Fouling-resistant ultrafiltration membranes prepared via co-deposition of dopamine/zwitterion composite coatings

Kirschner, Alon Y.; Chang, Chia Chih; Kasemset, Sirirat; Emrick, Todd; Freeman, Benny D.

doi:10.1016/j.memsci.2017.06.055

Cited by 60 publications

(47 citation statements)

References 70 publications

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“…Antai et al [173][174][175][176][177][178][179][180][181][182][183][184][185][186][187] ) within GO was done via three different methods such as Pre-incorporation, Post-incorporation and Filter-incorporation. Metal cations used for membrane preparation used were non-toxic, environment friendly and cheap [188][189][190][191][192][193][194].…”

Section: Role Of Graphene Oxide In Polymer Nano-composite Membranesmentioning

confidence: 99%

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Zahid¹,

Rashid²,

Akram³

et al. 2018

J Membr Sci Technol

183

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During last few decades, membrane technology has emerged as an efficient technique over conventional methods due to its high removal capacity, ease in operation and cost effectiveness for wastewater treatment and production of clean water. Membrane based separations are commonly based on polymeric membranes because of their higher flexibility, easily pore forming mechanism, low cost and smaller space for installation as compared to inorganic membranes. Commonly employed membrane fabrication phase inversion method has been shortly reviewed in this article. Major limitation of membrane based separations is fouling and polymeric membranes being hydrophobic in nature are more prone to fouling. Fouling is a deposition of various colloidal particles, macromolecules (polysaccharides, proteins), salts etc. on membrane surface and within pores thus impedes membrane performance, reduces flux and results in high cost. Modification of polymeric membranes due to its tailoring ability with nanomaterials such as metal based and carbon based results in polymeric nano-composite membranes with high antifouling characteristics. Nanomaterials impart high selectivity, permeability, hydrophilicity, thermal stability, mechanical strength, and antibacterial properties to polymeric membranes via blending, coating etc. modification methods. Characterization techniques has also discussed in later section for studying morphological properties and performance of polymer nano-composite membranes. Graphical Abstract

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Section: Role Of Graphene Oxide In Polymer Nano-composite Membranesmentioning

confidence: 99%

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Zahid¹,

Rashid²,

Akram³

et al. 2018

J Membr Sci Technol

183

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show abstract

“…Thus, suggesting the biomass adaptation to the salinity condition [66]. Similarly, salinity and pH of [29] the wastewater did not affect the performance of both MBRs as the resulting permeates revealed comparable salt content with mean values of 4420 and 4410 mg/l for uncoated and coated PBM membranes, respectively.…”

Section: Effect Of Ph and Salinity On Mbrmentioning

confidence: 85%

“…Suitable membrane surface modification can represent another promising approach to mitigate the fouling [24][25][26]. Different approaches have been proposed so far in order to mitigate fouling formation by coating different materials such as other polymers (like polyvinyl alcohol (PVA)) [27]; silica nanoparticles [28], dopamine [29] and graphene-oxide [30].…”

Section: Introductionmentioning

confidence: 99%

Novel low-fouling membranes from lab to pilot application in textile wastewater treatment

Galiano

Friha

Deowan

et al. 2018

Journal of Colloid and Interface Science

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A novel antifouling coating based on the polymerization of a polymerisable bicontinuous microemulsion (PBM) was developed and applied for commercially available membranes for textile wastewater treatment. PBM coating was produced by polymerizing, on a polyethersulfone (PES) membrane, a bicontinuous microemulsion, realized by finely tuning its properties in terms of chemical composition and polymerization temperature. In particular, the PBM was prepared by using, as the surfactant component, inexpensive and commercially available dodecyltrimethylammonium bromide (DTAB). The coating exhibited a more hydrophilic and a smoother surface in comparison to uncoated PES surface, making the produced PBM membranes more resistant and less prone to be affected by fouling. The anti-fouling potential of PBM membranes was assessed by using humic acid (HA) as a model foulant, evaluating the water permeability decrease as an indicator of the fouling propensity of the membranes. PBM membrane performances in terms of dye rejection, when applied for model textile wastewater treatment, were also evaluated and compared to PES commercial ones. The PBM membranes were finally successfully scaled-up (total membrane area 0.33 m) and applied in a pilot membrane bioreactor (MBR) unit for the treatment of real textile wastewater.

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“…The threshold flux (TF) was defined by Field and Pearce as "useful to distinguish between regions of low fouling and high fouling both in direct-flow and crossflow systems" [10] . Thus far, the TF has been useful as a tool to characterize and compare the fouling resistance of different membranes, but it has not been defined in physical terms [11][12][13] . Based on the proposed models, a physical interpretation of the TF is suggested, which clarifies the transition between different fouling mechanisms occurring at the tipping point between slow and rapid fouling.…”

mentioning

confidence: 99%

“…As permeate flux increases, the ΔP of both foulants changes very slowly with time at low flux and more rapidly at higher flux, particularly above the TF. The TF is the flux below which the membrane fouls slowly and above which the membrane fouls rapidly [10,13] . As discussed in more detail below, TF values were measured for both foulants using flux stepping experiments.…”

mentioning

confidence: 99%

Fouling mechanisms in constant flux crossflow ultrafiltration

Kirschner¹,

Cheng²,

Paul³

et al. 2019

Journal of Membrane Science

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124

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Fouling-resistant ultrafiltration membranes prepared via co-deposition of dopamine/zwitterion composite coatings

Cited by 60 publications

References 70 publications

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Novel low-fouling membranes from lab to pilot application in textile wastewater treatment

Fouling mechanisms in constant flux crossflow ultrafiltration

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