Removal Of Excess Fluoride From Drinking Water
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Removal Of Excess Fluoride From Drinking Water
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Author : Frederick Rubel
language : en
Publisher:
Release Date : 1978
Removal Of Excess Fluoride From Drinking Water written by Frederick Rubel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Drinking water categories.
Design Manual Removal Of Fluoride From Drinking Water Supplies By Activated Alumina
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Author : Frederick Rubel
language : en
Publisher:
Release Date : 1984
Design Manual Removal Of Fluoride From Drinking Water Supplies By Activated Alumina written by Frederick Rubel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Drinking water categories.
Fluoride In Drinking Water
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Author : John Kirtley Fawell
language : en
Publisher: World Health Organization
Release Date : 2006
Fluoride In Drinking Water written by John Kirtley Fawell and has been published by World Health Organization this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Health & Fitness categories.
Fluoride is known to occur at elevated concentration in a number of parts of the world, where it can be a significant cause of disease. The primary focus of this book is the prevention of adverse health effects from excessive levels of fluoride in drinking water. The book fills the urgent need, identified for updating the WHO Guidelines for Drinking-water Quality, for information on the occurrence of fluoride, its health effects, ways of reducing excess levels, and methods for analysis of fluoride in water. The draft document, produced by a working group of experts convened to consider protection from fluoride and its control, was issued for extensive review and consultation. The resultant book, which incorporates the comments received, was further peer reviewed by experts in developed and developing countries. It is aimed at a wide range of individuals, including health workers and sanitary engineers who may require a broad introduction to the subject with more detailed guidance in some specific areas. Fluoride in Drinking-waterwill be an invaluable reference source for all those concerned with the management of drinking water containing fluoride and the health effects arising from its consumption, including water sector managers and practitioners, as well as health sector staff at policy and implementation levels. It will also be of interest to researchers, students, development workers, and consultants.
Epa 570 9
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Author :
language : en
Publisher:
Release Date : 1978
Epa 570 9 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with categories.
Surface Modified Carbons As Scavengers For Fluoride From Water
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Author : Venkataraman Sivasankar
language : en
Publisher: Springer
Release Date : 2016-08-19
Surface Modified Carbons As Scavengers For Fluoride From Water written by Venkataraman Sivasankar and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-19 with Technology & Engineering categories.
This book discusses the problems and feasible remediation of fluoride contamination in groundwater. The book investigates applications of various carbons derived from bio-mass and bio-polymers. It also inquires into surface modified carbons that use inorganic ions to help remove excess fluoride ions in drinking water and wastewater effluents. The compliance of kinetic and isotherm models with fluoride sorption is covered, and the suggested mechanisms of defluoridation by surface modified carbon materials is described.
Fluoride In Drinking Water
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Author : A.K. Gupta
language : en
Publisher: CRC Press
Release Date : 2016-04-05
Fluoride In Drinking Water written by A.K. Gupta and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-05 with Science categories.
Explore the Health Effects of Fluoride Pollution Fluoride in Drinking Water: Status, Issues, and Solutions establishes the negative impacts of naturally occurring fluoride on human health and considers the depth and scope of fluoride pollution on an international scale. The book discusses current global water quality and fluoride-related issues and draws overall awareness to the problems associated with fluoride in drinking water. Utilizing recent scientific studies to examine the current status of fluoride pollution, it provides a fundamental understanding of fluorosis, describes health problems associated with fluorosis, and discusses viable scientific solutions. The book places special emphasis on India, Africa, China, and other countries deeply affected by fluoride pollution. A single, comprehensive source covering health issues related to fluoride and its effect on humans, this book: Compiles information from scientific literature on the state of fluoride pollution Characterizes the human impacts of fluorosis Provides a comparative evaluation of technologies used for defluoridation Gives a comprehensive account of human health effects with appropriate scientific descriptions and photographs Includes detailed descriptions on the geochemistry of fluoride entry into groundwater aquifers Presents a case study that deals with the successful removal of fluoride from drinking water A vital resource for environmental and public health officials as well as academic researchers in the area, Fluoride in Drinking Water: Status, Issues, and Solutions covers human health issues associated with fluoride-rich water and describes relevant techniques for defluoridation that can be used to overcome the stress, issues, and challenges of natural fluoride in drinking water.
Advanced Treatment Technologies For Fluoride Removal In Water
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Author : Akhilesh Kumar Yadav
language : en
Publisher: Springer Nature
Release Date : 2024-01-01
Advanced Treatment Technologies For Fluoride Removal In Water written by Akhilesh Kumar Yadav and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-01-01 with Science categories.
This book presents an overview of the techniques available today for the removal of fluoride contamination/pollutants/species from water. Also covered are traditionally applied techniques for the removal of fluoride pollutants/species, including oxidation, coagulation-flocculation, and membrane techniques. Recently, progress has been made on the utility of various nanoparticles for the extraction of contaminants from water. Fluoride contamination is affecting water resources quality worldwide as a result of human activities, such as mining and pesticide use. Due to the high risk of fluoride exposure, specific water treatment processes are required to meet more severe water quality standards. A better understanding of currently available processes is necessary to develop economical, efficient, and effective methods for fluoride removal. Fluoride can either be coated, adsorbed using a wide range of both mineral and organic constituents or can be directly rejected by membrane processes, such as reverse osmosis and nanofiltration. Recent developments of submerged hybrid membrane systems, such as membrane bioreactors in wastewater treatment, provide alternative technologies for fluoride treatment.
