Bøger udgivet af IWA Publishing

Watermaths presents the mathematics underpinning the design and operation of the individual unit process technologies used for purifying water and wastewater. The book aims to provide the reader with sufficient information to enable them to tackle the most important calculations in this area, without requiring any prior knowledge of the subject and assuming only a very basic grounding in science or engineering. It focuses on the most essential areas of knowledge required, containing tuition in basic numeracy, chemistry, process engineering and fluid physics, as well as cost analysis. The simple and succinct delivery is designed to get the reader up to speed as rapidly as possible: sufficient background information is provided to explain the purpose of the calculations, and ultimately tackle the complete wastewater reclamation plant design problem included in the book. Example calculations are provided within each chapter, each followed by exercises intended to reinforce the learning (and for which solutions are appended). Exercises range in difficulty from simple single calculational-step problems to more complex ones, and the over-arching design problem provides some context to the mathematics. The book can be understood by those relatively new to the water sector, and is intended as a primer rather than a comprehensive handbook. It is nonetheless sufficiently comprehensive to permit design calculations for most water and wastewater treatment unit processes. Core disciplines covered include: manipulation of equations, including logarithmic and exponential expressions fluid physics for describing flow through pipes, channels and filters chemical concentrations and chemical/biochemical reactions chemical/biochemical reaction kinetics mass balance for determining fate of materials through unit processes mass transfer for determining transfer of materials across boundaries within processes reactor theory for designing biochemical and chemical reaction vessels cost analysis, including capital and operating expenditure with discounting. New to the third edition: new chapter on cost analysis further explanation of the classical unit operations types illustrations expanded to include unit operation schematics and symbols new examples and exercises updated design problem. Watermaths just add water.

Anaerobic Sewage Treatment: Optimization of process and physical design of anaerobic and complementary processes provides information on process design and reactor design of anaerobic sewage treatment systems consisting of UASB technology followed by post treatment systems. Attention will be paid to the design of sludge and biogas handling facilities. Additionally, novel developments will be discussed and placed into context. Written primarily as a textbook to be used at higher education institutes for educational purposes, this important new publication will also of interest to practitioners and academics.

Reducing Energy for Urban Water and Wastewater shows how cities can reduce energy use, cut costs and curb greenhouse gas emissions.

'We are experiencing the beginning of an energy revolution in these early years of the 21st century.' Water, Energy, and Environment - A Primer provides an introduction to, and explanation of, this revolution.

This book proposes Regenerative Sanitation as the next era of sanitation management and attempts to provide a foundation for the study of sanitation on the premise that sanitation is a complex and dynamic system that comprises of social-ecological, technological and resource systems.

La transicion hacia unas empresas de agua y saneamiento urbano con bajas emisiones de carbono es una idea innovadora que actualmente solo ha sido adaptada por unas pocas empresas con vision de futuro.

Resilient Water Services and Systems: The Foundation of Well-Being provides an overarching framework on water and sanitation services and how they are coping with resilience, aging infrastructure and climate change.

This book describes and defines the broad landscape in the research area of trace elements in anaerobic biotechnologies, from the level of advanced chemistry and single microbial cells, through to engineering and bioreactor technology and to the fate of trace elements in the environment.

El Manual presenta una perspectiva de derechos humanos que agregara valor a la toma de decisiones informadas en las operaciones diarias de los operadores, gerentes y reguladores.

The book presents steps taken by National Water and Sewerage Corporation of Uganda, a typical public enterprise, to sustain a high performance momentum after over 15 years of successful utility reforms.

This publication examines the risks associated with the release of excessive nitrogen into the environment (climate change, depletion of the ozone layer, air pollution, water pollution, loss of biodiversity, deterioration of soil quality).

Biofouling of Membrane Systems gives a comprehensive overview on the state-of-the-art strategies to control biofouling in spiral wound reverse osmosis membrane systems and point to possible future research directions.

Le Manuel met en lumi re les principes et crit res relatifs aux droits de l'homme dans le domaine de l'eau potable et de l'assainissement. Il explique les obligations juridiques internationales en termes de politiques et de pratiques op rationnelles qui soutiendront la r alisation progressive de l'acc s universel.

This roadmap is directed at urban water utility managers in charge of planning future actions, as well as at the stakeholders who will support the utility action plans.

This book aims to show how clean water and clean energy are reachable for all while contributing to both a better climate and a healthier life.

This report contributes to the discussion of interconnections between scarce resources by highlighting the nexus between land, water and energy (the LWE nexus). It focuses on a dynamic, integrated, and disaggregated analysis of how land, water and energy interact in the biophysical and economic systems. The report provides projections for the biophysical and economic consequences of nexus bottlenecks until 2060, highlighting that while the LWE nexus is essentially local, there can be significant large-scale repercussions in vulnerable regions, notably on forest cover and in terms of food and water security. The analysis is based on coupling a gridded biophysical systems model with a multi-regional, multi-sectoral dynamic general equilibrium modelling assessment. Numerical insights are provided by investigating a carefully selected set of scenarios that are designed to illustrate the key bottlenecks: one scenario for each resource bottleneck, plus two scenarios that combine all bottlenecks, with and without an overlay of climate change.

