Fluoride Removal From Groundwater By Adsorption Technology

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Fluoride Removal from Groundwater by Adsorption Technology

Author : Abdulai Salifu
Publisher : CRC Press
ISBN 13 : 9781138373204
Total Pages : 276 pages
Book Rating : 4.3/5 (732 download)

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Book Synopsis Fluoride Removal from Groundwater by Adsorption Technology by : Abdulai Salifu

Download or read book Fluoride Removal from Groundwater by Adsorption Technology written by Abdulai Salifu and published by CRC Press. This book was released on 2018-09-27 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Author : Mohammad Hadi Dehghani
Publisher : Elsevier
ISBN 13 : 0323856462
Total Pages : 236 pages
Book Rating : 4.3/5 (238 download)

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Book Synopsis Green Technologies for the Defluoridation of Water by : Mohammad Hadi Dehghani

Download or read book Green Technologies for the Defluoridation of Water written by Mohammad Hadi Dehghani and published by Elsevier. This book was released on 2021-07-17 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Fluoride Removal from Groundwater by Adsorption Technology

Author : Abdulai Salifu
Publisher : CRC Press
ISBN 13 : 1351199986
Total Pages : 276 pages
Book Rating : 4.3/5 (511 download)

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Book Synopsis Fluoride Removal from Groundwater by Adsorption Technology by : Abdulai Salifu

Download or read book Fluoride Removal from Groundwater by Adsorption Technology written by Abdulai Salifu and published by CRC Press. This book was released on 2017-11-13 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Advances in Water Purification Techniques

Author : Satinder Ahuja
Publisher : Elsevier
ISBN 13 : 0128147911
Total Pages : 442 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Advances in Water Purification Techniques by : Satinder Ahuja

Download or read book Advances in Water Purification Techniques written by Satinder Ahuja and published by Elsevier. This book was released on 2018-11-29 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Fluoride in Drinking Water

Author : A.K. Gupta
Publisher : CRC Press
ISBN 13 : 1498756530
Total Pages : 208 pages
Book Rating : 4.4/5 (987 download)

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Book Synopsis Fluoride in Drinking Water by : A.K. Gupta

Download or read book Fluoride in Drinking Water written by A.K. Gupta and published by CRC Press. This book was released on 2016-04-05 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore the Health Effects of Fluoride PollutionFluoride 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

Groundwater Geochemistry

Author : Sughosh Madhav
Publisher : John Wiley & Sons
ISBN 13 : 1119709709
Total Pages : 448 pages
Book Rating : 4.1/5 (197 download)

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Book Synopsis Groundwater Geochemistry by : Sughosh Madhav

Download or read book Groundwater Geochemistry written by Sughosh Madhav and published by John Wiley & Sons. This book was released on 2021-06-14 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains both practical and theoretical aspects of groundwater resources relating to geochemistry. Focusing on recent research in groundwater resources, this book helps readers to understand the hydrogeochemistry of groundwater resources. Dealing primarily with the sources of ions in groundwater, the book describes geogenic and anthropogenic input of ions into water. Different organic, inorganic and emerging contamination and salinity problems are described, along with pollution-related issues affecting groundwater. New trends in groundwater contamination remediation measures are included, which will be particularly useful to researchers working in the field of water conservation. The book also contains diverse groundwater modelling examples, enabling a better understanding of water-related issues and their management. Groundwater Geochemistry: Pollution and Remediation offers the reader: An understanding of the quantitative and qualitative challenges of groundwater resources An introduction to the environmental geochemistry of groundwater resources A survey of groundwater pollution-related issues Recent trends in groundwater conservation and remediation Mathematical and statistical modeling related to groundwater resources Students, lecturers and researchers working in the fields of hydrogeochemistry, water pollution and groundwater will find Groundwater Geochemistry an essential companion.

Fluoride in Drinking-water

Author : John Kirtley Fawell
Publisher : World Health Organization
ISBN 13 : 9241563192
Total Pages : 145 pages
Book Rating : 4.2/5 (415 download)

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Book Synopsis Fluoride in Drinking-water by : John Kirtley Fawell

Download or read book Fluoride in Drinking-water written by John Kirtley Fawell and published by World Health Organization. This book was released on 2006 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Removal of fluorides from industrial wastewaters using activated alumina

Author : I. F. Frankel
Publisher :
ISBN 13 :
Total Pages : 276 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Removal of fluorides from industrial wastewaters using activated alumina by : I. F. Frankel

Download or read book Removal of fluorides from industrial wastewaters using activated alumina written by I. F. Frankel and published by . This book was released on 1980 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Layered Double Hydroxides

Author : Vicente Rives
Publisher : Nova Publishers
ISBN 13 : 9781590330609
Total Pages : 518 pages
Book Rating : 4.3/5 (36 download)

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Book Synopsis Layered Double Hydroxides by : Vicente Rives

