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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
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]
Total Authors: 8
Affiliation:
[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
Total Affiliations: 3
Document type: Journal article
Source: ENVIRONMENTAL TECHNOLOGY; v. 37, n. 7, p. 847-853, APR 2 2016.
Web of Science Citations: 8
Abstract

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)

FAPESP's process: 09/15984-0 - Bioenergy production from wastewaters and environmental fitting of liquid and solid wastes generated
Grantee:Marcelo Zaiat
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 10/19910-9 - Development of green chemistry strategies on chromatography and application to the evaluation of antibiotics degradation in wastewaters by fixed-bed anaerobic bioreactors
Grantee:Alvaro José dos Santos Neto
Support Opportunities: Regular Research Grants
FAPESP's process: 12/07153-4 - Analysis and identification of degradation products of antibiotics after treatment in anaerobic reactors
Grantee:Paulo Clairmont Feitosa de Lima Gomes
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 11/04527-8 - Development and validation of analytical methodologies for fluoroquinolones remotion in wastewaters treatment by fixed-bed biological reactores
Grantee:Maura Roquete Amparo
Support Opportunities: Scholarships in Brazil - Master