This pocket field guide explains dry, liquid, and gas chemical feed systems, calibrations, and handling and storage requirements for various types of chemicals used in water treatment. Handy feed calculators for gas, liquid, and dry chemicals are included. Table of Contents 1. Chemical Feed Quality Control 2. Chemical Feed-Common System Components 3. Chemical Feed of Gases-Equipment and Systems 4. Chemical Feed of Gases-Calculations and Examples 5. Dry Chemical Feeders and Systems 6. Dry Chemical Feed-Calculations and Examples 7. Liquid Chemical Feed Equipment and Systems 8. Liquid Chemical Feed-Calculations and Examples Appendix A: Chemical Specification Example Language Appendix B: Conversion Factors Appendix C: Density Tables for Common Liquid Chemicals Appendix D: Calculator Derivations Appendix E: Atomic Weights and Measures

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.

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.

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.

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.

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.

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.

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.

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

This book deals with natural treatment systems and the challenges the water industry faces in dealing with sustainability and the realisation of reaching Net Zero by 2030.Surface waters are all under threat, with freshwater ecosystems now facing unprecedented levels of contamination, even after a century of ever stricter legislation and regulation. The increase in population and especially in urbanization without sufficient planning and investment to ensure adequate wastewater collection and treatment coupled with the need to reduce greenhouse gas emissions associated with wastewater treatment is leading to a crisis in wastewater treatment in many countries.Natural treatment systems which use plants and soil micro-organisms are very much nature-based solutions and wherever applicable might offer sustainable and low emissions options for a range of wastewater problems protecting surface waters as well as creating new habitats to support and enhance wildlife diversity. In terms of circularity, natural treatment systems have the potential to produce a staggering array of useful and valuable by-products, including high-value compounds for the pharmaceutical industry.Related Link(s)

SOLID WASTE ENGINEERING is one of a handful of engineering textbooks to address the growing and increasingly intricate problem of controlling and processing the refuse created by our urban society. While the authors discuss issues such as regulations and legislation, their main emphasis is on solid waste engineering principles. They maintain their focus on principles by first explaining the basic principles of the field, then demonstrating how these principles are applied in real world settings through worked examples.

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.

Incidents in the past have made scientists aware of the need for accurate methods of radionuclide analyses in order to estimate the risk to the public from released radioactivity. This book is an authoritative, up-to-date collection of research contributions presented at the 12th International Symposium on Environmental Radiochemical Analysis. Representing the work of leading scientists from across the globe it presents information on radiochemical analysis, measurement of radioactivity, naturally occurring radioactive materials, radioactively contaminated land, fate of radionuclides in natural and engineered environments and behaviour and analysis of radionuclides in radioactive wastes. This essential work will be a key reference for graduates and professionals who work across fields involving analytical chemistry, environmental science and technology, and waste disposal.

The clear, up-to-date, practical, visual, application-focused introduction to modern environmental technology. Now fully updated, Basic Environmental Technology, Sixth Edition emphasizes applications while presenting fundamental concepts in clear, simple language. It covers a broad range of environmental topics clearly and thoroughly, giving students a solid foundation for further study and workplace success. This edition adds new coverage of environmental sustainability, integrated water management, low impact development, green building design, advanced water purification, dual water systems, new pipeline materials, hydraulic fracturing, constructed wetlands, single stream municipal solid waste recycling, plasma gasification of waste, updated EPA standards, and more. Hundreds of clear diagrams and photographs illuminate key concepts; practice problems and review questions offer students ample opportunity to deepen their mastery. Math is applied at a basic level, and all computations are fully explained with example problems; both U.S. and metric units are used. Students with less academic experience will also appreciate this text's review of basic math, and its basic primers on biology, chemistry, geology, hydrology, and hydraulics. Teaching and Learning Experience This easy-to-read text will help technology students quickly understand the latest issues and techniques related to water supply, waste management, and pollution control. It provides: Thorough, up-to-date, application-focused coverage of the field's key issues, challenges, and techniques: Prepares students for success in roles involving hydraulics, hydrology, water quality, water pollution mitigation, drinking water purification, water distribution systems, sanitary sewers, stormwater management, wastewater treatment/disposal, municipal solid waste, hazardous waste management, and the control of air and noise pollution Simple and clear, with plenty of numerical examples and basic primers for less prepared students: Written and designed for maximum accessibility, with introductory math and science primers for every student who needs them, and step-by-step walkthrough examples for all significant computations Hundreds of diagrams and photos, and extensive pedagogical resources for faster, more intuitive learning: Teaches visually and through example wherever possible; contains clear chapter summaries, an expanded glossary, and comprehensive, updated Instructor's materials

A practical guide to wastewater treatment for plant technicians and operators

This book, the first in a series on the microbiology of wastewater treatment, comprises the critical topics of cost-effective operation, permit compliance, process control, and troubleshooting in wastewater treatment plants. Avoiding the technical jargon, chemical equations, and kinetics that typically accompany such texts, Nitrification and Denitrification in the Activated Sludge Process directly addresses plant operators and technicians, providing necessary information for understanding the microbiology and biological conditions that occur in the treatment process.

