Water operators will find a wealth of hands-on information on the operation and maintenance of pretreatment, rapid-rate granular media filtration, slow-sand filtration, and diatomaceous-earth filtration systems in this book. This practical guide provides recommended procedures for operating, monitoring, and maintaining all types of filters used for conventional water treatment. Learn how to mix and feed chemicals, monitor filter performance during difficult water episodes, backwash and return filters to service, inspect and maintain filters for optimal performance. These procedures are tested and time-proven by hundreds of water utilities and filtration experts to provide high filter efficiency, excellent water quality, long filter runs and minimum downtime. The book also gives advice on what not to do-and why-so you can avoid water quality problems, filter damage, and treatment problems in the future.

If you have responsibility for forecasting future water demand in your city, AWWA's newly revised Forecasting Urban Water Demand provides all the tools you need to accurately forecast drinking-water requirements for your city in the short-, mid-, and long-term. Forecasting Urban Water Demand examines the full range of influences on urban water demand-population, weather, climate, water prices/rates, and short- and long-term conservation programs. It describes how to use all water demand-forecasting techniques used by US water utilities:1. Annual per capita water demand forecasts 2. Annual water demand forecasts by major customer class 3. Peak day forecasts 4. Monthly system water demand forecasts 5. Daily water demand forecasts 6. Revenue forecasts linked with water demand forecastsThe book provides guidance for choosing the right forecasting methods, depending upon the uses for which you will use the forecast, such as sizing system capacity and raw water supply, rate setting, revenue forecasting, or planning distribution system improvements. Additionally, the book tells you what data you need to do forecasting, and shows you how to use such useful techniques as curve fitting, statistical regression analysis, and other powerful methodologies. You will be able to do a water demand forecast as sophisticated or as simple as you need, with the information in this book. An included CD contains a wealth of data that will help you to understand standard forecasting concepts and practice standard forecasting procedures.The CD contains * 20 years' of daily weather data (a typical data chart available from the National Climactic Data Center, useful for many demand-analysis applications) * 66 years' of daily water use data (a remarkable series of data, used for several important exercises in water demand analysis) * Demand curve chart (experiment with the relationship between price and demand) * 15 years' of data to analyze per capita water demand (understand such concepts as regression analysis) * 10 years' of monthly data on water use proportions and factors (predict seasonal variation of water use for a customer class or utility) * Sector water use data and forecast (example of historic data on residential and commercial/industrial water use and 25-year forecasts based on growth rates) * Types of water demand forecasts and applications (know which forecast application to use for short-, mid-, or long-term forecasts) NEW IN THE SECOND EDITION 1. Findings from the Water Demand Survey, a polling of more than 600 US water utility managers on their forecast practices, conservation programs, and current and anticipated trends per capita water use in their systems. 2. New chapters on long-term water conservation and short-term emergency conservation. 3. Expanded coverage of impacts of weather and climate change on water demand modeling. 4. Expanded information on price elacticity with example calculations.

Hazardous waste is a waste with properties that make it dangerous or potentially harmful to human health or the environment. Hazardous waste generally exhibits one or more of these characteristics: ignitability, corrosivity, reactivity or toxicity. The universe of hazardous wastes is large and diverse. Hazardous wastes can be liquids, solids, contained gases, or sludges. They can be the by-products of manufacturing processes or simply discarded commercial products, like cleaning fluids or pesticides. One major type is radioactive waste. This book brings together the latest research in this diverse field.

The book provides a comprehensive study of satellite communications systems engineering and outlines how satellite network elements interact to form communication required.

This handy field reference contains all the information, charts, graphs, formulas, and definitions that are needed by wastewater system operators in performing their daily duties.
This guide compiles information from wastewater operations manuals, handbooks, standards, and many other information sources. Major sections include math, conversion factors, chemistry, safety, collection, pumps and motors, flow, wastewater treatment, biosolids, discharge, disinfection, abbreviations, and acronyms.
Information is grouped based on how it would be used by the operator. Thus, all the information you need relating to pumps will be found in its own chapter and all information on biosolids in another. The guide's small size (4-1/4 in. x 7-1/4 in.) and sturdy cover means you can throw it in your truck and go Low price means every operator can have a personal copy.