Fluoride Removal From Groundwater By Adsorption Technology
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Author : Abdulai Salifu
language : en
Publisher: CRC Press
Release Date : 2017-11-13
Fluoride Removal From Groundwater By Adsorption Technology written by Abdulai Salifu and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-13 with Science categories.
In the Eastern corridor of Northern region of Ghana, presence of high fluoride concentration in the groundwater has made many drilled boreholes unusable for drinking. Little is, however, known about the factors contributing to the occurrence of high fluoride in this part of Ghana and it’s spatial distribution. Treatment of the fluoride-contaminated groundwater by adsorption is also hampered by the lack of suitable adsorbents that are locally available. Based on principal component analysis, and saturation indices calculations, this thesis highlights that, the predominant mechanisms controlling the fluoride enrichment probably include calcite precipitation and Na/Ca exchange processes, both of which deplete Ca from the groundwater, and promote the dissolution of fluorite. The mechanisms also include F-/OH- anion exchange processes, as well as evapotranspiration processes which concentrate the fluoride ions, hence increasing its concentration in the groundwater. Spatial mapping showed that the high fluoride groundwaters occur predominantly in the Saboba, Cheriponi and Yendi districts. The thesis further highlights that, modifying the surface of indigenous materials by an aluminium coating process, is a very promising approach to develop a suitable fluoride adsorbent. Aluminum oxide coated media reduced fluoride in water from 5. 0 ± 0.2 mg/L to ≤ 1.5 mg/L (which is the WHO health based guideline for fluoride), in both batch and continuous flow column experiments in the laboratory. Kinetic and isotherm studies, thermodynamic calculations, as well as analytical results from Fourier Transform Infrared Spectroscopy and Raman spectroscopy, suggest the mechanism of fluoride adsorption onto aluminium oxide coated media involved both physisorption and chemisorption processes. Field testing in a fluoritic community in Northern Ghana showed that the adsorbent is also capable of treating fluoride-contaminated groundwater in field conditions, suggesting it is a promising defluoridation adsorbent. The adsorbent also showed good regenerability potential that would allow re-use, which could make it practically and economically viable. Additional research is, however, required to further increase the fluoride adsorption capacity of developed adsorbent.
Green Technologies For The Defluoridation Of Water
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Author : Mohammad Hadi Dehghani
language : en
Publisher: Elsevier
Release Date : 2021-07-17
Green Technologies For The Defluoridation Of Water written by Mohammad Hadi Dehghani and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-07-17 with Science categories.
Green Technologies for the Defluoridation of Water focuses on the application of green technologies for the defluoridation of water using adsorption processes and nanoadsorbents. Chapters cover the environmental and health effects of fluoride presence in ambient air, food, water, soil and vegetation, focus on approaches for analytical methods to determine the presence of fluoride in water, review various types of conventional and advanced techniques used for removal, focus on adsorption as a green technology, review various types of adsorbents, and emphasize a techno-economic assessment with respect to conventional and non-conventional technologies. This book provides readers with comprehensive methods and applications, while also presenting the global impacts of fluoride ion on the environment, including in drinking water, food, air, soil and vegetables. The authors compare different defluoridation technologies in detail, providing researchers in environmental science and nanotechnology fields with the information they need to create solutions on how to safely remove fluoride from water in a sustainable and cost-effective way. Presents the application of green technology for the defluoridation of water using adsorption processes and nanoadsorbents Includes methods for effectively removing fluoride ions from potable water and water bodies Provides techniques that are eco-friendly, without toxic chemicals, and with lower cost options
The Environmental Chemistry Of Aluminum
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Author : Garrison Sposito
language : en
Publisher: CRC Press
Release Date : 2020-04-08
The Environmental Chemistry Of Aluminum written by Garrison Sposito and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-08 with Science categories.
The Environmental Chemistry of Aluminum provides a comprehensive, fundamental account of the aqueous chemistry of aluminum within an environmental context. An excellent reference for environmental chemists and scientific administrators of environmental programs, this book contains material reflecting the many recent changes in this rapidly developing discipline. The first three chapters discuss the most fundamental aspects of aluminum chemistry: its quantitation in soils and natural waters, including speciation measurements, and its stable chemical forms, both as a dissolved solute and in a solid phase. These chapters emphasize both critical assessments of and definitive recommendations for laboratory methodologies and measured thermodynamic properties relating to aluminum chemistry. The next four chapters in The Environmental Chemistry of Aluminum build on this foundation to provide details of the polymeric chemistry of aluminum: its polynuclear and colloidal hydrolytic species in aqueous solution, its complexes with natural organic ligands, including humic substances, and its role as an adsorptive and adsorbent in surface reactions. These chapters are grounded in experimental results rather than conceptual modeling. The final three chapters describe the chemistry of aluminum in soils, waters, and watersheds. These chapters illustrate the problems of spatial and temporal variability, metastability, and scale that continue to make aluminum geochemistry one of the great challenges in modern environmental science.