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Author : NoHwa Lee
Publisher :
ISBN 13 :
Total Pages : 346 pages
Book Rating : 4.:/5 (611 download)
Download or read book Natural Organic Matter (NOM) Fouling of Low-pressure (MF and UF) Membranes written by NoHwa Lee and published by . This book was released on 2003 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : American Water Works Association
ISBN 13 : 9781605730073
Total Pages : 298 pages
Book Rating : 4.7/5 (3 download)
Download or read book Natural Organic Matter Fouling of Low-Pressure Membrane Systems written by and published by American Water Works Association. This book was released on 2008-01-01 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of low-pressure membranes, microfiltration (MF) and ultrafiltration (UF), has increased dramatically over the last decade in response to new drinking water regulations focused on increased control of pathogens and disinfection byproducts (DBPs), and reduced membrane costs. The overall goal of this project was to investigate the specific contributions of the different types of natural organic matter to MF / UF fouling with the intent to develop a surrogate test or index that could be used to predict NOM fouling at low cost through a combination of source water characterization and rapid bench-scale testing.
Author : J. Lozier
Publisher : IWA Publishing
ISBN 13 : 9781843392125
Total Pages : 340 pages
Book Rating : 4.3/5 (921 download)
Download or read book Natural Organic Matter Fouling of Low-Pressure Membrane Systems written by J. Lozier and published by IWA Publishing. This book was released on 2008-10-14 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low-pressure (LP) membrane use has increased dramatically over the last decade in response to more stringent pathogen-related drinking water regulations, water reclamation and the need for more effective reverse osmosis pretreatment, and from dramatically reduced membrane costs. More cost-effective and reliable operation of LP membrane systems is constrained, however, by fouling, in particular fouling by NOM. NOM fouling is poorly understood because of both the complexity and types of NOM that exists in natural sources and wastewater effluent and NOM-membrane interactions. This report is available as a Pay-Per-View item only. NOM exists in three primary forms (allochthonous, autochthonous, and effluent-derived), with a variety of components having differing fouling tendencies. LP membranes comprise hollow fibers of differing polymeric materials, with a range of properties that likewise influence fouling propensity. Fouling management strategies (backwash, air scrub, chemical cleaning) employed with LP membrane systems differ from supplier to supplier. This, combined with a number of the methods used to reduce NOM levels prior to membrane treatment (e.g., coagulation, clarification), further complicate the understanding of NOM fouling. The overall goal of this project was to investigate the specific contributions of the different types of natural organic matter (NOM) to microfiltration/ultrafiltration (MF/UF) fouling. The intent was to develop a surrogate test or index that could be used to predict NOM fouling at low cost through a combination of source water characterization and rapid bench-scale testing. The research incorporated bench-, pilot- and full-scale investigations. Testing was conducted with four source waters, selected to capture the fouling characteristics of the three primary types of NOM. Bench testing use a stirred, cell apparatus and three flat sheet membrane types, representing commercially dominant MF and UF hollow fiber membranes of the same polymer types. Hollow fiber bench testing used two PVDF and two PES membranes operated in both sequential and alternating filtration/backwash mode. Pilot testing included PVDF MF and UF and PES UF systems operated on three of the four source waters and incorporated a host of fouling management strategies. Full-scale investigations captured operating data from several plants having differing levels and types of NOM.
Author : Gary L. Amy
Publisher : American Water Works Association
ISBN 13 : 1583211063
Total Pages : 412 pages
Book Rating : 4.5/5 (832 download)
Download or read book NOM Rejection By, and Fouling Of, NF and UF Membranes written by Gary L. Amy and published by American Water Works Association. This book was released on 2001 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The performance of spiral-wound nanofiltration (NF) and ultrafiltration (UF) membranes was investigated in terms of natural organic matter (NOM) rejection and associated NOM fouling. This study focused on (1) demonstrating the effects of both hydrophobic and electrostatic interactions between NOM components and the membrane surface, (2) determining influential factors (water quality and operational) in NOM rejection and flux decline, (3) determining major foulant components of NOM, and (4) developing NOM-rejection prediction equations and flux-decline (NOM adsorption) models." -- Executive summary.
Author : E.M. Thurman
Publisher : Springer Science & Business Media
ISBN 13 : 9789024731435
Total Pages : 524 pages
Book Rating : 4.7/5 (314 download)
Download or read book Organic geochemistry of natural waters written by E.M. Thurman and published by Springer Science & Business Media. This book was released on 1985-04-30 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is written as a reference on organic substances in natural waters and as a supplementary text for graduate students in water chemistry. The chapters address five topics: amount, origin, nature, geochemistry, and characterization of organic carbon. Of these topics, the main themes are the amount and nature of dissolved organic carbon in natural waters (mainly fresh water, although seawater is briefly discussed). It is hoped that the reader is familiar with organic chemistry, but it is not necessary. The first part of the book is a general overview of the amount and general nature of dissolved organic carbon. Over the past 10 years there has been an exponential increase in knowledge on organic substances in water, which is the result of money directed toward the research of organic compounds, of new methods of analysis (such as gas chromatography and mass spectrometry), and most importantly, the result of more people working in this field. Because of this exponential increase in knowledge, there is a need to pull together and summarize the data that has accumulated from many disciplines over the last decade.