Download or read book Layered Double Hydroxides written by Vicente Rives and published by Nova Publishers. This book was released on 2001 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Layered double hydroxides are one of the variety of names given to a family of layered materials first discovered in Sweden in 1842. These materials are interesting because their layer cations can be changed among a wide selection, and the interlayer anion can also be (nearly) freely chosen. Like cationic clays, they can be pillared and can exchange interlayer species -- thus increasing applications and making new routes to derivatives. The principle areas of application include catalyst support, anion scavengers, polymer stabilisers, and antacids. In the last several years, reviews and studies of LDHs have dealt with these uses. This book aims to update the current body of LDH knowledge from a wide array of views. The first section addresses the synthesis and physiochemical characterisation of these materials, and section two focuses on the applications of LDHs.

Handbook of Clay Science

Author :
Publisher : Newnes
ISBN 13 : 0080993710
Total Pages : 1748 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Handbook of Clay Science by :

Download or read book Handbook of Clay Science written by and published by Newnes. This book was released on 2013-07-23 with total page 1748 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Advanced Treatment Technologies for Fluoride Removal in Water

Author : Akhilesh Kumar Yadav
Publisher : Springer Nature
ISBN 13 : 3031388453
Total Pages : 364 pages
Book Rating : 4.0/5 (313 download)

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Book Synopsis Advanced Treatment Technologies for Fluoride Removal in Water by : Akhilesh Kumar Yadav

Download or read book Advanced Treatment Technologies for Fluoride Removal in Water written by Akhilesh Kumar Yadav and published by Springer Nature. This book was released on 2024-01-01 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Advances in Civil Engineering and Infrastructural Development

Author : Laxmikant Madanmanohar Gupta
Publisher : Springer Nature
ISBN 13 : 9811564639
Total Pages : 755 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Advances in Civil Engineering and Infrastructural Development by : Laxmikant Madanmanohar Gupta

Download or read book Advances in Civil Engineering and Infrastructural Development written by Laxmikant Madanmanohar Gupta and published by Springer Nature. This book was released on 2020-11-13 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises selected proceedings of the International Conference on Recent Advancements in Civil Engineering and Infrastructural Developments (ICRACEID 2019). The contents are broadly divided into five areas (i) smart transportation with urban planning, (ii) clean energy and environment, (iii) water distribution and waste management, (iv) smart materials and structures, and (v) disaster management. The book aims to provide solutions to global challenges using innovative and emerging technologies covering various fields of civil engineering. The major topics covered include urban planning, transportation, water distribution, waste management, disaster management, environmental pollution and control, environmental impact assessment, application of GIS and remote sensing, and structural analysis and design. Given the range of topics discussed, the book will be beneficial for students, researchers as well industry professionals.

Climate Impacts on Water Resources in India

Author : Ashish Pandey
Publisher : Springer Nature
ISBN 13 : 3030514277
Total Pages : 393 pages
Book Rating : 4.0/5 (35 download)

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Book Synopsis Climate Impacts on Water Resources in India by : Ashish Pandey

Download or read book Climate Impacts on Water Resources in India written by Ashish Pandey and published by Springer Nature. This book was released on 2020-08-31 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book chiefly focuses on environmental flow, water pollution and water quality. Several chapters also cover water treatment technologies and management. In today’s context, climate change and climate variability are important issues in the water sector, which is called upon to develop adaptation strategies to cope with their negative impacts. Human health depends upon the quality of water used for drinking and irrigation purposes. These core issues are discussed and addressed in several chapters. The book explores the impact of climate change on water resources and considers various climatological scenarios. In this regard, it carries out a trend analysis and compares the performance of various Global Climate Models (GCMs). Further, it conducts a water quality analysis and water quality mapping so as to provide information on the most vulnerable areas in the context of water quality. Emerging pollutants, generated from paper mills, are identified in order to choose an appropriate treatment technology. Bioremediation techniques are included for the characterization of improved water quality parameters. The book also presents a low-cost treatment technology for fluoride removal, which can help water managers ensure potable water to stakeholders. In terms of maintaining river ecology in the downstream areas of water resources project sites, the book provides a number of case studies on assessment of environmental flows. Advanced treatment technologies that can be highly advantageous for removing water pollutants are presented. Given its scope, the book offers a valuable resource for academics, water resources practitioners, scientists, water managers, environmentalists, administrators, NGOs, researchers and students who are involved in water management with a main focus on water pollution, the environment, climate change and health.

