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Author: Adam Postawa Publisher: IWA Publishing ISBN: 1780400047 Category : Science Languages : en Pages : 146
Book Description
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.
Author: Elmer O. Sommerfeld Publisher: ISBN: Category : Computers Languages : en Pages : 180
Book Description
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.
Author: H. Catherine W. Skinner Publisher: ISBN: Category : Biogeochemistry Languages : en Pages : 448
Book Description
Iron manganese biomineralization; Iron minerals in surface environments; Manganese minerals in surface environments; Crystal structures of manganese oxide minerals; Microbial biomineralization of iron and manganese; Microbial oxidation of organic matter coupled to the reduction of fe (III) and Mn(IV) oxides; Microbial accumulation of iron and manganese in different aquatic environments: an electron optical study; Magnetotactic bacteria: biomineralization, ecology, sediment magnetism, environmental indicator; Production of iron sulfide minerals by magnetotactic bacteria in sulfidic environments; Manganese oxides producec by fungal oxidation of manganese from siderite and rhodochrosite; Biogenic ferrihydrite: effect of B-thalassemia/ hemoglobin E disease onthe structure of ferrihydrite present in ferritins isolated from iron-loaded human heart and spleen tissue; Manganese nodules and microbial oxidation of manganese in the huntley meadows wetland, Virginia, USA; Iron sulfidization in tidal marsh soils; Mineralogy of precipitates formed by the biogeochemical oxidation of Fe(II) in mine drainage; Natural iron precipitates in a mine retention pond near Jabiru, Northern Territory, Australia; Iron deposits and microorganisms in saline sulfidic soils with altered soil water regimes in South Australia; Transformations of iron, manganese and aluminium during oxidation of a sulfidic material from an acid sulfate soil; Deposition and accumulation of biogenic magnetite in low oxygen facies ...
Author: Institute of Medicine Publisher: National Academies Press ISBN: 0309072905 Category : Medical Languages : en Pages : 798
Book Description
This volume is the newest release in the authoritative series issued by the National Academy of Sciences on dietary reference intakes (DRIs). This series provides recommended intakes, such as Recommended Dietary Allowances (RDAs), for use in planning nutritionally adequate diets for individuals based on age and gender. In addition, a new reference intake, the Tolerable Upper Intake Level (UL), has also been established to assist an individual in knowing how much is "too much" of a nutrient. Based on the Institute of Medicine's review of the scientific literature regarding dietary micronutrients, recommendations have been formulated regarding vitamins A and K, iron, iodine, chromium, copper, manganese, molybdenum, zinc, and other potentially beneficial trace elements such as boron to determine the roles, if any, they play in health. The book also: Reviews selected components of food that may influence the bioavailability of these compounds. Develops estimates of dietary intake of these compounds that are compatible with good nutrition throughout the life span and that may decrease risk of chronic disease where data indicate they play a role. Determines Tolerable Upper Intake levels for each nutrient reviewed where adequate scientific data are available in specific population subgroups. Identifies research needed to improve knowledge of the role of these micronutrients in human health. This book will be important to professionals in nutrition research and education.
Author: Brian J. Knapp Publisher: ISBN: 9781869860240 Category : Chemical elements Languages : en Pages : 56
Book Description
"These are the first chemistry books I have ever understood," said an editor when she saw the Elements series. The titles give the basic chemistry of the most important elements, describing their characteristics, behaviour, occurrence, isolation & uses.
Author: Bruno Langlais Publisher: Routledge ISBN: 1351426141 Category : Juvenile Nonfiction Languages : en Pages : 588
Book Description
With the advent of the Safe Drinking Water Act Amendments of 1986, many water utilities are reexamining their water treatment practices. Upcoming new regulations on disinfection and on disinfection by-products, in particular, are the primary driving forces for the big interest in ozone. It appears that ozone, with its strong disinfection capabilities, and apparently lower levels of disinfection by-products (compared to other disinfectants), may be the oxidant/disinfectant of choice. Many utilities currently using chlorine for oxidation may need to switch due to chlorine by-product concerns. Utilities using chloramines may need to use ozone to meet CT requirements. This book, prepared by 35 international experts, includes current technology on the design, operation, and control of the ozone process within a drinking water plant. It combines almost 100 years of European ozone design and operating experience with North American design/operations experience and the North American regulatory and utility operational environment. Topics covered include ozone chemistry, toxicology, design consideration, engineering aspects, design of retrofit systems, and the operation and economics of ozone technology. The book contains a "how to" section on ozone treatability studies, which explains what information can be learned using treatability studies, at what scale (bench, pilot, or demonstration plant), and how this information can be used to design full-scale systems. It also includes valuable tips regarding important operating practices, as well as guidance on retrofits and the unique issues involved with retrofitting the ozone process. With ozone being one of the hottest areas of interest in drinking water, this book will prove essential to all water utilities, design engineers, regulators, and plant managers and supervisors.
Author: American Water Works Association Publisher: American Water Works Association ISBN: 0898675103 Category : Sequestration (Chemistry) Languages : en Pages : 328
Author: Publisher: ISBN: Category : Groundwater Languages : en Pages : 108
Book Description
Dissolved trace elements, including iron and manganese, are often an important factor in use of ground water for drinking-water supplies. Concentrations of these trace elements can very over several orders of magnitude across local well networks as well as across regions of the United States.
Author: O. Kubaschewski Publisher: Springer Science & Business Media ISBN: 3662080249 Category : Technology & Engineering Languages : en Pages : 194
Book Description
At the official dinner of a· meeting in May 1939, I was seated next to Max Hansen. When I congratulated him on the well deserved success of his "Aufbau der Zweistoff-Legierungen", he smiled: "yes, it was a struggle with the hydra, and so it has taken me seven years", meaning that whenever he had thought to have finished the phase diagram of a particular system, new evidence would turn up like the new heads of the Greek monster. There is no need to point out the importance of assessed phase diagrams to metallurgists or even anyone concerned with the technology and applica tion of metals and alloys. The information contained therein is fundamental to considerations concerning the chemical, physical and mechanical properties of alloys. Hansen's German monograph was followed by a revised English edition in 1958 with K. Anderko and the supplements by R.P. Elliott (1965) and F.A. Shunk (1969). All those who have made use of these volumes will admit that much diligent labour has gone into this work, necessary to cope with the ever increasing number of publications and the consequent improvements.
Author: Adam Postawa
Author: Elmer O. Sommerfeld
Author: H. Catherine W. Skinner
Author: Institute of Medicine
Author: Brian J. Knapp
Author: Bruno Langlais
Author: Brian Knapp
Author: American Water Works Association
Author: 
Author: O. Kubaschewski
Author: Lin Xiao