This work examines the different aspects of, and the issues surrounding, affordable water supply and sanitation. It examines both "software" aspects - people, communities, health, management and institutions - as well as technological considerations such as waste management. The book comprises over 40 papers presented at the 20th WEDC Conference held in Colombo, Sri Lanka in 1994. The material is drawn from countries in all parts of the world. The Water, Engineering and Development Centre (WEDC), based at Loughborough University of Technology, is concerned with education, training, research and consultancy for the planning, provision and management of physical infrastructure for development in low- and middle-income countries.

This book forms the proceedings of the 18th European conference on irrigation and drainage. Water is not a free commodity, and demand is becoming more and more intense for its allocation. This book focuses on the role of irrigation and drainage in the debate on water, and will be used by planners, designers and policy makers internationally.

Hydrometry is concerned with the measurements of all the variables in the hydrological (water) cycle and hydrological information is therefore necessary for the practice of efficient water management. Water will be a major issue as the world enters the third millennium where more than one quarter of its population still do not have safe drinking water. An increasing demand is therefore placed on hydrometry to provide the essential hydrometric information in order that the world's water resources may be managed more efficiently. The aim of this second edition is to continue the success of the first edition by including new chapters on weather radar, remote sensing, groundwater and tree ring analysis, important in extending hydrometric records. Chapters of the first edition have been brought up to date as necessary in accordance with new technology and care has been taken to bridge the gap between past methods in hydrometry. The book therefore provides an invaluable guide to managers as well as field personnel who have operation and decision making roles in water management. Contents: Flow measurement; Instrumentation; Long river records; Precipitation measuring radar; Satellite remote sensing; Groundwater; Tree ring analysis; Transmission of hydrometric data by satellite; Maximizing the utility of river flow data; Hydrometric data processing; Uncertainties and Measuring up to water resources assessment.

An Introduction to Water Quality Modelling Second Edition Edited by A. James Department of Civil Engineering, University of Newcastle upon Tyne, UK This book presents a simple introduction (for those not familiar with modelling, computing or numerical methods) to the use of modelling techniques and their applications in the management of water quality. Eight years have passed since the first edition of the book was published and there has been a tremendous increase in the use of mathematical models in environmental engineering, especially the control of pollution in rivers and estuaries. Modelling has also addressed a much wider range of pollutants and there has been an increase in the range of conceptual approaches to the formulation of models. The text of this second edition has therefore been modified to reflect these changes. The chapters dealing with techniques have been expanded to cover a greater range of kinetics and introduce a background of understanding for statistical techniques and time series analysis. Similarly, the chapters dealing with the application of models to rivers, estuaries, lakes, groundwater and the marine environment have been expanded and updated. The overall aims of the book, however, remain the same, making it an ideal introductory text for people wishing to learn about water quality modelling.

Most engineer-designed irrigation systems assume water will be distributed on the basis of delivery schedules that optimize physical relationships. These schedules often neglect the social parameters that govern irrigation management. This deficiency probably constrains yields on many of the gravity schemes that account for 90 per cent of all land irrigated in developing countries. The shortcoming is partly attributable to the widespread failure to study water distribution processes from an angle that is both technical and social.;In the case studies presented in this collection, irrigation engineers describe water distribution practices as they actually occur in various schemes. Six of the schemes (in Mexico, Portugal, and Bolivia) are farmer-managed and one (in south India) is managed jointly by farmers and technical officers. The authors relate water flows to social processes and contrast conventional engineering wisdom with the practices they have observed.

Most People in rural Africa do not have access to safe toilets and their health and well-being suffers as a consequence. There is an urgent need for the construction of simple, low-cost, affordable toilets that are easy to build and maintain. Toilets that make compost provides practical examples of toilets that, in addition to providing a safe sanitation option, also recycle the nutrients in excreta to produce compost. This compost is valued wherever wherever households have enough space to grow fruit and vegetables in their back gardens; the designs are suitable for regions where there is no high water table or prolonged wet season. This book provides detailed instructions for constructing a range of toilets from the simplest and most affordable to the more sophisticated ecological toilet.