Water utility customer service representatives face a variety of customer problems and complaints every day. They need specific training in how to deal with customer problems quickly and provide satisfactory solutions. Focus First on Service: The Voice and Face of Your Utility is a new employee training workbook written specifically for water utility customer service representatives. Designed for either classroom or individual study, the workbook covers all aspects of water utility customer service, from what is meant by water utility customer service and why it is important, to specific types of issues and problems employees will encounter on the job.Chapters include exercises that allow trainees to immediately apply what they learn to solve a variety of customer problems that they might encounter on the job. Sample scenarios provide typical conversations between customers and the utility representatives on a variety of problems, such as a billing question or service cutoff. The scenarios offer acceptable and unacceptable ways of handling a variety of common customer encounters.Sample letters and e-mails are included to reply to customer problems, such as high bill complaints or taste-and-odor problems.

Fiscal health and customer satisfaction are the dominant performance indicators for public utility companies. However, customers view some fiscal policies that may be positive for a utility's fiscal health, such as securing deposits, as negative in relation to their satisfaction with the water utility.This book describes the impacts of credit and collections policies on revenues and customer satisfaction ratings at municipal utilities. Utility managers and financial officers will find much helpful information for formulating utility policies that will maximize both revenue and customer satisfaction.Table of Contents 1. Prioritizing Collections 2. Prioritizing Service 3. Inactive Timeline 4. Application for Service 5. Application Fees and Deposits 6. Certificates of Deposit 7. Credit Scoring 8. Credit Databases 9. Billing Frequency10. Multiple Active Timelines11. Bad Checks12. Payment Extensions and Arrangements13. Late Fees14. Automatic Phone Dialer Contacts15. Field Collections16. Disconnection/Shut-off17. Technologies for Disconnection/Reconnection18. Deconstructing Bad Debts19. In-house Versus Outsourcing Collections20. Collections Agency Request for Proposal21. Collections Contract Terms22. Bankruptcy Processing23. Sweep Accounts24. Selling Debts25. Tracking Accounts Receivable, Collections, and Write-offsAppendix A: 45 Credit and Collection PoliciesAppendix B: Collections Agency Request for Proposal

According to the Centers for Disease Control and Prevention, 32 percent of waterborne disease outbreaks are caused by pathogen intrusion in the water distribution system. Incorporating disinfection practices for water mains and storage facilities can reduce the risk of microbial contamination. This handy guidebook provides all the correct field practices for preventing microbial contamination of the water flowing in water mains, storage tanks, and other distribution system components. NOTE TO WATER UTILITIES: To ensure that mains and storage facilities are properly disinfected prior to use, AWWA advises that water utilities should insist that their pipeline contractors have and use this book. French language version available.

Hazardous waste is a waste with properties that make it dangerous or potentially harmful to human health or the environment. Hazardous waste generally exhibits one or more of these characteristics: ignitability, corrosivity, reactivity or toxicity. The universe of hazardous wastes is large and diverse. Hazardous wastes can be liquids, solids, contained gases, or sludges. They can be the by-products of manufacturing processes or simply discarded commercial products, like cleaning fluids or pesticides. One major type is radioactive waste. This book brings together the latest research in this diverse field.

Most water operators cite mathematics as the subject giving them the most difficulty on their operator certification exams, as well as on the job. This math study text is designed to help water treatment operators improve their math skills, pass certification exams, perform their jobs better, and advance their careers.The book provides hundreds of math problems in all areas of water treatment operations, from beginner to advanced. Each problem is immediately followed by the answer and the method for solving the problem. Many problems include explanatory comments to aid your understanding of the mathematical logic behind the solution.Appendixes provide common conversion factors, a summary of the equations used in the book, chemistry tables, maximum contaminant level charts, and abbreviations to which you can refer when working out the problems. In addition, a CD-ROM containing CT tables in Microsoft Excel format is included with the book.Take your operator exams in confidence and improve your on-the-job performance.

