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Recovery Efficency And Storage Effects Of Ion Exchange Resins Under Laboratory Conditions
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Book Synopsis Recovery efficency and storage effects of ion exchange resins under laboratory conditions by :
Download or read book Recovery efficency and storage effects of ion exchange resins under laboratory conditions written by and published by Cuvillier Verlag. This book was released on 2014-09-04 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ion exchangers are used for isotope separation in nuclear industry and for purification of water. The advantages of ion exchange technology consist of the possibility to remove highly diluted contaminants and their insensitivity to variations in flow and concentration. Ion exchange resins are chemically active and highly stable in their physical and chemical structure. Due to these specific properties, they will not contaminate products. The main objectives of this study were to determine the background contamination of commercially available ion exchange resins, effective pre-treatment (washing) methods, efficiency of resins in capturing various nutrients applied and the best methods for the storage of the resins. Resin rinsing with 1.0 M NaCl was highly effective, although it did not eliminate the problem of high K+ contamination in the resins. Pre-treatment with 1 M NaCl had no major effect on the absorption behaviour of NO3-. At the 20% saturation level, resin washing and fast flow of the nutrient solution certainly reduces the absorption capacity of the ion exchange resins. However, against our expectations at 80% saturation, the combined effects of washing and slow flow of nutrients increased the sorption capacity of ion exchange resins to a certain extent. The analysis of the leachate solution revealed that NH4+ and NO3- were below detection limit in the leachate solution suggesting the complete absorption of these ions by ion exchange resins irrespective of the applied nutrient concentration. The washing with 1.0 M NaCl solution seems to be the best of our treatments but there are still additional impurities from exchange resins being responsible for excessive recovery rate. Better recovery of nutrients in refrigerator treatments compared to air dry, oven dry and deep freezer recommends that this method is the best storage treatment.
Book Synopsis Initial Evaluation of Two Organic Resins and Their Ion Exchange Column Performance for the Recovery of Cesium from Hanford Alkaline Wastes by : Lane A. Bray
Download or read book Initial Evaluation of Two Organic Resins and Their Ion Exchange Column Performance for the Recovery of Cesium from Hanford Alkaline Wastes written by Lane A. Bray and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ion Exchange Resins by : Robert Kunin
Download or read book Ion Exchange Resins written by Robert Kunin and published by . This book was released on 1958 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Storage and Aging Effects on Spherical Resorcinol-Formaldehyde Resin Ion Exchange Performance by :
Download or read book Storage and Aging Effects on Spherical Resorcinol-Formaldehyde Resin Ion Exchange Performance written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Bechtel National, Inc. (BNI) is evaluating the alternate Cs ion exchanger, spherical resorcinol-formaldehyde (RF), for use in the River Protection Project-Waste Treatment Plant (RPP-WTP).() Previous test activities with spherical RF indicate that it has adequate capacity, selectivity, and kinetics to perform in the plant according to the flowsheet needs. It appears to have better elution and hydraulic properties than the existing alternatives: ground-gel RF and SuperLig® 644 (SL 644).() To date, the spherical RF performance testing has been conducted on freshly manufactured resin (within ~2 months of manufacture). The ion exchange resins will be manufactured and shipped to the WTP up to 1 year before being used in the plant. Changes in the resin properties during storage could reduce the capacity of the resin to remove Cs from low-activity waste solutions. Active sites on organic SL-644 resin have been shown to degrade during storage (Arm et al. 2004). Additional testing was needed to study the effects of storage conditions and aging on spherical RF ion exchange performance. Variables that could have a significant impact on ion exchange resins during storage include storage temperature, medium, and time. Battelle--Pacific Northwest Division (PNWD) was contracted to test the effects of various storage conditions on spherical RF resin. Data obtained from the testing will be used by the WTP operations to provide direction for suitable storage conditions and manage the spherical RF resin stock. Storage test conditions included wet and dry resin configurations under nitrogen at three temperatures. Work was initially conducted under contract number 24590-101-TSA-W000-00004 satisfying the needs defined in Appendix C of the Research and Technology Plan() TSS A-219 to evaluate the impact of storage conditions on RF resin performance. In February 2007, the contract mechanism was switched to Pacific Northwest National Laboratory (PNNL) Operating Contract DE-AC05-76RL01830.
Book Synopsis Ion Exchange Technology by : F. C. Nachod
Download or read book Ion Exchange Technology written by F. C. Nachod and published by Academic Press. This book was released on 2013-09-03 with total page 671 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ion Exchange Technology serves both as a reference and as a text book for technologists and engineers. While the present book is based mainly on ion exchange as practiced in the United States, the object was to produce a generally useful book which would deal with the fundamental problems, techniques, and operations of ion exchange such as mass transfer, equipment design, properties of ion exchange resins, and deionization. Also include are chapters on two types of applications—those that are used industrially on a large scale, and those which have not yet reached large-scale use but have impressive potentialities. In both the fundamental and applied chapters it was deemed necessary that the successful aspects of ion exchange operation be included. In addition, it was equally important to describe the problems and the inherent complexities encountered in the setting up of an ion exchange process. Wherever possible the economic factors were described realistically.
