Download or read book Inorganic Sorption in Polymer Modified Bentonite Clays written by Melody Schwartz Nocon and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: In 1986, geosynthetic clay liners (GCLs) were invented and successfully used as a replacement for the soil layer in composite lining systems. In some applications an additive (polymer) is mixed with the bentonite to increase performance, especially in those that have low concentrations of sodium bentonite (EPA 2001). Studies showing significant increases in hydraulic conductivity values for bentonite in the presence of high salt concentrations are frequently documented and there is a risk of early breakthrough due to performance failure of the GCL clay component. (Ashmawy et al, 2002). It has also been stated that sodium, potassium, calcium, and magnesium have such a high affinity for the clay's surface other chemical species have little chance of attenuation (EPA 2001). For these reasons, researching sorption in the presence of major salt cations and polymers gains great importance. Distribution coefficients were extrapolated from Linear, Freundlich and Langmuir sorption isotherms for sodium and calcium cations modeled from data collected from batch tests of sodium bentonite and various manufactured and custom mixed polymer modified bentonites. Surface characterization before and after calcium or sodium solution exposure of all tested media was accomplished by use of scanning electron microscopy and energy dispersive x-ray analysis.
Download or read book Clay Materials for Environmental Remediation written by Suryadi Ismadji and published by Springer. This book was released on 2015-03-24 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of environmental remediation is presented with an emphasis on the role of clay minerals in water purification. In the first chapter, important aspects of environmental problems and possible solutions are discussed. In the second chapter, the application of natural clay minerals as environmental cleaning agents are explained. The discussion is focused on the role of different types of clay materials in hazardous substance removal from air, aqueous solutions, wastewater, aquaculture, ground water, etc. In the next chapter, the modification of clay materials is explored including the preparation of clay composite materials for environmental remediation. Various aspects of clay material modifications and the effects of clay surface chemistry on the removal of hazardous material is also discussed. Next, the equilibrium and kinetics of hazardous substance adsorption is presented. This chapter summarizes recent studies on the removal of hazardous substances from aqueous solutions and the environment using various types of clay minerals. The brief also includes various models used in adsorption studies and touches on the characterization of clay minerals.
Download or read book Polymer Nanocomposites based on Inorganic and Organic Nanomaterials written by Smita Mohanty and published by John Wiley & Sons. This book was released on 2015-06-29 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers all aspects of the different classes of nanomaterials – from synthesis to application. It investigates in detail the use and feasibility of developing nanocomposites with these nanomaterials as reinforcements. The book encompasses synthesis and properties of cellulose nanofibers, bacterial nanocellulose, carbon nanotubes / nanofibers, graphene, nanodiamonds, nanoclays, inorganic nanomaterials and their nanocomposites for high-end applications such as electronic devices, energy storage, structural and packaging. The book also provides insight into various modification techniques for improving the functionality of nanomaterials apart from their compatibility with the base matrix.
Download or read book Clay Composites written by Meththika Vithanage and published by Springer Nature. This book was released on 2023-09-07 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the advantages and disadvantages and characterization techniques of clay-composites for environmental applications. It examines the structure and chemistry of different types of clay-composites and their synthesis, characteristics and applications in detail with a special focus on upscaling and limitations. Various topics covered in this book include overview of clay composites and their environmental applications, clay-biochar composites, clay-surfactants composites, organo-clay composites, clay hybrids and enriched clay composites. This book will be useful for beginners, researchers, material scientists and engineers who are interested in applied research of clay-based composites.
Download or read book Multilevel Modeling of Secure Systems in QoP ML written by Bogdan Księżopolski and published by CRC Press. This book was released on 2015-07-02 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introducing the Quality of Protection Modeling Language (QoP-ML), this book provides for the abstraction of security systems while maintaining emphasis on the details of quality protection . It delineates the steps used in cryptographic protocol and introduces a multilevel protocol analysis that expands current understanding. Every operation defined by QoP-ML is described within parameters of security metrics, therefore evaluating the impact of the operation on the entire system's security.
