The Equilibrium Fluoride Capacity of Activated Alumina

The Equilibrium Fluoride Capacity of Activated Alumina PDF Author: Gurinderjit Singh
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 8

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The Equilibrium Fluoride Capacity of Activated Alumina

The Equilibrium Fluoride Capacity of Activated Alumina PDF Author: Gurinderjit Singh
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 8

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The Equilibrium Fluoride Capacity of Activated Alumina

The Equilibrium Fluoride Capacity of Activated Alumina PDF Author: Gurinderjit Singh
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 72

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Fluoride Removal from Groundwater by Adsorption Technology

Fluoride Removal from Groundwater by Adsorption Technology PDF Author: Abdulai Salifu
Publisher: CRC Press
ISBN: 9781138373204
Category :
Languages : en
Pages : 276

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Book Description
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.

Masters Theses in the Pure and Applied Sciences

Masters Theses in the Pure and Applied Sciences PDF Author: W. H. Shafer
Publisher: Springer Science & Business Media
ISBN: 1468442295
Category : Science
Languages : en
Pages : 311

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Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing. house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 25 (thesis year 1980) a total of 10,308 theses titles from 27 Canadian and 214 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. While Volume 25 reports theses submitted in 1980, on occasion, certain universities do report theses submitted in previous years but not reported at the time.

Fluoride in Drinking-water

Fluoride in Drinking-water PDF Author: John Kirtley Fawell
Publisher: World Health Organization
ISBN: 9241563192
Category : Health & Fitness
Languages : en
Pages : 145

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Book Description
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.

Book on Ion Exchange, Adsorption and Solvent Extraction

Book on Ion Exchange, Adsorption and Solvent Extraction PDF Author: Mu Naushad
Publisher: Nova Science Publishers
ISBN: 9781624178870
Category : Adsorption
Languages : en
Pages : 0

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Book Description
Water is a vital element for life. Each recognised form of life on earth, from the smallest microbes to the largest mammals, rely on water. But the amount of fresh water on the earth is limited. Due to industrialization, urbanization, and rapid growth of population; even this small amount of fresh water is compromised. This comprehensive book covers 14 review chapters on todays rapidly growing areas of ion exchange, adsorption and solvent extraction and provides an important resource for scientists, and researchers in the fields of environmental science, chemistry, nanotechnology, material science and engineering.

Handbook of Clay Science

Handbook of Clay Science PDF Author:
Publisher: Newnes
ISBN: 0080993710
Category : Science
Languages : en
Pages : 1748

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Book Description
The first edition of the Handbook of Clay Science published in 2006 assembled the scattered literature on the varied and diverse aspects that make up the discipline of clay science. The topics covered range from the fundamental structures (including textures) and properties of clays and clay minerals, through their environmental, health and industrial applications, to their analysis and characterization by modern instrumental techniques. Also included are the clay-microbe interaction, layered double hydroxides, zeolites, cement hydrates, and genesis of clay minerals as well as the history and teaching of clay science. The 2e adds new information from the intervening 6 years and adds some important subjects to make this the most comprehensive and wide-ranging coverage of clay science in one source in the English language. - Provides up-to-date, comprehensive information in a single source - Covers applications of clays, as well as the instrumental analytical techniques - Provides a truly multidisciplinary approach to clay science

Advances in Water Purification Techniques

Advances in Water Purification Techniques PDF Author: Satinder Ahuja
Publisher: Elsevier
ISBN: 0128147911
Category : Technology & Engineering
Languages : en
Pages : 442

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Book Description
Advances in Water Purification Techniques: Meeting the Needs of Developed and Developing Countries provides a variety of approaches to water purification that can help assist readers with their research and applications. Water contamination problems occur frequently worldwide, hence the most updated knowledge on water purification systems can be helpful in employing the right type of filter or other mechanism of decontamination. The problems with arsenic contamination of water in Bangladesh and the lead problem in Flint, Michigan remind us of the need to monitor water pollution rigorously, from both point and non-point sources. - Provides a valuable resource on how to solve water contamination problems or develop new approaches to water purification - Presents advanced methods for monitoring water contamination - Describes various approaches to water purification - Encourages new developments in water purification techniques - Includes methods for assessing and monitoring environmental contaminants - Covers recent advancement in molecular techniques

Studies in Adsorption

Studies in Adsorption PDF Author: Earl Pettijohn
Publisher:
ISBN:
Category : Adsorption
Languages : en
Pages : 56

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Soil PH for Nutrient Availability and Crop Performance

Soil PH for Nutrient Availability and Crop Performance PDF Author:
Publisher:
ISBN: 9781789850161
Category :
Languages : en
Pages :

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