Biofouling Of Membrane Systems
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Biofouling Of Membrane Systems
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Author : Szilard Bucs
language : en
Publisher:
Release Date : 2018
Biofouling Of Membrane Systems written by Szilard Bucs and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Electronic books categories.
Biofouling Of Spiral Wound Membrane Systems
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Author : Johannes Simon Vrouwenvelder
language : en
Publisher: IWA Publishing
Release Date : 2011-03-15
Biofouling Of Spiral Wound Membrane Systems written by Johannes Simon Vrouwenvelder and has been published by IWA Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-03-15 with Science categories.
The study of membrane biofouling has increased strongly in the past four years, compared to the previous twenty two years, indicated by the more than doubling of the number of scientific papers. However, no single source gives an updated overview of biofouling. Biofouling of Spiral Wound Membrane Systems gives a complete and comprehensive overview of all aspects of biofouling, bridging the gap between microbiology, hydraulics and membrane technology. High quality drinking water can be produced with membrane filtration processes like reverse osmosis (RO) and nanofiltration (NF). As the global demand for fresh clean water is increasing, these membrane technologies are increasingly important. One of the most serious problems in RO/NF applications is biofouling – excessive growth of biomass – affecting the performance of the RO/NF systems. This can be due to the increase in pressure drop across membrane elements (feed-concentrate channel), the decrease in membrane permeability or the increase in salt passage. These phenomena result in the need to increase the feed pressure to maintain constant production and to clean the membrane elements chemically. Biofouling of Spiral Wound Membrane Systems relates biomass accumulation in spiral wound RO and NF membrane elements with membrane performance and hydrodynamics and determines parameters influencing biofouling. It focuses on the development of biomass in the feed-concentrate (feed-spacer) channel and its effect on pressure drop and flow distribution. It can be used to develop an integral strategy to control biofouling in spiral wound membrane systems. Most past and present methods to control biofouling have not been very successful. An overview of several potential complementary approaches to solve biofouling is given and an integrated approach for biofouling control is proposed.
Controlling Biofouling In Seawater Reverse Osmosis Membrane Systems
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Author : Nirajan Dhakal
language : en
Publisher: CRC Press
Release Date : 2017-12-01
Controlling Biofouling In Seawater Reverse Osmosis Membrane Systems written by Nirajan Dhakal and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-12-01 with Science categories.
Seawater desalination is a rapidly growing coastal industry that is increasingly threatened by algal blooms. Depending on the severity of algal blooms, desalination systems may be forced to shut down because of clogging and/or poor feed water quality. To maintain stable operation and provide good feed water quality to seawater reverse osmosis (SWRO) systems, ultrafiltration (UF) pre-treatment is proposed. This research focused on assessing the ability of UF and other pre-treatment technologies to reduce biofouling in SWRO systems. An improved method to measure bacterial regrowth potential (BRP) was developed and applied at laboratory, pilot and full scale to assess the ability of conventional UF (150 kDa) and tight UF (10 kDa) alone and in combination with a phosphate adsorbent to reduce regrowth potential and delay the onset of biofouling in SWRO. The improved bacterial regrowth potential method employs a natural consortium of marine bacteria as inoculum and flow cytometry. The limit of detection of the BRP method was lowered to 43,000 ± 12,000 cells/mL, which is equivalent to 9.3 ± 2.6 μg-Cglucose/L. The reduction in bacterial regrowth potential after tight UF (10 kDa) was 3 to 4 times higher than with conventional UF (150 kDa). It was further reduced after the application of a phosphate adsorbent, independent of pore size of the UF membrane. Pilot studies demonstrated that the application of tight UF (10 kDa) coupled with a phosphate adsorbent consistently lowered the bacterial regrowth potential and no feed channel pressure drop increase was observed in membrane fouling simulators (MFS) over a period of 21 days. The study also showed that non-backwashable fouling of UF membranes varied strongly with the type of algal species and the algal organic matter (AOM) they release. The presence of polysaccharide (stretching -OH) and sugar ester groups (stretching S=O) was the main cause of non-backwashable fouling. In conclusion, this study showed that an improved BRP method is suitable for the assessment of SWRO pre-treatment systems and it can be a useful tool to develop potential strategies to mitigate biofouling and improve the sustainability of SWRO systems.
