Novel chlorine resistant thin-film composite forward osmosis membrane: Preparation and performance evaluation in the regeneration of MEG aqueous solution

Samieirad, S.; Mousavi, Seyed Mahmoud; Saljoughi, Ehsan

doi:10.1016/j.cherd.2021.11.013

Cited by 10 publications

(5 citation statements)

References 72 publications

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“…In other words, reverse salt flux had a falling trend with incorporating FMWCNTs up to 0.3 wt% into the casting solution, and then increased with a further increase in nanofiller loading. RFS of the membranes, plotted in Figure 11, indicates the volume of water per the mass of reverse salt (Samieirad et al, 2022). As shown in Figure 11, RFS increased with incorporating up to 0.3 wt% FMWCNTS, and then dropped with a further addition of nanofiller concentration.…”

Section: Resultsmentioning

confidence: 99%

“…Reduced water flux and water recovery using the CAB/0.4% FMWCNTs membrane are due to the lower porosity (SEM images in Figure 3 and porosity variation in Figure 5) and hydrophilicity (increased WCA in 6) of the membrane and the reduced paths of water transport on account of FMWCNTs agglomeration. per the mass of reverse salt (Samieirad et al, 2022). As shown in Figure 11, RFS increased with incorporating up to 0.3 wt% FMWCNTS, and then dropped with a further addition of nanofiller concentration.…”

Section: Membrane Performance In Fomentioning

confidence: 86%

“…Reverse flux selectivity ( J RFS , L/g) was determined using the following equation (Samieirad et al, 2022):

J_{RFS} = \frac{J_{w}}{J_{s}}

In addition, FS was sampled at the end of the test to determine its turbidity and viscosity. Solution viscosity and turbidity were investigated at 25°C using a Cannon–Fenske capillary viscometer (Fisher scientific) and a TU‐2016 portable turbidity meter (Lutron Electronic), respectively.…”

Section: Methodsmentioning

confidence: 99%

“…Reverse flux selectivity (J RFS , L/g) was determined using the following equation (Samieirad et al, 2022):…”

Section: Concentration Of Bitter Orange Juicementioning

confidence: 99%

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Preparation and characterization of forward osmosis cellulose acetate butyrate/OH‐functionalized multiwalled carbon nanotube membrane for the concentration of bitter orange juice

Bidaki

Mousavi

Kiani

et al. 2023

J Food Process Engineering

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As an essential process in food industry, fruit dewatering should have the least impact on the nutritional values of the product. In this research, bitter orange juice was concentrated via the forward osmosis (FO) process for the first time. For this purpose, cellulose acetate butyrate (CAB)/OH-functionalized multiwalled carbon nanotubes (FMWCNTs) membranes were prepared using various nanofiller concentrations. The obtained membranes were characterized in terms of their morphology, porosity, water contact angle, chemical structure, tensile properties, and pure water flux. During the FO process, NaCl solution was applied as the draw solution (DS), and the concentration of NaCl was varied (1.2, 2.2, and 4.2 M) to assess its effect on the process performance. Increasing FMWCNTs loading in the casting solution up to 0.3 wt% boosted the membrane porosity, hydrophilicity, elastic modulus, and pure water flux. The CAB membrane incorporated with 0.3 wt% nanofiller and the DS with 4.2 M NaCl concentration represented the highest water flux (29.93 L/m 2 h) in the FO experiment and provided the maximum turbidity (1545 NTU) and viscosity (4.64 cP) of the treated feed. According to the obtained results, the developed CAB/FMWCNTs membrane proved promising in the FO concentration of fruit juice. Practical ApplicationsBitter orange juice was concentrated via the FO process using the developed CAB/OH-FMWCNTs membranes. According to the results, water flux, and thus the dewatering efficiency increased and reached its highest value using the CAB membrane incorporated with 0.3% FMWCNTs. Since membrane processes operate at low temperatures and do not deteriorate the concentrate quality, FO concentration of bitter orange juice using the membrane modified in this study can be a superior alternative to the conventional thermal methods.

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Section: Resultsmentioning

confidence: 99%

Section: Membrane Performance In Fomentioning

confidence: 86%

“…Reverse flux selectivity ( J RFS , L/g) was determined using the following equation (Samieirad et al, 2022):

J_{RFS} = \frac{J_{w}}{J_{s}}

Section: Methodsmentioning

confidence: 99%

“…Reverse flux selectivity (J RFS , L/g) was determined using the following equation (Samieirad et al, 2022):…”

Section: Concentration Of Bitter Orange Juicementioning

confidence: 99%

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Preparation and characterization of forward osmosis cellulose acetate butyrate/OH‐functionalized multiwalled carbon nanotube membrane for the concentration of bitter orange juice

Bidaki

Mousavi

Kiani

et al. 2023

J Food Process Engineering

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“…9 and 10 , respectively. The TFC membrane exhibits a typical ridge-valley morphology caused by the IP reaction 37 . Meanwhile, the surface morphologies and the top layer thicknesses of the membranes are affected by the incorporation of GO and GOP X s in the PA active layer.…”

Section: Resultsmentioning

confidence: 99%

Polyethylene glycol-grafted graphene oxide nanosheets in tailoring the structure and reverse osmosis performance of thin film composite membrane

Sanei,

Ghanbari,

Sharif

2023

Sci Rep

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Introducing hydrophilic polymers such as polyethylene glycol (PEG) within the polyamide (PA) layer of thin film composite (TFC) membranes helps achieve high water desalination performance. Here, PEGs of different molecular weights (X: 1500, 6000, 16,000 g/mol) are effectively introduced into the PA layer of TFC membranes utilizing PEG-grafted graphene oxide (GOPX) nanosheets and their effects on the physicochemical properties and reverse osmosis (RO) performance of the thin film nanocomposite (TFN) membranes are investigated. Among the TFNs prepared the GOP16000/TFN exhibits the best performance with 68% improvement in water flux and almost constant salt rejection compared to those of the bare TFC. The influence of PEG molecular weight on the RO performance of the membranes is interpreted by different surface and bulk hydrophilicity as well as thickness and surface roughness of PA layers of GOPX/TFNs. Furthermore, TFNs with thinner and smoother PA layers and thus higher water flux are obtained by dispersing GOPXs in the aqueous phase of the PA interfacial polymerization reaction than by dispersing them in the organic phase of the reaction. Finally, the high antifouling potential of TFNs containing PEG-grafted GOs is demonstrated.

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Efficiency evaluation of titanium oxide nanocomposite membrane in adsorption of chromium from oil effluents

Gheimasi

Sadr

Lorestani

et al. 2023

Environ Monit Assess

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Novel chlorine resistant thin-film composite forward osmosis membrane: Preparation and performance evaluation in the regeneration of MEG aqueous solution

Cited by 10 publications

References 72 publications

Preparation and characterization of forward osmosis cellulose acetate butyrate/OH‐functionalized multiwalled carbon nanotube membrane for the concentration of bitter orange juice

Preparation and characterization of forward osmosis cellulose acetate butyrate/OH‐functionalized multiwalled carbon nanotube membrane for the concentration of bitter orange juice

Polyethylene glycol-grafted graphene oxide nanosheets in tailoring the structure and reverse osmosis performance of thin film composite membrane

Efficiency evaluation of titanium oxide nanocomposite membrane in adsorption of chromium from oil effluents

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