Metal ferrite incorporated polysulfone thin-film nanocomposite membranes for wastewater treatment

Effluents from food, fermentation, and sugar industries contain a large quantity of glucose which has to be removed to limit the chemical oxygen demand (COD) of the water discharged. This work proposes novel thin-film nanocomposite (TFN) membranes incorporated with MgFe 2 O 4 and ZnFe 2 O 4 nanopart...

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Bibliographic Details
Published in:Environmental science and pollution research international 2021-03, Vol.28 (10), p.11915-11927
Main Authors: Nambikkattu, Jenny, Kaleekkal, Noel Jacob, Jacob, Joel Parayil
Format: Article
Language:English
Subjects:
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Chemical oxygen demand
Earth and Environmental Science
Ecotoxicology
Environment
Environmental and Energy Management
Environmental Chemistry
Environmental Health
Environmental science
Fermentation
Fermented food
Ferric Compounds
Food industry
Glucose
Magnesium ferrites
Mechanical properties
Membranes
Morphology
Nanocomposites
Nanoparticles
Polyamide resins
Polyamides
Polymers
Polysulfone
Polysulfone resins
Rejection
Salt rejection
Sodium chloride
Sol-gel processes
Sugar industry
Sulfones
Thin films
Waste Water Technology
Wastewater treatment
Water Management
Water Pollution Control
Water Purification
Wettability
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Summary:Effluents from food, fermentation, and sugar industries contain a large quantity of glucose which has to be removed to limit the chemical oxygen demand (COD) of the water discharged. This work proposes novel thin-film nanocomposite (TFN) membranes incorporated with MgFe 2 O 4 and ZnFe 2 O 4 nanoparticles to address this concern. The nanoparticles synthesized by the sol–gel method was extensively characterized and then incorporated into the active polyamide layer of the thin-film composite polysulfone membranes. The change in membrane morphology, wettability, chemical structure, and mechanical strength with the incorporation of nanoparticles was studied in detail. Membranes with 0.005 wt.% MgFe 2 O 4 nanoparticle exhibited highest glucose rejection (96.52 ± 2.35%) at 10 bar, 25 °C, and sufficiently high pure water flux (50.54 ± 1.92 L/m 2 h). This membrane also displayed 69.1 ± 5.12% salt rejection when challenged with 2000 ppm synthetic NaCl solution.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-020-08024-8