Download or read book Experimental Simulation Studies of Fluid Flow and Mass Transfer in Spacer filled Channels in Spiral Wound Modules written by Jörn Schwinge and published by . This book was released on 2003 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanofiltration 2 Volume Set written by Andrea Iris Schäfer and published by John Wiley & Sons. This book was released on 2021-08-09 with total page 1267 pages. Available in PDF, EPUB and Kindle. Book excerpt: An updated guide to the growing field of nanofiltration including fundamental principles, important industrial applications as well as novel materials With contributions from an international panel of experts, the revised second edition of Nanofiltration contains a comprehensive overview of this growing field. The book covers the basic principles of nanofiltration including the design and characterizations of nanofiltration membranes. The expert contributors highlight the broad ranges of industrial applications including water treatment, food, pulp and paper, and textiles. The book explores photocatalytic nanofiltration reactors, organic solvent nanofiltration, as well as nanofiltration in metal and acid recovery. In addition, information on the most recent developments in the field are examined including nanofiltration retentate treatment and renewable energy-powered nanofiltration. The authors also consider the future of nanofiltration materials such as carbon- as well as polymer-based materials. This important book: Explores the fast growing field of the membrane process of nanofiltration Examines the rapidly expanding industrial sector's use of membranes for water purification Covers the most important industrial applications with a strong focus on water treatment Contains a section on new membrane materials, including carbon-based and polymer-based materials, as well as information on artificial ion and water channels as biomimetic membranes Written for scientists and engineers in the fields of chemistry, environment, food and materials, the second edition of Nanofiltration provides a comprehensive overview of the field, outlines the principles of the technology, explores the industrial applications, and discusses new materials.
Download or read book Direct Numerical Simulation of Flow and Mass Transfer in Spacer filled Channels written by Alireza Mahdavifar and published by . This book was released on 2010 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spacer-filled channels are employed in membrane modules in many industrial applications where feed-flow spacers (employed to separate membrane sheets and create flow channels) tend to enhance mass transport characteristics, possibly mitigating fouling and concentration polarization phenomena. In this work direct numerical simulation was performed for the flow in the spacer-filled channels to obtain a better understanding of fluid flow and mass transfer phenomena in these channels. A solute with a Schmidt number of 1 at Reynolds numbers of 300, 500 and 800 (based on the bulk velocity and spacer diameter) was considered. The effect of spacer location was also studied for three different configurations, spacer at the centre of the channel, at off-centre location, and attached to the wall. Instantaneous velocity fields and flow structures such as separation of boundary layer on the walls and on the cylinder, eddies on the walls, recirculation regions and vortex shedding were investigated. A Fourier analysis was carried out on the time series velocity data. Using this analysis the Strouhal number was calculated and the development of the flow towards a broader turbulent state at higher Reynolds number was captured. Other statistical characteristics such as time-averaged velocities and wall shear rates are obtained and discussed. The average pressure loss which represents the operation cost of membrane modules was calculated for the channels and found to be highest for spacer at the centre of the channel and lowest for spacer attached to the wall. Scalar transport equation is directly solved along with Navier-Stokes equation to get the concentration field. Local Sherwood number is obtained on the walls and the relationship between shear stress, vortex shedding, and mass transfer enhancement was explored. The overall Sherwood number and Stanton number of the channels, which indicate the mass transfer performance of the channels, are obtained. It was observed that as spacer approaches the wall mass transfer rate is decreasing.
Download or read book Membrane Distillation in Desalination written by Farid Benyahia and published by CRC Press. This book was released on 2019-05-30 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Membrane-Distillation in Desalination is an attempt to provide the latest knowledge, state of the art and demystify outstanding issues that delay the deployment of the technology on a large scale. It includes new updates and comprehensive coverage of the fundamentals of membrane distillation technology and explains the energy advantage of membrane distillation for desalination when compared to traditional techniques such as thermal or reverse osmosis. The book includes the latest pilot test results from around the world on membrane distillation desalination.
