Download or read book Removal of Organic Contaminants from Water Using Microporous Hollow Fiber Membranes written by Amy Karen Zander and published by . This book was released on 1991 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Removal of Volatile to Semi volatile Organic Contaminants from Water Using Hollow Fiber Membrane Contactors and Catalytic Destruction of the Contaminants in the Gas Phase written by Shamsul Abedin Tarafder and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Removal of Organics from Water wastewater by Membrane Air stripping written by Hassan Mahmud and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Removal and recovery of volatile organic compounds (VOCs) from industrial wastewater and groundwater has become increasingly important due to stringent environmental regulations. Membrane air-stripping (MAS), using microporous polypropylene hollow fiber membrane modules, is one of the most promising processes for this purpose. The mass transfer of water and VOCs in MAS was studied using such a module, with air-flow on the lumen side and liquid cross-flow on the shell side. Chloroform, toluene and their mixture were used as model VOCs. Water transport experiments showed that mass transport was significantly decreased when the membrane had been in contact with water for prolonged periods. It was hypothesized the increased mass transfer resistance was due to water condensation in a fraction of the membrane pores. MAS of chloroform from aqueous solutions confirmed the additional mass transfer resistance with prior exposure to water. It was concluded that membrane pores were completely air-filled at the start and became partially wetted with water after prolonged period during the MAS process. The currently existing models are able to predict the performance only for either completely air-filled or liquid-filled pores. A modification of an existing model was proposed to take into account diffusion through the partially water-filled pores, as well as the partially air-filled pores. It was found that the model predictions agreed well with the experimental data. This hypothesis also provided a plausible explanation for the conflicting literature values of the membrane mass transfer resistance. It was also found that the membrane mass transfer resistance of the partially water-filled pores was two orders of magnitude higher than that of air-filled pores. Leveque's (1928) correlation overestimates the local mass transfer coefficient in a cylindrical tube at low velocities. A modification of this correlation has been proposed to predict the local air film mass transfer coefficient at low air velocities. The proposed correlation predictions matches well with the experimental data. The overall mass transfer coefficients of chloroform obtained in this work for liquid cross-flow on the shell side were up to twice as high as those reported in the literature, even though our experiments were carried out at much lower water and air velocities. However, the air pressure drop on the lumen side was significantly higher than that for system with air flow on the shell side. The overall mass transfer coefficients did not change when the initial chloroform concentration in the feed ranged from 81 to 908 ppm. MAS process was found effective in concentrating chloroform to more than 90% from a feed aqueous solution of ppm levels. The adsorption of toluene had strong detrimental impact on the performance of the polypropylene hollow fiber module. It is hypothesized that the toluene sorption resulted in swelling of the polypropylene fibers causing a reduction of the effective pore diameter and as a result of this, the toluene transport was substantially lower than expected. Due to this effect, the presence of toluene in the binary aqueous solution with chloroform significantly reduced the mass transport of chloroform compared to that with only chloroform. Henry's law constants were determined for individual chloroform and toluene as well as for their mixtures at 23°C and are reported. The effect of initial chloroform concentrations on Henry's law constant was experimentally examined.
Download or read book Hollow Fiber Stripping Analysis HFSA for Taste and Odor Quantification written by Amy K. Zander and published by American Water Works Association. This book was released on 1996 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Treatment Membrane Processes written by Lyonnaise des eaux-Dumez (Firm) and published by American Water Works Association. This book was released on 1996 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: With global demand for water in the 20th century expected to increase ten-fold, this work focuses on the membrane filtration issues for drinking water.