Book Synopsis A Comprehensive Method of Ion Exchange Resins Regeneration and Its Optimization for Water Treatment by : Sameer Al-Asheh
Download or read book A Comprehensive Method of Ion Exchange Resins Regeneration and Its Optimization for Water Treatment written by Sameer Al-Asheh and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ion exchange membranes, specifically resin technology, lie at the heart of electrolytically conductive systems used in the treatment of wastewater. This chapter deals with ion exchange deionization and the effect of resin amount as well as the concentration of acid and base on the product conductivity. The strong acidic cation polymeric exchanger resin is commercially called MERCK 104765 cation exchanger IV with capacity greater than 3.2 mmol/ml, while the strong basic anion polymeric exchanger resin is commercially called MERCK 104767 anion exchanger III with capacities greater than 1.0 mmol/ml. Water conductivity, as an indicator of regeneration efficiency, was monitored over time at the different conditions and scenario. In general, it was observed that the conductivity decreases with time until one point is reached and then starts to increase as a result of resin saturation. It was also noticed that the lowest conductivity is achieved when using 1-vol% NaOH and 5-vol% HCl in the cathodic and anodic resin tubes, respectively, and that water conductivity increases with the increase in the amount of water being used. The amount of resin significantly impacts the deionization efficiency; more ions are removed as the amount of resin increases.
Book Synopsis Ion-Exchange Membrane Separation Processes by : H Strathmann
Download or read book Ion-Exchange Membrane Separation Processes written by H Strathmann and published by Elsevier. This book was released on 2004-01-29 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, membranes and membrane processes are used as efficient tools for the separation of liquid mixtures or gases in the chemical and biomedical industry, in water desalination and wastewater purification. Despite the fact that various membrane processes, like reverse osmosis, are described in great detail in a number of books, processes involving ion-exchange membranes are only described in a fragmented way in scientific journals and patents; even though large industrial applications, like electrodialysis, have been around for over half a century. Therefore, this book is emphasizing on the most relevant aspects of ion-exchange membranes. This book provides a comprehensive overview of ion-exchange membrane separation processes covering the fundamentals as well as recent developments of the different products and processes and their applications. The audience for this book is heterogeneous, as it includes plant managers and process engineers as well as research scientists and graduate students. The separate chapters are based on different topics. The first chapter describes the relevant Electromembrane processes in a general overview. The second chapter explains thermodynamic and physicochemical fundamentals. The third chapter gives information about ion-exchange membrane preparation techniques, while the fourth and fifth chapter discusses the processes as unit operations giving examples for the design of specific plants. First work on the principles and applications of electrodialysis and related separation processes Presently no other comprehensive work that can serve as both reference work and text book is available Book is suited for teaching students and as source for detailed information
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-06 with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Applications of Ion Exchange Materials in Biomedical Industries by : Inamuddin
Download or read book Applications of Ion Exchange Materials in Biomedical Industries written by Inamuddin and published by Springer. This book was released on 2019-01-30 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the applications of ion-exchange materials in the biomedical industries. It includes topics related to the application of ion exchange chromatography in determination, extraction and separation of various compounds such as amino acids, morphine, antibiotics, nucleotides, penicillin and many more. This title is a highly valuable source of knowledge on ion-exchange materials and their applications suitable for postgraduate students and researchers but also to industrial R&D specialists in chemistry, chemical, and biochemical technology. Additionally, this book will provide an in-depth knowledge of ion-exchange column and operations suitable for engineers and industrialists.
Download or read book Ion Exchange written by C E Harland and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ion Exchange, 2nd Edition is a totally revised and updated version of the highly popular Monograph for Teachers, first published by The Royal Society of Chemistry in 1975. It covers the practical application of ion exchange and the synthesis of organic ion exchange resins, which have spanned nearly 60 years of development since the pioneering work of Adams and Holmes in 1935. This book covers the theory, development, and application in considerable detail and describes the history of development of ion exchange materials and the advances in their utilization in industrial processes. Key applications in such areas as water purification, hydrometallurgy, and chromatography are described and supported by chapters on the related scientific fundamentals governing equilibria and kinetics of ion exchange. Twenty-two experiments using inexpensive equipment are detailed, which not only complement a chapter dedicated to the characterization of organic exchangers, but also serve to illustrate several other pure and applied principles related to ion exchange phenomena. It is anticipated that the unique inclusion of experiments and the broad coverage of the whole text should appeal to a wide readership and offer particular relevance to practitioners in schools, colleges, and industry.