Download or read book Membranes written by Alfredo Maciel-Cerda and published by Springer. This book was released on 2016-11-09 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes current advances in the research on membranes and applications in industry, groundwater, and desalination processes. Topics range from synthesis of new polymers to preparation of membranes using new water treatments for effluents, graphite membranes, development of polymeric and ceramic materials for production of membranes intended to separate gases and liquids, and liquid-liquid phases. The authors include materials used to produce catalytic membranes for polymer synthesis. The book also details theoretical approaches and simulation of membrane processes and parameters and design.
Download or read book Biomimetic Membranes for Sensor and Separation Applications written by Claus Hélix-Nielsen and published by Springer Science & Business Media. This book was released on 2012-01-02 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the possibilities and challenges in mimicking biological membranes and creating membrane-based sensor and separation devices. Recent advances in developing biomimetic membranes for technological applications will be presented with focus on the use of integral membrane protein mediated transport for sensing and separation. It describes the fundamentals of biosensing as well as separation and shows how the two processes are working in a cooperative manner in biological systems. Biomimetics is a truly cross-disciplinary approach and this is exemplified using the process of forward osmosis will be presented as an illustration of how advances in membrane technology may be directly stimulated by an increased understanding of biological membrane transport. In the development of a biomimetic sensor/separation technology, both channels (ion and water channels) and carriers (transporters) are important. An ideal sensor/separation device requires the supporting biomimetic matrix to be virtually impermeable to anything but the solute in question. In practice, however, a biomimetic support matrix will generally have finite permeabilities to water, electrolytes, and non-electrolytes. These non-protein mediated membrane transport contributions will be presented and the implications for biomimetic device construction will be discussed. New developments in our understanding of the reciprocal coupling between the material properties of the biomimetic matrix and the embedded proteins will be presented and strategies for inducing biomimetic matrix stability will be discussed. Once reconstituted in its final host biomimetic matrix the protein stability also needs to be maintained and controlled. Beta-barrel proteins exemplified by the E. Coli outer membrane channels or small peptides are inherently more stable than alpha-helical bundle proteins which may require additional stabilizing modifications. The challenges associated with insertion and stabilization of alpha-helical bundle proteins including many carriers and ligand and voltage gated ion (and water) channels will be discussed and exemplified using the aquaporin protein. Many biomimetic membrane applications require that the final device can be used in the macroscopic realm. Thus a biomimetic separation device must have the ability to process hundred of liters of permeate in hours – effectively demanding square-meter size membranes. Scalability is a general issue for all nano-inspired technology developments and will be addressed here in the context biomimetic membrane array fabrication. Finally a robust working biomimetic device based on membrane transport must be encapsulated and protected yet allowing massive transport though the encapsulation material. This challenge will be discussed using microfluidic design strategies as examples of how to use microfluidic systems to create and encapsulate biomimetic membranes. The book provides an overview of what is known in the field, where additional research is needed, and where the field is heading.
