Ben Ali R. auteur aut IRD Ben Ouada S. auteur aut IRD Leboulanger Christophe auteur aut IRD Ammar J. auteur aut IRD Sayadi S. auteur aut IRD Ben Ouada H. auteur aut IRD text journalArticle eng text/pdf born digital access The Chlorophyta Picocystis sp. isolated from a Tunisian household sewage pond appears promising for effective removal of Bisphenol A (BPA). Efficient and cost-effective technology for contaminants remediation relies on a tradeoff between several parameters such as removal efficiency, microorganism growth, and its tolerance to contaminant toxicity. This article demonstrates the optimum conditions achieving the highest removal rates and the minimal growth inhibition in batch cultures of Picocystis using response surface methodology. A central composite face-centered (CCF) design was used to determine the effects on removal and growth inhibition of four operating parameters: temperature, inoculum cell density, light intensity, and initial BPA concentration. Results showed that the maximal BPA removal was 91.36%, reached the optimal culture conditions of 30.7 degrees C, 25 x 10(5) cells ml(-1) inoculum density, 80.6 mu mol photons m(-2) s(-1) light intensity, and initial BPA concentration of 10 mg l(-1). Various substrate inhibition models were used to fit the experimental data, and robustness analysis highlighted the Tessier model as more efficient to account for the interaction between Picocystis and BPA and predict removal efficiency. These results revealed how Picocystis respond to BPA contamination and suggest that optimization of experimental conditions can be effectively used to maximize BPA removal in the treatment process. specialized Chlorophyta bioremediation optimization bisphenol A central composite face-centered design (CCF) removal TUNISIE 038 034 084 23 8 818-828 2021 1522-6514 https://www.documentation.ird.fr/hor/fdi:010080540 10.1080/15226514.2020.1859985 1522-6514 [F B010080540] https://www.documentation.ird.fr/hor/fdi:010080540 https://www.documentation.ird.fr/intranet/publi/2021/01/010080540.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2021-02-08 2025-02-24 fdi:010080540 fre