Removal of p-cresol using wash waters from lipopeptide production

Autor(es)

Gomes, Wyllerson Evaristo ^[1] ; Correa, Amanda Arthuzo ^[1] ; Beatto, Thaina Godoy ^[1] ; Etchegaray, Augusto ^[1] ; Nogueira, Alessandra Borin ^[1] ; Mendes, Renata Kelly ^[1]

Afiliação do(s) autor(es)

^[1] Pontificia Univ Catolica Campinas PUC CAMPINAS, Fac Quim, Ctr Ciencias Exatas Ambientais & Tecnol, BR-13087571 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ENVIRONMENTAL TECHNOLOGY; SEP 2021.
• Citações Web of Science: 0

Resumo

This work shows the efficiency of wash waters from lipopeptide production as a remediation strategy to treat urban water samples contaminated with p-cresol. The harvesting step in surfactin production involved a centrifugation step, generating a major soluble fraction and a fraction that is adsorbed to the biomass. The adsorbed fraction was recovered by washing steps. These wash waters containing lipopeptides (mostly surfactins), were successfully used to adsorb and solubilize p-cresol. The method of decontamination applied to an artificially contaminated natural water was monitored using a biosensor based on laccase/magnetic nanoparticles. Given the amount of surfactin within the wash water, the removal of p-cresol from artificially contaminated water was approximately 46.0%. This result confirms the successful and sustainable application of surfactin-rich wash waters to remove p-cresol from artificially contaminated natural water. The adsorption mechanism is potentially based on a multi-layer adsorption process, considering Langmuir and Freundlich adsorption isotherms. (AU)

• Processo FAPESP: 13/20570-6 - Produção sustentável de biossurfactantes com aplicações para medicina e remediação ambiental
• Beneficiário: Augusto Etchegaray Júnior
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 18/16501-2 - Aplicação de um biossensor para avaliar a eficiência de remediação de águas urbanas contaminadas utilizando resíduos da produção de surfactina
• Beneficiário: Amanda Arthuzo Corrêa
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica