Nanofiltration (NF) Membrane Processing in the Food Industry

Yadav, Diksha; Karki, Sachin; Ingole, Pravin G.

doi:10.1007/s12393-022-09320-4

Cited by 36 publications

(13 citation statements)

References 88 publications

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“…Polymer membrane technology has enormous applications in a variety of industrial processes such as wastewater treatment, pollutant removal, desalination, pharmaceutical, and in the last decades pressure retarded osmosis (PRO) for energy generation 7–12 . Polymer membranes have also emerged to be a gold standard for separating gas mixtures.…”

Section: Introductionmentioning

confidence: 99%

Inner‐coated highly selective thin film nanocomposite hollow fiber membranes for the mixture gas separation

Ingole

2022

J of Applied Polymer Sci

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Polyamide-based thin film nanocomposite (TFN) membranes were prepared by incorporating nanoparticles in an aqueous phase containing mphenylenediamine (MPD) and an organic phase containing trimesoyl chloride (TMC) by interfacial polymerization (IP) method. The 3-aminopropyltrimethoxy silane grafted mesoporous synthetic hectorite (APTMSH) was synthesized and added in an aqueous monomer solution while the IP. In this work, the TFN layer interfacial compatibility has been enhanced by building the covalent bond between APTMSH and other two monomers by IP method. The coating of the TFN selective layer was done on the inner surface of polysulfone hollow fiber membranes. The interesting results were obtained for the binary mixture gas separation containing water vapor/N 2 and CO 2 /CH 4 . Improved gas permeance and selectivity have been obtained using APTMSH-incorporated TFN membranes. The developed TFN membranes have been characterized using several physicochemical methods. The results show that with the addition of APTMSH in MPD solution up to 0.5 w/w% the best water vapor permeance 2485 GPU and CO 2 permeance 22.3 GPU were obtained along with water vapor/N 2 selectivity 725.5 and CO 2 /CH 4 selectivity 26.

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Section: Introductionmentioning

confidence: 99%

Inner‐coated highly selective thin film nanocomposite hollow fiber membranes for the mixture gas separation

Ingole

2022

J of Applied Polymer Sci

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“…Similarly, NF membranes can also remove a variety of pollutants such as dyes, micropollutants such as pharmaceuticals and dissolved oil droplets along with salts from the saline produced water (PW). [6][7][8] Treating contaminated wastewater is not only essential for the purification and recovery of water but it also minimizes or eliminates several water-borne diseases. These water-borne diseases affect humans and animals as such pollutants become part of food chains in living ecosystems and hence are considered a severe threat to the environment.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimization of amine functionalization of MCM-41 for its covalent decoration in nanofiltration membranes for purification of saline- and micropollutant-contaminated feeds

Waheed

Baig

Jillani

2023

Environ. Sci.: Water Res. Technol.

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“…These include: (1) simple pressure-driven process; (2) cost and energy efficiency; and (3) reduced thermal damage to high-value chemical products [ 8 ]. OSN application studies, such as refining active pharmaceutical ingredients and genotoxic impurities and removing free fatty acids generated in food production, have demonstrated the feasibility of OSN processes in various industries, including the pharmaceutical, food, petrochemical, and fine chemical sectors [ 4 , 6 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Improving the Separation Properties of Polybenzimidazole Membranes by Adding Acetonitrile for Organic Solvent Nanofiltration

et al. 2023

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In research on membranes, the addition of co-solvents to the polymer dope solution is a common method for tuning the morphology and separation performance. For organic solvent nanofiltration (OSN) applications, we synthesized polybenzimidazole (PBI) membranes with high separation properties and stability by adding acetonitrile (MeCN) to the dope solution, followed by crosslinking with dibromo-p-xylene. Accordingly, changes in the membrane structure and separation properties were investigated when MeCN was added. PBI/MeCN membranes with a dense and thick active layer and narrow finger-like macrovoids exhibited superior rejection properties in the ethanol solution compared with the pristine PBI membrane. After crosslinking, they displayed superior rejection properties (96.56% rejection of 366-g/mol polypropylene glycol). In addition, the membranes demonstrated stable permeances for various organic solvents, including acetone, methanol, ethanol, toluene, and isopropyl alcohol. Furthermore, to evaluate the feasibility of the modified PBI OSN membranes, ecamsule, a chemical product in the fine chemical industry, was recovered. Correspondingly, the efficient recovery of ecamsule from a toluene/methanol solution using the OSN process with PBI/MeCN membranes demonstrated their applicability in many fine chemical industries.

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Nanofiltration (NF) Membrane Processing in the Food Industry

Cited by 36 publications

References 88 publications

Inner‐coated highly selective thin film nanocomposite hollow fiber membranes for the mixture gas separation

Inner‐coated highly selective thin film nanocomposite hollow fiber membranes for the mixture gas separation

Optimization of amine functionalization of MCM-41 for its covalent decoration in nanofiltration membranes for purification of saline- and micropollutant-contaminated feeds

Improving the Separation Properties of Polybenzimidazole Membranes by Adding Acetonitrile for Organic Solvent Nanofiltration

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