Characterizing Microbial Water Quality in Reclaimed Water Distribution Systems PDF Download
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Author: R. Narasimhan
Publisher: IWA Publishing
ISBN: 9781843399452
Category : Science
Languages : en
Pages : 316
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Book Description
Historically, reclaimed water systems met water quality and public health related standards at the end of the treatment facility prior to entering the distribution system. However, water quality within the reclaimed water distribution system can significantly change and affect end uses due to changes in levels of color, odor, and biofilm growth. Operations staff need guidance to help them optimize the reclaimed water quality in the distribution system throughout the year. The objectives of this project were to: characterize the nature and extent of water quality deterioration in reclaimed water distribution systems, including microbial fouling, regrowth, impact to the end user, and impact on reuse and other related regulations; identify pertinent water quality issues in relationship to degradation as it is conveyed to reuse customers; develop general guidance for use by reclaimed water utilities in identifying and assessing problems; and provide options for controlling regrowth including regulating detention time, flushing, and optimization of disinfectants. The final report includes a summary of state reclaimed water regulations and federal guidelines, and other related regulations. The research team put together a final report that provides general guidance for use by reclaimed water utilities in assessing and solving potential problems. Guidance for operation, monitoring, and maintenance of reclaimed water systems to improve quality for end users. Biofilm control methods such as pipeline flushing, shock chlorination, and intermittent use of chloramine disinfectant are discussed. The research also addresses methods for identifying microbially induced corrosion issues and methods to optimize operations through the use of monitoring and modeling activities. Disinfectant residual criteria for reclaimed water systems are presented to assist system operators.
Author: R. Narasimhan
Publisher: IWA Publishing
ISBN: 9781843399452
Category : Science
Languages : en
Pages : 316
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Book Description
Historically, reclaimed water systems met water quality and public health related standards at the end of the treatment facility prior to entering the distribution system. However, water quality within the reclaimed water distribution system can significantly change and affect end uses due to changes in levels of color, odor, and biofilm growth. Operations staff need guidance to help them optimize the reclaimed water quality in the distribution system throughout the year. The objectives of this project were to: characterize the nature and extent of water quality deterioration in reclaimed water distribution systems, including microbial fouling, regrowth, impact to the end user, and impact on reuse and other related regulations; identify pertinent water quality issues in relationship to degradation as it is conveyed to reuse customers; develop general guidance for use by reclaimed water utilities in identifying and assessing problems; and provide options for controlling regrowth including regulating detention time, flushing, and optimization of disinfectants. The final report includes a summary of state reclaimed water regulations and federal guidelines, and other related regulations. The research team put together a final report that provides general guidance for use by reclaimed water utilities in assessing and solving potential problems. Guidance for operation, monitoring, and maintenance of reclaimed water systems to improve quality for end users. Biofilm control methods such as pipeline flushing, shock chlorination, and intermittent use of chloramine disinfectant are discussed. The research also addresses methods for identifying microbially induced corrosion issues and methods to optimize operations through the use of monitoring and modeling activities. Disinfectant residual criteria for reclaimed water systems are presented to assist system operators.
Author: Ken Thompson
Publisher: American Water Works Association
ISBN: 1583214402
Category : Salinity
Languages : en
Pages : 662
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Book Description
The problem of salinity in reclaimed water is growing as more utilities choose to use reclaimed water for irrigation and other purposes. This project is the first comprehensive look at this problem on a national level. The project conducted literature reviews on the sources of salinity to municipal wastewater and on constraints to using reclaimed water, conducted two surveys of utilities that reclaim water, and summarized regulations regarding reclaimed water. Salt balances were developed for sewersheds in five case study utilities integrating extensive field sampling, a household survey, and a newly developed model, Water Quality (WQ) Analyst. Finally, the net annualized cost of potential salinity mitigation practices was determined using an economics model. CD included with full Appendices.
Author: Edwin E. Geldreich
Publisher: CRC Press
ISBN: 1000157555
Category : Technology & Engineering
Languages : en
Pages : 516
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Book Description
Hidden problems, buried deep in the pipe networks of water distribution systems, are very serious potential threats to water quality. Microbial Quality of Water Supply in Distribution Systems outlines the processes and issues related to the degradation of water quality upon passage through networks of pipes, storage reservoirs, and standpipes on its way to the consumer. The risks associated with biofilm accumulation, bacteria, and other contaminants are discussed in great detail. In addition to its excellent microbiological coverage of organisms in drinking water and biofilms in distribution systems, Microbial Quality of Water Supply in Distribution Systems provides clear treatments of the technical and public communication issues most commonly affecting the quality of water and water supply systems. The inclusion of numerous case histories in this new book makes it a complete reference source for anyone concerned with water quality and water distribution systems.
Author: Sharon Waller
Publisher:
ISBN: 9781941242162
Category :
Languages : en
Pages : 151
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Book Description
Author:
Publisher:
ISBN:
Category : Water quality management
Languages : en
Pages : 484
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309224624
Category : Science
Languages : en
Pages : 276
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Book Description
Expanding water reuse-the use of treated wastewater for beneficial purposes including irrigation, industrial uses, and drinking water augmentation-could significantly increase the nation's total available water resources. Water Reuse presents a portfolio of treatment options available to mitigate water quality issues in reclaimed water along with new analysis suggesting that the risk of exposure to certain microbial and chemical contaminants from drinking reclaimed water does not appear to be any higher than the risk experienced in at least some current drinking water treatment systems, and may be orders of magnitude lower. This report recommends adjustments to the federal regulatory framework that could enhance public health protection for both planned and unplanned (or de facto) reuse and increase public confidence in water reuse.
Author:
Publisher:
ISBN:
Category : Sewage
Languages : en
Pages : 956
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Book Description
Author: F. Sotywambe
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author:
Publisher: DIANE Publishing
ISBN: 1428984321
Category :
Languages : en
Pages : 80
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Book Description
Author: United States. Congress. House. Committee on Resources. Subcommittee on Water and Power
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 76
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Book Description
