Robust loose nanofiltration membrane with fast solute transfer for dye/salt separation

Wastewater and sludge valorisation: a novel approach for treatment and resource recovery to achieve circular economy concept

“…The production and growth of crops may be impacted if such contaminated effluent is used for irrigation (Rahman et al, 2018). For the treatment of wastewater from the dye industry, advanced oxidation processes, membrane filtration, microbial technologies, bio-electrochemical degradation, and photocatalytic degradation have been documented (Gao et al, 2023;Iqbal et al, 2023;Verma et al, 2023). In addition to assisting in the treatment of wastewater, innovative techniques including microalgae cultivation, biobased adsorbents, and membrane technologies also aid in the recovery of dyes and pigments that may be reused and recycled sustainably (Eskikaya et al, 2023;Xiong et al, 2023).…”

Low Fouling Polyelectrolyte Layer-by-Layer Self-Assembled Membrane for High Performance Dye/Salt Fractionation: Sequence Effect of Self-Assembly

“…Complete removal of dye and salt causes concentration polarization leading to the enhanced membrane fouling . In this regard, tight ultrafiltration (TUF) − and loose nanofiltration (LNF) − membranes have drawn much attention due to their good salt to organic selectivity. ,, Permeation of salt reduces the transmembrane resistance. Membranes having molecular weight cutoff (MWCO) in the range of >1000 g mol –1 to 5000 g mol –1 and 600–1000 g mol –1 may be termed as TUF and LNF membranes, respectively.…”