Author : Mika Sillanpaa
Publisher : Butterworth-Heinemann
ISBN 13 : 0128242752
Total Pages : 374 pages
Book Rating : 4.1/5 (282 download)
Download or read book Natural Organic Matter in Water written by Mika Sillanpaa and published by Butterworth-Heinemann. This book was released on 2022-10-17 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural Organic Matter in Water: Characterization, Treatment Methods, and Climate Change Impact, Second Edition focuses on advanced filtration and treatment options, as well as processes for reducing disinfection by-products, making it an essential resource on the latest breakthroughs in the characterization, treatment and removal of natural organic matter (NOM) from drinking water. Based on the editor’s years of research and field experience, the book covers general parameters, isolation and concentration, fractionation, composition and structural analysis, and biological testing, along with removal methods such as inorganic coagulants, polyelectrolytes and composite coagulants. In addition, sections cover electrochemical and membranes removal methods such as electrocoagulation, electrochemical oxidation, microfiltration and ultrafiltration, nanofiltration, and membrane fouling. This book is a valuable guide for engineers and researchers looking to integrate methods, processes and technologies to achieve desired affects. Provides a summary of up-to-date information surrounding NOM Presents enhanced knowledge on treatment strategies for the removal of NOM Covers conventional as well as advanced NOM removal methods
Author : Andrea Schafer
Publisher : CRC Press
ISBN 13 : 1420031635
Total Pages : 432 pages
Book Rating : 4.4/5 (2 download)
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
Author : Claudia Laabs
Publisher : Logos Verlag Berlin
ISBN 13 : 9783832506438
Total Pages : 0 pages
Book Rating : 4.5/5 (64 download)
Download or read book Fouling of Low Pressure Membranes by Municipal Wastewater written by Claudia Laabs and published by Logos Verlag Berlin. This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microfiltration (MF) and ultrafiltration (UF) membranes have a wide range of applications in the wastewater industry: they are used to polish wastewater treatment plant effluents or are directly integrated in the biological treatment process in the form of membrane bio-reactors (MBR). The major challenge of low-pressure membrane filtration remains the fouling of the membranes by organic matter which prevents an efficient operation by reducing the overall transmembrane flux and/or increasing the transmembrane pressure over time. This research investigates the fouling potential of municipal wastewater in low-pressure membrane filtration. Using bench-scale stirred cell experiments the principal organic foulants and the underlying fouling mechanisms are identified. Additionally, two MBR pilot plants are monitored over the course of one year in order to detect possible correlations between the feed water characteristics, operational parameters, and membrane fouling.
Author : H. K. Chun
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (637 download)
Download or read book Natural Organic Matter (NOM) Fouling of Ultrafiltration Membranes written by H. K. Chun and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jaeweon Cho
Publisher :
ISBN 13 :
Total Pages : 466 pages
Book Rating : 4.:/5 (425 download)
Download or read book Natural Organic Matter (NOM) Rejection By, and Flux-decline Of, Nanofiltration (NF) and Ultrafiltration (UF) Membranes written by Jaeweon Cho and published by . This book was released on 1998 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Antonia Lorenzo
Publisher : IWA Publishing
ISBN 13 : 1843393700
Total Pages : 197 pages
Book Rating : 4.8/5 (433 download)
Download or read book Membrane Technology in Water Treatment in the Mediterranean Region written by Antonia Lorenzo and published by IWA Publishing. This book was released on 2010-11-24 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: The complex dimensions of the Mediterranean freshwater resources, their fragility and their scarcity have been highlighted and have received considerable attention as a primary priority issue politically, technically and scientifically. Membrane technology, with its different applications in water treatment (desalination, potable water treatment, wastewater treatment and reuse) has showed to be a powerful tool to abate the water crisis in the Mediterranean region. The primary objective of Membrane Technology in Water Treatment in the Mediterranean Region is to support the current research and development activities in membrane technology focused on water treatment in the Mediterranean area, providing an international stage to local research organisations and universities devoted to the development of membrane technologies in the following areas: municipal and industrial wastewater treatment, surface water purification and brackish and sea water treatment for drinking purpose. It covers the identification, mapping and evaluation of the on-going research, in order to propose future research and co-operation strategies. Visit the IWA WaterWiki to read and share material related to this title: http://www.iwawaterwiki.org/xwiki/bin/view/Articles/MembraneTechnologyinWaterTreatmentintheMediterraneanRegion
Author : Zeman
Publisher : Routledge
ISBN 13 : 1351431501
Total Pages : 654 pages
Book Rating : 4.3/5 (514 download)
Download or read book Microfiltration and Ultrafiltration written by Zeman and published by Routledge. This book was released on 2017-11-22 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integrates knowledge on microfiltration and ultrification, membrane chemistry, and characterization methods with the engineering and economic aspects of device performance, device and module design, processes, and applications. The text provides a discussion of membrane fundamentals and an analytical framework for designing and developing new filtrations systems for a broad range of technologically important functions. It offers information on membrane liquid precursors, fractal and stochastic pore space analysis, novel and advanced module designs, and original process design calculations.
