The unit process approach, common in the field of chemical engineering, was introduced about 1962 to the field of environmental engineering. An understanding of unit processes is the foundation for continued learning and for designing treatment systems. The time is ripe for a new textbook that delineates the role of unit process principles in environmental engineering. Suitable for a two-semester course, Water Treatment Unit Processes: Physical and Chemical provides the grounding in the underlying principles of each unit process that students need in order to link theory to practice. Bridging the gap between scientific principles and engineering practice, the book covers approaches that are common to all unit processes as well as principles that characterize each unit process. Integrating theory into algorithms for practice, Professor Hendricks emphasizes the fundamentals, using simple explanations and avoiding models that are too complex mathematically, allowing students to assimilate principles without getting sidelined by excess calculations. Applications of unit processes principles are illustrated by example problems in each chapter. Student problems are provided at the end of each chapter; the solutions manual can be downloaded from the CRC Press Web site. Excel spreadsheets are integrated into the text as tables designated by a "CD" prefix. Certain spreadsheets illustrate the idea of "scenarios" that emphasize the idea that design solutions depend upon assumptions and the interactions between design variables. The spreadsheets can be downloaded from the CRC web site. The book has been designed so that each unit process topic is self-contained, with sidebars and examples throughout the text. Each chapter has subheadings, so that students can scan the pages and identify important topics with little effort. Problems, references, and a glossary are found at the end of each chapter. Most chapters contain downloadable Excel spreadsheets integrated into the text and appendices with additional information. Appendices at the end of the book provide useful reference material on various topics that support the text. This design allows students at different levels to easily navigate through the book and professors to assign pertinent sections in the order they prefer. The book gives your students an understanding of the broader aspects of one of the core areas of the environmental engineering curriculum and knowledge important for the design of treatment systems.
Produced biennially, The World's Water provides a timely examination of the key issues surrounding freshwater resources and their use. Each new volume identifies and explains the most significant current trends worldwide, and offers the best data available on a variety of water-related topics. The 2006-2007 volume features overview chapters on: Water and terrorism Business risks of water Water and ecosystems Floods and droughts Desalination Environmental justice and water The book contains an updated chronology of global conflicts associated with water as well as an assessment of recent water conferences, including the 4th World Water Forum. It also offers a brief review of issues surrounding the use of bottled water and the possible existence of water on Mars. From one of the world's leading authorities on water issues, The World's Water is the most comprehensive and up-to-date source of information and analysis on freshwater resources and the political, economic, scientific, and technological issues associated with them.
Tremendous improvements in ground-water sampling methodologies and analytical technologies have made it possible to collect and analyze truly representative samples to detect increasingly lower levels of contaminants-now in the sub-parts-per-billion range. Though these new methods produce more accurate and precise data and are less expensive, many
With thirty revised and updated chapters the new edition of this classic text brings benefits to professors and students alike who will find new sections on many topics concerning modern food microbiology. This authoritative book builds on the trusted and established sections on food preservation by modified atmosphere, high pressure and pulsed electric field processing. It further covers food-borne pathogens, food regulations, fresh-cut produce, new food products, and risk assessment and analysis. In-depth references, appendixes, illustrations, index and thorough updating of taxonomies make this an essential for every food scientist.
Discusses and illustrates concepts for identifying ways of improving productivity of water within basins. The results of applying a water accounting procedure to four sub-basins in South Asia (Bhakra in India; Chishtian in Pakistan; Huruluwewa in nothern Sri Lanka; and Kirindi Oya in southern Sri Lanka) are presented. The methodology used identifies the quantities and productivity of various uses of water within a basin. This information is then used to identify the water-saving potential, and the means of improving the productivity of the managed supplies.