Most water operators cite mathematics as the subject giving them the most difficulty on their operator certification exams, as well as on the job. This math study text is designed to help water distribution operators improve their math skills, pass certification exams, perform their jobs better, and advance their careers.The book provides hundreds of math problems in all areas of water distribution operations, from beginner to advanced. Each problem is immediately followed by the answer and the method for solving the problem. Many problems include explanatory comments to aid your understanding of the mathematical logic behind the solution.Appendixes provide common conversion factors, a summary of the equations used in the book, chemistry tables, maximum contaminant level charts, and abbreviations to which you can refer when working out the problems.Take your operator exams in confidence and improve your on-the-job performance.

Hazardous waste is a waste with properties that make it dangerous or potentially harmful to human health or the environment. Hazardous waste generally exhibits one or more of these characteristics: ignitability, corrosivity, reactivity or toxicity. The universe of hazardous wastes is large and diverse. Hazardous wastes can be liquids, solids, contained gases, or sludges. They can be the by-products of manufacturing processes or simply discarded commercial products, like cleaning fluids or pesticides. One major type is radioactive waste. This new book brings together the latest research in this diverse field.

Hazardous waste is a waste with properties that make it dangerous or potentially harmful to human health or the environment. Hazardous waste generally exhibits one or more of these characteristics: ignitability, corrosivity, reactivity or toxicity. The universe of hazardous wastes is large and diverse. Hazardous wastes can be liquids, solids, contained gases, or sludges. They can be the by-products of manufacturing processes or simply discarded commercial products, like cleaning fluids or pesticides. One major type is radioactive waste. This book brings together the latest research in this diverse field.

Although much has been done to simplify US drinking water regulations, a confusing array of technical information still exists, and sorting it all out is problematic. This operations-oriented book explains all the regulations and how they fit together. The book provides regulatory guidance and advisories related to USEPA regulations in a single, easy-to-follow guide. It compiles information from USEPA, AWWA, and others and presents it in an understandable format. Useful to water utility managers, treatment and distribution operators, and environmental engineers.

Adequate and reliable emergency and standby power is essential for all water and wastewater utilities. This book provides guidance to Assess the vulnerability, condition, and reliability of primary electrical equipmentEvaluate options for on-site electrical-generating equipmentAssess placement locations to facilitate integration with the existing electrical systemsDetermine current and historical electrical load demands and estimate future electrical demandsDetermine backup-power capacity needed to meet peak demandTable of Contents IntroductionHistoryAn Overview of Emergency and Standby PowerDefining Water and Wastewater Utility NeedsRisk Factors and Scenario PlanningPlanning, Evaluation, and DesignConclusionAppendices: Standby Power Information Checklist Survey Questions Emergency Response Scenario Planning Case Studies Cleveland Division of Water: Lessons Learned Emergency Preparedness Checklist

The papers in this volume arose out of two workshops entitled "Confinement and Remediation of Environmental Hazards," and "Resource Recovery," as part of the IMA 1999-2000 program year. These workshops brought together mathematicians, engineers and scientists to summarize recent theoretical, computational, and experimental advances in the theory of phenomena in porous media. The first workshop focused on the mathematical problems which arise in groundwater transport of contamination, and the spreading, confinement and remediation of biological, chemical and radioactive waste. In the second conference, the processes underlying petroleum recovery and the geological time scale of deformation, flow and reaction in porous media were discussed. Simulation techniques were used to simulate complex domains with widely-ranging spatial resolution and types of physics. Probability funcional methods for determining the most probable state of the subsurface and related uncertainty were discussed. Practical examples included breakout from chemical and radioactive waste repositories, confinement by injection of pore plugging material and bioremediation of petroleum and other wastes. This volume will be of interest to subsurface science practitioners who would like a view of recent mathematical and experimental efforts to examine subsurface science phenomena related to resource recovery and remediation issues.