Book Synopsis EPA Publications Bibliography by : United States. Environmental Protection Agency
Download or read book EPA Publications Bibliography written by United States. Environmental Protection Agency and published by . This book was released on 1994 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ion Exchange Technology I by : Inamuddin Dr.
Download or read book Ion Exchange Technology I written by Inamuddin Dr. and published by Springer Science & Business Media. This book was released on 2012-06-02 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ion-exchange Technology I: Theory and Materials describes the theoretical principles of ion-exchange processes. More specifically, this volume focuses on the synthesis, characterization, and modelling of ion-exchange materials and their associated kinetics and equilibria. This title is a highly valuable source not only to postgraduate students and researchers but also to industrial R&D specialists in chemistry, chemical, and biochemical technology as well as to engineers and industrialists.
Book Synopsis Purification of Laboratory Chemicals by : W.L.F. Armarego
Download or read book Purification of Laboratory Chemicals written by W.L.F. Armarego and published by Elsevier. This book was released on 2003-03-07 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now in its fifth edition, the book has been updated to include more detailed descriptions of new or more commonly used techniques since the last edition as well as remove those that are no longer used, procedures which have been developed recently, ionization constants (pKa values) and also more detail about the trivial names of compounds.In addition to having two general chapters on purification procedures, this book provides details of the physical properties and purification procedures, taken from literature, of a very extensive number of organic, inorganic and biochemical compounds which are commercially available. This is the only complete source that covers the purification of laboratory chemicals that are commercially available in this manner and format. * Complete update of this valuable, well-known reference* Provides purification procedures of commercially available chemicals and biochemicals* Includes an extremely useful compilation of ionisation constants
Book Synopsis Mass Transfer and Kinetics of Ion Exchange by : L. Liberti
Download or read book Mass Transfer and Kinetics of Ion Exchange written by L. Liberti and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: While ion-exchange processes were originally used for the treatment of very dilute solutions, many applications for the treatment of concentrated solu tions have been developed in recent years. In these situations, the mass transfer bottlenecks are located in the~, rather than the liquid phase. Therefore, the development of quantitative models for ion-exchange kinetics requires knowledge about the conductance characteristics of ions and solvent in the solid phase. A useful approach towards this aim is the study of trans port characteristics of these species, and of their interactions in solid ion exchange membranes. Many different transport processes and related phenomena can be observed in membrane-solution systems, e.g., ion migration, electroosmosis, diffusion arid self-diffusion, osmosis, hydraulic flow, hyperfiltration (reverse osmosis) or ultrafiltration, streaming potential and streaming current, and membrane potentials (also called "membrane concentration potentials"). It is important to correlate all these phenomena so as to avoid a very large number of unnec essary measurements. Such correlation is often possible [Meares, 1976] since all these phenomena are determined by the ease of migration of the different species across the membrane. Important correlations have been made and summar ized even before high-capacity ion-exchange membranes became commercially available [Sollner, 1950, 197iJ.
Book Synopsis Challenges in Delivery of Therapeutic Genomics and Proteomics by : Ambikanandan Misra
Download or read book Challenges in Delivery of Therapeutic Genomics and Proteomics written by Ambikanandan Misra and published by Elsevier. This book was released on 2010-09-09 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: Delivery of therapeutic proteomics and genomics represent an important area of drug delivery research. Genomics and proteomics approaches could be used to direct drug development processes by unearthing pathways involved in disease pathogenesis where intervention may be most successful. This book describes the basics of genomics and proteomics and highlights the various chemical, physical and biological approaches to protein and gene delivery. Covers a diverse array of topics from basic sciences to therapeutic applications of proteomics and genomics delivery Of interest to researchers in both academia and industry Highlights what’s currently known and where further research is needed
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Book Synopsis Reactive Polymers Fundamentals and Applications by : Johannes Karl Fink
Download or read book Reactive Polymers Fundamentals and Applications written by Johannes Karl Fink and published by William Andrew. This book was released on 2005-07-15 with total page 801 pages. Available in PDF, EPUB and Kindle. Book excerpt: Loaded with practical knowledge, Reactive Polymers Fundamentals and Applications: A Concise Guide to Industrial Polymers comprehensively presents the state-of-art of methods and materials for the formulation of polymeric resins. It is an indispensable tool for chemists, engineers, and manufacturers who use, formulate, and cure raw materials into final products. The text focuses on the chemical modification of properties during the final stage of part fabrication from plastics. Newer applications range from the small scale, such as dental fillings, to industrial processes for batch fabrication. The book covers resin groups in major use in industry and under active research and development.
