Prospects of forward osmosis-based membranes for seawater mining: Economic analysis, limitations and opportunities

Abdul-Hussein, Shahad T.; Al-Furaiji, Mustafa H.; Meskher, Hicham; Ghernaout, Djamel; Fal, Mokhatar; ALotaibi, Abdulrahman M.; Alsalhy, Qusay F.

doi:10.1016/j.desal.2024.117477

Cited by 7 publications

(1 citation statement)

References 118 publications

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“…Its advantages include straightforward operation and the capability to employ low-quality heat sources, including waste heat and solar power. In contrast to pressure-driven desalination methods like reverse osmosis, the MD process potentially offers reduced energy requirements and a lesser propensity for membrane fouling [ 1 , 2 , 3 , 4 ]. Nevertheless, the primary challenge hindering the widespread adoption of the MD process in desalination is the absence of efficient membranes that simultaneously exhibit high vapor permeability, effective salt rejection, robust thermal stability, and excellent anti-fouling properties [ 5 , 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Bead-Containing Superhydrophobic Nanofiber Membrane for Membrane Distillation

Talukder,

Pervez

et al. 2024

Membranes

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This study introduces an innovative approach to enhancing membrane distillation (MD) performance by developing bead-containing superhydrophobic sulfonated polyethersulfone (SPES) nanofibers with S-MWCNTs. By leveraging SPES’s inherent hydrophobicity and thermal stability, combined with a nanostructured fibrous configuration, we engineered beads designed to optimize the MD process for water purification applications. Here, oxidized hydrophobic S-MWCNTs were dispersed in a SPES solution at concentrations of 0.5% and 1.0% by weight. These bead membranes are fabricated using a novel electrospinning technique, followed by a post-treatment with the hydrophobic polyfluorinated grafting agent to augment nanofiber membrane surface properties, thereby achieving superhydrophobicity with a water contact angle (WCA) of 145 ± 2° and a higher surface roughness of 512 nm. The enhanced membrane demonstrated a water flux of 87.3 Lm−2 h−1 and achieved nearly 99% salt rejection efficiency at room temperature, using a 3 wt% sodium chloride (NaCl) solution as the feed. The results highlight the potential of superhydrophobic SPES nanofiber beads in revolutionizing MD technology, offering a scalable, efficient, and robust membrane for salt rejection.

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