In the summer of 1999, an international group of experts convened in Jerusalem, Israel, in order to define the major environmental challenges facing humanity at the dawn of the new millennium and - where possible - propose ways of addressing them. Almost 50 selected articles are collected in the present book, which constitutes a striking interdisciplinary combination of state-of-the-art science with the latest views on environmental law, education, and international cooperation. Whilst a major fraction of the book is devoted to water-related issues (water quality monitoring, water and wastewater treatment, water-based international cooperation, and more), other sections deal with timely topics relating to air pollution, biodiversity, conservation, and education. The book is intended for environmental scientists, professionals, and students of all disciplines.

Produced as part of WEDC's contribution to the International Year of Sanitation 2008, this book provides easy-to-use tools for assessing sanitation, water supply and hygiene facilities in primary schools in Africa sothat appropriate decisions can be made about sanitation improvements. It also presents guidelines for rehabilitating or decommissioning existing latrines; for choosing the right type of latrine where new facilities are requires; for siting latrines appropriately within a school compound; and for the operation and maintenance of these facilities. A number of low-cost toilet designssuitable for many rural and peri-rural locations in Africa are also included. Written in a readable style and copiously illustrated, the book has been designed primarily for school managers and headteachers but it will also be of interest to planners, architects and engineers.

Numerical methods provide a powerful and essential tool for the solution of problems of water resources. This book gives an elementary introduction to the various methods in current use and demonstrates that different methods work well in different situations and some problems require combinations of methods. It is essential to know something of all of them in order to make a reasoned judgement of current practice. Their applications are discussed and more specialised versions are outlined along with many references making this an invaluable, comprehensive coverage of the field.

Urban sanitation and solid waste sectors are under significant pressure in East Africa due to the lack of competent institutional capacity and the growth of the region's urban population. This book presents and applies an original analytical approach to assess the existing socio-technical mixtures of waste and sanitation systems and to ensure wider access, increase flexibility and ecological sustainability. It shows how the problem is not the current diversity in waste and sanitation infrastructures and services and variety of types and scales of technology, of formal and informal sector involvement, and of management and ownership modes. The book focuses instead on the lack of an integrative approach to managing and upgrading of the various waste and sanitation configurations and services so as to ensure wider access, flexibility and sustainability for the low income populations who happen to be the main stakeholders. This approach, coined "Modernized Mixtures", serves as a nexus throughout the book. The empirical core addresses the waste and sanitation challenges and debates at each scale - from the micro-level (households) to the macro-level (international support) - and is based on the results of a five-year-long interdisciplinary, empirical research program. It assesses the socio-technical diversity in waste and sanitation and provides viable solutions to sanitation and waste management in East Africa. This book provides students, researchers and professional in environmental technology, sociology, management and urban planning with an integrated analytical perspective on centralized and decentralized waste and sanitation configurations and tools for improvement in the technology, policy and management of sanitation and solid waste sectors.

Popular belief holds that throwing the contents of a chamber pot into the street was a common occurrence during the early modern period. This book challenges this deeply entrenched stereotypical image as the majority of urban inhabitants and their local governors alike valued clean outdoor public spaces, vesting interest in keeping the areas in which they lived and worked clean. Taking an extensive tour of over thirty towns and cities across early modern Britain, focusing on Edinburgh and York as in-depth case studies, this book sheds light on the complex relationship between how governors organised street cleaning, managed waste disposal and regulated the cleanliness of the outdoor environment, top-down, and how typical urban inhabitants self-regulated their neighbourhoods, bottom-up. The urban-rural manure trade, sanitation infrastructure, waste-disposal technology, plague epidemics, contemporary understandings of malodours and miasmatic disease transmission and urban agriculture are also analysed. This book will enable undergraduates, postgraduates and established academics to deepen their understanding of daily life and sensory experiences in the early modern British town. This innovative work will appeal to social, cultural and legal historians as well as researchers of history of medicine and public health.