Many water utilities have only a limited knowledge of the structural condition of their underground assests. In order to maintain optimum serviceability, it is increasingly important that utilities gain a better understanding of the current condition and performance of these buried assets. Regular inspection and condition assessment of pipelines can greatly assist utilities with developing robust and cost-effective operational maintenance programs, which will optimize capital expenditure whilst minimizing risk. The aim of the project was to conduct a state-of-the-art literature review of non-interruptive condition assessment inspection devices for large diameter transmission mains (greater than 12 inches). In addition, an expert panel workshop was to be held to review business needs and drivers, the performance of existing technologies, and future underground asset condition assessment research needs. Originally published by AwwaRF for its subscribers in 2004.
FUNDAMENTALS OF WATER SECURITY Understand How to Manage Water Resources to Equitably Meet Both Human and Ecological Needs Burgeoning populations and the ever-higher standards of living for those in emerging countries increase the demand on our water resources. What is not increasing, however, is the supply of water and the total amount of water in earth’s biosphere—water that is integral to all standards of living. Fundamentals of Water Security provides a foundation for understanding and managing the quantity-quality-equity nexus of water security in a changing climate. In a broad sense, this volume explores solutions to water security challenges around the world. It is richly illustrated and pedagogically packed with up-to-date information. The text contains chapter learning objectives, foundation sections reviewing quantitative skills, case studies, and vignettes of people who have made important contributions to water security. To further aid comprehension, end-of-chapter problems are included—both qualitative and quantitative, with solutions available to instructors. Finally, extensive references feature books, journal articles, and government and NGO reports. Sample topics discussed include: How the study of water resources has evolved from a focus on physical availability to include social factors and governance How water security affects multiple disciplines across environmental science and engineering, hydrology, geography, water resources, atmospheric science, chemistry, biology, health science, and social and political science fields How to achieve a sufficient quantity and quality of water to equitably meet both immediate and long-term human and ecological needs Analysis of water security in an integrated manner by underscoring the complex interactions between water quantity, water quality, and society Students taking courses on hydrology, water security, and/or water resource management, along with scientists working in fields where water security is a factor will be able to use Fundamentals of Water Security as a comprehensive textbook to understand and achieve water security.
The tangible value of increased water efficiency, reuse and recycling and improved social license to operate are moving more companies to adopt water stewardship strategies. This book frames an expanded strategy for water stewardship and business value creation, including brand value, that benefits a range of stakeholders including consumers, customers, investors and employees. The book shows that until recently the linkage between full business value and water stewardship has been missing from the corporate agenda. This linkage and value creation from a leading water strategy is increasingly important to socially responsible investors and "aspirationals" who value companies that have a social mission or focus to their overall business strategy. In general the largest portion of a company’s market capitalization is intangible value and understanding how a water strategy contributes to this intangible value is essential. The authors include cases studies and a framework or path forward to guide companies as they seek to build leading water strategy that goes beyond water stewardship to drive full business value from this investment. The book establishes the linkages and value from an integrated water and business strategy and an approach for companies to follow.
With the advent of the Safe Drinking Water Act Amendments of 1986, many water utilities are reexamining their water treatment practices. Upcoming new regulations on disinfection and on disinfection by-products, in particular, are the primary driving forces for the big interest in ozone. It appears that ozone, with its strong disinfection capabilities, and apparently lower levels of disinfection by-products (compared to other disinfectants), may be the oxidant/disinfectant of choice. Many utilities currently using chlorine for oxidation may need to switch due to chlorine by-product concerns. Utilities using chloramines may need to use ozone to meet CT requirements. This book, prepared by 35 international experts, includes current technology on the design, operation, and control of the ozone process within a drinking water plant. It combines almost 100 years of European ozone design and operating experience with North American design/operations experience and the North American regulatory and utility operational environment. Topics covered include ozone chemistry, toxicology, design consideration, engineering aspects, design of retrofit systems, and the operation and economics of ozone technology. The book contains a "how to" section on ozone treatability studies, which explains what information can be learned using treatability studies, at what scale (bench, pilot, or demonstration plant), and how this information can be used to design full-scale systems. It also includes valuable tips regarding important operating practices, as well as guidance on retrofits and the unique issues involved with retrofitting the ozone process. With ozone being one of the hottest areas of interest in drinking water, this book will prove essential to all water utilities, design engineers, regulators, and plant managers and supervisors.