Download or read book Bentonite Clay written by Roland Pusch and published by CRC Press. This book was released on 2015-06-09 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies the Environmental, Cosmetic, and Pharmaceutical Applications of Bentonite ClayBentonite clay, of which members of the smectite family of clay minerals are particularly important, has proven to be effective in sealing off wastes from groundwater. Bentonite Clay: Environmental Properties and Applications explores the mineralogy of clays in ge
Download or read book Characterization and Applications of Clay as a Novel Material written by Neeraj Kumari and published by Cambridge Scholars Publishing. This book was released on 2023-09-07 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clay is an abundant naturally occurring raw material with different unique characteristics such as high surface area, chemical and mechanical stability, cation exchange ability, and more. This book is a comprehensive overview of clay science, covering the characterization and application of clay minerals. Applications such as stratigraphic correlation, environmental deposition indication, pharmaceutical uses, wastewater treatment, construction, and agriculture are explored. This book will provide an important reference for researchers, scientists and engineers who have a keen interest in clay as a sustainable material, solid acid adsorbent, and catalyst.
Download or read book Study of Adsorption Properties Of Bentonite Clay written by Reda Marouf and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The clay used in this study was the bentonite from Mostagnem, Algeria. This material is used in many fields such as drilling, foundry, painting, ceramics, etc. It can also be applied in the treatment of wastewaters from chemical industries by means of adsorption. In this chapter the physicochemical properties of bentonite were determined by using several analyses techniques such as chemical composition, XRD, FTIR and SBET. The bentonite was intercalated by aluminum poly-cations solution and cethytrimethyl ammonium bromide. The acid activation of natural bentonite was performed by treatment with hydrochloric acid at different concentrations. The surface water pollutants removed by the modified bentonites are bemacid yellow E-4G and reactive MX-4R dyes, and fungicide chlorothalinil. The Langmuir and Freundlich adsorption models were applied to describe the related isotherms. The pseudo-first order and pseudo-second order kinetic models were used to describe the kinetic data. The changes of enthalpy, entropy and Gibbs free energy of adsorption process were also calculated.
Download or read book Clay Polymer Nanocomposites written by Khouloud Jlassi and published by Elsevier. This book was released on 2017-07-26 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clay–Polymer Nanocomposites is a complete summary of the existing knowledge on this topic, from the basic concepts of synthesis and design to their applications in timely topics such as high-performance composites, environment, and energy issues. This book covers many aspects of synthesis such as in- situ polymerization within the interlamellar spacing of the clays or by reaction of pristine or pre-modified clays with reactive polymers and prepolymers. Indeed, nanocomposites can be prepared at industrial scale by melt mixing. Regardless the synthesis method, much is said in this book about the importance of theclay pre-modification step, which is demonstrated to be effective, on many occasions, in obtaining exfoliated nanocomposites. Clay–Polymer Nanocomposites reports the background to numerous characterization methods including solid state NMR, neutron scattering, diffraction and vibrational techniques as well as surface analytical methods, namely XPS, inverse gas chromatography and nitrogen adsorption to probe surface composition, wetting and textural/structural properties. Although not described in dedicated chapters, numerous X-ray diffraction patterns of clay–polymer nanocomposites and reference materials are displayed to account for the effects of intercalation and exfoliations of layered aluminosilicates. Finally, multiscale molecular simulation protocols are presenting for predicting morphologies and properties of nanostructured polymer systems with industrial relevance. As far as applications are concerned, Clay–Polymer Nanocomposites examines structural composites such as clay–epoxy and clay–biopolymers, the use of clay–polymer nanocomposites as reactive nanocomposite fillers, catalytic clay-(conductive) polymers and similar nanocomposites for the uptake of hazardous compounds or for controlled drug release, antibacterial applications, energy storage, and more. The most comprehensive coverage of the state of the art in clay–polymer nanocomposites, from synthesis and design to opportunities and applications Covers the various methods of characterization of clay–polymer nanocomposites - including spectroscopy, thermal analyses, and X-ray diffraction Includes a discussion of a range of application areas, including biomedicine, energy storage, biofouling resistance, and more
