Development of cellulose acetate-chitosan-metal organic framework forward osmosis membrane for recovery of water and nutrients from wastewater

Lakra, Reshma; Balakrishnan, Malini; Basu, Sudeshna

doi:10.1016/j.jece.2021.105882

Cited by 27 publications

(9 citation statements)

References 44 publications

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“…The nutrients in the concentrated feed wastewater are recovered as struvite by precipitating the reject water of reverse osmosis. 160 Pervaporation is a highly economical method for separating azeotrope mixtures, recovering heat-sensitive compounds, and eliminating low-concentrated noxious compounds from the aqueous streams. Xu et al (2022) reported the capability of the CS/ZIF-8 mixed matrix membrane to effectively separate methanol/dimethyl carbonate.…”

Section: Membrane Separationmentioning

confidence: 99%

See 1 more Smart Citation

Chitosan/metal organic frameworks for environmental, energy, and bio-medical applications: a review

Balakrishnan,

Jacob,

Dayanandan

et al. 2023

Mater. Adv.

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Section: Membrane Separationmentioning

confidence: 99%

“…The nutrients in the concentrated feed wastewater are recovered as struvite by precipitating the reject water of reverse osmosis. 160…”

Section: Applications Of Cs Mofsmentioning

confidence: 99%

Chitosan/metal organic frameworks for environmental, energy, and bio-medical applications: a review

Balakrishnan,

Jacob,

Dayanandan

et al. 2023

Mater. Adv.

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“…The CA membrane, a porous membrane material prepared by the acylation of cellulose with acetic anhydride, is widely used as an FO membrane, because of its favorable properties, such as good mechanical strength, wide availability, and relatively high hydrophilicity that endows it with a low fouling tendency and good water flux [91]. The cellulose triacetate (CTA) membrane has been the most commonly used CA membrane, and was the earliest commercial FO membrane used in the water treatment field [92]. For three decades from the 1990s, the CA membranes manufactured by HTI Co. were the only FO membranes produced on a full-scale production line.…”

Section: Ca Membranesmentioning

confidence: 99%

A Comprehensive Review on Forward Osmosis Water Treatment: Recent Advances and Prospects of Membranes and Draw Solutes

Zhu

Chen

et al. 2022

IJERPH

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Forward osmosis (FO) is an evolving membrane separation technology for water treatment and reclamation. However, FO water treatment technology is limited by factors such as concentration polarization, membrane fouling, and reverse solute flux. Therefore, it is of a great importance to prepare an efficient high-density porous membrane and to select an appropriate draw solute to reduce concentration polarization, membrane fouling, and reverse solute flux. This review aims to present a thorough evaluation of the advancement of different draw solutes and membranes with their effects on FO performance. NaCl is still widely used in a large number of studies, and several general draw solutes, such as organic-based and inorganic-based, are selected based on their osmotic pressure and water solubility. The selection criteria for reusable solutes, such as heat-recovered gaseous draw, magnetic field-recovered MNPs, and electrically or thermally-responsive hydrogel are primarily based on their industrial efficiency and energy requirements. CA membranes are resistant to chlorine degradation and are hydrophilic, while TFC/TFN exhibit a high inhibition of bio-adhesion and hydrolysis. AQPs are emerging membranes, due to proteins with complete retention capacity. Moreover, the development of the hybrid system combining FO with other energy or water treatment technologies is crucial to the sustainability of FO.

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“…It is desirable that an FO membrane exhibits a low specific reverse salt flux (high water flux and low reverse salt flux) during an FO operation . Usually, FO membranes can be constructed from different procedures: (1) interfacial polymerization (IP, thin film composite (TFC) membranes); (2) self-assembly method (layer-by-layer (LBL) membranes); and (3) phase inversion method (asymmetric membranes) . Among them, TFC-FO membranes are presently the most extensively employed membranes in FO operation because of their wide-ranging pH application and excellent FO efficiency. , They contain a double-layer structure with a porous flat-sheet support layer (fabricated via a phase inversion method) and a thin polyamide (PA) active layer (prepared via an IP process) .…”

Section: Introductionmentioning

confidence: 99%

Poly(methyl methacrylate)-block-polysulfone-poly(methyl methacrylate) Triblock Copolymer-Modified Support Layers for Forward Osmosis Membranes

Farazin,

Shakeri,

Mahdavi

2023

ACS Appl. Polym. Mater.

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In this work, poly(methyl methacrylate)-block-polysulfone-poly(methyl methacrylate) (PMMA-b-PSf-b-PMMA) as an amphiphilic block copolymer, which is appropriate for support layer modification of forward osmosis (FO) membranes, was prepared via an atom transfer radical polymerization (ATRP) method using a bromo-terminated PSf as a macroinitiator. First, the Br-terminated PSf macroinitiator was synthesized by esterification of the phenolic groups with α-halo-ester. Second, the PSf-Br macroinitiator was used to start the ATRP process of the MMA monomer, resulting in a PMMA-b-PSf-b-PMMA block copolymer. This block copolymer was combined with PSf during the phase inversion process. Using the PMMA-b-PSf-b-PMMA-modified support layers, we constructed thin film composite (TFC) membranes by interfacial polymerization. The effect of the PMMA-b-PSf-b-PMMA block copolymer content on the porosity, morphology, hydrophilicity, and polyamide layer (PA) properties was carefully studied using several characterizations. The results showed that the support layer characteristics including porosity, hydrophilicity, and pure water flux were considerably improved after PMMA-b-PSf-b-PMMA incorporation. In addition, the best performing TFC20 (modified with 20 wt % PMMA-b-PSf-b-PMMA) membrane exhibits a satisfactory FO performance: a high water flux of 34.09/17.52 LMH (pressure-retarded osmosis (PRO)/FO configuration) and a minimum specific reverse salt flux of 0.09/0.1 g/L (PRO/FO configuration) using DI water as the feed solution and 1 M NaCl as the draw solution. Furthermore, the water permeability was significantly improved with an optimal addition of the PMMA-b-PSf-b-PMMA block copolymer, which should be related to an increase in the PA layer roughness. Meanwhile, the structural parameter (S) value severely declined to 625.2 μm for TFC20 from 1925.6 μm for the control TFC. Therefore, the modification of the PSf substrate with the PMMA-b-PSf-b-PMMA copolymer is an effective method to alleviate the internal concentration polarization during the FO process.

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Development of cellulose acetate-chitosan-metal organic framework forward osmosis membrane for recovery of water and nutrients from wastewater

Cited by 27 publications

References 44 publications

Chitosan/metal organic frameworks for environmental, energy, and bio-medical applications: a review

Chitosan/metal organic frameworks for environmental, energy, and bio-medical applications: a review

A Comprehensive Review on Forward Osmosis Water Treatment: Recent Advances and Prospects of Membranes and Draw Solutes

Poly(methyl methacrylate)-block-polysulfone-poly(methyl methacrylate) Triblock Copolymer-Modified Support Layers for Forward Osmosis Membranes

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