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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.
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
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.
Resolving customer water quality complaints is one of the most important aspects of maintaining a successful water distribution system. Complaint investigation involves not just professional water quality proficiency, but also customer relationship skills. The Water Quality Complaint Investigators Guide covers 90% of the most common complaints from consumers. This revised edition focuses on operational practices and includes two entirely new chapters that address regulatory issues and operational practices to reduce water quality complaints. You will learn: How to avoid complaints How to deal with existing problems Most common complaints and their most common fixes Concrete information on how to deal with customers How to get to the root of the problem before having to go out to the site, which saves time and money The information in this book is of value to those learning how to investigate water quality complaints to veterans who may be facing new complaint situations, as well as the people who supervise them, laboratory technicians and customer service representatives."
AWWA's most popular handbook for distribution operator personnel is an indispensable reference for operators and supervisors alike on water distribution system operation and equipment. This fourth edition is based on the operator certification knowledge requirements included in the Associated Boards of Certification (ABC) Need-To-Know criteria, as well as that of several state certification boards (e.g. California, Pennsylvania, and Texas).What's new?Several new chapters cover topics that have emerged since the publication of the last edition, and others, including the regulatory overview chapter, were revised extensively. New chapters describe the management approach to distribution system operation and the operational practices operators can use to improve system performance. The disinfection of pipelines and storage facilities is now included as its own chapter.And the math calculations that distribution system operators need to know are included as concrete examples of what operators need to know.Additional coverage includes the types of water pipes, installation practices, excavation, pipe flushing and rehabilitation, storage tanks, water wells, pumps, motors, hydrants, meters, valves, corrosion prevention, leak detection, instrumentation and control, maps, records, and maintenance.In addition, the book covers basic hydraulic concepts, health issues, and maintaining water quality in the distribution system. Many cutaway illustrations, new equipment photos, metric conversions, formulas, and equations make it an ideal day-to-day reference.
Producing and delivering the highest quality drinking water takes training, knowledge, and attention to detail. Water operators do it every day with the top training and best practices they get from Water Treatment Operator Training Handbook, AWWA members' most popular choice for operator training and on-the-job reference. The third edition has all the current information that water treatment operators need to produce safe drinking water that protects the public health and to deliver adequate quantities of water at all times for fire-fighting and commercial and residential uses.The book covers all regulations, processes, and procedures of water treatment operations:US water quality regulationsWater sourcesWell design and operationPretreatmentCoagulation and flocculationSedimentationFiltrationDisinfectionSofteningSpecialized treatmentMembranesTestingProcess control and instrumentationSafetyRecord keeping and reporting
Specially designed for in-the-field use, this comprehensive yet compact book will pay for itself over and over in the time you save looking for chemical and mathematic formulas, chemical feed rates, US/metric conversions, pipe and equipment data, operational parameters, construction and installation information, OSHA and USEPA regulations, and much more. More than 20 tables have been updated from the 2004 edition, to reflect information in current AWWA standards and manuals in this new edition. Many example calculations were converted to a more understandable format. Information has also been added on drought, emergency disinfection, membranes, nitrification, fluoridation, external corrosion, backflow prevention, PE pipe, fire flow requirements, sizing service lines and meters, and water audits and loss control, and more. Included is a CD with the checklists which can be printed multiple times along with color photos of the related signage. (Replaces ISBN 9781583213155)
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.
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.
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