Download or read book Formation and Properties of Clay Polymer Complexes written by B.K.G. Theng and published by Elsevier. This book was released on 2012-05-09 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: Formation and Properties of Clay-Polymer Complexes provides a comprehensive account of the reactions between clay minerals and organic polymers. The book opens with a discussion of the structures of common clay minerals, clays colloid chemistry, and the behaviour of organic polymers at clay surfaces. This is followed by a systematic treatment of complex formation between clay minerals and various classes of synthetic and naturally occurring polymers, a description of the properties of the resulting complexes and, wherever appropriate, their practical applications. The book will have a new separate chapter on clay-polymer nanocomposites. Each chapter is written as a self-contained review paper, giving a list of reference to the original literature. Describes the important development in clay-polymer nanocomposites Contains new figures and diagrams Extenisve revision of the previous edition
Download or read book Handbook of Research on Diverse Applications of Nanotechnology in Biomedicine Chemistry and Engineering written by Soni, Shivani and published by IGI Global. This book was released on 2014-08-31 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a paradigm for the future, micro-scale technology seeks to fuse revolutionary concepts in science and engineering and then translate it into reality. Nanotechnology is an interdisciplinary field that aims to connect what is seen with the naked eye and what is unseen on the molecular level. The Handbook of Research on Diverse Applications of Nanotechnology in Biomedicine, Chemistry, and Engineering examines the strengths and future potential of micro-scale technologies in a variety of industries. Highlighting the benefits, shortcomings, and emerging perspectives in the application of nano-scale technologies, this book is a comprehensive reference source for synthetic chemists, engineers, graduate students, and researchers with an interest in the multidisciplinary applications, as well as the ongoing research in the field.
Download or read book Green Chemistry for Dyes Removal from Waste Water written by Sanjay K. Sharma and published by John Wiley & Sons. This book was released on 2015-02-25 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of synthetic chemical dyes in various industrial processes, including paper and pulp manufacturing, plastics, dyeing of cloth, leather treatment and printing, has increased considerably over the last few years, resulting in the release of dye-containing industrial effluents into the soil and aquatic ecosystems. The textile industry generates high-polluting wastewaters and their treatment is a very serious problem due to high total dissolved solids (TDS), presence of toxic heavy metals, and the non-biodegradable nature of the dyestuffs in the effluent. The chapters in this book provide an overview of the problem and its solution from different angles. These problems and solutions are presented in a genuinely holistic way by world-renowned researchers. Discussed are various promising techniques to remove dyes, including the use of nanotechnology, ultrasound, microwave, catalysts, biosorption, enzymatic treatments, advanced oxidation processes, etc., all of which are "green." Green Chemistry for Dyes Removal from Wastewater comprehensively discusses: Different types of dyes, their working and methodologies and various physical, chemical and biological treatment methods employed Application of advanced oxidation processes (AOPs) in dye removal whereby highly reactive hydroxyl radicals are generated chemically, photochemically and/or by radiolytic/ sonolytic means. The potential of ultrasound as an AOP is discussed as well. Nanotechnology in the treatment of dye removal types of adsorbents for removal of toxic pollutants from aquatic systems Photocatalytic oxidation process for dye degradation under both UV and visible light, application of solar light and solar photoreactor in dye degradation
Download or read book Smart Polymer Nanocomposites written by Nisar Ali and published by Elsevier. This book was released on 2022-10-21 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: Smart Polymer Nanocomposites: Design, Synthesis, Functionalization, Properties, and Applications brings together the latest research on synthetic methods and surface functionalization of polymers and polymer composites for advanced applications. Sections cover the basic principles of advanced polymer nanocomposites, including morphology, materials, characterization, and copolymerization, provide in-depth coverage of synthetic methods, facilitating the preparation of polymeric nanoparticles with the required properties, examine the morphologies of polymer nanocomposites and stimuli-responsive surfaces, and focus on cutting-edge