Osmotically Driven Membrane Processes
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Author : Muharrem Ince
language : en
Publisher: BoD – Books on Demand
Release Date : 2022-02-16
Osmotically Driven Membrane Processes written by Muharrem Ince and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-02-16 with Technology & Engineering categories.
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.
Membranes For Water Treatment
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Author : Klaus-Viktor Peinemann
language : en
Publisher: John Wiley & Sons
Release Date : 2010-11-29
Membranes For Water Treatment written by Klaus-Viktor Peinemann and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-11-29 with Technology & Engineering categories.
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.
Integrated Membrane Systems
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Author : Jan C. Schippers
language : en
Publisher: American Water Works Association
Release Date : 2004
Integrated Membrane Systems written by Jan C. Schippers and has been published by American Water Works Association this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Science categories.
With new and forthcoming regulatory requirements regarding advanced water treatment, membrane processes have a broad range of applicability. This report covers three major pretreatments that were tested on pilot-plant scale in comparison to a conventional membrane system for anaerobic groundwater.
Fundamentals Of Membrane Bioreactors
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Author : Bradley Ladewig
language : en
Publisher: Springer
Release Date : 2016-10-22
Fundamentals Of Membrane Bioreactors written by Bradley Ladewig and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-22 with Technology & Engineering categories.
This book provides a critical, carefully researched, up-to-date summary of membranes for membrane bioreactors. It presents a comprehensive and self-contained outline of the fundamentals of membrane bioreactors, especially their relevance as an advanced water treatment technology. This outline helps to bring the technology to the readers’ attention, and positions the critical topic of membrane fouling as one of the key impediments to its more widescale adoption. The target readership includes researchers and industrial practitioners with an interest in membrane bioreactors.
Electrically Conductive Membrane Materials And Systems
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Author : Farah Ahmed
language : en
Publisher: CRC Press
Release Date : 2023-05-04
Electrically Conductive Membrane Materials And Systems written by Farah Ahmed and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-05-04 with Technology & Engineering categories.
Electrically Conductive Membrane Materials and Systems offers in-depth insight into the transformative role of electrically conductive materials in membrane separation processes for desalination and water treatment. The book focuses on the intelligent design of conductive membranes and systems, fouling and related phenomena, fouling control using electrically conductive materials, and electrically tunable membrane systems for microfiltration, ultrafiltration, nanofiltration, reverse osmosis, and membrane distillation. With rising concerns around inaccessibility to freshwater and the ever increasing threats of population growth, climate change, and urban development, the book brings electrically conducting materials to the forefront of membrane separation technology with an emphasis on their role in the mitigation of fouling and related phenomena. Electrically conducting materials expand the versatility of membrane technology and ultimately improve access to safe water. The book is important reading for scientists, engineers, entrepreneurs, and enthusiasts from the water industry who seek to familiarize themselves with a groundbreaking area of study within modern desalination and water treatment. • Explores novel membrane materials and systems from preparation methods, materials selection, and their application in monitoring, fouling control, and performance enhancement. • Examines the mechanism of fouling prevention and cleaning in various electrically conductive materials. • Evaluates the scalability of antifouling materials and coatings, as well as electrically enhanced processes for monitoring and control in membrane separation technology. • Assesses advantages and limitations of applying electrically conductive membrane systems to fouling control for specific water treatment applications. • Provides a critical review of scientific literature in the specialized area of electrical conductive materials and systems for membrane technology.
Scaling And Particulate Fouling In Membrane Filtration Systems
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Author : S.F. Boerlage
language : en
Publisher: CRC Press
Release Date : 2001-01-01
Scaling And Particulate Fouling In Membrane Filtration Systems written by S.F. Boerlage and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-01-01 with Technology & Engineering categories.
Reliable methods to predict membrane scaling and fouling are important tools in the control of these phenomena. This dissertation focuses on the development and application of methods to predict and prevent barium sulphate scaling and particulate fouling in membrane filtration systems.
Biofouling Of Membrane Systems
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Author : Szilárd Bucs
language : en
Publisher: IWA Publishing
Release Date : 2018-09-15
Biofouling Of Membrane Systems written by Szilárd Bucs and has been published by IWA Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-15 with Science categories.
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.