Download or read book Adsorption of Organics from Aqueous Solutions by Polymeric Resins written by Yoram Cohen and published by . This book was released on 1991* with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Removal of Organics from Aqueous Solutions Using Polymeric Resins written by Gloria Melinda Gusler and published by . This book was released on 1994 with total page 1504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Removal of Emerging Contaminants from Aqueous Solutions by Using Polymeric Resins written by Dan Liu and published by . This book was released on 2011 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: The emerging contaminants (ECs) such as estrogen hormones, perfluorinated compounds (PFCs), bisphenol A (BPA) and 1, 4-dioxane have been detected in natural water bodies at a noticeable level worldwide. The presence of ECs in the aquatic environment can pose potential threats to aquatic organisms as well as human world. Ion-exchange is a highly efficient technology for the removal of heavy metal ions and natural organic materials (NOMs) due to the nature of exchanging similar charged ions. However, this technology has not been explored for removing ECs. In this study, four categories of ECs: estrogen hormones (12), perfluorinated compounds (10), bisphenol A and 1, 4-dioxane were used as model contaminants. The adsorption of each category of ECs onto various types of polymeric resins (MN100, MN200, A530E, A532E and C115) was investigated. The removal of ECs was tested under batch and column mode. The effects of pH, resin dosage, and contact time on the removal of ECs were studied in batch mode; isotherm and kinetics models were applied to fit the experimental data. Column experiments were conducted to verify the practicability of the polymeric resins. Adsorption results have shown that both MN100 and MN200 resins could efficiently remove estrogen hormones mixture (more than 95%), and bisphenol A (more than 80%) with the initial concentration of 100 ìg/L; A532E and A530E could remove perfuorinated compounds mixture (more than 99%) with the initial concentration of 100 ìg/L. As pH increased from 9 to 11, the adsorption capacity onto polymeric resins decreased dramatically for estrogen hormones such as 17á-ethinylestradiol, estriol, 17â-estradiol, 17á-estradiol, estrone, 17á-dihydroequilin and equilin as well as bisphenol A. The adsorption of estrogen hormones and bisphenol A onto MN100 and MN200 resins reached the equilibrium within 24 hours, whereas the adsorption of perfluorinated compounds onto A532E and A530E reached the equilibrium within 8 hours. It was also observed that the adsorption of PFCs largely depends on the C-C chain length. PFCs with longer chain yielded lower adsorption efficiency onto the ion-exchange resins A532E and A530E. Adding salinity decreased the first-order rate constants for the adsorption of bisphenol A onto MN100 and MN200 resins. Fixed-bed column experiment results with estrogen hormones mixtures confirmed that the polymeric resins were good candidates in the removal of estrogen hormones. Trimegestone was the first compound detected in the effluent in the column test while 17â-estradiol, 17á-estradiol were the last. 80% of the exhausted resins (MN100 and MN200) by bisphenol A were regenerated by using pure methanol as regeneration solution. Polymeric resins were not effectively removing 1, 4-dioxane from the aqueous solution.
Download or read book Adsorption From Aqueous Solutions written by P.H. Tewari and published by Springer. This book was released on 1981-12 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adsorption from aqueous solutions is important in many tech nological areas, like water purification, mineral beneficiation, soil conservation, detergency, and many areas of biology. Recently, adsorption of radionuclides from aqueous solutions has become the focus of attention in assessing the movement of radionuclides through a geologic medium from underground radioactive waste repositor ies. This volume provides a multidisciplinary overview of current work in the area of adsorption from aqueous solutions, and reviews the progress that has been made in the theoretical models for assessing adsorption. Adsorption of heavy metal ions and the effect of complex formation is treated extensively, as are the effects of surface chemical properties of the adsorbent, solution pH, and thermodynamic parameters important in the adsorption process. Adsorption of pesticides and organic polymeric species on different adsorbents are included and implications of adsorption of ions on dental materials are discussed. Also included are studies of the adsorption of radionuclides by geologic media under environmental conditions. The study of the chemical nature of the adsorbed species at the surface by X-ray photoelectron spectro sc.opy which often provides mechanistic information for the adsorption process is included for adsorbed metal ions on clay and mineral surfaces.
