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Author : Pierre Payment
Publisher :
ISBN 13 :
Total Pages : 17 pages
Book Rating : 4.:/5 (31 download)
Download or read book Virus Removal by Drinking Water Treatment Processes written by Pierre Payment and published by . This book was released on 1989 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : LeChevallier M.W.
Publisher : World Health Organization
ISBN 13 : 9241562552
Total Pages : 136 pages
Book Rating : 4.2/5 (415 download)
Download or read book Water Treatment and Pathogen Control written by LeChevallier M.W. and published by World Health Organization. This book was released on 2004-09-24 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation This publication provides a critical analysis of the literature on removal and inactivation of pathogenic microbes in water to aid the water quality specialist and design engineer in making decisions regarding microbial water quality.
Author : Wim A. M. Hijnen
Publisher : IWA Publishing
ISBN 13 : 1843393735
Total Pages : 113 pages
Book Rating : 4.8/5 (433 download)
Download or read book Elimination of Micro-organisms by Water Treatment Processes written by Wim A. M. Hijnen and published by IWA Publishing. This book was released on 2010-05-14 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: Special Offer: KWR Drinking Water Treatment Set - Buy all five books together and save a total £119! The overall aim of Elimination of Micro-organisms by Water Treatment Processes is to present default values for the micro-organisms elimination or inactivation credit of universally used processes in water treatment (MEC or MIC). The growing interest in Quantitative Microbial Risk assessment (QMRA) for safe drinking water requires such data. These MEC or MIC values have been calculated from research on elimination of viruses, bacteria and bacterial spores and protozoa (oo)cysts (Cryptosporidium and Giardia) by these treatment processes published in the international literature. The data have been selected on the base of different quality criteria related to information on applied experimental conditions and used methods. Furthermore the studies have been categorized on base of their similarities with ‘real world’ conditions (selected micro-organisms, scale and conditions of the tested processes). The international literature data revealed a high variation in elimination. The major parameters and process control parameters affecting elimination are described. This new edition describes the state-of-the-art progress in research on conventional treatment, coagulation and flocculation, rapid granular filtration, slow sand filtration and UV disinfection. Visit the IWA WaterWiki to read and share material related to this title: http://www.iwawaterwiki.org/xwiki/bin/view/Articles/WaterbornePathogens
Author : Charles P. Gerba
Publisher :
ISBN 13 :
Total Pages : 53 pages
Book Rating : 4.:/5 (169 download)
Download or read book Virus Removal During Conventional Drinking Water Treatment written by Charles P. Gerba and published by . This book was released on 1985 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hongde Zhou
Publisher :
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4.:/5 (319 download)
Download or read book A Review of Literature on the Removal of Microbial Contaminants from Drinking Water written by Hongde Zhou and published by . This book was released on 1996 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report reviews the various water treatment technologies available to remove micro-organisms from raw water supplies. Discussions of each technology includes a process overview, performance information, design considerations, operating and maintenance aspects, and notes on costs and status of technology development. In addition, the impacts of important micro-organisms and relevant regulations are examined to highlight the significance and requirements of removing micro-organisms from water treatment processes. Specific consideration is made regarding those technologies suitable for small community systems located in the Northern River Basins Study area. Types of technologies examined include pre-filtration processes such as coagulation and sedimentation, filtration, and disinfection. Three types of package plants (conventional, tube-type clarification, and adsorption clarifier) suitable for small communities are also reviewed.
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309064325
Total Pages : 277 pages
Book Rating : 4.3/5 (9 download)
Download or read book Identifying Future Drinking Water Contaminants written by National Research Council and published by National Academies Press. This book was released on 1999-09-30 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: With an increasing population, use of new and diverse chemicals that can enter the water supply, and emergence of new microbial pathogens, the U.S. federal government is faced with a regulatory dilemma: Where should it focus its attention and limited resources to ensure safe drinking water supplies for the future? Identifying Future Drinking Water Contaminants is based on a 1998 workshop on emerging drinking water contaminants. It includes a dozen papers that were presented on new and emerging microbiological and chemical drinking water contaminants, associated analytical and water treatment methods for their detection and removal, and existing and proposed environmental databases to assist in their proactive identification and regulation. The papers are preceded by a conceptual approach and related recommendations to EPA for the periodic creation of future Drinking Water Contaminant Candidate Lists (CCLsâ€"produced every five yearsâ€"include currently unregulated chemical and microbiological substances that are known or anticipated to occur in public water systems and that may pose health risks).
