Download or read book The Adsorption of Fluoride Ions by Hydroxyapatite from Aqueous Solutions written by Li-Ju Judy Lin and published by . This book was released on 1978 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adsorption on and Surface Chemistry of Hydroxyapatite written by Dwarika N. Misra and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydroxyapatite is the structural prototype of the main inorganic constituent of bone and teeth and, together with fluorapatite, is also one of the principal minerals in commercial phosphate ores. The adsorption characteristics and surface chemistry of hydroxyapatite are important in understanding the growth, dissolution and adhesion mechanisms of bone and tooth tissues and in elucidating the factors in mineral beneficiation such as floation and flocculation. This volume essentially documents the proceedings of the symposium on the same topic held at the American Chemical Society Meeting in Kansas City, MO, September 12-17, 1982. It includes a few papers which were not presented at the symposium but does not comprise the entire program. This volume provides, on a limited scale, a multidisciplinary overview of current work in the field of adsorptive behavior and surface chemistry of hydroxyapatite and includes certain review articles. There are two papers each on adsorption, adsorption and its effects on crystal growth or dissolution kinetics, effects of electrochemical parameters on solubility and adsorption, and newer physical methods (exoemission and high-resolution NMR) of examining hydroxyapatite surface. There is one paper each on structure modelling of apatite surface based on octacalcium phosphate interface and on biodegradation of sintered hydroxyapatite.

Download or read book Defluoridation from Aqueous Solution by Cattle Bone Char and Hydroxyapatite written by Dachuan Tang and published by . This book was released on 2019 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water containing fluoride beyond 1 mg/L is harmful to human health. In this study, cattle bone char (BC) and hydroxyapatite (HAP) were used in fluoride removal from water. The BC and HAP surface characteristics were investigated by BET, FTIR, XRD,XPS and SEM analysis. BET analysis shows that BC had a higher specific area (59.62 m2/g) than HAP (45.69 m2/g), and their pores size are 9.52 nm and 9.51 nm respectively. XRD analysis reveals that Ca10(PO4)6(OH)2 is the major constituent of BC and HAP. The effects of adsorbent dose, pH, initial fluoride concentration, temperature, and ionic strength on adsorption capacity were explored. The adsorption capacity increases with initial fluoride concentration and decreases with pH, and the maximum adsorption capacities of BC and HAP are 10.23 and 12.90 mmol/g at pH 3 respectively. The adsorption isotherms were evaluated by Freundlich and Langmuir models across fluoride concentration. Based on XRD, XPS and FTIR pattern shown, the major mechanisms of the BC and HAP for fluoride removal with increasing fluoride concentrations are surface complex formation and electrostatic interactions between adsorbent surface and fluoride, then ion exchange, and then precipitation of CaF2.

Download or read book Response Surface Methodology written by Raymond H. Myers and published by John Wiley & Sons. This book was released on 2016-01-04 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt: Praise for the Third Edition: “This new third edition has been substantially rewritten and updated with new topics and material, new examples and exercises, and to more fully illustrate modern applications of RSM.” - Zentralblatt Math Featuring a substantial revision, the Fourth Edition of Response Surface Methodology: Process and Product Optimization Using Designed Experiments presents updated coverage on the underlying theory and applications of response surface methodology (RSM). Providing the assumptions and conditions necessary to successfully apply RSM in modern applications, the new edition covers classical and modern response surface designs in order to present a clear connection between the designs and analyses in RSM. With multiple revised sections with new topics and expanded coverage, Response Surface Methodology: Process and Product Optimization Using Designed Experiments, Fourth Edition includes: Many updates on topics such as optimal designs, optimization techniques, robust parameter design, methods for design evaluation, computer-generated designs, multiple response optimization, and non-normal responses Additional coverage on topics such as experiments with computer models, definitive screening designs, and data measured with error Expanded integration of examples and experiments, which present up-to-date software applications, such as JMP®, SAS, and Design-Expert®, throughout An extensive references section to help readers stay up-to-date with leading research in the field of RSM An ideal textbook for upper-undergraduate and graduate-level courses in statistics, engineering, and chemical/physical sciences, Response Surface Methodology: Process and Product Optimization Using Designed Experiments, Fourth Edition is also a useful reference for applied statisticians and engineers in disciplines such as quality, process, and chemistry.

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 440 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

Download or read book Encyclopedia of Surface and Colloid Science 2004 Update Supplement written by P. Somasundaran and published by CRC Press. This book was released on 2004-08-11 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: Appending the Encyclopedia of Surface and Colloid Science by 42 entries as well as 3800 new citations, 1012 equations, and 485 illustrations and chemical structures, this important supplement summarizes a constellation of new theoretical and experimental findings related to chemical characterization, mechanisms, interfacial behavior, methods and modeling, and applications.

