Assessment Of Auxiliary Backwash Method 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.
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 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.
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.
Water Supply Systems
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Author : United States. Bureau of Yards and Docks
language : en
Publisher:
Release Date : 1959
Water Supply Systems written by United States. Bureau of Yards and Docks and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1959 with Navy-yards and naval stations 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.
Water And Wastewater Engineering Design Principles And Practice Second Edition
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Author : Mackenzie L. Davis
language : en
Publisher: McGraw Hill Professional
Release Date : 2019-10-04
Water And Wastewater Engineering Design Principles And Practice Second Edition written by Mackenzie L. Davis and has been published by McGraw Hill Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-10-04 with Technology & Engineering categories.
Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. A Fully Updated, In-Depth Guide to Water and Wastewater Engineering Thoroughly revised to reflect the latest advances, procedures, and regulations, this authoritative resource contains comprehensive coverage of the design and construction of municipal water and wastewater facilities. Written by an environmental engineering expert and seasoned academic, Water and Wastewater Engineering: Design Principles and Practice, Second Edition, offers detailed explanations, practical strategies, and design techniques as well as hands-on safety protocols and operation and maintenance procedures. You will get cutting-edge information on water quality standards, corrosion control, piping materials, energy efficiency, direct and indirect potable reuse, and more. Coverage includes: • The design and construction processes • General water supply design considerations • Intake structures and wells • Chemical handling and storage • Coagulation and flocculation • Lime-soda and ion exchange softening • Reverse osmosis and nanofiltration • Sedimentation • Granular and membrane filtration • Disinfection and fluoridation • Removal of specific constituents • Water plant residuals management, process selection, and integration • Storage and distribution systems • Wastewater collection and treatment design considerations • Sanitary sewer design • Headworks and preliminary treatment • Primary treatment • Wastewater microbiology • Secondary treatment by suspended growth biological processes • Secondary treatment by attached growth and hybrid biological processes • Tertiary treatment • Advanced oxidation processes • Direct and indirect potable reuse
Water And Wastewater Engineering
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Author : Mackenzie L. Davis
language : en
Publisher: McGraw Hill Professional
Release Date : 2010-04-05
Water And Wastewater Engineering written by Mackenzie L. Davis and has been published by McGraw Hill Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-04-05 with Technology & Engineering categories.
An In-Depth Guide to Water and Wastewater Engineering This authoritative volume offers comprehensive coverage of the design and construction of municipal water and wastewater facilities. The book addresses water treatment in detail, following the flow of water through the unit processes and coagulation, flocculation, softening, sedimentation, filtration, disinfection, and residuals management. Each stage of wastewater treatment--preliminary, secondary, and tertiary--is examined along with residuals management. Water and Wastewater Engineering contains more than 100 example problems, 500 end-of-chapter problems, and 300 illustrations. Safety issues and operation and maintenance procedures are also discussed in this definitive resource. Coverage includes: Intake structures and wells Chemical handling and storage Coagulation and flocculation Lime-soda and ion exchange softening Reverse osmosis and nanofiltration Sedimentation Granular and membrane filtration Disinfection and fluoridation Removal of specific constituents Drinking water plant residuals management, process selection, and integration Storage and distribution systems Wastewater collection and treatment design considerations Sanitary sewer design Headworks and preliminary treatment Primary treatment Wastewater microbiology Secondary treatment by suspended and attached growth biological processes Secondary settling, disinfection, and postaeration Tertiary treatment Wastewater plant residuals management Clean water plant process selection and integration