. Many of these experimental methods and techniques have matured to the degree that they have been accepted as reliable tools in wastewater treatment research and practice. For sector professionals, especially a new generation of young scientists and engineers entering the wastewater treatment profession, the quantity, complexity and diversity of these new developments can be overwhelming, particularly in developing countries where access to advanced level laboratory courses in wastewater treatment is not readily available. In addition, information on innovative experimental methods is scattered across scientific literature and only partially available in the form of textbooks or guidelines. This book seeks to address these deficiencies. It assembles and integrates the innovative experimental methods developed by research groups and practitioners around the world. Experimental Methods in Wastewater Treatment forms part of the internet-based curriculum in wastewater treatment at UNESCO-IHE and, as such, may also be used together with video records of experimental methods performed and narrated by the authors including guidelines on what to do and what not to do. The book is written for undergraduate and postgraduate students, researchers, laboratory staff, plant operators, consultants, and other sector professionals.

Industrial pollution is still a major concern and despite its significance, sound and systematic pollution control efforts are very poorly documented. The character and treatability of industrial wastewaters is highly variable and specific for each industrial activity. Biological treatment with activated sludge is the appropriate technology for industrial wastewaters from several major industrial sectors. Industrial Wastewater Treatment by Activated Sludge deals with the activated sludge treatment of industrial wastewaters by considering conceptual frameworks, methodologies and case studies, in a stepwise manner. The issues related to activated sludge treatment, such as biodegradability based characterization, modeling, assessment of stoichiometric and kinetic parameters and design, as well as the issues of industrial pollution control, e.g. in-plant control, effect of pretreatment, etc. are combined in a way to provide a comprehensive and information-rich view to the reader. By doing so, the book supplies an up-to-date reference for industrial wastewater experts and both graduate and undergraduate students. Industrial Wastewater Treatment by Activated Sludge provides a roadmap, describing the methodologies for the treatment of industrial wastewaters from several major sectors, based on a solid theoretical background. Up to now although valuable separate efforts both on activated sludge and industrial wastewater treatment have been presented, an integrated approach that is crucial to practice has not been available. This gap is filled by this book.

Over the last few years there has been a growing concern over the increasing concentration of micropollutants originating from a great variety of sources including pharmaceutical, chemical engineering and personal care product industries in rivers, lakes, soil and groundwater. As most of the micropollutants are polar and persistent compounds, they are only partially or not at all removed from wastewater and thus can enter the environment posing a great risk to the biota. It is hypothesized that wastewater is one of the most important point sources for micropollutants. Treatment of Micropollutants in Water and Wastewater gives a comprehensive overview of modern analytical methods and will summarize novel single and hybrid methods to remove continuously emerging contaminants - micropollutants from the aqueous phase. New trends (e.g. sensor technology, nanotechnology and hybrid treatment technologies) are described in detail. The book is very timely because the new techniques are still in the development phase and have to be realized not only in the laboratory but also on a larger scale. The content of the book is divided into chapters that present current descriptive and analytical methods that are available to detect and measure micropollutants together with detailed information on various chemical, biological and physicochemical methods that have evolved over the last few decades. Treatment of Micropollutants in Water and Wastewater will also enable readers to make well informed choices through providing an understanding of why and how micropollutants must be removed from water sources, and what are the most appropriate and available techniques for providing a cost and technologically effective and sustainable solutions for reaching the goal of micropollutant-free water and wastewater. The book will be suitable for water and wastewater professionals as well for students and researchers in civil engineering, environmental engineering and process engineering fields.

Water meters are the cornerstone of commercial systems for water utilities throughout the world; revenue is directly derived from the, figures provided by meters. Despite this, little attention has been paid, in terms of selection, replacement period and return on investment, to the management and optimization of water meters. Integrated Water Meter Management is a comprehensive reference for engineers and managers alike, providing: in-depth technical information allowing the true nature and behaviour of meters to be understood; a comprehensive review and comparison of relevant global water meter technologies - a useful tool to help decide which water meter is best for your utility; discussion of key decisions concerning the use of water meters (when to replace them, which one to use, how to control their quality) from a managerial perspective. Integrated Water Meter Management is an invaluable resource for those involved in urban water management, including water utility managers, engineering technical staff, operations and maintenance specialists, meter-reading personnel and scientific researchers in this discipline.