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 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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

Download or read book Hydroxyapatite written by Yoshiki Oshida and published by Momentum Press. This book was released on 2014-12-01 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evidence-based literature reviews can provide foundation skills in research-oriented bibliographic inquiry, with an emphasis on such review and synthesis of applicable literature. Information is gathered by surveying a broad array of multidisciplinary research publications written by scholars and researchers. This book is based on a review of about 2,000 carefully selected articles about hydroxyapatite (HA) materials from about 150 peer-review journals in both engineering and medical areas and presents itself as a typical example of evidence-based learning (EBL). HA is very unique material which has been employed equally in both engineering and medical and dental fields. In addition, the name “apatite” comes from the Greek word απατw, which means to deceive. What is actually happening inside the apatite crystal structure is based on the unique characteristics of ion exchangeability. Because of this, versatility of HA has been recognized in wide ranges, including bone-grafting substitutes, various ways to fabricate HAs, HA-based coating materials, HA-based biocomposites, scaffold materials, and drug-delivery systems. This book covers all these interesting areas involved in HA materials science and technology.

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.

Download or read book The Determination of Soluble Fluoride in Fluoride containing Dentifrices written by Gino Baseggio and published by . This book was released on 1957 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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:

Download or read book Eco Friendly Nano Hybrid Materials for Advanced Engineering Applications written by S. Ananda Kumar and published by CRC Press. This book was released on 2017-03-27 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new book focuses on eco-friendly nanohybrid. It clearly summarizes the fundamentals and established techniques of synthesis and processing of eco-friendly nanohybrid materials to provide a systematic and coherent picture of synthesis and the processing of nanomaterials. The research on nanotechnology is evolving and expanding very rapidly. Nanotechnology represents an emerging technology that has the potential to have an impact on an incredibly wide number of industries, such as the medical, environmental, and pharmaceutical industries. There is a growing need to develop environmentally friendly processes for corrosion control that do not employ toxic chemicals. This book helps to fill this need. This volume is a comprehensive compilation of several trending research topics, such as fouling, energy-storing devices, water treatment, corrosion, biomaterials, and high performance materials. The topics are approached in an encompassing manner, covering the basics and the recent trends in this area, clearly defining the problems and suggesting potential solutions. Topics in the book include: Synthesis of complex polymer intermediates Synthesis of nanoparticles and nanofibers Binding interaction between nano- and micromaterials Fabrication of polymer nanocomposites Making of functionally terminated nanohybrid coatings Development of corrosion resistant coatings Antifouling coatings Bioceramic materials Materials for therapeutic and aesthetic applications Eco-Friendly Nano-Hybrid Materials for Advanced Engineering Applications will benefit a wide variety of those in this field, including: Shipping and coating industries encountering fouling problems Innovators in the field of energy storage and electrical equipment Developers of efficient water treatment systems Biomedical industries looking for novel bio-compatible materials Industries seeking high performance epoxy-based materials needed for specific applications

Download or read book Aquananotechnology written by David E. Reisner and published by CRC Press. This book was released on 2014-09-24 with total page 887 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world's fresh water supplies are dwindling rapidly-even wastewater is now considered an asset. By 2025, most of the world's population will be facing serious water stresses and shortages. Aquananotechnology: Global Prospects breaks new ground with its informative and innovative introduction of the application of nanotechnology to the remediatio

Download or read book Novel Approaches to Design Eco friendly Materials Based on Natural Nanomaterials written by Aiqin Wang and published by Frontiers Media SA. This book was released on 2019-08-12 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: Naturally available nanomaterials or those synthesized from natural resources become “new favorite” of material world due to their advantages of low cost, safety and environmental friendliness. They are honored as future “green materials” and widely used in fabricating various functional materials. Naturally available materials have been playing an increasingly important role in many fields such as environmental remediation, separation, catalysis, and polymer composites. This book collects latest research results on the new composites for environmental application, focusing on the study of fabricating functional composites using natural clay minerals. Naturally available materials or solid waste or minerals are good precursors for producing adsorbents. Composites based on sub-bituminous coal, lignite, and a blend of coal and Irvingia gabonensis seed shells, the Cl-type Mg-Al hydrotalcite (Cl-LDH), the hydroxyapatite decorated with carbon nanotube and Zirconium (Zr)-containing silica residue purification (ZSR-P) were proved to have good adsorption capability to Cd(II) and Pb(II) ions, antibiotic molecules, Cd(II), and fluoride, respectively. The nano-Mg(OH)2 loaded carbon cloth showed good separation effect for Eu(III), and the sodium-modified clinoptilolite showed good separation effect for CH4/N2 from coal bed gas. Also, natural nanoclay is an effective precursor for the preparation of inorganic-inorganic or organic-inorganic nano-hybrid materials. Using nano-kaolinite as a carrier, the inorganic-inorganic hybrid cobalt blue pigment with excellent color and stability can be obtained by surface co-precipitation and in-situ calcination crystallization process. The intercalation of 7-amino-4-methylcoumarin (AMC) molecules into the interlayer space of montmorillonite (MMT) can effectively inhibit fluorescence quenching and improve the detection effectiveness of Cr(VI) in water. The interlayer space of kaolinite can accommodate organic molecules to form an organic-inorganic hybrid composite. Natural clay minerals are also effective carriers for catalysts. Er3+:CeO2/palygorskite nanocomposites prepared by a facile precipitation method showed excellent desulfurization rate under visible light irradiation. The zero-valent iron-loaded nanoclays composite catalysts can degrade efficiently Rhodamine 6G (Rh 6G) under microwave irradiation. In addition, the polymer composites have been developed using natural palygorskite, montmorillonite nanosheets or silica nanoparticles as inorganic components, which are potential to be used in many fields such as packing, biomedicine, or rubber. With the increasing attention to clay minerals, research methods for the microstructure of clay minerals continue to receive attention. It is no doubt that natural materials have got a booming attention from researchers in mineralogy, materials science, chemistry, energy, biomedicine and other fields due to their advantages. However, there is still a long way to go to substitute traditional synthetic nanomaterials with natural ones, and there are still theoretical and technological limitation in the design and synthesis of new materials from natural materials. Related theoretical research and technological development require continuous exploration by researchers. This book has collected some recent advances in related research, and hopes to play a role in attracting more attention to the construction of functional materials from natural raw materials. It is also believed that through the unremitting efforts of all researchers, the dream of green materials and green preparation processes can be realized.