Grasp the Essential Principles of Membrane Bioreactor Processes Evolved from the conventional activated sludge (CAS) process, membrane bioreactor (MBR) processes have become the next-generation solution for municipal and industrial wastewater treatment and recycle. Membrane Bioreactor Processes: Principles and Applications explores nearly all the theoretical and practical aspects of membrane bioreactor technologies. Using the author's expertise obtained from academia and industry, this book provides the crucial details on MBR technology that that you need to know. The book details the theoretical and practical backgrounds of current practices involved with membrane module design, biological and membrane system design, system optimization, and system operation. Outlines the State of the Art of the Membrane Bioreactor Technology The text discusses the fundamentals of membrane filtration, emphasizing the principles of submerged membrane filtration. It also explores the complex interaction among key design and operating parameters, offers comprehensive explanations on the interconnectivity between biological and membrane systems, and covers new findings discovered in recent years. This book clearly explains how small-scale systems perform differently from larger-scale systems and its implications in data interpretation. Using this book as a platform, the technology can be developed further and quickly applied in future processes.

A thorough, accessible introduction to the discipline of environmental management.

The modern environmental manager is a multi-disciplined administrator whose areas of expertise encompass everything from technological know-how, to business and finance, to an understanding of federal, state, and local statutes and regulations. Fundamentals of Environmental Management incorporates a detailed understanding of each of these areas into a clear, integrated introduction to this dynamic and demanding discipline. Addressing the full spectrum of environmental affairs management issues, this comprehensive guide provides a balance of the practical advice and in-depth legal knowledge required to build and maintain a successful environmental management program in compliance with all levels of government requirements. It also discusses concepts for managing beyond compliance and provides solid recommendations on how to establish productive relationships with environmental agencies and other external stakeholders. This unique resource provides:

• Broad coverage of technical, legal, and business management aspects of environmental management.
• Detailed discussions of management responsibilities in each medium: air, water, and soil.
• A survey of all pertinent U.S. federal regulations, including RCRA, TSCA, CERCLA, the Clean Air Act, and the Clean Water Act.
• Practical guidance on when and how to request permits, and which permits to request.

  A powerful tool in the hands of environmental managers, plant managers, and environmental, health, and safety managers for manufacturing firms, Fundamentals of Environmental Management is also an excellent text for graduate students in environmental management programs and an important reference for environmental attorneys and consultants.

* Covers all stages of the planning process* Unified urban sanitation planning is a vital weapon in the war against diseaseThe recent Johannesburg Earth Summit focused the world's attention on the importance of good sanitation. This guide to strategic planning for urban sanitation suggests options for approaching the challenging task of improving sanitation for the inhabitants of the rapidly growing towns and cities of the South. The specific focus of the book is upon the needs of the poor and marginalized communities who are the most likely to suffer from inadequate sanitation services.The authors suggest the need for a step-wise approach to sanitation planning, in which planning objectives and the processes through which they are achieved are refined and developed in the light of experience, taking into account available information and a realistic assessment of available resources.The main focus of the guide is on engaging with a wide range of stakeholder groups to plan at the municipal level. It emphasizes the need to spend time to "develop solutions" to sanitation problems before attempting to plan citywide. However, there is no one right place to start a strategic process, and planners and activists must look for the opportunities that are open to them in their existing situation. The guide therefore explores the action that can be taken to create an improved context for planning and for initiating improved planning processes at the local level, which may eventually lead to more widespread change and development.The guide includes a number of chapters devoted to key aspects of the planning process, including creating and informing demand, gathering and analyzing information, choosing an appropriate technology, holding a participatory workshop and, last but not least, following up on the plan.

