Facile development of comprehensively fouling-resistant reduced polyketone-based thin film composite forward osmosis membrane for treatment of oily wastewater

Gonzales, Ralph Rolly; Zhang, Lei; Sasaki, Yuji; Kushida, Wataru; Matsuyama, Hideto; Shon, Ho Kyong

doi:10.1016/j.memsci.2021.119185

Cited by 36 publications

(7 citation statements)

References 30 publications

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“…In this way, the negative impact of ICP on the FO process is expected to be effectively weakened by constructing the porous electrospun support. The polymers which are used to fabricate FO membrane supports are mostly synthetic petroleum-based polymers, such as polysulfone (PSf), 40 poly(ether sulfone) (PES), 24 poly(vinyl chloride) (PVC), 41 polyacrylonitrile (PAN), 42 polyvinylidene fluoride (PVDF), 43 polyketone (PK), 44 and polyethylene (PE). 45 Factors like cost, mechanical stability, fouling propensity, hydrophilicity, chemical reactivity, and structural polarity should be considered for selecting a proper support layer in the FO system.…”

Section: = × Smentioning

confidence: 99%

Development of Superpermeable Wood-Based Forward Osmosis Membranes

Jiang

Rastgar

Mohammadnezhad

et al. 2023

ACS Sustainable Chem. Eng.

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Novel lignin-based membranes with excellent water permeability and salt rejection characteristics were developed for forward osmosis (FO) processes. The fabricated membranes are composed of three layers: (i) a bottom layer of nanofibrous electrospun sulfonated kraft lignin (SKL) (70 wt %) and poly(vinyl alcohol) (PVA) (30 wt %), (ii) an intermediate layer of PVAglutaraldehyde (GA) hydrogel, and (iii) a top thin film of a selective polyamide (PA) layer. We coated the SKL-PVA support surface with four different PVA hydrogel concentrations (0.25, 0.5, 1, and 2 wt %). Increasing the concentration of the PVA hydrogel, the thickness of the deposited layer was increased accordingly. After forming the PA layer on top of the PVA hydrogel layer by the interfacial polymerization reaction, lignin-based thin film composite (LTFC-X) membranes were obtained, in which X denotes the PVA hydrogel concentration. According to the cross-sectional TEM images, the thickness of the deposited PA layer dropped from 450 nm on the LTFC-0.25 membrane to less than 60 nm in the LTFC-1 membrane. However, a further increase in the PVA hydrogel concentration enhanced the PA layer thickness to over 250 nm. Among all synthesized membranes, the LTFC-0.5 membrane demonstrated the lowest structural parameter (S) of 191.67 ± 5.88 μm, resulting in a minimal internal concentration polarization in this membrane. The FO performances of membranes were evaluated in two different configurations: the active PA layer facing the feed solution (ALFS) and the PA layer facing the draw solution (ALDS). The LTFC-0.5 membrane provided maximum water flux (J w ) in both ALDS (61.33 ± 2.85 LMH) and ALFS (56.60 ± 2.99 LMH) modes. The LTFC-0.5 membrane also showed the lowest specific salt flux (J s /J w ) of 0.087 ± 0.004 g/L among all fabricated membranes in the ALDS mode. However, the LTFC-1 membrane provided the best performance in the ALFS mode with a minimum J s /J w value of 0.090 ± 0.011 g/L.

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Section: = × Smentioning

confidence: 99%

Development of Superpermeable Wood-Based Forward Osmosis Membranes

Jiang

Rastgar

Mohammadnezhad

et al. 2023

ACS Sustainable Chem. Eng.

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“…where Re is the Reynolds number, Sc is the Schmidt number and L is the characteristic length (m) of the respective channel. Re and Sc can be determined using eqn (19) and (20).…”

Section: Environmental Science: Nano Papermentioning

confidence: 99%

“…The support membrane with high permeability is beneficial to improve the water flux of the FO composite membrane. Currently, the main porous substrate materials used for the FO composite membrane are polyethersulfone (PES), 14 polysulfone (PSF), 15 polyvinylidene fluoride (PVDF) 16,17 and polyvinyl chloride (PVC) 8 as well as several other polymer materials such as polyvinyl alcohol (PVA), 18 reduced aliphatic polyketone (rPK) 19 and cellulose acetate (CA). 20 Incorporating hydrophilic particles such as molybdenum disulfide (MoS 2 ), 14 nano titanium dioxide (TiO 2 ), 20 quaternized poly phenylene oxide (QPPO), 21 graphene oxide quantum dots 22 and carbon nanomaterial (CNM) 23 into the support membrane can effectively increase membrane porosity and permeability.…”

Section: Introductionmentioning

confidence: 99%

Construction of facilitated mass transfer composite membranes with triple-layer water nanochannel architecture for forward osmosis process using cGO-coated polysulfone separation membrane as the substrate

Shi

et al. 2022

Environ. Sci.: Nano

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“…For example, PK membranes modified with silica particles have high permeance and rejection, and oil droplets deposited on the membrane after filtration can be removed by simply washing them off 27 . Other PK membrane modifications, such as the deposition of a polydopamine coating 28 or a polyampholytic substance, 29 reduction using NaBH 4 , 30 alginate hydrogel deposition, 31 or alginate crosslinking, 32 have also been carried out; the resulting modified membranes had outstanding fouling resistance and flux recovery ability for O/W emulsion separation.…”

Section: Introductionmentioning

confidence: 99%

Influence of structure of porous polyketone microfiltration membranes on separation of water‐in‐oil emulsions

Watanabe

Nakagawa

Gonzales

et al. 2023

J of Applied Polymer Sci

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Pressure‐driven filtration is a suitable alternative to conventional methods for separation of surfactant‐stabilized water‐in‐oil (W/O) emulsions. In this work, porous polyketone (PK) membranes for W/O emulsion separation with outstanding organic solvent resistance were prepared by non‐solvent‐induced phase separation (NIPS). The porous PK membrane structures were controlled by changing the non‐solvent concentration in the coagulation bath. The water contact angle in oil increased as the methanol concentration in the coagulation bath increased because of the formation of a rougher membrane surface, implying higher under‐oil hydrophobicity. The PK membranes were able to separate several surfactant‐stabilized W/O emulsions consisting of various organic solvents, with high oil purity value (99.9%). Permeance increased with increasing methanol concentration in coagulation bath due to the increase in membrane pore size and porosity. The best performing membrane, prepared with 45 wt% methanol coagulation bath, showed over 4000 LMH/bar permeance using emulsions of different particle sizes. Furthermore, the relationship between permeance and the ratio of the PK membrane pore size to the W/O emulsion particle size suggested that the initial permeance was dependent on pore size. The PK membranes demonstrated huge potential for W/O emulsion separation because of their easily‐controlled structures, high under‐oil hydrophobicity, and high separation performance.

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Facile development of comprehensively fouling-resistant reduced polyketone-based thin film composite forward osmosis membrane for treatment of oily wastewater

Cited by 36 publications

References 30 publications

Development of Superpermeable Wood-Based Forward Osmosis Membranes

Development of Superpermeable Wood-Based Forward Osmosis Membranes

Construction of facilitated mass transfer composite membranes with triple-layer water nanochannel architecture for forward osmosis process using cGO-coated polysulfone separation membrane as the substrate

Influence of structure of porous polyketone microfiltration membranes on separation of water‐in‐oil emulsions

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