Download or read book Handbook of Membrane Separations written by Anil Kumar Pabby and published by CRC Press. This book was released on 2008-07-07 with total page 1210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Membrane Separations: Chemical, Pharmaceutical, and Biotechnological Applications provides detailed information on membrane separation technologies as they have evolved over the past decades. To provide a basic understanding of membrane technology, this book documents the developments dealing with these technologies. It explo
Download or read book Membrane Contactor Technology written by Mohammad Younas and published by John Wiley & Sons. This book was released on 2022-04-18 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: An eye-opening exploration of membrane contactors from a group of industry leaders In Membrane Contactor Technology: Water Treatment, Food Processing, Gas Separation, and Carbon Capture, an expert team of researchers delivers an up-to-date and insightful explanation of membrane contactor technology, including transport phenomena, design aspects, and diverse process applications. The book also includes explorations of membrane synthesis, process, and module design, as well as rarely discussed process modeling and simulation techniques. The authors discuss the technical and economic aspects of this increasingly important technology and examine the geometry, flow, energy and mass transport, and design aspects of membrane contactor modules. They also cover a wide range of application opportunities for this technology, from the materials sciences to process engineering. Membrane Contactor Technology also includes: A thorough introduction to the membrane contactor extraction process, including dispersion-free membrane extraction processes and supported liquid membrane processes Comprehensive explorations of membrane transport theory, including discussions of diffusional mass and heat transfer modeling, as well as numerical modeling In-depth examinations of module configuration and geometry, including design and flow configuration Practical discussions of modes or operation, including membrane distillation, osmotic evaporation, and forward osmosis Perfect for process engineers, biotechnologists, water chemists, and membrane scientists, Membrane Contactor Technology also belongs in the libraries of chemical engineers, polymer chemists, and chemists working in the environmental industry.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microporous Materials for Separation Membranes written by Xiaoqin Zou and published by John Wiley & Sons. This book was released on 2019-07-09 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to membrane separation based on a variety of porous materials with promising separation applications Microporous Materials for Separation Membranes offers an in-depth guide that explores microporous materials? potential for membrane applications. The authors?two experts on the topic?examine a wide range of porous materials that have application potential including: microporous silica, porous carbons, zeolites, metal-organic frameworks (MOFs), and porous organic frameworks (POFs). Comprehensive in scope, the book covers a broad range of topics on membrane separations such as: hydrogen recovery, carbon dioxide capture, air purification, hydrocarbon separation, pervaporation, and water treatment. In addition, this up-to-date resource explores the most recent materials for preparing microporous membranes and explores the most promising applications for industrial use. This important book: -Examines the use of microporous materials as membranes to perform with different gases and liquids -Offers an overview of the basic knowledge of membrane separation and an intense examination of separations -Describes the state-of-the-art of membrane separation with porous materials -Highlights the most promising applications of industrial interest Written for scientists working in the fields of membranes, gas and liquid, Microporous Materials for Separation Membranes offers a valuable guide to the potential of microporous materials for membrane applications.
Download or read book Inorganic Membranes Synthesis Characterization and Applications written by Reyes Mallada and published by Elsevier. This book was released on 2008-05-01 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approx.480 pagesApprox.480 pages
Download or read book Natural Organics Removal Using Membranes written by Andrea Schafer and published by CRC Press. This book was released on 2001-08-31 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural Organics Removal Using Membranes: Principles, Performance, and Cost provides a unique combination of important new data and operational parameters on the role of membranes in removing natural organic materials during water treatment. It examines and compares the three pressure-driven membrane processes of choice-ultrafiltration, microfiltra
Download or read book Journal of the New England Water Works Association written by New England Water Works Association and published by . This book was released on 1993 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Technologies and Trends written by Ravi K. Jain and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manuscript was made possible by the exceptional support provided by INSA (Institut National des Sciences Appliquees) Toulouse, the University of New Mexico and the University of Cincinnati College of Engineering. The authors, as listed in this book, took the time to prepare excellent manuscripts focusing on scientific and technical areas relevant to emerging environmental issues. These manuscripts were rigorously reviewed and refereed by scientists and engineers before inclusion in this book. An introductory chapter was prepared to summarize and integrate technical issues covered and the last chapter was written to present policy perspectives. The editors are most grateful to the contributors, sponsor organizations, and many colleagues who were kind enough to assist us in making this manuscript possible. Background information about the editors, principal authors and other contributor:s to this manuscript follows. Editors Professor Dr. Ravi K. Jain Associate Dean for Research and International Engineering College of Engineering University of Cincinnati Mail Location 0018 Cincinnati OH 45221-0018 U.S.A.