Author : David J. Hiltebrand
Publisher :
ISBN 13 :
Total Pages : 672 pages
Book Rating : 4.0/5 ( download)
Download or read book Guidance Manual for Compliance with the Filtration and Disinfection Requirements for Public Water Systems Using Surface Water Sources written by David J. Hiltebrand and published by . This book was released on 1991 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual suggests design operating and performance criteria for specific surface water quality conditions to provide the optimum protection from microbiological contaminants.
Author : Liping Zhang
Publisher : ProQuest
ISBN 13 : 9780549791706
Total Pages : pages
Book Rating : 4.7/5 (917 download)
Download or read book Removal and Inactivation of Waterborne Viruses Using Zerovalent Iron written by Liping Zhang and published by ProQuest. This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Waterborne viruses are of great concern regarding drinking water safety because they are not always effectively removed by water treatment processes such as filtration and chlorination. Iron (oxyhydr)oxides are known to remove viruses from water, which suggests the potential of using zerovalent iron (ZVI) as a precursor of iron oxides to remove waterborne viruses. In this study, the mechanisms for virus removal and inactivation by ZVI and effect of dissolved organic matter (DOM) on the removal of viruses by ZVI were investigated through batch and column experiments using two bacteriophages, [straight phi]X174 and MS2, as model viruses. Batch experimental results indicated that removal of viruses from water by ZVI under anaerobic conditions was achieved through interactions of viruses with iron corrosion products, including aqueous Fe(II) and magnetite. Aqueous Fe(II) inactivated [straight phi]X174 but had no effect on MS2. Magnetite removed both viruses, where the removal of MS2 was mainly via reversible sorption, and for [straight phi]X174 the removal was due to both inactivation (or irreversible sorption) and reversible sorption. Column experimental results showed that DOM decreased virus removal by ZVI and that this effect was much more significant at 2.41 ppm dissolved organic carbon (DOC) compared to 0.34 ppm DOC. Competitive adsorption of DOM for the same adsorbing sites of iron corrosion products and DOM-facilitated virus transport are likely mechanisms responsible for the decreased virus removal observed in this study. Results from this study suggest that removal and inactivation of viruses by ZVI occur through multiple mechanisms involving different iron species, such as Fe(II) and magnetite. Different viruses may ix interact with iron species differently and hence are susceptible to inactivation to different extents. When ZVI is applied as a medium to treat viruses in water, pretreatment of DOM needs to be conducted to minimize its adverse effect on virus removal efficiency of ZVI.
Author : Gordon G. Robeck
Publisher :
ISBN 13 :
Total Pages : 74 pages
Book Rating : 4.:/5 (896 download)
Download or read book Effectiveness of Water Treatment Processes in Virus Removal written by Gordon G. Robeck and published by . This book was released on 1962 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John Bratby
Publisher : IWA Publishing
ISBN 13 : 1843391066
Total Pages : 421 pages
Book Rating : 4.8/5 (433 download)
Download or read book Coagulation and Flocculation in Water and Wastewater Treatment written by John Bratby and published by IWA Publishing. This book was released on 2006-10-15 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coagulation and Flocculation in Water and Wastewater Treatment provides a comprehensive account of coagulation and flocculation techniques and technologies in a single volume covering theoretical principles to practical applications. Thoroughly revised and updated since the 1st Edition it has been progressively modified and increased in scope to cater for the requirements of practitioners involved with water and wastewater treatment. A thorough gamut of treatment scenarios is attempted, including turbidity, color and organics removal, including the technical aspects of enhanced coagulation. The effects of temperature and ionic content are described as well as the removal of specific substances such as arsenic and phosphorus. Chemical phosphorus removal is dealt with in detail, Rapid mixing for efficient coagulant utilization, and flocculation are dealt with in specific chapters. Water treatment plant waste sludge disposal is dealt with in considerable detail, in an Appendix devoted to this subject. Invaluble for water scientists, engineers and students of this field, Coagulation and Flocculation in Water and Wastewater Treatment is a convenient reference handbook in the form of numerous examples and appended information.