Of special interest to wastewater treatment plant operators are the bacteria that degrade nitrogenous wastes–the nitrifying bacteria–and the bacteria that degrade carbonaceous wastes–the cBOD-removing bacteria. Both groups of bacteria need to be routinely monitored and operational conditions favorably adjusted to ensure desired nitrification. Each chapter in this groundbreaking study offers a better understanding of the importance of nitrification and denitrification and the bacteria involved in these crucial processes. Chapters include:

• Organotrophs
• The Wastewater Nitrogen Cycle
• Nitrite Ion Accumulation
• Dissolved Oxygen
• Denitrifying Bacteria
• Gaseous End Products
• Free Molecular Oxygen
• The Occurrence of Denitrification

Nitrification and Denitrification in the Activated Sludge Process is an ideal companion for operators and technicians of wastewater treatment plants as they study to receive certification in their field, now required in more than thirty states. Sanitary engineers, chemists, microbiologists, and educators will benefit from this comprehensive guide.

This book provides an overview of biodegradation. The first chapter provides a detailed description on the ability of Rhodococcus UKMP-5M to act as a biological tool to remediate phenol, chlorinated compounds, nitrile, oil spillage and cyanide which selection was primarily based on their large-scale presence in industrial wastewater. Chapter Two presents advances made in recent decades on the understanding of the metabolic capabilities of sulfate reducing bacteria (SRB) from marine and other types of sediment (i.e., freshwater, estuarine) for the biotransformation of carbon compounds and sulfate that are present as pollutants in several types of waters and soils. Chapter Three concentrates on the different parameters that influence biodegradation speed and energy release potential. Chapter Four reports and discusses several examples on biodegradation with bacteria and fungi of organochlorides, organophosphates, and more recently of pyrethroid pesticides. Chapter Five discusses heavy metals as biodegradation inhibitors of the forest litter in contaminated areas. Chapter Six introduces ecologically feasible ways of treating environments contaminated by BTEX (a mixture of benzene, toluene, ethylbenzene and xylene) based on efficient microbial metabolism.

The Department of Energy (DOE) faces significant technical challenges in successfully constructing and operating the Waste Treatment and Immobilization Plant (WTP) project that is to treat millions of gallons of highly radioactive liquid waste resulting from the production of nuclear weapons. In December 2000, DOE awarded Bechtel a contract to design and construct the WTP project at DOE's Hanford Site in Washington State. This projectone of the largest nuclear waste cleanup facilities in the worldwas originally scheduled for completion in 2011 at an estimated cost of $4.3 billion. Technical challenges and other issues, however, have contributed to cost increases and schedule delays. This book examines remaining technical challenges, if any, the WTP faces; the cost and schedule estimates for the WTP; and steps DOE is taking, if any, to improve the management and oversight of the WTP project. Moreover, DOE recently reported that nuclear waste is leaking from two of its underground storage tanks. DOE has been experiencing delays in the construction of the WTP, a collection of facilities that are to treat the tank waste for disposal. These recently reported leaks and intrusions, combined with construction delays, have raised questions among regulators, the public, and Congress about the risks posed by continuing to store waste in the aging tanks. The book examines the condition of the tanks; actions DOE has taken or planned to respond to the recent tank leaks and water intrusions; and the extent to which DOE's tank management plans consider the condition of the tanks and the delays in completing construction of the WTP.

