Evaluation of thin film nanocomposite reverse osmosis membranes for long-term brackish water desalination performance

Cay-Durgun, Pinar; Mccloskey, Cailen Marie; Konecny, John; Khosravi, Afsaneh; Lind, Mary Laura

doi:10.1016/j.desal.2016.10.014

Cited by 43 publications

(15 citation statements)

References 50 publications

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“…The flux, salt rejection, and antifouling ability were found to be higher than the conventional PA TFC membrane. Similarly, Cay-Durgun et al [304] used Linde type A (LTA) zeolite nanoparticles to synthesize TFN membranes with higher flux and salt rejection compared to the TFC counterpart. In general, zeolite nanoparticles can improve the flux of RO membranes without significant compromise in the salt rejection by providing favorable flow channels for water molecules.…”

Section: Additivesmentioning

confidence: 99%

Reverse osmosis desalination: A state-of-the-art review

et al. 2019

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Water scarcity is a grand challenge that has always stimulated research interests in finding effective means for pure water production. In this context, reverse osmosis (RO) is considered the leading and the most optimized membrane-based desalination process that is currently dominating the desalination market. In this review, various aspects of RO desalination are reviewed. Theories and models related to concentration polarization and membrane transport, as well as merits and drawbacks of these models in predicting polarization effects, are discussed. An updated review of studies related to membrane modules (plate and frame, tubular, spiral wound, and hollow fiber) and membrane characterization are provided. The review also discusses membrane cleaning and different pre-treatment technologies in place for RO desalination, such as feed-water pre-treatment and biocides. RO pre-treatment technologies, which include conventional (e.g., coagulationflocculation, media filtration, disinfection, scale inhibition) and non-conventional (e.g., MF, UF, and NF) are reviewed and their relative attributes are compared. As per the available literature, UF, MF and coagulation-flocculation are considered the most widely used pre-treatment technologies. In addition, this review discusses membrane fouling, which represents a serious challenge in RO processes due to its significant contribution to energy requirements and process economy (e.g., flux decline, permeate quality, membrane lifespan, increased feed pressure, increased pre-treatment and membrane maintenance cost). Different membrane fouling types, such as colloidal, organic, inorganic, and biological fouling, are addressed in this review. Principles of RO process design and the embedded economic and energy considerations are discussed. In general, cost of water desalination has dropped to values that made it a viable option, comparable even to conventional water treatment methods. Finally, an overview of hybrid RO desalination processes and the current challenges faced by RO desalination processes are presented and discussed.

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Section: Additivesmentioning

confidence: 99%

Reverse osmosis desalination: A state-of-the-art review

et al. 2019

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“…This is due to the small particles changing the membrane performance. The presence of nanocomposites may improve surface properties of membranes such as hydrophilicity/hydrophobicity, porosity, zeta potential, and antibacterial properties [63,64]. For example, Bano et al [65] compared the influence of TFC and TFN properties on water flux and salt retention.…”

Section: Advantages and Disadvantages Of Tfc/tfn Membranesmentioning

confidence: 99%

Preparation of Polymer Membranes by In Situ Interfacial Polymerization

Adamczak

Kamińska

Bohdziewicz

2019

International Journal of Polymer Science

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Membranes currently have a wide application in sewage treatment and water purification processes, in seawater desalination, and in various technological processes where high product purity is required. Deposition of an ultrathin skin layer of TFC (thin-film composite) and TFN (thin-film nanocomposite) onto the surface of membranes is discussed in this article. Their presence improves membrane properties such as retention of impurities and permeability. The aim of this paper is to present the current state of knowledge about the methods of preparing composite and nanocomposite membranes. The properties of the prepared TFC membranes can be modified by changing the type and concentration of the reacting monomers, and the physical conditions in which the membrane preparation process itself is carried out are also significant. Additionally, the properties of TFN membranes can be further modified with nanocomposites. The membranes are characterized by different properties not only because they have nanoparticles in their structure but also because their concentration and the way they are blended into the membrane structure were changed. This paper provides information on modifications of TFN membranes with nanoparticles, as well as modification by changes in polymerization reaction conditions and monomer concentration. Examples of the use of TFN and TFC membranes are also presented.

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“…For instance, the substrate with low transport resistance can be fabricated by optimizing the polymeric dope formulation while selective layer can be optimized for high water flux without compromising salt rejection . In recent years, to fabricate the thin‐film nanocomposite (TFN) membranes with improved performance, various types of nanomaterials such as titanium dioxide, zeolite, carbon nanotubes, silica, gold nanoparticle, graphene oxide and alumina have been incorporated in either the porous substrate or the active layer or both layers of TFC RO membranes …”

Section: Introductionmentioning

confidence: 99%

“…[14][15][16] In recent years, to fabricate the thin-film nanocomposite (TFN) membranes with improved performance, various types of nanomaterials such as titanium dioxide, zeolite, carbon nanotubes, silica, gold nanoparticle, graphene oxide and alumina have been incorporated in either the porous substrate or the active layer or both layers of TFC RO membranes. [17][18][19][20][21][22][23][24] In this work, a new type of TFN membrane was fabricated by incorporating S-Beta zeolite nanoparticles into PA selective layer during interfacial polymerization (IP) process. S-Beta zeolite was self-synthesized based on environmentally friendly method without using organic solvents and templates.…”

Section: Introductionmentioning

confidence: 99%

A Thin Film Nanocomposite Reverse Osmosis Membrane Incorporated with S‐Beta Zeolite Nanoparticles for Water Desalination

et al. 2020

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A new type of reverse osmosis (RO) membrane incorporating S‐Beta zeolite nanoparticles was synthesized through interfacial polymerization of m‐phenylenediamine and trimesoyl chloride on the surface of nanoporous membrane support. The presence of S‐Beta zeolite in the polyamide layer of RO membrane was detected by scanning electron microscope equipped with energy dispersive X‐ray spectroscope. The impacts of S‐Beta zeolite loading ranging from 0.01 to 0.1 wt% on the separation performance of membrane were further studied and the results showed that the optimal S‐Beta zeolite for RO membrane was at 0.05 wt%. Compared to the control RO membrane without nanoparticles that showed water flux of 25.36 L/(m2.h) and NaCl rejection of 97%, the membrane incorporated with optimal zeolite loading exhibited better performance (65.25 L/(m2.h) and 97.33%) when tested using 1500 ppm NaCl solution at 300 psi.

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Evaluation of thin film nanocomposite reverse osmosis membranes for long-term brackish water desalination performance

Cited by 43 publications

References 50 publications

Reverse osmosis desalination: A state-of-the-art review

Reverse osmosis desalination: A state-of-the-art review

Preparation of Polymer Membranes by In Situ Interfacial Polymerization

A Thin Film Nanocomposite Reverse Osmosis Membrane Incorporated with S‐Beta Zeolite Nanoparticles for Water Desalination

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