| Description |
1 online resource |
| Contents |
Cover; Half title; Title; Copyright; Acknowledgement; Summary; Table of Contents; Chapter 1 General introduction; 1.1 Background; 1.2 Groundwater, fluoride contamination, the benefits and pathophysiology; 1.3 High fluoritic regions; 1.4 Available fluoride removal technologies; 1.4.1 Techniques based on sorption process; 1.4.2 Coagulation-flocculation-filtration process: The Nalgonda technique; 1.4.3 Contact precipitation process; 1.4.4 Membrane filtration processes: Reverse osmosis (RO; 1.5 Aim and scope of the study; 1.6 Research objectives; 1.7 Outline of the thesis; References |
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Chapter 2 Fluoride occurrence in groundwater in the Northern region of GhanaAbstract; 2.1 Background; 2.2 Occurrence and hydrogeochemistry of fluoride; 2.3 The study area; 2.4 Study methodology; 2.5 Results and Discussions; 2.5.1 Descriptive statistics; 2.5.2 Inter-relationship between fluoride and electrical conductivity (EC), Calcium (Ca) and Magnesium (Mg; 2.5.3 Groundwater types; 2.5.4 Principal Component analysis; 2.5.5 Saturation indices of possible reactant minerals and equilibrium state of groundwater |
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2.5.6 Genesis of high and low fluoride groundwater in the eastern corridor of Northern Region of Ghana2.5.7 High fluoride groundwaters; 2.5.8 Low fluoride groundwaters in parts of the study area; 2.5.9 Relationship of fluoride to geology and the spatial distribution; 2.5.10 Variation of fluoride with depth; 2.6 Conclusions; References; Chapter 3 Drinking water defluoridation using aluminium (hydr) oxide coated pumice: Synthesis, equilibrium, kinetics and mechanism; Abstract; 3.1 Background; 3.2 Materials and Methods; 3.2.1 Synthesis of Al-oxide coated pumice |
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3.2.2 Characterization techniques3.2.3 Fluoride adsorption experiments; 3.3 Results and discussions; 3. 3.1 Characterization of uncoated pumice and AOCP; 3.3.2 Efficacy of AOCP for water defluoridation; 3.3.3 Fluoride adsorption efficiency of thermally treated AOCP; 3.3.4 Effect of AOCP dose; 3.3.5 Adsorption kinetics, mechanism and rate-controlling step; 3.3.6 Equilibrium isotherms for fluoride removal by AOCP; 3.3.8 Effect of storage time on the fluoride removal performance of AOCP; 3.4 Conclusions; References |
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Chapter 4 Laboratory-scale column filter studies for fluoride removal with aluminum (hydr) oxide coated pumice, regeneration and disposalAbstract; 4.1 Background; 4.2 Material and methods; 4.2.1 Preparation of adsorbent; 4.2.2 Fluoride model water; 4.2.3 Column experiments; 4.2.4 Regeneration of exhausted AOCP and fluoride adsorption studies; 4.2.5 Stabilization of spent (waste) AOCP and leaching test for safe disposal; 4.3 Results and Discussions; 4.3.1 Breakthrough curves for fluoride adsorption onto AOCP; 4.3.2 Effect of bed depth on breakthrough |
| Bibliography |
Includes bibliographical references |
| Notes |
In English, with summary in Dutch |
| Subject |
Water -- Purification.
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TECHNOLOGY & ENGINEERING -- Environmental -- General.
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Water -- Purification
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| Form |
Electronic book
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| ISBN |
9781351199971 |
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1351199978 |
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