Membrane Filtration

A hands-on, problem-solving approach to the engineering of membrane filtration processes, from microfiltration to reverse osmosis.

Author: Greg Foley

Publisher: Cambridge University Press

ISBN: 9781107028746

Category: Computers

Page: 346

View: 543

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A hands-on, problem-solving approach to the engineering of membrane filtration processes, from microfiltration to reverse osmosis.
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Membrane filtration guidance manual

2.1 Introduction There are several classes of treatment processes that constitute
membrane filtration for the purposes of Long-Term 2 Enhanced Surface Water
Treatment Rule (LT2ESWTR) compliance. These processes include:
microfiltration ...

Author:

Publisher: DIANE Publishing

ISBN: 9781428900134

Category:

Page:

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Scaling and Particulate Fouling in Membrane Filtration Systems

In the last decade , pressure driven membrane filtration processes ; reverse
osmosis , nano , ultra and micro - filtration have undergone steady growth .
Drivers for this growth include desalination to combat water scarcity and the
removal of ...

Author: S.F. Boerlage

Publisher: CRC Press

ISBN: 9058092429

Category: Technology & Engineering

Page: 258

View: 99

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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.
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Membrane filtration

Nevertheless , there exists a lack of impartial controlled studies that define the
conditions under which membrane filtration may be used to replace portions of
the municipal wastewater treatment process and to meet Title 22 CWRC
applications ...

Author: Keith Norman Bourgeous

Publisher:

ISBN: UCAL:X59252

Category:

Page: 300

View: 966

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Integration of Membrane Filtration Into Water Treatment Systems

The use of membrane filtration for drinking water treatment has increased
considerably over the past 15 years. Initially, membranes were implemented
predominantly in smaller plants (less than 1 mgd; 3.7 ML/d) with minimal pre- and
 ...

Author: Jonathan R. Pressdee

Publisher: American Water Works Association

ISBN: 9781583214428

Category: Science

Page: 281

View: 737

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The objective of this project was to examine the process and design implications associated with the integration of membranes into existing water treatment plants and process schemes. Membrane technologies covered include microfiltration ( MF ), ultrafiltration ( UF ), nanofiltration ( NF ), and reverse osmosis ( RO ).
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Coagulation Pretreatment for Membrane Filtration

L/m hr) for MF membranes (at a pressure of 1 atm [1 bar]), this represents a
relatively small reduction in fouling. ... CAPITAL COSTS Membrane Filtration
Membrane filtration has been used in the water treatment industry for less than
15 years.

Author: Kerry J. Howe

Publisher: American Water Works Association

ISBN: 1583212655

Category: Technology & Engineering

Page: 264

View: 779

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This research report evaluates the fouling and flux decline performance of membranes after the source water is pretreated with coagulation, and identifies the conditions under which coagulation can improve membrane performance as well as the mechanisms that cause natural waters to foul membranes. Conducted at the University of Illinois, the experiments involved collecting raw water from lakes and rivers, coagulating the water in the laboratory, characterizing the physical and chemical composition of the water before and after coagulation, measuring flux decline as the water was filtered through MF and UF membranes, and examining the fouled membranes with scanning electron microscopy. No index is provided. Annotation copyrighted by Book News, Inc., Portland, OR
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Optimization of Membrane Treatment for Direct and Clarified Water Filtration

One component of this study was to review the literature regarding the effects of
pretreatment on membrane filtration, and prepare an updated summary of this
literature. Much has been written about pretreatment for membrane filtration in
the ...

Author: Samer Adham

Publisher: American Water Works Association

ISBN: 9781583214619

Category: Science

Page: 167

View: 137

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"Subject area: high-quality water"--Cover.
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Membrane Filtration

Author: APV Pasilac AS.

Publisher:

ISBN: OCLC:154275587

Category: Membrane separation

Page: 20

View: 509

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Microfluidic Membrane Filtration Systems to Study Biofouling

In wastewater treatment, the membrane functions as a semipermeable barrier that restricts transport of undesired particulates.

Author: Ishita Biswas

Publisher:

ISBN: OCLC:1154156969

Category: Science

Page:

View: 906

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In wastewater treatment, the membrane functions as a semipermeable barrier that restricts transport of undesired particulates. A major problem related to membrane filtration processes is fouling of membranes by colloidal particles, organic matter, and biomaterials. Among the various types of fouling, biofouling is one of the most severe, as it is a dynamic process. Even a few surviving cells that adhere to the membrane surface multiply exponentially at the expense of biodegradable substances in the feed solution. To analyze the mechanism of biofouling, membrane cell is typically considered as a black-box, where only the input and the output can be measured and put into use for analysis. Microfluidic devices are being used to study and understand the nature, properties, and evolution of biofouling. A primary advantage of a microfluidic membrane is the ability to conduct real-time observations of biofilm. This chapter presents an overview of the biofouling in membrane processes and different fabrication technique of microfluidic membrane systems.
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Cloth Media Filtration and Membrane Microfiltration

Abstract A combined system comprised of a cloth media filter and a membrane
microfilter operated in series was used to treat secondary effluent . The objective
of the study was to investigate the impact of pre - membrane filtration on the ...