On October 11, 2000, a breakthrough of Martin County Coal Corporation's coal waste impoundment released 250 million gallons of slurry in near Inez, Kentucky. The 72-acre surface impoundment for coal processing waste materials broke through into a nearby underground coal mine. Although the spill caused no loss of human life, environmental damage was significant, and local water supplies were disrupted. This incident prompted Congress to request the National Research Council to examine ways to reduce the potential for similar accidents in the future. This book covers the engineering practices and standards for coal waste impoundments and ways to evaluate, improve, and monitor them; the accuracy of mine maps and ways to improve surveying and mapping of mines; and alternative technologies for coal slurry disposal and utilization. The book contains advice for multiple audiences, including the Mine Safety and Health Administration, the Office of Surface Mining, and other federal agencies; state and local policymakers and regulators; the coal industry and its consultants; and scientists and engineers. Table of Contents Front Matter Executive Summary 1 Introduction 2 Current Regulatory Framework 3 Planning Coal Slurry Refuse Impoundments 4 Mine Mapping and Surveying 5 Technologies For Locating Mining Workings 6 Limiting Potential Failures 7 Alternatives for Future Coal Waste Disposal 8 Conclusions and Recommendations References Appendix A: Biographical Sketches of Committee Members Appendix B: Information Provided to the Committee Appendix C: Glossary Appendix D: Acronyms and Abbreviations Appendix E: Geophysical Techniques

This Tutorial Text provides a comprehensive introduction to the subject of contamination control, with specific applications to the aerospace industry. The author draws upon his many years as a practicing contamination control engineer, researcher, and teacher. The book examines methods to quantify the cleanliness level required by various contamination-sensitive surfaces and to predict the end-of-life contamination level for those surfaces, and it identifies contamination control techniques required to ensure mission success.

Drinking water quality can degrade as the water travels through the distribution system. This book describes causes of water-quality degradation in the distribution system and provides solutions to all common water quality problems.Information is organized into nine sections: 1. Introduction -- Five critical steps to achieving and maintaining distribution system water quality 2. Microbiological Issues -- Control of biofilm growth and eliminating pathogens in the distribution system 3. Chemical & Physical Issues -- Maintain disinfectant residuals and reduce disinfectant by-products. 4. Chloramine Conversion Issues -- Gain the benefits of chloramines as a residual disinfectant, while controlling nitrification and taste-and-odor problems. 5. Corrosion Control -- Minimize or eliminate the effects of pipeline corrosion on water quality. 6. Rapid or Real-Time Monitoring -- Optimize distribution system operation and water quality, even as conditions change. 7. Operational Practices -- Distribution system operation strategies that will assure pristine water quality all the way to customers' taps. 8. Flushing to Maintain Water Quality -- Flushing practices to preserve water quality. 9. Water Quality Computer Modeling (Computer-Aided Network Analysis) -- Accuratly predict changes in delivered water quality caused by changes in treatment or distribution operations.

Solid waste has become a major consequence of development and modernization, yet some of the greatest challenges to its management are felt most keenly in the developing countries. This is part of the larger paradox of development; namely, that factors that create the most intransigent problems currently facing the developing countries are invariably those which derive from development itself.Introduction This volume presents a collection of papers which, with perspectives from Africa and the Caribbean, raise critical issues in the management of solid waste. It is intended to offer a basis for discussion among the wide range of disciplines and sectors involved in solid waste management and suggest directions for future work both in the theoretical and practical dimensions of the challenge with which developing countries are confronted.

This volume provides in-depth coverage of environmental pollution sources, waste characteristics, control technologies, management strategies, facility innovations, process alternatives, costs, case histories, effluent standards, and future trends in waste treatment processes. It delineates methodologies, technologies, and the regional and global effects of important pollution control practices. The book also focuses on toxic heavy metals in the environment, various heavy metal decontamination technologies, brownfield restoration, and industrial, agricultural, and radioactive waste management. It discusses the importance of metals such as lead, chromium, cadmium, zinc, copper, nickel, iron, and mercury.