Author : Hongbo Du
Publisher : BoD – Books on Demand
ISBN 13 : 9535139215
Total Pages : 283 pages
Book Rating : 4.5/5 (351 download)
Download or read book Osmotically Driven Membrane Processes written by Hongbo Du and published by BoD – Books on Demand. This book was released on 2018-03-28 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: Osmotically driven membrane processes (ODMPs) including forward osmosis (FO) and pressure-retarded osmosis (PRO) have attracted increasing attention in fields such as water treatment, desalination, power generation, and life science. In contrast to pressure-driven membrane processes, e.g., reverse osmosis, which typically employs applied high pressure as driving force, ODMPs take advantages of naturally generated osmotic pressure as the sole source of driving force. In light of this, ODMPs possess many advantages over pressure-driven membrane processes. The advantages include low energy consumption, ease of equipment maintenance, low capital investment, high salt rejection, and high water flux. In the past decade, over 300 academic papers on ODMPs have been published in a variety of application fields. The number of such publications is still rapidly growing. The ODMPs' approach, fabrications, recent development and applications in wastewater treatment, power generation, seawater desalination, and gas absorption are presented in this book.
Author : Victor Augusto Yangali Quintanilla
Publisher : CRC Press
ISBN 13 : 0203093364
Total Pages : 220 pages
Book Rating : 4.2/5 (3 download)
Download or read book Rejection of Emerging Organic Contaminants by Nanofiltration and Reverse Osmosis Membranes written by Victor Augusto Yangali Quintanilla and published by CRC Press. This book was released on 2010-05-11 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pollution of water sources with emerging contaminants (micropollutants) is a fact known worldwide. Although the risks of micropollutants in sources of water are partly recognized, interpretation of consequences are controversial; thus, the future effects of altered water with micropollutants remains uncertain and may constitute a point of conc
Author : Glen Bates
Publisher : Scientific e-Resources
ISBN 13 : 1839473452
Total Pages : 324 pages
Book Rating : 4.8/5 (394 download)
Download or read book Environmental Microbiology written by Glen Bates and published by Scientific e-Resources. This book was released on 2018-01-08 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Microbiology, besides a traditional discipline in Developing fast, because of realization of its importance in Industry, Agriculture Pharmaceutical concerns, Public Health, Geological explorations, bioenergetics and as a mean to exploit new sources of energy useful for various purposes. Environmental Microbiology comprises a crucial element of studies in microbiology. Enabling scientists to explore microbes in greater detail, it gives an insight into how microorganisms behave under non-simulated, natural conditions, although microbes that exist in artificial environments such as bioreactors are also studies. Exploring such processes as microbial ecology, microbially mediated nutrient cycling, geomicrobiology, microbial diversity and bioremediation the subject encompasses a great deal. Environmental Microbiology was born at the dawn of the "e;environmental era"e; at the beginning of the 1970s. Thirty years of maturation have led to an exciting and vibrant field that has attracted countless numbers of productive and enthusiastic scientists and students at universities, research centers and government agencies around the world. The present text has been designed to outline the basic and fundamental aspects of Environmental Microbiology to be understood in its right perspective. The modern techniques and designs employed in microbiological applications are discussed in a comprehensive manner which will update the readers of the commercial aspects of microbiology.
Author : T. David Chinn
Publisher : American Water Works Association
ISBN 13 : 158321254X
Total Pages : 342 pages
Book Rating : 4.5/5 (832 download)
Download or read book Implementation of Arsenic Treatment Systems: Design considerations, operation and maintenance written by T. David Chinn and published by American Water Works Association. This book was released on 2002 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Klaus-Viktor Peinemann
Publisher : John Wiley & Sons
ISBN 13 : 9783527631414
Total Pages : 251 pages
Book Rating : 4.6/5 (314 download)
Download or read book Membranes for Water Treatment written by Klaus-Viktor Peinemann and published by John Wiley & Sons. This book was released on 2010-11-29 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: This ready reference on Membrane Technologies for Water Treatment, is an invaluable source detailing sustainable, emerging processes, to provide clean, energy saving and cost effective alternatives to conventional processes. The editors are internationally renowned leaders in the field, who have put together a first-class team of authors from academia and industry to present a highly approach to the subject. The book is an instrumental tool for Process Engineers, Chemical Engineers, Process Control Technicians, Water Chemists, Environmental Chemists, Materials Scientists and Patent Lawyers.