Author: Nicholas Brewster Tooker

Publisher:

ISBN: UCAL:X70605

Category:

Page: 42

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Particulate Retention by Microporous Membrane Filters in Liquid Filtration

Badenhop , C. T. , A. T. Spann , and T. H. Meltzer , " A Consideration of the
Parameters Governing Membrane Filtration- Particularly of Proteinaceous
Solutions " , Membrane Science and Technology , J. E. Flynn , ed , Plenum Press
, New York ...

Author: Jae-Keun Lee

Publisher:

ISBN: MINN:31951D00754456L

Category:

Page: 424

View: 411

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Membrane Filter Food Microbiology

Invasiveness 145 Iso - Grid , filtration apparatus 219 Iso - Grid , HGMF 16 Iso -
Grid , Sample Processor 61 , 105 , 120 , 133 , 139 , 156 Isolation 207 Janus
Green B 101 Jet , fuel 11 Jet , rinsing 59 Kanagawa phenomenon 148
Kanamycin 260 ...

Author: Anthony N. Sharpe

Publisher: Longman Sc & Tech

ISBN: 0863800653

Category: Technology & Engineering

Page: 323

View: 594

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Microfiltration and Ultrafiltration Membranes for Drinking Water M53

Another issue of interest is whether a standard regulatory framework for
membrane filtration will eventually emerge. Historically, because membrane
filtration has not been specifically regulated at the federal level, state primacy
agencies have ...

Author: AWWA Staff

Publisher: American Water Works Association

ISBN: 9781613000175

Category: Ultrafiltration

Page: 257

View: 811

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Enhancement of Membrane Filtration Process Via Nanomaterial Coatings for the Generation of Electrostatic Forces Oil Barriers and Joule Heating

Water scarcity exasperated by global climate change and growing population is a growing challenge for many regions of the world.

Author: Alexander Vladimirovich Dudchenko

Publisher:

ISBN: 1369656556

Category: Carbon nanotubes

Page: 212

View: 990

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Water scarcity exasperated by global climate change and growing population is a growing challenge for many regions of the world. The water shortages are prompting regions to look for new water sources to supplement their dwindling water supplies ranging from wastewater reuse to saline ground water desalination. Membrane filtration is one of the few technologies that can treat these water sources but suffers from fouling, and complicated system designs. Herein we present methods to address problems faced by membrane filtration through use of nanomaterial-based thin films that actively address key problems faced by membrane filtration processes. Organic contaminants commonly found in surface waters, ground water, and wastewater rapidly foul membranes, leading to decline in their performance. We demonstrate that application of electrical potentials to electrically conductive and robust carbon nanotube (CNT) thin films deposited on UF membranes generates strong electrostatic repulsive forces. We demonstrate that these artificially generated electrostatic forces can reduces membrane fouling during treatment of synthetic wastewaters and model organic foulants, with the results being qualitatively explained by the solution of modified Poisson-Boltzmann equation. Although our results demonstrate electrostatics forces are effective at preventing organic fouling, their efficacy suffers in saline waters such as produced, flow back, and industrial wastewaters. These waters can contain oil emulsions made up of small and stable oil droplets that can rapidly foul UF membranes. We take advantage of the nano-magnetite properties, which cause the nano-particles to form a film at the water-oil interphase. The nano-magnetite films create a physical barrier that prevents oil droplets from interacting with the membrane surface or coalesce during filtration. The fouling prevention is explored as a function of nano-particle and membrane hydrophilicity with a developed theoretical framework qualitatively explaining our experimental results. Finally, we demonstrate that the previously prepared CNT films when deposited on hydrophobic membranes can be used to drive membrane distillation (MD) process via Joule heating effect. We explore the stability of the CNT films using electrical impedance spectroscopy (EIS) under different frequencies and salinities and demonstrate that they can be used to achieve exceptionally high single pass recoveries in MD.
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Membrane Treatment for Drinking Water and Reuse Applications

OVERVIEW OF THE LT2ESWTR AND MEMBRANE FILTRATION BASICS The
first chapter of the MFGM provides an introduction to the document and the
LT2ESWTR regulatory framework , including a short summary of the
requirements for ...

Author: Kerry J. Howe

Publisher: Amer Water Works Assn

ISBN: PSU:000060978387

Category: Science

Page: 667

View: 680

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This compendium represents the first peer-reviewed book of its kind published by AWWA's Membrane Processes Committee (MPC). This book represents the best membrane-related papers from 2004 AWWA Annual Conference, 2004 Water Quality Technology Conference, and 2005 Membrane Technology Conference, which were all peer reviewed and author updated. Sections cover Section removal efficiencies, membrane performance, pretreatment strategies, regulatory issues, filtration guidance, studies on operations and integrated membrane systems, MBR (membrane bioreactors), and reuse issues.
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Protein Purification Process Engineering

4 Crossflow Membrane Filtration Zhi - Guo Su Dalian University of Technology ,
Dalian , People's Republic of China Clark K. Colton Massachusetts Institute of
Technology , Cambridge , Massachusetts I. INTRODUCTION Filtration is a
process ...

Author: Roger Harrison

Publisher: CRC Press

ISBN: 082479009X

Category: Medical

Page: 400

View: 570

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Offers coverage of the development of protein purification processes for large-scale commercial operations, and addresses process development, scale-up, applications and mathematical descriptions. Technologies currently used at the commercial scale are covered in depth.
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