Soil PH for Nutrient Availability and Crop Performance

Author :
Publisher :
ISBN 13 : 9781789850161
Total Pages : pages
Book Rating : 4.8/5 (51 download)

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Book Synopsis Soil PH for Nutrient Availability and Crop Performance by :

Download or read book Soil PH for Nutrient Availability and Crop Performance written by and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Membrane Technologies for Water Treatment

Author : Alberto Figoli
Publisher : CRC Press
ISBN 13 : 1317563352
Total Pages : 331 pages
Book Rating : 4.3/5 (175 download)

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Book Synopsis Membrane Technologies for Water Treatment by : Alberto Figoli

Download or read book Membrane Technologies for Water Treatment written by Alberto Figoli and published by CRC Press. This book was released on 2016-02-18 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on the application of membrane technologies in removing toxic metals\metalloids from water. Particular attention is devoted to the removal of arsenic, uranium, and fluoride. These compounds are all existing in the earth’s crust at levels between two and five thousands micrograms per kg (parts per million) on average and these compounds can be considered highly toxic to humans, who are exposed to them primarily from air, food and water. In order to comply with the new maximum contaminant level, numerous studies have been undertaken to improve established treatments or to develop novel treatment technologies for removing toxic metals from contaminated surface and groundwater. Among the technologies available, applicable for water treatment, membrane technology has been identified as a promising technology to remove such toxic metals from water. The book describes both pressure driven (traditional processes, such as Nanofiltration, Reverse Osmosis, Ultrafiltration,etc) and more advanced membrane processes (such as forward osmosis, membrane distillation, and membrane bio-reactors) employed in the application of interest. Key aspect of this book is to provide information on both the basics of membrane technologies and on the results depending on the type of technology employed.

Contaminants of Emerging Concerns and Reigning Removal Technologies

Author : Manish Kumar
Publisher : CRC Press
ISBN 13 : 1000551040
Total Pages : 490 pages
Book Rating : 4.0/5 (5 download)

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Book Synopsis Contaminants of Emerging Concerns and Reigning Removal Technologies by : Manish Kumar

Download or read book Contaminants of Emerging Concerns and Reigning Removal Technologies written by Manish Kumar and published by CRC Press. This book was released on 2022-06-30 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: With an increased demand for wastewater reuse, groundwater recharge with treated wastewater has been practiced across the globe. As a result, groundwater quality deteriorates by emerging micropollutants from various anthropogenic origins, including untreated wastewater, seepage of landfill leachate, and runoff from agricultural lands. The fate of such emerging and geogenic contaminants in subsurface systems, especially in the groundwater, depends on several factors. Physicochemical properties of contaminants such as octanol-water partition coefficient, dissociation constant, water solubility, susceptibility to biodegradation under anaerobic conditions, and environmental persistence under diverse geological and pH conditions play a critical role during subsurface mass flow. Thus, advanced wastewater treatment techniques, followed by implementing stricter guidelines, are some of the measures that can safeguard water resources. This book, in general, gives an understanding of the fate and mitigation strategies for emerging and geogenic contaminants in the groundwater. The first and second sections provide a detailed insight into various removal techniques and mitigation approaches. Possible treatment strategies, including bioremediation and natural attenuation, are also covered in those sections. Environmental assessment, groundwater vulnerability, health effects, and regulations pertaining to various contaminants are systematically presented in the third section.

Manganese Removal from Groundwater

Author : J.H. Bruins
Publisher : CRC Press
ISBN 13 : 1351652508
Total Pages : 162 pages
Book Rating : 4.3/5 (516 download)

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Book Synopsis Manganese Removal from Groundwater by : J.H. Bruins

Download or read book Manganese Removal from Groundwater written by J.H. Bruins and published by CRC Press. This book was released on 2017-03-16 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: In The Netherlands, Belgium and other European countries, manganese is removed by conventional groundwater treatment with aeration and rapid (sand) filtration. Such a treatment process is easy to operate, cost effective and sustainable, because it does not make use of strong oxidants such as O3, Cl2, ClO2 and KMnO4 with the associated risk of by-product formation and over or under dosing. However, application of aeration-filtration is also facing drawbacks, especially the long ripening time of filter media. Due to the long ripening time, water companies have to waste large volumes of treated water, making this process less sustainable. Also, costs associated with filter media ripening (man power, electricity, operational and analysis costs) are high. Therefore decreasing the filter ripening time, regarding manganese removal is a big issue. Although already extended research has been carried out into manganese removal, the controlling mechanisms, especially of the start up face of filter media ripening, are not fully understood yet. The emphasis of this thesis is to provide a better understanding of the mechanisms involved in the ripening of virgin filter media, regarding manganese removal and how to shorten or completely eliminate the long ripening period of filters with virgin material. This thesis therefore highlights the role of the formation of a manganese oxide coating on virgin filter media. Characterization and identification revealed that the responsible manganese oxide for an effective manganese removal was Birnessite. It was found that Birnessite, formed at the beginning of the ripening process was of a biological origin. Based on the knowledge that manganese removal in conventional groundwater treatment is initiated biologically, long ripening times may be reduced by creating conditions favouring the growth of manganese oxidizing bacteria, e.g., by limiting the back wash frequency and / or intensity. Additionally, this thesis also shows that the use of freshly prepared manganese oxide, containing Birnessite, can completely eliminate filter media ripening time.