approaches to tailoring polymeric nanocomposites according to the requirements. The book's final chapters focus on smart polymer nanocomposites for specific advanced applications, including high-temperature environments, bone tissue regeneration, biomedicine, wastewater treatment, dielectric and energy storage, chiral separation, food packaging, sensing, and drug delivery. This is a valuable resource for researchers and advanced students in polymer science, composite science, nanotechnology, and materials science, as well as those approaching the area from a range of other disciplines, including industry R&D. Covers morphology, architectures, polymer materials, characterization, and polymerization methodologies for polymer nanocomposites Provides novel techniques for the design, synthesis and surface tailoring of polymer nanoparticles to achieve required properties Explores state-of-the-art applications in high temperature environments, biomedicine, environment, sensing, energy storage and food packaging
Download or read book Soil Amendments for Sustainability written by Amitava Rakshit and published by CRC Press. This book was released on 2018-09-03 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the pros and cons of amendment materials to restore the functioning of soil resources. It presents a holistic overview on affected land revitalization, clean up and revegetation using these amendments that could be implemented in the long term management of the soil-plant-atmosphereanimal continuum.
Download or read book Nanomaterials for Water Remediation written by Ajay Kumar Mishra and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-06-08 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: The capability to generate potable water from polluted sources is growing in importance as pharmaceuticals, microplastics and waste permeate our soil. Nanotechnology allows for improvements in water remediation technologies by taking advantage of the unique properties of materials at this small scale.
Download or read book Self Healing Polymers written by Wolfgang H. Binder and published by John Wiley & Sons. This book was released on 2013-03-29 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: Self-healing is a well-known phenomenon in nature: a broken bone merges after some time and if skin is damaged, the wound will stop bleeding and heals again. This concept can be mimicked in order to create polymeric materials with the ability to regenerate after they have suffered degradation or wear. Already realized applications are used in aerospace engineering, and current research in this fascinating field shows how different self-healing mechanisms proven successful by nature can be adapted to produce even more versatile materials. The book combines the knowledge of an international panel of experts in the field and provides the reader with chemical and physical concepts for self-healing polymers, including aspects of biomimetic processes of healing in nature. It shows how to design self-healing polymers and explains the dynamics in these systems. Different self-healing concepts such as encapsulated systems and supramolecular systems are detailed. Chapters on analysis and friction detection in self-healing polymers and on applications round off the book.
Download or read book Adsorption through Advanced Nanoscale Materials written by Chandrabhan Verma and published by Elsevier. This book was released on 2023-08-14 with total page 729 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adsorption through Advanced Nanoscale Materials: Applications in Environmental Remediation brings together the latest developments in the utilization of advanced nanoadsorbents in wastewater treatment, pollution control, removal and remediation, gas separation and other environmental applications. The book begins by providing an overview of absorption, adsorbents and nanoadsorbents, introducing properties, classification, synthesis, characterization, enhancement of adsorption capabilities, principles and advantages and disadvantages of nanoadsorbents. Other sections cover the preparation of advanced nanoadsorbents based on specific materials for wastewater treatment, including adsorbents incorporating carbon nanotubes, graphene and graphene oxide, carbon dots and fullerene, polymer nanocomposites, metal oxides, nanoclay, nanofillers, and filtration membranes. Final sections examine the role of nanoadsorbents in broader environmental applications, including areas such as pollution control and removal and gas separation. Finally, other important considerations are studied, including toxicity and health impact, ecotoxicological effects, commercialization and economic issues, challenges and research gaps, trends, and future opportunities. Provides in-depth coverage of nanoadsorbents for a range of targeted environmental applications Covers, in detail, fundamentals such as synthesis methods, characterization and inhibition mechanisms Addresses key areas such as toxicity, health impact, research gaps, trends and commercialization
