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Removal of amoxicillin from wastewater by self-made Polyethersulfone membrane using nanofiltration

Ahmad Moarefian1, Hossein Alizadeh Golestani2, Hooman Bahmanpour3

  • 1Department of Chemical Engineering, College of Science, Shahrood Branch, Islamic Azad University, Shahrood, Iran.

Journal of Environmental Health Science & Engineering
|November 8, 2014
PubMed

Insights

This study developed a novel nanofiltration (NF) membrane for removing amoxicillin (AMX) from wastewater. The membrane effectively removes AMX, especially at lower concentrations, showing its potential for antibiotic removal.

Area of Science:

  • Environmental Science
  • Materials Science
  • Chemical Engineering

Background:

  • Antibiotic contamination in wastewater poses a significant environmental and health risk.
  • Effective removal of antibiotics like amoxicillin (AMX) is crucial for wastewater treatment.
  • Nanofiltration (NF) membranes offer a promising technology for pollutant removal.

Purpose of the Study:

  • To investigate the performance of a self-made NF membrane for amoxicillin (AMX) removal from wastewater.
  • To evaluate the impact of operating conditions (pH, concentration, pressure, temperature) on membrane performance.
  • To characterize the self-made NF membrane's properties.

Main Methods:

  • Fabrication of a Polyethersulfone (PES)/Polyvinylpyrrolidone (PVP) NF membrane modified with Brij®58 surfactant.
  • Characterization of the membrane using water contact angle, zeta potential, ATR-FTIR, and SEM.
  • Testing AMX removal efficiency and permeation flux under varying operating parameters.

Main Results:

  • The self-made NF membrane achieved AMX rejection rates between 56.49% and 99.09%.
  • Permeation flux ranged from 15.14 L/m²h to 110.29 L/m²h.
  • AMX rejection decreased with increasing initial feed concentration; pH, pressure, and temperature had minimal effects.
  • Optimal removal was observed at pH 9.0, 298 K, 2 MPa, and 20 ppm initial AMX concentration.

Conclusions:

  • The self-made NF membrane demonstrates significant potential for amoxicillin removal from wastewater.
  • Performance is highly dependent on initial feed concentration, with better results at lower concentrations.
  • The developed membrane is recommended for effective AMX removal in wastewater treatment applications.
Keywords:
Amoxicillin removalNanofiltrationPolyethersulfone membraneWastewater treatment

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