Download or read book Polymeric Adsorbents written by Ahad Ghaemi and published by Elsevier. This book was released on 2023-09-08 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymeric Adsorbents: Characterization, Properties, Applications, and Modelling offers comprehensive information on the various types of polymeric adsorbents and uses, enabling the reader to understand, identify and prepare adsorbents with the required structure and properties for a range of key industrial applications. The book presents the various types of polymeric adsorbents and their characteristics, focuses on physicochemical properties, synthesis methods, functionalization, and composites and hybrid materials, and highlights key application areas, including gas adsorption, heavy metal removal, hazardous dye removal, and adsorption of antibiotics. Finally, the book provides detailed guidance on modeling of polymeric adsorbent behavior and molecular dynamic (MD) simulation. This is a valuable resource to researchers and advanced students across polymer science, chemistry, materials science, engineering, environmental science, and engineers, scientists, and R&D professionals with an interest in polymeric adsorbents for industrial applications. - Covers a full range of polymeric adsorbent types, as well as composites and hybrid adsorbents - Explains chemistry, characterization, functionalization and methods for improving properties - Explores a range of applications supported by detailed coverage of simulation and modeling
Download or read book Polymeric Materials for Clean Water written by Rasel Das and published by Springer. This book was released on 2018-09-27 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives an overview of recent developments in the synthesis of macromolecules for water purification applications. The preparation of these polymers from organic and inorganic starting materials is described. Important post-polymerization modifications, introduction of functional groups and production of supramolecular assemblies and nanomaterials are shown. The synthesized materials are presented with their interesting properties and broad areas of applications. A comprehensive discussion about the engineering aspect and the usage in water treatment as well as environmental issues is given. The wide variety of materials and their synthesis techniques will encourage scientists in developing new synthesis routes and materials, whereby engineers will be encouraged to find new possible applications.
Download or read book Adsorption of Organic Compounds Onto Solids from Aqueous Solutions written by James P. Wightman and published by . This book was released on 1971 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Separation of Polar Organics from Aqueous Solutions by the Methods of Liquid Extraction and Adsorption Onto Activated Carbons written by Curtis Lee Munson and published by . This book was released on 1985 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Advances in Adsorption Processes for Environmental Protection and Security written by José Paulo Mota and published by Springer. This book was released on 2007-10-24 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the Workshop was to share knowledge on the latest advances on adsorption processes for environmental security and protection, as well as to disseminate the main results and achievements of recent NATO Science-for-Peace projects on environmental security and protection. This volume provides a comprehensive report on adsorption and colloids phenomena, carbon materials and adsorbents for various industrial applications, ecological safety and antiterrorism.
Download or read book Aqueous Phase Adsorption of Priority Pollutants Onto Polymeric Resins written by Thomas Edward Browne and published by . This book was released on 1993 with total page 1182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Green Materials for Wastewater Treatment written by Mu. Naushad and published by Springer. This book was released on 2019-07-03 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews health hazards associated with wastewater use and water pollutants. Chapters present applications of green materials made of agricultural waste, activated carbon and magnetic materials for wastewater treatment. The removal of toxic metals using algal biomass and the removal of toxic dyes using chitosan composite materials are also discussed. The book includes reviews on the removal of phenols, pesticides, and on the use of ionic liquid-modified activated carbon for the treatment of textile wastewater.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1990 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hypercrosslinked Polymeric Networks and Adsorbing Materials written by Vadim Davankov and published by Elsevier. This book was released on 2010-10-06 with total page 673 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hypercrosslinked network polymers present a new class of polymeric materials with very wide application possibilities, including adsorption technology, ion exchange, HPLC, analytical chemistry, nanotechnology (nanocomposites), medical polymers - First book describing the theory, practice of preparation and use of polymeric adsorbing materials with the emphasis on new hypercrosslinked polystyrene-type polymers - Written by the originators of the concept of hypercrosslinked polymers - Complex phenomena are explained by appealing to common sense, analogies and well-known effects, rather than complex mathematical treatment and computer modelling - Reviews many Russian, German and even Czech language publications - Contains numerous experimental data in the form of Figures and Tables