Download or read book Hollow Fiber Membrane Contactors written by Anil K. Pabby and published by CRC Press. This book was released on 2020-11-23 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book on hollow fiber contractors presents an up-to-date compilation of the latest developments and milestones in this membrane technology. Hollow Fiber Membrane Contactors: Module Fabrication, Design and Operation, and Potential Applications provides a comprehensive discussion of hollow fiber membrane applications (including a few case studies) in biotechnology, chemical, food, and nuclear engineering. The chapters in this book have been classified using the following, based on different ways of contacting fluids with each other: Gas-liquid contacting; Liquid-liquid contacting; Supported liquid membrane; Supported gas membrane; Fluid-fluid contacting. Other features include: Discusses using non-dispersive solvent extraction, hollow fiber strip dispersion, hollow fiber supported liquid membranes and role of process intensification in integrated use of these processes Provides technical and economic perspectives with several case studies related to specific scenarios Demonstrates module fabrication, design, operation and maintenance of hollow fiber contactors for different applications and performance Presents discussion on newer concepts like membrane emulsification, membrane nanoprecipitation, membrane crystallization and membrane condenser Special focus on emerging areas such as the use of hollow fiber contactor in back end of nuclear fuel cycle, membrane distillation, dehumidification of air and gas absorption and stripping Discusses theoretical analysis including computational modeling of different hollow fiber membrane processes, and presents emphasis on newly developed area of hollow fiber membrane based analytical techniques Presents discussion on upcoming area dealing with hollow fiber contactors-based technology in fermentation and enzymatic transformation and in chiral separations This book is equally suited for newcomers to the field, as well as for engineers and scientists that have basic knowledge in this field but are interested in obtaining more information about specific future applications.
Download or read book Membrane Technologies for Heavy Metal Removal from Water written by Juhana Jaafar and published by CRC Press. This book was released on 2024-02-12 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers lucid treatment of fundamental concepts related to potential applications and prospects of different membranes for wastewater decontamination by removing heavy metals. Divided into four sections, it provides an overview of different sources of water contamination, their impacts on human health and the environment, and compares traditional methods used to nullify these impacts. Further, it covers different mature membrane technologies such as polymeric membranes, poly-ceramic membranes, carbon-based membranes and many more, followed by pertinent case studies. Features: Focuses on the removal of heavy metals using membrane-based technologies. Discusses pertinent criteria to select suitable membranes. Includes feasibility studies and applications of different mature and emerging membranes. Describes heavy metals' occurrence and transport in an aqueous system with an overview of the adverse effects. Reviews challenges and opportunities associated with using different membranes. This book is aimed at graduate students and researchers in materials science, water engineering and wastewater treatment.
Download or read book Science and Technology of Separation Membranes written by Tadashi Uragami and published by John Wiley & Sons. This book was released on 2017-03-14 with total page 1360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers a comprehensive overview of membrane science and technology from a single source Written by a renowned author with more than 40 years’ experience in membrane science and technology, and polymer science Covers all major current applications of membrane technology in two definitive volumes Includes academic analyses, applications and practical problems for each existing membrane technology Includes novel applications such as membrane reactors, hybrid systems and optical resolution as well as membrane fuel cells
Download or read book Contemporary Ergonomics 1999 written by Margaret Hanson and published by CRC Press. This book was released on 2004-01-14 with total page 1184 pages. Available in PDF, EPUB and Kindle. Book excerpt: The annually released proceedings of the UK's Ergonomics Society annual conference. This book continues the long association between Taylor & Francis and the Ergonomics Society.