Author : Gordon A. McFeters
Publisher : Springer Science & Business Media
ISBN 13 : 1461244641
Total Pages : 508 pages
Book Rating : 4.4/5 (612 download)
Download or read book Drinking Water Microbiology written by Gordon A. McFeters and published by Springer Science & Business Media. This book was released on 2013-03-07 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: The microbiology of drinking water remains an important worldwide concern despite modem progress in science and engineering. Countries that are more technologically advanced have experienced a significant reduction in water borne morbidity within the last 100 years: This reduction has been achieved through the application of effective technologies for the treatment, disinfec tion, and distribution of potable water. However, morbidity resulting from the ingestion of contaminated water persists globally, and the available ep idemiological evidence (Waterborne Diseases in the United States, G. F. Craun, ed. , 1986, CRC Press) demonstrates a dramatic increase in the number of waterborne outbreaks and individual cases within the United States since the mid-1960s. In addition, it should also be noted that the incidence of water borne outbreaks of unknown etiology and those caused by "new" pathogens, such as Campylobaeter sp. , is also increasing in the United States. Although it might be debated whether these increases are real or an artifact resulting from more efficient reporting, it is clear that waterborne morbidity cannot be ignored in the industrialized world. More significantly, it represents one of the most important causes of illness within developing countries. Approxi mately one-half the world's population experiences diseases that are the direct consequence of drinking polluted water. Such illnesses are the primary cause of infant mortality in many Third World countries.
Author : Jyoti Kishen Kumar
Publisher : CRC Press
ISBN 13 : 1439877408
Total Pages : 273 pages
Book Rating : 4.4/5 (398 download)
Download or read book Drinking Water Disinfection Techniques written by Jyoti Kishen Kumar and published by CRC Press. This book was released on 2012-12-13 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water is our natural heritage, our miracle of life. However, our increasingly technological society has become indifferent to water. Far from being pure, modern drinking water around the world contains many undesirable chemical and bacterial contaminants. The existing techniques employed for the disinfection of water are either energy-intensive or have by-products harmful to human health. Drinking Water Disinfection Techniques reviews these processes and explores novel technologies for water disinfection synergistic with existing techniques. The book covers a wide audience and gives a comprehensive review of various physical, chemical, and hybrid techniques commonly used for the disinfection of water as well as newer emerging technologies in terms of their mode of action, scale of operation, efficacy, merits, and demerits. It broadly addresses the issues related to water disinfection in three sections: Disinfection techniques—chemical, physical, and hybrid (combination)—and their likely scale of operation efficacy Disinfection by-product as a function of water source and the type of treatment Emerging and novel techniques, including new work on cavitation, an economical, energy-efficient, and simple alternative to the conventional methods of disinfection Drinking Water Disinfection Techniques effectively combines the chemical, physical, biological, and engineering principles of water disinfection in one text. Discussing both conventional and novel techniques used for disinfection and the economics involved, the book gives a comprehensive review of various physical, chemical, and hybrid techniques used for disinfection to create potable water.
Author : Michael Dennis Guy
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (127 download)
Download or read book The Removal of Viruses by Water Treatment Processes written by Michael Dennis Guy and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Andrew J. Harris
Publisher :
ISBN 13 :
Total Pages : 238 pages
Book Rating : 4.:/5 (89 download)
Download or read book Removal of Emerging Waterborne Viral Pathogens by Conventional and Innovative Water Treatment Processes written by Andrew J. Harris and published by . This book was released on 1999 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309051428
Total Pages : 300 pages
Book Rating : 4.3/5 (9 download)
Download or read book Ground Water Recharge Using Waters of Impaired Quality written by National Research Council and published by National Academies Press. This book was released on 1994-02-01 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: As demand for water increases, water managers and planners will need to look widely for ways to improve water management and augment water supplies. This book concludes that artificial recharge can be one option in an integrated strategy to optimize total water resource management and that in some cases impaired-quality water can be used effectively as a source for artificial recharge of ground water aquifers. Source water quality characteristics, pretreatment and recharge technologies, transformations during transport through the soil and aquifer, public health issues, economic feasibility, and legal and institutional considerations are addressed. The book evaluates three main types of impaired quality water sourcesâ€"treated municipal wastewater, stormwater runoff, and irrigation return flowâ€"and describes which is the most consistent in terms of quality and quantity. Also included are descriptions of seven recharge projects.
Author :
Publisher :
ISBN 13 :
Total Pages : 196 pages
Book Rating : 4.3/5 (121 download)
Download or read book Disinfection Profiling and Benchmarking Guidance Manual written by and published by . This book was released on 1999 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309224624
Total Pages : 276 pages
Book Rating : 4.3/5 (92 download)
Download or read book Water Reuse written by National Research Council and published by National Academies Press. This book was released on 2012-07-17 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