Water pollution occurs when toxic pollutants of varying kinds (organic, inorganic, radioactive and so on) are directly or indirectly discharged into water bodies without adequate treatment to remove such potential pollutants. Today's sources of these potential pollutants, which cause high deterioration of freshwater quality, are city sewage and industrial waste discharge, human agricultural practices, industrial waste disposal practices, mining activities, civil and structural work activities and obviously natural contamination with climate change. When our water is polluted, it is not only devastating to the environment but also to human health. Therefore, development of water and wastewater treatment processes to alleviate water pollution has been a challenging and demanding task for engineers, scientists and researchers. Perhaps this is even more challenging for underdeveloped and developing countries, where water and wastewater treatment facilities, knowledge and infrastructure are limited. Water and wastewater treatment processes are broad and often multidisciplinary in nature, comprising a mixture of research areas including physical, chemical and biological methods to remove or transform various potential pollutants. This is in hopes to achieve acceptable water quality and satisfy governmental and environmental protection agencies' laws and regulations. With these objectives, this book has been written in order to provide various research results and compilation and up-to-date development on the current states of knowledge and techniques in the broad field of water and wastewater treatment processes. Basically, this book will give a comprehensive understanding and advancement and application of various physical, chemical and biological treatment methods in the reduction of potential pollutants (inorganics/organics) from water and wastewater. There are a total 18 book chapters contributed by large number of expert authors around the world, covering the following main research areas: Physical, chemical and biological water treatment processes such as adsorption, biosorption, coagulation/flocculation, electrocoagulation, denitration, membrane filtration/separation, photo-catalytic reduction, advanced oxidation, nutrients removal by struvite crystallisation and nanotechnology; Physical, chemical and biological methods for municipal wastewater and industrial wastewater treatment plants such as primary-secondary sludge treatments, anaerobic digestions, aerobic treatment, activated sludge processes, dewaterability by flocculants, pre-treatments of sludge and rheology of sludge in wastewater treatment; Various operational units/equipment and process control of wastewater treatment plant.

For the rural homeowner, this illustrated, easy-to-understand manual covers the basics of a septic tank and drain field, potential problems and solutions, greywater systems, composting toilets, and other alternatives. 125 illustrations. Tables.

A sustainable feedstock supply is one of the primordial issues for the transition towards the bio-based economy. Therefore, the resource base needs to be identified from the perspective of supply and demand. The exploitable biomass is of a highly heterogeneous origin, either derived from specially grown crops or from crop residues of food and feed production, forestry residues and marine flora. Municipal waste, manure and animal products and industrial wastes also need to be considered as potential resources for bio-based products and services. In this regard, enzymes are known to play a pivotal role not only at the stage of production of these value-added products, but also as an important component of value-added products from different alternative biomasses. Therefore, enzymes become an important factor as value-added products and for value-added products. The use of enzymes holds great potential value for industries in many sectors, including energy, organic chemicals, polymers, fabrics and healthcare products. In general, an enzyme based bio-economy offers many benefits and opportunities. For completed book description, please visit our link below.

In this book, the authors gather and present current research in the study of the technological systems, management practices and environmental impact of recycling. Topics discussed in this compilation include road pavement recycling technologies; polymer-base waste materials for recycling; cheese whey recovery technologies; environmental indicators for the plastic recycling industry; glass fibre replacement with banana tree fibre in high density polyethylene composites; recycling of different spent earth from filtration in the production of ceramic materials; recycling and reusing fibre-reinforced composites; recycling of regenerated wastewater using water cascade analysis in pulp and paper mills; disaster waste generated after the Great East Japan Earthquake; the social and environmental responsibilities of recycling; thermal degradation of polymers during their mechanical recycling; and recycling of petroleum oily sludge to produce sustainable clay ceramics.

Currently, the management of solid waste represents a major economic and environmental issue throughout the world. Trends in waste generation show an increase in the volumes of waste produced in most countries and it is clear that the trend will continue. The treatment and disposal of solid waste involves a range of processes including landfill, incineration and composting, all of which may result in emissions to the environment. Municipal investments are said to be highly capital-intensive. As a result, every investment needs to be preceded by the economic analysis which allows for the estimation of the effectiveness of the investment. Investments are made to make profits and to increase savings. This book presents current research in the study of municipal solid waste, with a particular focus on recycling and cost effectiveness.

Radioactive contamination is the uncontrolled distribution of radioactive material in a given environment. Radioactive contamination is typically the result of a spill or accident during the production or use of a radionuclide. Contamination may occur from radioactive gases, liquids or particles. For example, if a radionuclide used in nuclear medicine is accidentally spilled, the material could be spread by people as they walk around. Radioactive contamination may also be an inevitable result of certain processes, such as the release of radioactive xenon in nuclear fuel reprocessing. In cases where radioactive material cannot be contained, it may be diluted to safe concentrations. Containment is what differentiates radioactive material from radioactive contamination. Therefore, radioactive material in sealed and designated containers is not properly referred to as contamination. According to various studies, although some radioactive contamination may be smaller than the internationally permitted radioactivity standards, it gains significance day by day and therefore is one of the potentially developing concerns in years to come. This book presents current research on this serious environmental and health issue.