The complex interactions between water resources, land-use change and water technologies are a major issue in many emerging countries of Southern America. Usable water resources are affected by natural conditions, such as, strong seasonal contrasts and high climatic variability, and rapid changes of land use and land cover that is caused by the dramatic expansion of agricultural land and urbanization processes. So far, the effects of the changing climate have had minor effects on water resources. Although regional data is rather scarce, global climate models predict substantial changes of climatic conditions in the future. A further pressure is that demand for water supply and waste water, both in terms of amount and spatial expansion, is increasing rapidly due to higher population densities caused by natural population growth and migration as well as higher per capita consumption. Integrated Water Resource Management in Brazil aims to present the results of the joint project IWAS-AGUA DF which deals with problems, causes and solutions in water supply in scope of integrated water resource management in western Central Brazil. The basic idea of the IWRM approach to be presented is to show how natural conditions and human interference are interacting and how technologies as well as concepts might help to manage such water resource systems in a sustainable way. Authors: Carsten Lorz, Hochschule Weihenstephan-Triesdorf, University of Applied Sciences, Germany, Franz Makeschin, Dresden University of Technology, Germany and Holger Weiss, Center for Environmental Research, Germany

Municipal Wastewater Management in Developing Countries discusses various approaches to municipal wastewater management in order to protect both public health and the environment, with the major focus being on waterborne diseases. Developing countries can be divided into two main categories, i.e. countries in transition with higher growth rates where industrialisation and urbanisation are taking place rapidly, and countries with slower growth rates. It is important, therefore, that approaches should be tailor-made and site-specific. In general, the major trends of water pollution control have significantly contributed to the development of ?conventional sanitation? approaches in terms of legal and financial frameworks, as well as technological enhancement. Despite advances in the science, engineering and legal frameworks, 95 per cent of the wastewater in the world is released into the environment without treatment. Only five per cent of global wastewater is properly treated using the ?standard? sanitation facilities, mainly in developed countries. As a result, the majority of the world?s population is still exposed to waterborne diseases, and the quality of water resources has been rapidly degraded, particularly in poor developing countries. The challenge now is to provide the world?s population, especially the poor, with adequate water and sanitation facilities. Despite billions of dollars of investment spent every year, billions of poor people are still suffering and dying because of poor sanitation. At the beginning of this century, about 1.1 billion people lived without access to clean water (compared to about the same number in 1990), 2.4 billion without appropriate sanitation (compared to 2.3 billion in 1990) and four billion without sound wastewater disposal. The future scenario, that water resources will be further depleted by a growing world population, will be coupled with environmental degradation due to poor pollution control, particularly in most of the developing countries. In order to address the issue of water and wastewater management in developing countries it is necessary to take into consideration the segments of the society itself, particularly the types of housing areas. The segments will indicate the level of socio-economic, mentality and knowledge, which is important for any planned changes in their life style and social engineering. It is also important to segregate the funding framework of any proposed projects. High-income urban communities, for instance, are generally willing to pay for sewerage services and higher water supply tariffs, therefore a designated system can be accordingly provided. Over the past 10 years, serious criticism has been given to the ?conventional sanitation? approach, consequently many definitions, concepts and characteristics have been proposed on ?sustainable sanitation?. Sustainable sanitation is a relevant concept in order to achieve the Millennium Development Goals by 2015 of providing water supply and adequate sanitation for developing countries. Sustainable sanitation is flexible in approach any community ? poor or rich, urban or rural, water-rich or water-poor country ? and requires lower investment costs compared to conventional sanitation approaches. It is also important to note that the framework of sustainable sanitation is much easier to adopt in developing countries where water supply and sanitation infrastructures are still in the developing stages. In some developing countries, no public facilities are available therefore it is an ideal condition to start a new infrastructure with a new framework. This comprehensive reference, prepared by leading international authorities, will provide an invaluable reference for all those concerned with the management of sanitation services in developing countries worldwide.