Sulfamethoxazole and ciprofloxacin removal using a horizontal-flow anaerobic immobilized biomass reactor

Autor(es)

Chatila, Sami ^[1] ; Amparo, Maura R. ^[2] ; Carvalho, Lucas S. ^[2] ; Penteado, Eduardo D. ^[1] ; Tomita, Ines N. ^[1] ; Santos-Neto, Alvaro J. ^[2] ; Lima Gomes, Paulo C. F. ^{[1, 3]} ; Zaiat, Marcelo ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Environm Engn, Sao Carlos Sch Engn EESC, Biol Proc Lab, Ctr Res Dev & Innovat Environm Engn, Sao Carlos, SP - Brazil

^[2] Univ Sao Paulo, Inst Chem Sao Carlos, Sao Carlos, SP - Brazil

^[3] Sao Paulo State Univ, UNESP, Inst Chem, Dept Analyt Chem, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ENVIRONMENTAL TECHNOLOGY; v. 37, n. 7, p. 847-853, APR 2 2016.
• Citações Web of Science: 8

Resumo

The antibiotics sulfamethoxazole (SMTX) and ciprofloxacin (CIP) are commonly used in human and veterinary medicine, which explains their occurrence in wastewater. Anaerobic reactors are low-cost, simple and suitable technology to wastewater treatment, but there is a lack of studies related to the removal efficiency of antibiotics. To overcome this knowledge gap, the objective of this study was to evaluate the removal kinetics of SMTX and CIP using a horizontal-flow anaerobic immobilized biomass reactor. Two different concentrations were evaluated, for SMTX 20 and 40 mu g L-1; for CIP 2.0 and 5.0 mu g L-1. The affluent and effluent analysis was carried out in liquid chromatography/tandem mass spectrometry (LC-MS/MS) with the sample preparation procedure using an off-line solid-phase extraction. This method was developed, validated and successfully applied for monitoring the affluent and effluent samples. The removal efficiency found for both antibiotics at the two concentrations studied was 97%. Chemical oxygen demand (COD) exhibited kinetic constants that were different from that observed for the antibiotics, indicating the absence of co-metabolism. Also, though the antibiotic concentration was increased, there was no inhibitory effect in the removal of COD and antibiotics. (AU)

• Processo FAPESP: 09/15984-0 - Produção de bioenergia no tratamento de águas residuárias e adequação ambiental dos efluentes e resíduos gerados
• Beneficiário: Marcelo Zaiat
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 10/19910-9 - Desenvolvimento de estratégias de química verde em cromatografia e aplicação na avaliação da degradação de antibióticos em águas residuárias por biorreatores anaeróbios de leito fixo
• Beneficiário: Alvaro José dos Santos Neto
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 12/07153-4 - Análise e identificação de produtos de degradação de resíduos de antibióticos após tratamento em reatores anaeróbios
• Beneficiário: Paulo Clairmont Feitosa de Lima Gomes
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 11/04527-8 - Desenvolvimento e validação de metodologias analíticas para avaliação da remoção de fluoroquinolonas no tratamento de águas residuárias em reatores biológicos de leito fixo
• Beneficiário: Maura Roquete Amparo
• Modalidade de apoio: Bolsas no Brasil - Mestrado