Removal of Bisphenol-A from Aqueous Solutions by Pseudomonas aeruginosa in Batch Reactors: Effect of Carbon Source, Temperature and Concentrations


KESKİNKAN O. , BALCI B.

INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING, cilt.16, 2018 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 16 Konu: 6
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1515/ijcre-2017-0125
  • Dergi Adı: INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING

Özet

This study was carried out to investigate the potential of Pseudomonas aeruginosa for the removal of bisphenol-A (BPA) from synthetic wastewater. To achieve this, BPA removal capability of P. aeruginosa with respect to BPA concentration, and temperature were examined in batch reactors. Experiments were conducted in the presence/absence of glucose, as a carbon source. The first set of experiments consisted of evaluating the kinetic of removal of BPA at different concentrations (5, 10, 20, and 30 mg BPA/L) without glucose. In the second set of experiments, three different glucose concentrations (0.5, 1.0, and 2.0 glucose/L) with BPA concentrations were tested. After settlement of the P. aeruginosa biomass in the shakers, supernatants and control groups were filtered and analyzed for BPA using high performance liquid chromatography. In the biotic study, BPA removal rates were between 63 % and 100 %. All concentrations of BPA under 20 mg/L were completely degraded at 25 and 35 degrees C at first step. However, 30 mgBPA/L was decreased to 8.56 mg/L by P. aeruginosa at first step at 25 degrees C. At the second step, all concentrations of BPA were completely degraded by the cells at the presence of glucose. Hence, it can be summarized that bisphenol A can be used by P. aeruginosa as an external carbon source in the wastewater environments.