Manganese Control And Related Issues
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Manganese Control and Related Issues
Author | : Robin J. Casale,Mark W. LeChevallier,Frederick W. Pontius |
Publsiher | : American Water Works Association |
Total Pages | : 222 |
Release | : 2002 |
Genre | : Science |
ISBN | : UOM:39015056218145 |
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This project summarizes current knowledge about manganese chemistry, treatment control strategies, manganese occurrence, distribution system issues, and long- and short-term health effects. The report overviews chemical oxidation, adsorption, biological filtration, and ion exchange techniques for removing manganese from drinking water. In addition to the literature review, a January 2001 workshop was convened to identify future manganese research needs. These research proposals are detailed in a prioritized, multiyear research agenda that describes a series of research projects and funding requirements. An extensive bibliography is provided, but no index. Annotation copyrighted by Book News, Inc., Portland, OR.
Occurrence of Manganese in Drinking Water and Manganese Control
![Occurrence of Manganese in Drinking Water and Manganese Control](https://youbookinc.com/wp-content/themes/mts_schema/cover.jpg)
Author | : Paul Kohl,S. Medlar |
Publsiher | : IWA Publishing |
Total Pages | : 460 |
Release | : 2007-03-31 |
Genre | : Science |
ISBN | : 1843399873 |
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Manganese in drinking water is an aesthetic problem, characterized by so-called "black water", laundry spotting, and similar issues. The control of manganese in a water distribution system relates more to reducing consumer complaints than to protecting health. However, consumers often judge drinking water based on its appearance, odor, and color at the tap even if it is safe to consume. The control of manganese is complicated by its complex chemistry. The objective of this project was first to evaluate the occurrence, chemistry, and treatment methods associated with manganese (Mn) in ground and surface waters. Building upon these findings, a further goal was to study problems associated with manganese in water distribution systems and measure Mn in specific distribution systems. Another objective was to estimate achievable, cost-effective target levels for manganese below the current drinking water advisory standard of 0.05 mg/L. The research team conducted a comprehensive literature review. This review dealt with the regulatory history, health effects, chemistry, and technology associated with Mn. A survey was used to determine the industry’s knowledge base as well as obtaining certain occurrence data. This data was a focused set. Certain utilities participated in distribution system sample analysis. These samples were taken along the length of the distribution system, including the near, middle, and far ends. The concentration of Mn was determined and speciation was conducted via filtration. Case studies were performed to test the limits of certain Mn control technology. Finally, a cost model was proposed to help quantify the cost of increased Mn control as compared to the benefit realized by consumer.
Occurrence of Manganese in Drinking Water and Manganese Control
Author | : Paul M. Kohl,Steven J. Medlar |
Publsiher | : American Water Works Association |
Total Pages | : 460 |
Release | : 2006 |
Genre | : Drinking water |
ISBN | : 9781583215043 |
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This research study describes the chemistry and suggested treatment of manganese in drinking water, with the goals of reducing customer complaints and improving perceived water quality. The problems are aesthetic-water discoloration (usually black or dark red), clothing and fixture staining, turbid water sediments, and, at very high levels, metallic taste.
Best Practice Guide on the Control of Iron and Manganese in Water Supply
Author | : Adam Postawa,Colin Hayes,Alessandra Criscuoli,Francesca Macedonio,Andreas N. Angelakis,Joan B. Rose,Andrew Maier,Drew C. McAvoy |
Publsiher | : IWA Publishing |
Total Pages | : 146 |
Release | : 2013-08-14 |
Genre | : Science |
ISBN | : 9781780400044 |
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This Best Practice Guide on the Control of Iron and Manganese in Water Supply is one of a series produced by the International Water Association’s Specialist Group on Metals and Related Substances in Drinking Water. Iron and manganese are often found in soft upland water sources associated with natural organic matter and are also commonly found in the groundwater abstracted from confined and unconfined aquifers. The presence of iron and manganese in water is one of the most frequent reasons for customers’ complaint due to aesthetic issues (yellow, brown and black or stains on laundry and plumbing fixtures). These two metals can be removed fairly readily by physico-chemical treatment. The municipal treatment systems deployed derive benefit from their larger scale, particularly in relation to control, but the processes used are less suitable for the numerous small supplies that are the most common water supplies throughout Europe, especially in rural areas. One important source of iron in drinking water is from old corroded cast-iron water mains, historically the material used most commonly in supply networks. Replacement and refurbishment is very expensive and the major challenge is how best to prioritize available expenditure. The purpose for this Best Practice Guide on the Control of Iron and Manganese in Water Supply is to give readers the broad view of a problem based on state-of-the-art compilation of the range of scientific, engineering, regulatory and operational issues concerned with the control of iron and manganese in drinking water. The Guide is of interest to water utility practitioners, health agencies and policy makers, as well as students on civil engineering and environmental engineering courses. Authors: Dr Adam Postawa, AGH University of Science and Technology, Faculty of Geology, Geophysics and Environment Protection, Krakow, Poland and Dr Colin R Hayes, University of Swansea, UK, Chair of IWA Specialist Group on Metals and Related Substances in Drinking Water.
Iron and Manganese Removal Handbook
Author | : Elmer O. Sommerfeld |
Publsiher | : Unknown |
Total Pages | : 180 |
Release | : 1999 |
Genre | : Computers |
ISBN | : UOM:39015058104111 |
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The presence of iron and manganese in drinking water are generally not hazardous to health. However, there are few things are more alarming to customers than seeing red water or black water come out of their faucets. This book offers an analysis of current and emerging methods for iron and manganese removal as well as guidance for handling residuals. Using firsthand field experience and detailed case studies, the authors explain the processes to follow.
Iron and Manganese Removal Handbook
Author | : Awwa,John Civardi,Mark Tompeck |
Publsiher | : Unknown |
Total Pages | : 0 |
Release | : 2015 |
Genre | : Business & Economics |
ISBN | : 1583219854 |
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High levels of iron and manganese can cause adverse effects on water at the tap and lead to customer dissatisfaction. This book addresses how to control and treat these contaminants.
Manganese in Health and Disease
Author | : Lucio G Costa,Michael Aschner |
Publsiher | : Royal Society of Chemistry |
Total Pages | : 654 |
Release | : 2014-11-27 |
Genre | : Medical |
ISBN | : 9781782622383 |
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Manganese in the diet is nutritionally essential for normal physiologic functioning. However, excessive exposure to manganese has been associated with developmental, neurodegenerative and other disorders. The book comprehensively covers the toxicology of manganese. Leading investigators provide perspectives from toxicology, neuroscience, nutrition, molecular biology and risk assessment disciplines and chapters cover the toxicokinetics, toxicodynamic interactions and health effects of manganese, as well as its potential role in neurodegenerative diseases. A large section devoted to health effects presents the latest research that associates manganese exposure to potential human diseases. Any scientists, health professional or regulator involved with metal exposure and toxicology should find this volume essential reading. Students and researchers in neurotoxicology will also find this book a useful reference.
Scientific and Technical Assessment Report on Manganese
Author | : National Environmental Research Center (Research Triangle Park, N.C.) |
Publsiher | : Unknown |
Total Pages | : 76 |
Release | : 1975 |
Genre | : Manganese |
ISBN | : UCR:31210012653000 |
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