Occurrence Of Manganese In Drinking Water And Manganese Control
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Author : Paul M. Kohl,Steven J. Medlar Publisher : American Water Works Association Page : 460 pages File Size : 47,8 Mb Release : 2006 Category : Drinking water ISBN : 9781583215043
Occurrence of Manganese in Drinking Water and Manganese Control by Paul M. Kohl,Steven J. Medlar Pdf
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.
Occurrence of Manganese in Drinking Water and Manganese Control by Paul Kohl,S. Medlar Pdf
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.
Robin J. Casale,Mark W. LeChevallier,Frederick W. Pontius
Author : Robin J. Casale,Mark W. LeChevallier,Frederick W. Pontius Publisher : American Water Works Association Page : 222 pages File Size : 52,9 Mb Release : 2002 Category : Science ISBN : UOM:39015056218145
Manganese Control and Related Issues by Robin J. Casale,Mark W. LeChevallier,Frederick W. Pontius Pdf
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.
Best Practice Guide on the Control of Iron and Manganese in Water Supply by Adam Postawa,Colin Hayes,Alessandra Criscuoli,Francesca Macedonio,Andreas N. Angelakis,Joan B. Rose,Andrew Maier,Drew C. McAvoy Pdf
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.
Control Of Iron and Manganese in Drinking Water by Diego Ronaldinho Pdf
Pre-engineered water treatment plants are becoming available and being used for production of potable water at public water systems. Many applications being proposed are for small systems having relatively clean surface water sources which are now being required to provide filtration under the federal Safe Drinking Water Act. This book looks at the control of iron and manganese in drinking water.
Riverbank Filtration for Water Security in Desert Countries by Chittaranjan Ray,Mohamed Shamrukh Pdf
Riverbank filtration is a low cost, yet efficient water treatment technology. It has most potential to provide safe drinking water to large cities located along rivers or lakes. In particular, it is ideal for large population centres in developing countries, where the cost of building extensive treatment facilities is prohibitive. Water filtration can be successfully implemented using naturally occurring sand and gravel along the river/lake banks. The cost of water produced by this means is much lower than that of water treated in conventional treatment plants. Authored by a multi-disciplinary team of experts, this volume addresses the scientific basis of the filtration process, and also numerous topics of importance for the planning, technical realization, and security of such plants. Their application for the removal of relevant chemical pollutants and a variety of pathogens is analysed in detail.
ICSBE 2018 by Ranjith Dissanayake,Priyan Mendis Pdf
This book highlights current research and development in the area of sustainable built environments, currently one of the most important disciplines in civil engineering. It covers a range of topics, including sustainable construction and infrastructures, waste and wastewater management, enhanced sustainability, renewable and clean energy, sustainable materials and industrial ecology, building automation and virtual reality, and impact of climate change. As such it provides vital insights into responsible urbanization practices, and new tools and technologies in civil engineering that can mitigate the negative effects of the built environment.
Manganese and Its Compounds by Mildred Williams-Johnson,World Health Organization Pdf
A concise assessment of the risks to human health posed by exposure to manganese and its compounds. Manganese is an essential element found in rock, soil, water, and food. While food is the most important source of exposure for the general population, significant exposure can also occur via the consumption of contaminated drinking water. Anthropogenic sources of exposure arise from the use of manganese ore in the production of steel and dry cell batteries, in pesticides, and in the ceramics and glass manufacturing industries. Workers in these settings may be exposed to higher levels via inhalation of manganese dusts. Other groups at risk of higher exposures include infants given prepared infant foods and formulas, and people living in the vicinity of ferro-manganese or iron and steel manufacturing facilities, coal-fired power plants, or hazardous waste sites.
Handbook of Environmental Degradation of Materials by Myer Kutz Pdf
The Handbook of Environmental Degradation of Materials, Third Edition, explains how to measure, analyze and control environmental degradation for a wide range of industrial materials, including metals, polymers, ceramics, concrete, wood and textiles exposed to environmental factors, such as weather, seawater, and fire. This updated edition divides the material into four new sections, Analysis and Testing, Types of Degradation, Protective Measures and Surface Engineering, then concluding with Case Studies. New chapters include topics on Hydrogen Permeation and Hydrogen Induced Cracking, Weathering of Plastics, the Environmental Degradation of Ceramics and Advanced Materials, Antimicrobial Layers, Coatings, and the Corrosion of Pipes in Drinking Water Systems. Expert contributors to this book provide a wealth of insider knowledge and engineering expertise that complements their explanations and advice. Case Studies from areas such as pipelines, tankers, packaging and chemical processing equipment ensure that the reader understands the practical measures that can be put in place to save money, lives and the environment. Introduces the reader to the effects of environmental degradation on a wide range of materials, including metals, plastics, concrete, wood and textiles Describes the kind of degradation that effects each material and how best to protect it Includes case studies that show how organizations, from small consulting firms, to corporate giants design and manufacture products that are more resistant to environmental effects
Chemical Analysis and Material Characterization by Spectrophotometry by Bhim Prasad Kaflé Pdf
Chemical Analysis and Material Characterization by Spectrophotometry integrates and presents the latest known information and examples from the most up-to-date literature on the use of this method for chemical analysis or materials characterization. Accessible to various levels of expertise, everyone from students, to practicing analytical and industrial chemists, the book covers both the fundamentals of spectrophotometry and instrumental procedures for quantitative analysis with spectrophotometric techniques. It contains a wealth of examples and focuses on the latest research, such as the investigation of optical properties of nanomaterials and thin solid films. Covers the basic analytical theory that is essential for understanding spectrophotometry Emphasizes minor/trace chemical component analysis Includes the spectrophotometric analysis of nanomaterials and thin solid films Thoroughly describes methods and uses easy-to-follow, practical examples and experiments
Iron and Manganese Removal Handbook by Awwa,John Civardi,Mark Tompeck Pdf
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.
Author : Paul M. Kohl,David Dixon Publisher : American Water Works Association Page : 192 pages File Size : 47,9 Mb Release : 2012 Category : Water ISBN : 1605731730
