Cross-Flow Treatment of PFAS in Water: Materials Challenges and Potential Solutions

A Review on Removal and Destruction of Per- and Polyfluoroalkyl Substances (PFAS) by Novel Membranes

“…The authors also confirm that membrane-PFOS interaction is reversible, while for the unmodified membrane it was based on irreversible adsorption, leading to partial pore blocking. To summarize, due to their relatively easy fabrication approaches and low cost, most of the membranes used for PFAS removal are polymeric, but a few of the recently reported work shows that silica and ceramic membranes are also employed for PFAS removal from wastewater [25,121]. Several aspects of these research papers are tabulated below (Table 3).…”

“…A negative charge was estimated to enhance the rejection of anionic PFAS molecules by electrostatic repulsion between the negatively charged membrane and anionic PFAS ( Figure 5 a,b), which can also help prevent fouling. Moreover, the authors implied that elevated pH would improve the rejection, as carboxyl groups at the membrane’s surface may be deprotonated, and therefore, the membrane’s negative charge will increase [ 121 ].…”

“…To summarize, due to their relatively easy fabrication approaches and low cost, most of the membranes used for PFAS removal are polymeric, but a few of the recently reported work shows that silica and ceramic membranes are also employed for PFAS removal from wastewater [ 25 , 121 ]. Several aspects of these research papers are tabulated below ( Table 3 ).…”

Antimicrobial activity of thin-film composite membranes functionalized with cellulose nanocrystals and silver nanoparticles via one-pot deposition and layer-by-layer assembly

“…10 Membrane processes have proven effective in removing a wide range of contaminants, including emerging pollutants such as microplastic, 11 pharmaceuticals, 12,13 and per/polyfluoroalkyl substances (PFAS). [14][15][16] High pressure membrane filtration processes, such as nanofiltration (NF) and reverse osmosis (RO), which utilize thin-film composite (TFC) membranes, are currently the industry standard and have demonstrated the ability to produce high-quality potable water. However, these TFC membranes are known to be susceptible to fouling and require diligent maintenance to ensure optimal performance.…”

Predicting pyrolysis decomposition of PFOA using computational nanoreactors: a thermodynamic study

“…Activated carbon treatment is the most studied for this process and the most common because of its effectiveness in absorbing substances that interface between solids and liquids, such as PFAS. 11,12 Removing the PFAS molecules is only the rst step towards resolving the issue. To ensure no further contamination, the PFAS molecules have to be destroyed.…”