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Optimization of the Synthesis and Operational Parameters for Nom Removal With Response Surface Methodology During Nano-Composite Membrane Filtration Publisher Pubmed



Yousefi N1 ; Nabizadeh R1 ; Nasseri S1, 2 ; Khoobi M3, 4 ; Nazmara S1 ; Mahvi AH1, 2, 5, 6
Authors
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Authors Affiliations
  1. 1. Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences (TUMS), Tehran, Iran
  3. 3. Department of Pharmaceutical Biomaterials, Medical Biomaterials Research Center, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Department of Medicinal Chemistry, Faculty of Pharmacy, Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
  5. 5. Center for Solid Waste Research (CSWR), Institute for Environmental Research (IER), Tehran University of Medical Sciences (TUMS), Tehran, Iran
  6. 6. National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran

Source: Water Science and Technology Published:2018


Abstract

The aim of this study was to investigate membrane synthesis by interfacial polymerization methods, the application of synthesized nano-composite membrane for natural organic matters (NOMs) removal from water, evaluation of fouling mechanism and antifouling properties. Polysulfone (PSf) was selected as a porous ultrafiltration membrane support and interfacial polymerization was done using tannic acid (TA) and Trimesoyl chloride (TMC) with central composite design (CCD). The effects of TA and TMC monomer concentrations, reaction time and post treatment temperature was evaluated. The synthesized membrane was characterized by field emission scanning electron microscope (FESEM), atomic force microscopy (AFM), attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) and water contact angle. Based on the results, the optimum conditions for synthesizing nano-composite were: TA concentration of 0.27 g/L, TMC concentration of 0.22 g/L, reaction time of 68.29 min and temperature of 25.23°C. The predicted optimum operational conditions were a NOM concentration of 6.429 mg/L; time of 10.931 min and applied pressure of 1.039 bar. The potential applications of the synthesized nano-composite membranes with interfacial polymerization can enhance water treatment. © 2018 IWA Publishing.
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