This book is the French Translation of Faecal Sludge Management: Systems Approach for Implementation and Operation.

The seventh volume in the Biological Wastewater Treatment series, which gives a state-of-the-art presentation of the science and technology of sewage treatment.

Groundwater allocation determines who is able to use groundwater resources, how, when and where. It directly affects the value (economic, ecological, socio-cultural) that individuals and society obtain from groundwater, today and in the future. Building on the 2015 OECD publication Water Resources Allocation: Sharing Risks and Opportunities, this report focuses on groundwater and how its allocation can be improved in terms of economic efficiency, environmental effectiveness and social equity. Drawing on an analysis of groundwater's distinctive features and nine case studies of groundwater allocation in a range of countries, the report provides practical policy guidance for groundwater allocation in the form of a "e;health check"e;. This health check can be used to assess the performance of current arrangements and manage the transition towards improved allocation.

The report, building on a policy dialogue with a range of stakeholders in Korea, analyses how economic policy instruments under the responsibility of the Korean Ministry of Land, Infrastructure and Transport can be adjusted to contribute to water policy objectives. It also investigates how Smart Water Management Korea, an initiative by K-water that combines information and communication technology with water technology, can be harnessed to better contribute to water management in the country. Finally, it identifies some of the limitations of prevalent water allocation regimes which need to be addressed to make the best use of available water resources. Since 1965, the Korean Government has invested heavily in quantitative development strategies to meet water needs, and despite highly variable water availability, this has allowed for and facilitated rapid urbanisation and economic growth. However, several long-term trends are expected to affect the capacity of the current water management system to adequately respond to current and future water risks, such as rapid ageing of the population, fiscal consolidation and climate change. These call for a renewed emphasis on water use efficiency.

Agriculture is expected to face increasing water risks that will impact production, markets, trade and food security - risks that can be mitigated with targeted policy actions on water hotspots. This report develops the hotspot approach, provides an application at the global scale, and presents a mitigation policy action plan. The People's Republic of China, India and the United States are identified as countries facing the greatest water risks for agriculture production globally. A global simulation shows that, in the absence of action, water risks in Northeast China, Northwest India and the Southwest United States in particular could have significant production, price and trade consequences. Agriculture water risks could also result in broader socio-economic and food security concerns. Farmers, agro food companies, and governments can all play a role in responding to water risks at hotspot locations. A three-tier policy action plan is proposed to confront water risk hotspots, encompassing targeted responses, adapted national policies, strengthened market integration and international collaboration.

Despite the fact that nanotechnology has been present for a few decades, there is a big gap between how nanotechnology is perceived and what nanotechnology can truly offer in all sectors of water. The question to be answered is 'what more can we expect from nanotechnology' in the water field? The rational nano-design starts with well-defined problem definitions, necessitates interdisciplinary approaches, involves 'think-outside-the-box', and represents the future growth point of environmental nanotechnology. However, it is still largely new to the educated public and even scientists and engineers in water fields. Therefore, it is the purpose of this book to promote the concept of rational nano-design and to demonstrate its creativity, innovation, and excitement. This book presents a series of carefully selected rationally designed nano- materials/devices/surfaces, which represent drastically different, ground-breaking, and eye-opening approaches to conventional problems to embody the concept of nano-design and to illustrate its remarkable potential to change the face of the research in water industry in the future. Each of the book contributors is world-renowned expert in the burgeoning field of rational nano-design for applications. Rational Design of Next-generation Nanomaterials and Nanodevices for Water Applications is intended for undergraduates, graduates, scientists and professionals in the fields of environmental science, material science, chemistry, and chemistry engineering. It provides coherent and good material for teaching, research, and professional reference. Contents: Introduction to rational nano-design for water applications; Rational design of smart materials/surfaces with switchable oil wettability for sustainable oil-spill cleanup; Rational design of three-dimensional macroscale porous electrodes for bioelectrochemical systems; Design of (photo)electrochemical active membranes as next-generation filtration devices; Hierarchical materials as a design concept for multifunctional membranes; Rational design of functional nanoporous materials to confine water pollutant in controlled nano-space; A next-generation forward osmosis draw solution design; Rational design of magnetic permanently-confined micelle arrays (Mag-PCMAs) materials for sustainable water and soil remediation; Rational design of an all-in-one lab-on-chip device for direct seawater desalination; Design of micro-sized microbial fuel cells as miniature energy harvesters Author: Peng Wang, King Abdullah University of Science and Technology