A guide to the extraction, isolation and purification of bioactive compounds from agricultural wastes, and their applications Recovering Bioactive Compounds from Agricultural Wastes offers a guide to the many uses of agricultural wastes from the production of major food types including tea, coffee, cacao, cashew, fruit and vegetables, wine, edible oils, sugar, starch and more. Written by a noted expert in the field, the text explores the various methods for extraction, isolation and purification of bioactive compounds from agricultural wastes. The author also makes recommendations concerning the most effective applications of bioactive compounds and discusses the economics and market for recovered bioactive compounds. Recent studies reveal that bioactive compounds have been directly linked to biological activity such as antioxidant, anticancer, antidiabetic, anti-cardiovascular capacities, etc. In particular, agricultural wastes are considered as potential and inexpensive sources of bioactive compounds. Recovering Bioactive Compounds from Agricultural Wastes fills a gap in the literature by providing a text that explores this important topic and examines the: * Sustainability of waste management and shows how to extract, isolate and purify bioactive compounds from agricultural wastes, and their most effective application * Wide range of agricultural food produce that can be processed and the special techniques used for recovering the bioactive compounds from these sources * Health applications of bioactive compounds that have been directly linked to pharmacological activities including antioxidant, anticancer, and more Designed for use by researchers and producers in the agriculture, pharmaceuticals and nutraceuticals, Recovering Bioactive Compounds from Agricultural Wastes contains the knowledge, history and definition, classification and synthesis, and extraction techniques of bioactive compounds.

The most common activated sludge operating problems causing poor plant performance are related to solids separation. Especially common are bulking and foaming. Without a proper scientific foundation to support the efforts of wastewater treatment plant management, many attempts to thwart bulking and foaming have failed.

Manual on Solving Activated Sludge Bulking, Foaming, and Other Solids Separation Problems provides the critical scientific and practical underpinnings needed to understand and combat these problems. The third edition of this flagship text is a comprehensive, concise guide to the microbiological and technical aspects of controlling all types of solid separation problems.

The scientific theory is applied to real-world scenarios, greatly increasing the number of real-world examples of successful control methods. New information is also included on filamentous organism growth and its application in the control of sludge bulking and foaming. Now plant operators, regulators and wastewater engineers have a complete guide for battling these formidable design and operating problems.

One of the physical costs of our society's breakneck consumption, sprawl, and technological innovation and production is the increasing amount of terrain relegated to accommodating the resulting waste and wasted space. These "marginal landscapes" can be divided into four distinct categories: sinks; ruins or abandoned land; toxic or damaged land; and waste landscapes. Although Professor Engler discusses all four types, she is concerned mostly with waste landscapes - "landfills, recycling and waste transfer centers, and sewage treatment plants," as she addresses two distinct aspects of waste landscapes: 1) the historic and cultural context of waste, and 2) the professional planning practices and aesthetic concerns of those who deal with waste and its landscapes. Ultimately, Professor Engler seeks to change our ideas about waste places through her discussion of how landscape design can function within the scientific and technological parameters of safety and environmental concerns to make waste places more central to our thinking and perception. In so doing, she reviews the physical evolution of waste sites, and scrutinizes perceptions and representations of these landscapes, and grounds her ideas in critiques of what environmental designers and artists have done recently with waste places to change public perceptions. Designing America's Waste Landscapes is a pioneering and original work that will appeal to professional planners and landscape designers, and students and scholars in landscape design and planning, environmental studies, urban studies, cultural geography, and even the history of technology.

The first comprehensive guide to managing the entire solid waste cycle.

Combining integrated solid waste management (ISWM) with the traditional coverage of landfill design, construction, and monitoring, this new edition of Amalendu Bagchi's classic guide is in response to the growing need for a comprehensive approach toward managing solid waste--from collection to recycling to eventual disposal.

This far-reaching guide provides professionals of various disciplines with fast, easy access to authoritative information on source reduction, reuse, recycling, composting, contaminated soil remediation, incineration, and medical waste management. It also presents the latest developments on bioreactor landfills, wetland mitigation, remediation of landfills, waste management-related health and safety, and financial issues affecting the industry.

Topics covered in this "Third Edition" include: The role of geotechnical engineering in a variety of environmental issues Planning, marketing, and quality con trol for reuse and recycling facilities Health, safety, and economic issues related to composting Risk assessment of contaminated lands Leachate and gas generation in landfills Microbiology of landfills And much more

Supplemented with hundreds of helpful drawing, tables, and photos, "Design of Landfills and Integrated Solid Waste Management, Third Edition" is an indispensable resource for environmental engineers, hydrogeologists, and landfill operators and owners. It is also an excellent text for environmental science and engineering courses related to waste management.