Flocs in Water Treatment is the first of its kind - serving as a valuable aide-mémoire for scientists, process engineers and other professionals engaged in water treatment. The framework described in Flocs in Water Treatment can also be applied to aggregated solids found both in the natural environment, and within a broad range of industries. Flocs (aggregated solid matter) resulting from the combined influence of coagulation and flocculation play a vital role in solid-liquid separation processes. The design and operation of water treatment plants demands a proper understanding of the ways in which flocs affect treatment systems and how their properties can be manipulated to increase treatment efficiency. Flocs in Water Treatment provides a comprehensive account of the ways in which flocs are formed, their characterization, and how they behave in practice. Flocs are complex entities, whose properties defy easy description and measurement. In spite of this, the authors provide a clear and discerning account of the current state of knowledge; this is rooted in science and draws on many disciplines. Based on their experiences in research and the workings of full scale treatment plants, the authors offer candid advice on tasks such as the measurement of floc properties and guidance on problems involving the use of chemicals for controlling floc properties within treatment systems.
Of the four major ways of storing water –in the soil profile, in underground aquifers, in small reservoirs, and in large reservoirs behind dams–the first is possible only for relatively short periods of time. In this paper, the authors concentrate on the three kinds of long-term technologies, and compare the hydrological, operational, economic and environmental aspects of each.
Carefully designed to balance coverage of theoretical and practical principles, Fundamentals of Water Treatment Unit Processes delineates the principles that support practice, using the unit processes approach as the organizing concept. The author covers principles common to any kind of water treatment, for example, drinking water, municipal wastew
Water Wells and Boreholes provides the necessary scientificbackground together with practical advice using global casestudies, in an accessible easy to use style suitable for bothpostgraduates/researchers and practitioners. The book begins with an introduction to the type and uses ofwater wells from water supply and irrigation through to groundwaterremediation. It then covers well siting detailing how to sourcedata from geophysical surveys, remote sensing etc. Well design isthen summarised to ensure the well is stable and cost-effective.The book ends with three chapters covering well construction, welltesting and well performance, maintenance and rehabilitation.
This book may give you the best opportunity of deciding the truth about me and the ministry I hold so dear." -- Oral Roberts "Among several biographies of Oral Roberts, the most recent, most accurate, and best documented is Oral Roberts: An American Life, an objective, impressive study... " -- New York Review of Books "Oral Roberts: An American Life is more than the story of a well-known evangelist and educator. It is the story of a part of the American religious life that not many Americans know or understand.... Dr. Harrell has researched thoroughly and written superbly." -- Billy Graham "... a first-rate biography, one which should give pause to Roberts' supporters and critics alike.... Roberts' first scholarly biographer has done a beautiful job." -- Allen Boyer, Newsday
From Popular Mechanics (9.6 million readers every month), the hands-down experts on the subject of how things work, comes the most complete and up-to-date DIY guide ever published. This highly sophisticated household manual will instantly become the gold standard for anybody who fixes anything. Filled with color photos, drawings, and diagrams, this encyclopedic how-to covers every area of concern to house and apartment owners, with information on planning ahead; decorating; repairs and improvements; security; infestation, rot, and d& electricity; plumbing; heating; outdoor care; and tools and skills. And it’s easy to find the solution to the particular problem that concerns you, without having to go from page to page of continuous text: the straightforward design breaks down the subjects into clearly defined, color-coded chapters. So whether you’re looking for advice on applying finishes, adding decorative paint effects, constructing walls, fixing the roof, or installing a burglar alarm, the instructions are here. • National Publicity • Cross Marketing on the Website, PM zone • Featured in PM’s “Great Stuff Column” • Featured in PM E-Newsletter (125,000 subscribers) • Included in PM “Wish List for Guys” Gift Registry • Advertising in PM Magazine
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