Development of Durable Anti-Wetting and Anti-Fouling Membranes for Water Production Via Membrane Distillation (MD) PDF Download
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Author: Tiantian Chen
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Membrane distillation (MD) has gained a growing interest in seawater desalination, wastewater treatment, and separation of volatile compounds as of late due to its low operating pressure, moderate temperature requirements, and high salt rejection. However, membrane fouling and pore wetting are two major problems that hinder maintaining long-term stable flux and salt rejection of MD when treating various feed solutions. Electrospun nanofiber membranes (ENMs) are promising for MD applications due to the discernable advantages of their high hydrophobicity and porosity. Utilization of micro/nano-particles and surface fluoro-silanization are effective modification methods to enhance anti-fouling and anti-wetting properties of MD membranes. The objective of this doctoral research is to develop effective membranes with durable fouling/wetting resistance for water production by MD. To achieve this goal, a highly hydrophobic poly (vinylidene fluoridecohexafluoropropylene)/ reduced graphene oxide (PVDFHFP/ rGO) flatsheet membrane was prepared via a facile electrospinning technique. The rGO incorporated membranes exhibited excellent stability and durability with a salt rejection of over 99.97% and an average flux of 20.37 kg/m2h using 60 g/L sodium chloride as the feed solution. To expand the application of conventional MD membranes to treat challenging wastewaters that contain low surface tension contaminants, one simple modification method was applied by utilizing fluoroalkylsilane of low surface energy on the pristine PVDF-HFP/rGO substrate to achieve surface superamphiphobicity (both superhydrophobicity and near-superoleophobicity). The resulting membranes demonstrated superamphiphobicity, confirmed by their wetting resistance evaluated with water and low surface tension liquids. The antiwetting performance of the membrane was tested through desalinating 35 g/L sodium chloride solution in the presence of a surfactant (sodium dodecyl sulfate, SDS) in the direct contact membrane distillation (DCMD) unit. Finally, a highly permeable membrane for membrane distillation applications by employing porous MCM-48 silica as the nanofiller was developed. The addition of hydrophobic MCM-48 nanoparticles was found to significantly increase water vapor transport, with a flux enhancement 87.16% greater than that observed in the pristine PVDF-HFP membrane.
Author: Tiantian Chen
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Membrane distillation (MD) has gained a growing interest in seawater desalination, wastewater treatment, and separation of volatile compounds as of late due to its low operating pressure, moderate temperature requirements, and high salt rejection. However, membrane fouling and pore wetting are two major problems that hinder maintaining long-term stable flux and salt rejection of MD when treating various feed solutions. Electrospun nanofiber membranes (ENMs) are promising for MD applications due to the discernable advantages of their high hydrophobicity and porosity. Utilization of micro/nano-particles and surface fluoro-silanization are effective modification methods to enhance anti-fouling and anti-wetting properties of MD membranes. The objective of this doctoral research is to develop effective membranes with durable fouling/wetting resistance for water production by MD. To achieve this goal, a highly hydrophobic poly (vinylidene fluoridecohexafluoropropylene)/ reduced graphene oxide (PVDFHFP/ rGO) flatsheet membrane was prepared via a facile electrospinning technique. The rGO incorporated membranes exhibited excellent stability and durability with a salt rejection of over 99.97% and an average flux of 20.37 kg/m2h using 60 g/L sodium chloride as the feed solution. To expand the application of conventional MD membranes to treat challenging wastewaters that contain low surface tension contaminants, one simple modification method was applied by utilizing fluoroalkylsilane of low surface energy on the pristine PVDF-HFP/rGO substrate to achieve surface superamphiphobicity (both superhydrophobicity and near-superoleophobicity). The resulting membranes demonstrated superamphiphobicity, confirmed by their wetting resistance evaluated with water and low surface tension liquids. The antiwetting performance of the membrane was tested through desalinating 35 g/L sodium chloride solution in the presence of a surfactant (sodium dodecyl sulfate, SDS) in the direct contact membrane distillation (DCMD) unit. Finally, a highly permeable membrane for membrane distillation applications by employing porous MCM-48 silica as the nanofiller was developed. The addition of hydrophobic MCM-48 nanoparticles was found to significantly increase water vapor transport, with a flux enhancement 87.16% greater than that observed in the pristine PVDF-HFP membrane.
Author: Inamuddin
Publisher: Springer Nature
ISBN: 3030728730
Category : Technology & Engineering
Languages : en
Pages : 254
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Book Description
This edited book explores the most promising and reliable technological developments expected to impact on the next generation of desalination systems. The book includes research studies which takes the reader on a fascinating walk through the multidisciplinary world of membrane science applied to water treatment. Concerning the ultimate technological advancement, the book seeks to investigate how to bridge the gap between the laboratory scale and the applicability to industry.
Author: Xuan-Thanh Bui
Publisher: Elsevier
ISBN: 0443191816
Category : Science
Languages : en
Pages : 534
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Book Description
Current Developments in Biotechnology and Bioengineering: Membrane Technology for Sustainable Water and Energy Management covers a variety of advanced technologies for membrane processes, including water/wastewater treatment and reuse, membrane materials, operation and maintenance, fouling control, life cycle assessment, removal of micro/emerging pollutants, and operational cost of membrane processes. Supported by prominent editors and global contributors, this reference contains chapters on membrane treatment strategies for the current pollution of complex organic matters, nutrients, toxic substances, microplastics, membrane fouling control in different water resources, and reusing water resources through promising separation technologies, including reverse osmosis, forward osmosis, and membrane distillation. Delivers advances on membrane processes, including water and wastewater treatment and reuse by membranes Provides state-of-the-art information on design and operation of novel membrane systems, energy consumption, fouling control, etc. Describes hybrid membrane processes
Author: Zhien Zhang
Publisher: Springer Nature
ISBN: 3030412954
Category : Technology & Engineering
Languages : en
Pages : 195
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Book Description
This book presents a detailed discussion of the fundamentals and practical applications of membrane technology enhancement in a range of industrial processes, energy recovery, and resource recycling. To date, most books on the applications of membrane technology have mainly focused on gas pollution removal or industrial wastewater treatment. In contrast, the enhancement of various membrane processes in the areas of energy and the environment has remained largely overlooked. This book highlights recent works and industrial products using membrane technology, while also discussing experiments and modeling studies on the membrane enhancement process.