Advanced Oxidation Technologies (AOTs) or Processes (AOPs) are relatively new and innovative technologies to remove harmful and toxic pollutants. The most important processes among them are those using light, such as UVC/H2O2, photo-Fenton and heterogeneous photocatalysis with TiO2. These technologies are also relatively low-cost and therefore useful for countries under development, where the economical resources are scarcer than in developed countries. This book provides a state-of-the-art overview on environmental applications of Advanced Oxidation Technologies (AOTs) as sustainable, low-cost and low-energy consuming treatments for water, air, and soil. It includes information on innovative research and development on TiO2 photocatalytic redox processes, Fenton, Photo-Fenton processes, zerovalent iron technology, and others, highlighting possible applications of AOTs in both developing and industrialized countries around the world in the framework of "A crosscutting and comprehensive look at environmental problems". The book is aimed at professionals and academics worldwide, working in the areas of water resources, water supply, environmental protection, and will be a useful information source for decision and policy makers and other stakeholders working on solutions for environmental problems.

This book is designed to assist those involved in planning and implementing emergency sanitation programmes. The main focus of the book is a systematic and structured approach to assessment and programme design. It provides a balance between the hardware (technical) and software (socio-cultural, institutional) aspects of sanitation programmes, and links short-term emergency response to long-term sustainability. The book is relevant to a wide range of emergency situations, including both natural and conflict-induced disasters, and open and closed settings. It is suitable for field technicians, engineers and hygiene promoters, as well as staff at agency headquarters.

Urban sanitation and solid waste sectors are under significant pressure in East Africa due to the lack of competent institutional capacity and the growth of the region's urban population. This book presents and applies an original analytical approach to assess the existing socio-technical mixtures of waste and sanitation systems and to ensure wider access, increase flexibility and ecological sustainability. It shows how the problem is not the current diversity in waste and sanitation infrastructures and services and variety of types and scales of technology, of formal and informal sector involvement, and of management and ownership modes. The book focuses instead on the lack of an integrative approach to managing and upgrading of the various waste and sanitation configurations and services so as to ensure wider access, flexibility and sustainability for the low income populations who happen to be the main stakeholders. This approach, coined "Modernized Mixtures", serves as a nexus throughout the book. The empirical core addresses the waste and sanitation challenges and debates at each scale - from the micro-level (households) to the macro-level (international support) - and is based on the results of a five-year-long interdisciplinary, empirical research program. It assesses the socio-technical diversity in waste and sanitation and provides viable solutions to sanitation and waste management in East Africa. This book provides students, researchers and professional in environmental technology, sociology, management and urban planning with an integrated analytical perspective on centralized and decentralized waste and sanitation configurations and tools for improvement in the technology, policy and management of sanitation and solid waste sectors.

The fundamentals of urban drainage and wastewater disposal are presented in this handbook and this new edition has been reworked to reflect new US technology, practices, and conditions. Chapters cover calculation of drainage systems; urban stormwater and combined sewer overflow management; general considerations of wastewater treatment; design and planning of treatment plants; industrial wastewater treatment and pretreatment; protection of receiving waters: discharge of wastewater into surface waters and self-purification of surface waters; conversion of SI units to English customary units; and information retrieval. An appendix of monographs for dimensioning of sewers is included.

Millions of slum residents across the world suffer the hazards and misery of frequent flooding of their streets and homes, which may result in the savings of a lifetime being washed away in a few hours, damaged property, loss of work and time, and higher risks of diarrhea, worm infection, and other health problems. This manual is written to help engineers, aid, and agency workers more clearly to understand drainage problems in the developing world, so that they can work towards finding practical solutions. It focuses on three questions of particular relevance to low-income urban areas in developing countries: What is drainage performance? How can we evaluate a drainage system to improve its performance? What are the effects of solids on the performance of drains? This manual is the outcome of two-and-a-half years of fieldwork in the city of Indore, in Madhya Pradesh, India and can be used as a practical aid by municipal engineers, consulting engineers, and engineering instructors and students, as well as development and aid workers involved in drainage systems.