Download or read book Separations of Water Pollutants with Nanotechnology written by Satinder Ahuja and published by Elsevier. This book was released on 2022-04-29 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Separations of Water Pollutants with Nanotechnology, the latest volume in the Separation Science and Technology series, offers new solutions for remediating water pollution utilizing nanomaterials with separation methods. Current water purification methods are unsuitable, inconvenient or expensive, so there is a need for new and better processes and techniques. Nanomaterials can purify water by removing pollutants such as heavy metals, pathogens, organic compounds, inorganic compounds, pharmaceuticals, and chemicals of emerging concern. These can effectively replace membrane-based methods if the right expertise is developed—this book helps separation scientists do just that. Existing water treatment problems can be solved by applying a nanotechnology-based processes: antimicrobial nanotechnology, zero-valent iron nanoparticles, nanoadsorbents, nano-enhanced membranes, nanometal oxides, and nano photocatalysts. The current literature places emphasis on materials chemistry rather than the separation methods used for water purification. This new volume presents a collection of chapters that deal with remediation based on separation chemistry. Written by leaders in their respective fields from around the world and edited by Satinder Ahuja, a leading expert on water quality improvement Covers the environmental impact of anthropogenic nanoparticles and plant derived bionanomaterials, which are not contained in other books related to nanomaterials for water purification Illustrates key information visually wherever possible throughout the book, e.g. process diagrams in the nanomaterial synthesis and nanomembrane fabrication chapters, electron microscope images, and more

Download or read book INTERNATIONAL CONFERENCE on FRONTIERS of ENVIRONMENT ENERGY and BIOSCIENCE written by Dawei Zheng and published by DEStech Publications, Inc. This book was released on 2013-12-18 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt: We cordially invite you to attend 2013 International Conference on Frontiers of Environment, Energy and Bioscience (ICFEEB 2013), which will be held in Beijing, China during October 24–25, 2013. The main objective of ICFEEB 2013 is to provide a platform for researchers, engineers, academicians as well as industrial professionals from all over the world to present their research results and development activities in Environment, Energy and Bioscience. This conference provides opportunities for the delegates to exchange new ideas and experiences face to face, to establish business or research relations and to find global partners for future collaboration. ICFEEB 2013 received over 400 submissions which were all reviewed by at least two reviewers. As a result of our highly selective review process four hundred papers have been retained for inclusion in the ICFEEB 2013 proceedings, less than 40% of the submitted papers. The program of ICFEEB 2013 consists of invited sessions, and technical workshops and discussions covering a wide range of topics. This rich program provides all attendees with the opportunities to meet and interact with one another. We hope your experience is a fruitful and long lasting one. With your support and participation, the conference will continue its success for a long time. The conference is supported by many universities and research institutes. Many professors play an important role in the successful holding of the conference, so we would like to take this opportunity to express our sincere gratitude and highest respects to them. They have worked very hard in reviewing papers and making valuable suggestions for the authors to improve their work. We also would like to express our gratitude to the external reviewers, for providing extra help in the review process, and to the authors for contributing their research result to the conference. Special thanks go to our publisher DEStech Publications. At the same time, we also express our sincere thanks for the understanding and support of every author. Owing to time constraints, imperfection is inevitable, and any constructive criticism is welcome. We hope you will have a technically rewarding experience, and use this occasion to meet old friends and make many new ones. Do not miss the opportunity to explore in Beijing, China. And do not forget to take a sample of the many and diverse attractions in the rest of the China. We wish all attendees an enjoyable scientific gathering in Beijing, China. We look forward to seeing all of you next year at the conference. The Conference Organizing Committees October 24–25, 2013 Beijing, China