Investigation of internal concentration polarization reduction in forward osmosis membrane using nano-CaCO3 particles as sacrificial component

Wu, K.; Liu, Zhongnan; Yu, Haijun; Kang, Guodong; Xiao, Jie; Jin, Yixin; Cao, Yijun

doi:10.1016/j.memsci.2015.06.052

Cited by 82 publications

(21 citation statements)

References 39 publications

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“…to develop porous PSf substrates using calcium carbonate nanoparticles (CaCO 3 -NPs) as sacrificial additives [188]. The CaCO 3 -NPs distributed in PSf matrix were removed after the phase inversion process by etching with hydrochloric acid to enhance the substrate porosity.…”

Section: Mmentioning

confidence: 99%

Recent advances in nanomaterial-modified polyamide thin-film composite membranes for forward osmosis processes

Akther

Phuntsho

Chen

et al. 2019

Journal of Membrane Science

140

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Polyamide thin-film composite (PA TFC) membranes have attained much attention for forward osmosis (FO) applications in separation processes, water and wastewater treatment due to their superior intrinsic properties, such as high salt rejection and water permeability compared to the first generation of cellulose-based FO membranes. Nonetheless, several problems like fouling and trade-off between membrane selectivity and water permeability are hindering the progress of conventional PA TFC FO membranes for real applications. To overcome these issues, nanomaterials or chemical additives have been integrated into the TFC membranes. Nanomaterial-modified membranes have demonstrated significant improvement in their anti-fouling properties and FO performance. In addition, PA TFC membranes can be designed for specific applications like heavy metal removal and osmotic membrane bioreactor by using nanomaterials to modify their physicochemical properties (porosity, surface charge, hydrophilicity, membrane structure and mechanical strength). This review provides a comprehensive summary of the progress of nanocomposite PA TFC membrane since its first development for FO in the year 2012. The nanomaterialincorporated TFC membranes are classified into four categories based on the location of nanomaterial in/on the membranes: embedded inside the PA active layer, incorporated within the substrate, coated on the PA layer surface, or deposited as an interlayer between the substrate and the PA active layer. The key challenges still being confronted and the future research directions for nanocomposite PA TFC FO are also discussed.

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Section: Mmentioning

confidence: 99%

Recent advances in nanomaterial-modified polyamide thin-film composite membranes for forward osmosis processes

Akther

Phuntsho

Chen

et al. 2019

Journal of Membrane Science

140

View full text Add to dashboard Cite

show abstract

“…While most nanomaterials have been utilized as nanofillers that directly incorporated into the PA layer of substrate matrix, investigation has also been reported on the use of nanomaterials as sacrificial component during membrane fabrication to form a nanoporous membrane with high water flux. Liu et al used calcium carbonate (CaCO 3 ) nanoparticles as sacrificial additives to fabricate PSf substrate membranes [95]. The substrate was then etched with hydrochloric acid to create porous structure to improve the water permeability and reduce mass transfer resistance.…”

Section: Double-skinned Thin Film Compositementioning

confidence: 99%

Recent Progresses of Forward Osmosis Membranes Formulation and Design for Wastewater Treatment

Goh

Ismail

et al. 2019

Water

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Production of potable water or reclaimed water with higher quality are in demand to address water scarcity issues as well as to meet the expectation of stringent water quality standards. Forward osmosis (FO) provides a highly promising platform for energy-efficient membrane-based separation technology. This emerging technology has been recognized as a potential and cost-competitive alternative for many conventional wastewater treatment technologies. Motivated by its advantages over existing wastewater treatment technologies, the interest of applying FO technology for wastewater treatment has increased significantly in recent years. This article focuses on the recent developments and innovations in FO for wastewater treatment. An overview of the potential of FO in various wastewater treatment application will be first presented. The contemporary strategies used in membrane designs and fabrications as well as the efforts made to address membrane fouling are comprehensively reviewed. Finally, the challenges and future outlook of FO for wastewater treatment are highlighted.

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“…To find a simple and effective way to mitigate the effect of ICP on FO membrane performance, numerous efforts have been focused on the fabrication of low-structural-parameter (low-S) substrates (Kuang et al, 2016;Lutchmiah et al, 2014;Zirehpour, Rahimpour, & Ulbricht, 2017). However, most studies have focused on fabricating and modifying substrates (support layers) for TFC-FO membranes, which are fabricated via the PI method, i.e., flat sheet (Sairam, Sereewatthanawut, Li, Bismarck, & Livingston, 2011; and hollow fiber (Shi et al, 2011;Wang et al, 2010) structures.…”

Section: Alteration Of Substrate Structure To Maximize Water Fluxmentioning

confidence: 99%

Breakthroughs in the fabrication of electrospun-nanofiber-supported thin film composite/nanocomposite membranes for the forward osmosis process: A review

Obaid

Abdelkareem

Kook

et al. 2019

Critical Reviews in Environmental Science and Technology

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Research on membrane technology to provide fresh water while considering inextricably linked energy issues has resulted in remarkable accomplishments in the production of membranes, such as thin film composite (TFC) membranes, for relatively lowenergy desalination and wastewater reclamation via the forward osmosis (FO) process. Exhaustive and continuous efforts in the enlargement of TFC membranes to achieve an excellent combination of flux and selectivity have revealed a considerable need to fabricate an appropriate substrate. Electrospinning, as a cheap, scalable, and simple technique, is capable of producing electrospun mats with distinctive features. These features make electrospun nanofibers (ENs) a promising substrate for TFC-FO membranes, resulting in tremendous achievements in enhancing membrane performance. Since 2011, rapid progress has been made in applying electrospinning to fabricate ENs substrates for TFC-FO membranes. This paper reviews progress in the fabrication and modification of TFC membranes supported by ENs substrates for FO applications. The theoretical background of FO, discussing the main problems associated with the use of conventional substrates, progress in applying electrospinning to overcome these problems, including breakthrough achievements in ENs substrates for FO, the synthesis and characterization of such substrates, and a comparison of energy consumption between FO and other desalination techniques were covered.

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Investigation of internal concentration polarization reduction in forward osmosis membrane using nano-CaCO3 particles as sacrificial component

Cited by 82 publications

References 39 publications

Recent advances in nanomaterial-modified polyamide thin-film composite membranes for forward osmosis processes

Recent advances in nanomaterial-modified polyamide thin-film composite membranes for forward osmosis processes

Recent Progresses of Forward Osmosis Membranes Formulation and Design for Wastewater Treatment

Breakthroughs in the fabrication of electrospun-nanofiber-supported thin film composite/nanocomposite membranes for the forward osmosis process: A review

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