This book presents the findings of a Department for International Development (DFID) funded project. It has been written for policy-makers and professional staff of urban government, development agencies and non-government organizations in low-income countries. The book aims to help improve the poor practices of municipal solid waste management that prevail in many low-income countries - a subject that has received comparatively little attention to other aspects of infrastructure such as water supply and transport. It is a complex subject embracing waste collection, transfer, haulage and disposal and its impacts are wide, including for example, effects on environmental health, municipal finance and management, waste reuse, and informal sector employment.

Modern Irrigation Technologies reviews the experience of small holders with irrigation technologies under a range of diverse conditions in many different countries. Some people argue that modern irrigation technologies are the key to increased food production. However, projects introducing modern irrigation technologies in the developing world have often failed because the irrigation hardware, which has been developed for high-technology commercial agriculture, cannot be easily adapted for the use of the smallholder. The author identifies the pre-conditions relating to water availability, institutional support and economic opportunity that must be satisfied before small holders in developing countries can adopt irrigation methods and benefit from them. The circumstances in which modern technologies have been introduced are identified, and the relative success or otherwise of the initiatives are summarized. The book also contains a practical review of the range of irrigation hardware that is available and indicates the types of equipment that are more likely to meet the requirements of the smallholder sector. Modern Irrigation Technologies will be an invaluable guide to project workers, planners and small holders involved in planning and designing irrigation projects.

Understanding how to properly manage urban stormwater is a critical concern to civil and environmental engineers the world over. Mismanagement of stormwater and urban runoff results in flooding, erosion, and water quality problems. In an effort to develop better management techniques, engineers have come to rely on computer simulation and advanced mathematical modeling techniques to help plan and predict water system performance. This important book outlines a new method that uses probability tools to model how stormwater behaves and interacts in a combined- or single-system municipal water system. Complete with sample problems and case studies illustrating how concepts really work, the book presents a cost-effective, easy-to-master approach to analytical modeling of stormwater management systems.

Every ten seconds a child dies from diarrhoea. This makes 3 million children every year, or over 8000 children per day. These figures are only counting the deaths. How many children are disabled for life by parasitic infections and frequent diarrhoea in their early years? How many women live with permanent anaemia because of hookworm infections?;This book provides a practical solution to the lack of basic facilities and sanitation that so many people face in the world today, by giving advice and information on how to set up and implement a latrine building programme, and providing guidelines on how to build latrines that are easily maintained, affordable and appropriate to the needs of the communities who will be using them.;The book gives a basic introduction to appropriate latrine building, and covers the design and construction of different types of latrines, discussing some of the common problems that can occur in the building stage. It covers all aspects of the implementation of a latrine building programme, including the promoting of hygiene and the education aspects of such a programme, and how to go about planning, monitoring and evaluating such a programme. The latrine designs described here can be built using local materials, and involve peoples traditional skills and innovations.

This manual investigates the extent and nature of the involvement of low-income urban communities in the provision of their local infrastructure. It also provides guidance for policy-makers and professional staff of urban government, development agencies, non-government organisations, and small to medium enterprises for promoting increased involvement of communities in the procurement of neighbourhood (tertiary level) infrastructure. Cases relating to water supply, sanitation, drainage, access, paving, street and security lighting, solid waste removal, and community buildings are examined. ALSO AVAILABLE IN URDU

The treadle irrigation pump is able to lift up to 7000 litres of water per hour using the power of the human body, and can be locally made at low cost in small-scale metalworking shops. Its acceptance in Bangladesh, where it was first developed in 1984, is extraordinary, with over 500,000 pumps estimated now to be in use.;The current design offered in this manual has evolved from the Bangladesh original into a fully portable pump with both lift and pressure capacity and is especially appropriate to situations where soils are permeable, and water cannot easily be distributed through channels. The manual is intended to be read primarily by organizations engaged in economic development activities which have a particular expertise in technology transfer; it is not intended just as a step-by-step guide for the manufacturer (although it can be used in this way).