Download or read book Development in Wastewater Treatment Research and Processes written by Maulin P. Shah and published by Elsevier. This book was released on 2021-10-16 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Development in Waste Water Treatment Research and Processes: Innovative Microbe-Based Applications for Removal of Chemicals and Metals in Wastewater Treatment Plants focuses on the exploitation of various biological treatment technologies and their use to treat toxic and hazardous contaminants present in industrial effluent and restore the contaminated sites, a topic which lacks discussion in existing titles on the global market. This book encompasses advanced technologies and updated information as well as future directions for young researchers and scientists who are working in the field of wastewater treatment or effluent treatment plants and biodegradation of environmental contaminants for environmental safety and sustainable development. - Provides wide information to readers on state-of-the-art applications of microbes for wastewater/industrial effluent treatment and environmental protection - Summarizes our current knowledge on the use of various microbes, even the use of dead biomass for dye decolorization and degradation - Explores different aspects of biological methods for contaminant removal and better advanced biotechnological applications
Download or read book Conducting Polymers for Electrochemically Mediated Separations written by Yinying Ren and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many conventional separation technologies are limited by high energy costs, generation of chemical wastes, and lack of molecular selectivity. This thesis is motivated to develop novel separation techniques that overcome the aforementioned drawbacks for the separation of neutral organic compounds from aqueous solutions. Adsorption is one of the most widely adopted technologies for the intended task. Polymeric adsorbents have shown great potential for replacing activated carbon for removing a wide range of toxic organic pollutants from wastewater streams since they do not suffer from costly regeneration needs and high attrition rates. An electrochemically regenerable polymeric adsorbent based on an intrinsically conducting polymer, polypyrrole (PPy), doped with anionic surfactant dioctylsulfosuccinate (AOT), denoted PPy(AOT), is developed for mitigating organic pollutants in wastewater. Highly porous PPy(AOT) can be synthesized using a facile electropolymerization protocol, and has an adsorption capacity of greater than 570 mg pollutant/g polymer in its superhydrophobic oxidized state. The hydrophobicity of PPy(AOT) and hence its affinity for organics can be modulated electrochemically through the reorientation of AOT dopants, which can be exploited to regenerate the adsorbent and use it repeatedly for multiple adsorption/desorption cycles. A combined density functional theory and molecular dynamics approach was used to study the interactions between the adsorbed organic molecules and the surfactant-doped conducting polymer adsorbent, and to elucidate the mechanism of electrochemical modulations of hydrophobicity and affinity of the sorbent. The AOT doped polypyrrole (PPy(AOT)) and a polyvinylferrocene/polypyrrole hybrid (PVF-PPy) have complementary hydrophobicity tunability in response to electrochemical modulations: both materials are hydrophobic in their respective neutral states, exhibiting high affinities towards organics; upon application of a mild potential to oxidize PVF-PPy and reduce PPy(AOT), they can be simultaneously rendered hydrophilic, thereby driving desorption of organics and regeneration of the materials. Therefore, the two materials form an attractive pair for an asymmetric electrode system to work in tandem. The asymmetric system can be used in a cyclic fashion, through repeated application of a small potential (close to 0 V) to program the capture of organics from a large volume of feed solution, and a higher potential (above 0.9 V) to stimulate the release of the adsorbed organics into a small volume of desorption solution. The redox-responsive electrode system can be applied for remediation of organic pollution in wastewater as well as recovery of organic products from reaction mixtures. The asymmetric configuration has multiple benefits, including suppression of water parasitic reactions, high energetic efficiency, and selectivity for target organic species. The ability to modulate the hydrophobicity of conducting polymers and physicochemical insights about the material are significant for developing broader applications in drug delivery, sensing, self-cleaning surfaces, microfluidics, and artificial muscles.
Download or read book Polymer Composites From Computational to Experimental Aspects written by Sushanta K. Sethi and published by Springer Nature. This book was released on with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organic Coatings written by Zeno W. Wicks, Jr. and published by John Wiley & Sons. This book was released on 2007-03-15 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt: Third Edition brings acclaimed textthoroughly up to date with the latestorganic coatings technology Organic Coatings, Third Edition is an unparalleled reference and text for organic coatings technology and its myriad applications. It begins with discussions of key principles of coatings, then thoroughly explores raw materials, physical concepts, formulations, and applications. Scientists, engineers, and paint formulators all gain a deeper understanding of the principles underlying the technology and learn how to use these principles in the development, production, and application of organic coatings. The four authors, all leading industry experts, offer a unique approach to the topic that correlates the empirical technology of coatings with the underlying science. This Third Edition has been completely revised and updated to reflect numerous changes in the field, including changes driven by increasing pressure to lower VOC emissions, reduce energy requirements, and eliminate potential health hazards from organic coatings components. In addition, the authors have developed new material to make the text more accessible for scientists and engineers first entering the field, as well as for students taking coatings courses. At the same time, the hallmarks that distinguished the two previous editions have been retained, including: Troubleshooting guidance for coatings scientists and technologists Clear differentiation between established principles and hypotheses requiring further research Precise definitions of coatings industry terminology Extensive references to the current literature Hundreds of figures that help readers visualize key concepts and techniques Whether you are just entering the field of organic coatings and need a broad overview or you are an experienced professional who needs a sophisticated reference, you can depend on Organic Coatings to give you the information and answers you need.