Download or read book Chemical Synergies written by Nuno A.G. Bandeira and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-05-07 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives an overview of recent integrated and inter-disciplinary approaches between chemical experiment and theory in a variety of fields, from polymer science to materials chemistry and ranging from the design of tailored properties to catalysis and reactivity, building on the well-established success of Density Functional Theory as the foremost quantum chemical method to provide qualitative and quantitative interpretation of results from the chemical laboratory. The combination of several characterization techniques with an understanding at the molecular level of chemical and physical phenomena are the main focal point of the subject matter.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2004 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Hydroinformatics SimHydro 2023 Volume 2 written by Philippe Gourbesville and published by Springer Nature. This book was released on with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 60 Years of the Loeb Sourirajan Membrane written by Hui-Hsin Tseng and published by Elsevier. This book was released on 2022-04-02 with total page 695 pages. Available in PDF, EPUB and Kindle. Book excerpt: 60 Years of the Loeb-Sourirajan Membrane: Principles, New Materials, Modelling, Characterization and Applications bring forth theoretical advances, novel characterization techniques, materials development, advanced treatment processes, and emerging applications of membrane-based technologies. The trigger for writing this book is the 2020, 60th anniversary of the first asymmetric polymeric membrane invented by Dr. Sidney Loeb and Dr. Srinivasa Sourirajan (University of California, Los Angeles, USA) on the breakthrough discovery of the semipermeable membrane for seawater desalination. The book places emphasis on the advances of organic and inorganic membranes in different fields, covering not only the primary application of membranes for water and wastewater treatment but also other applications dealing with energy conversion and storage, organic solvent purification, gas separation, and biomedical processes. Provides a comprehensive overview on membrane technologies from the fundamental knowledge of fabrication principle and separation mechanisms to a wide range of applications, including new/emerging processes Covers the use of new/advanced materials (both organic and inorganic), novel membrane fabrication techniques, and cutting-edge characterization methods for the development of advanced membranes Includes advances in computational modeling and simulation of membrane processes
Download or read book Biofouling of Membrane Systems written by Szilárd Bucs and published by IWA Publishing. This book was released on 2018-09-15 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of the uneven distribution of fresh water in time and space and the increasing human population, a large number of regions are experiencing water scarcity and stress. Membrane-based desalination technologies like reverse osmosis have the potential to solve the fresh water crisis in coastal areas. However, in many cases membrane performance is restricted by biofouling. Biofouling of Membrane Systems gives a comprehensive overview on the state of the art strategies to control biofouling in spiral wound reverse osmosis membrane systems and point to possible future research directions. Despite the fact that much research and development has been done to overcome biofouling in spiral wound membrane systems used for water treatment, biofouling is still a major practical problem causing performance decline and increased energy demand. Biofouling of Membrane Systems is divided into three sections including modelling and numerical analysis, non-destructive characterization and feed spacer geometry optimization. It focuses on the development of biomass in the feed channel of the membrane module and its effect on pressure drop and hydrodynamics. This book can be used to develop an integral strategy to control biofouling in spiral wound membrane systems. An overview of several potential complementary approaches to solve biofouling is given and an integrated approach for biofouling control and feed spacer design is proposed.
Download or read book Faster Mass Transfer in Small Channels written by Abhishek Shrivastava and published by . This book was released on 2007 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Membrane Separations written by Anil Kumar Pabby and published by CRC Press. This book was released on 2015-04-09 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Membrane Separations: Chemical, Pharmaceutical, Food, and Biotechnological Applications, Second Edition provides detailed information on membrane separation technologies from an international team of experts. The handbook fills an important gap in the current literature by providing a comprehensive discussion of membrane application
Download or read book Osmotically Driven Membrane Processes written by Muharrem Ince and published by BoD – Books on Demand. This book was released on 2022-02-16 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Osmotically Driven Membrane Processes provides an overview of membrane systems and separation processes, recent trends in membranes and membrane processes, and advancements in osmotically driven membrane systems. It focuses on recent advances in monitoring and controlling wastewater using membrane technologies. It explains and clarifies important research studies as well as discusses advancements in the field of organic-inorganic pollution.
Download or read book Desalination written by Taner Yonar and published by BoD – Books on Demand. This book was released on 2017-08-30 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing population and environmental pollution are the main stress on freshwater sources. On the other hand, freshwater needs of human being increase dramatically every day. From agriculture to industry and from household to recreation, we need freshwater. In the near future, saltwater and brackish water bodies may be the main source of freshwater for our planet. Desalination phenomena are now being implemented with increasing interest. The book on desalination provides a valuable scientific contribution on freshwater production from saltwater sources. In this book, necessary theoretical knowledge and experimental results of different desalination processes are presented.
Download or read book Reverse Osmosis Process written by and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flow and Heat or Mass Transfer in the Chemical Process Industry written by Dimitrios V. Papavassiliou and published by MDPI. This book was released on 2018-09-28 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Flow and Heat or Mass Transfer in the Chemical Process Industry" that was published in Fluids