Author: Zhangxin Wang
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 164
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Book Description
Author: Angelo Basile
Publisher: Elsevier
ISBN: 0128168242
Category : Technology & Engineering
Languages : en
Pages : 335
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Book Description
Current Trends and Future Developments in Bio-Membranes: Membrane Technology for Water and Wastewater Treatment - Advances and Emerging Processes presents recent advances and a status update on the applications of membrane processes to both urban and industrial wastewater. Specific case studies of membrane technologies are described. Membrane processes have been widely studied, but their application in the wastewater sector is increasing rapidly. The book deals with the applications to the wastewater sector (e.g. MBR, NF, RO, ED) and emerging membrane technologies (e.g. MBfR, MD, FO, MFC). Specific case studies of membrane technology application and relevant wastewaters (e.g. municipal, dairy, oily refinery, etc.) are also discussed. Presents recent advances of wastewater treatment using membrane processes Outlines novel and emerging membrane technologies, e.g., membrane distillation, forward osmosis and membrane biofilm reactors Includes recent developments of more consolidated membrane processes, e.g., membrane biological reactors, nanofiltration, reverse osmosis, etc., either for water treatment or desalination Includes interesting and instructive case studies on the application of membrane technologies to various wastewater sources, e.g., municipal, dairy, olive mill, refinery, pulp and paper
Author: Sanjay K. Nayak
Publisher: Elsevier
ISBN: 0323885179
Category : Technology & Engineering
Languages : en
Pages : 677
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Book Description
Advancements in Polymer-Based Membranes for Water Remediation describes the advanced membrane science and engineering behind the separation processes within the domain of polymer-based membrane systems in water remediation. Emphasis has been put on several aspects, ranging from fundamental concepts to the commercialization of pressure and potential driven membranes, updated with the latest technological progresses, and relevant polymer materials and application potential towards water treatment systems. Also included in this book are advances in polymers for membrane application in reverse osmosis, nanofiltration, ultrafiltration, microfiltration, forward osmosis, and polymeric ion-exchange membranes for electrodialysis and capacitive deionization. With its critical analyzes and opinions from experts around the world, this book will garner considerable interest among actual users, i.e., scientists, engineers, industrialists, entrepreneurs and students. - Evaluates water remediation using pressure driven and potential driven membrane processes - Reviews emerging polymer systems for membranes preparation - Offers a comprehensive analysis in the development of polymer-based membranes and their applications in water remediation - Analyzes membrane performance parameters to evaluate separation efficiency for various water pollutants - Covers concept-to-commercialization aspects of polymer-based membranes in terms of water purification, pollutant removal, stability and scalability
Author: Angelo Basile
Publisher: Elsevier
ISBN: 1782421262
Category : Technology & Engineering
Languages : en
Pages : 667
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Book Description
Advances in Membrane Technologies for Water Treatment: Materials, Processes and Applications provides a detailed overview of advanced water treatment methods involving membranes, which are increasingly seen as effective replacements for a range of conventional water treatment methods. The text begins with reviews of novel membrane materials and advances in membrane operations, then examines the processes involved with improving membrane performance. Final chapters cover the application of membrane technologies for use in water treatment, with detailed discussions on municipal wastewater and reuse in the textile and paper industries. - Provides a detailed overview of advanced water treatment methods involving membranes - Coverage includes advancements in membrane materials, improvement in membrane performance, and their applications in water treatment - Discusses the use of membrane technologies in the production of drinking water, desalination, wastewater treatment, and recovery
Author: Amira Abdelrasoul
Publisher: BoD – Books on Demand
ISBN: 1789848067
Category : Technology & Engineering
Languages : en
Pages : 226
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Book Description
Membrane technologies are currently the most effective and sustainable methods utilized in diversified water filtration, wastewater treatment, as well as industrial and sustainable energy applications. This book covers essential subsections of membrane separation and bioseparation processes from the perspectives of technical innovation, novelty, and sustainability. The book offers a comprehensive overview of the latest improvements and concerns with respect to membrane fouling remediation techniques, issues of bioincompatibility for biomedical applications, and various subareas of membrane separation processes, which will be an efficient resource for engineers.
Author: Angelo Basile
Publisher: Elsevier
ISBN: 0128135468
Category : Technology & Engineering
Languages : en
Pages : 440
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Book Description
Current Trends and Future Developments in (Bio-) Membranes: Renewable Energy Integrated with Membrane Operations offers an overview of advanced technologies in the field of water desalination, wastewater treatment and hydrogen production that is coupled with renewable energy sources. Membrane processes are well-recognized technologies in the field of water and wastewater treatment. This book reviews their potential and lists new technologies which allow for the use of solar, hydroelectric, wind, hydrothermal and other forms of renewable energy with the same effect. In addition, it highlights what has already been achieved in the integration of membrane reactors and energy produced by biomass. - Provides an overview of the interconnections between membrane technology and renewable energy sources - Provides a comprehensive review of advanced research on membrane processes for water desalination, wastewater treatment and hydrogen production - Relates the various processes to energy sources, including solar, wind, biomass and geothermal energy - Addresses key issues involved in the use of renewable energy in wastewater treatment
