Assessment Of Auxiliary Backwash Methods For Rapid Sand Filters
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Assessment Of Auxiliary Backwash Method For Rapid Sand Filters
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Author : Richard C. Pohlman
language : en
Publisher: American Water Works Association
Release Date : 2006
Assessment Of Auxiliary Backwash Method For Rapid Sand Filters written by Richard C. Pohlman and has been published by American Water Works Association this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Technology categories.
The primary objective of this project was to determine differences in filter effluent water quality and media cleanliness between sand filters employing air scour and those employing surface wash. Discussed in detail are the findings that scour and surface wash systems performed similarly relative to filter effluent quality and filter cleanliness. The advantages of one system over another can be site-specific particularly in retrofit applications.
Assessment Of Auxiliary Backwash Methods For Rapid Sand Filters
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Author : Richard C. Pohlman
language : en
Publisher: International Water Assn
Release Date : 2006
Assessment Of Auxiliary Backwash Methods For Rapid Sand Filters written by Richard C. Pohlman and has been published by International Water Assn this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Science categories.
An audit was performed in 1996 and 1998 at GCWW;s Richard Miller Treatment Plant (RMTP) to insure compliance with all current and proposed state and federal maximum contaminant levels. During the audit, training in filter profiling, including coring and floc retention analysis, was provided. Through these techniques, GCWW determined that the filter media was not getting effectively cleaned. Auxiliary backwash was recommended, but no experimental protocol was available to choose among available options. Four filters at RMTP were rebuilt for this study. New Leopold dual parallel lateral type block underdrains with integral media support (IMS) caps were installed. The sand media was completely replaced. Two filters were outfitted with air scour, one with surface wash and one was rebuilt with no auxiliary wash. The backwash procedures were then optimized and standardized before initiating the study. Turbidity and microbial testing were performed at various time intervals throughout the filter run to characterize the quality of the filter effluent. The magnitude and duration of the initial solids breakthrough were determined by the use of continuous turbidimeters and a supervisory control and data acquisition (SCADA) system. Filter cores and floc retention analyses were used to determine the filter media cleanliness.
Water Filtration Practices
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Author : Gary S. Logsdon
language : en
Publisher: American Water Works Association
Release Date : 2011-01-12
Water Filtration Practices written by Gary S. Logsdon and has been published by American Water Works Association this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-01-12 with Water categories.
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. 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.
American Book Publishing Record
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Author :
language : en
Publisher:
Release Date : 2006
American Book Publishing Record written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with American literature categories.
Epa 440 1
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Author :
language : en
Publisher:
Release Date : 1980-12
Epa 440 1 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980-12 with categories.
Development Document For Proposed Effluent Limitations Guidelines New Source Performance Standards And Pretreatment Standards For The Iron And Steel Manufacturing Point Source Category Hot Forming Subcategory
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Author :
language : en
Publisher:
Release Date : 1981
Development Document For Proposed Effluent Limitations Guidelines New Source Performance Standards And Pretreatment Standards For The Iron And Steel Manufacturing Point Source Category Hot Forming Subcategory written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Effluent quality categories.
Development Document For Proposed Effluent Limitations Guidelines New Source Performance Standards And Pretreatment Standards For The Iron And Steel Manufacturing Point Source Category General
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Author :
language : en
Publisher:
Release Date : 1981
Development Document For Proposed Effluent Limitations Guidelines New Source Performance Standards And Pretreatment Standards For The Iron And Steel Manufacturing Point Source Category General written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Effluent quality categories.
Report Summaries
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Author : United States. Environmental Protection Agency
language : en
Publisher:
Release Date : 1983
Report Summaries written by United States. Environmental Protection Agency and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.
Wrc Information
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Author : Water Research Centre (Great Britain)
language : en
Publisher:
Release Date : 1984
Wrc Information written by Water Research Centre (Great Britain) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Water categories.
Theory And Practice Of Water And Wastewater Treatment
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Author : Ronald L. Droste
language : en
Publisher: John Wiley & Sons
Release Date : 2018-07-27
Theory And Practice Of Water And Wastewater Treatment written by Ronald L. Droste and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-27 with Science categories.
Provides an excellent balance between theory and applications in the ever-evolving field of water and wastewater treatment Completely updated and expanded, this is the most current and comprehensive textbook available for the areas of water and wastewater treatment, covering the broad spectrum of technologies used in practice today—ranging from commonly used standards to the latest state of the art innovations. The book begins with the fundamentals—applied water chemistry and applied microbiology—and then goes on to cover physical, chemical, and biological unit processes. Both theory and design concepts are developed systematically, combined in a unified way, and are fully supported by comprehensive, illustrative examples. Theory and Practice of Water and Wastewater Treatment, 2nd Edition: Addresses physical/chemical treatment, as well as biological treatment, of water and wastewater Includes a discussion of new technologies, such as membrane processes for water and wastewater treatment, fixed-film biotreatment, and advanced oxidation Provides detailed coverage of the fundamentals: basic applied water chemistry and applied microbiology Fully updates chapters on analysis and constituents in water; microbiology; and disinfection Develops theory and design concepts methodically and combines them in a cohesive manner Includes a new chapter on life cycle analysis (LCA) Theory and Practice of Water and Wastewater Treatment, 2nd Edition is an important text for undergraduate and graduate level courses in water and/or wastewater treatment in Civil, Environmental, and Chemical Engineering.