Simultaneous degradation of ciprofloxacin, amoxicillin, sulfathiazole and sulfamethazine, and disinfection of hospital effluent after biological treatment via photo-Fenton process under ultraviolet germicidal irradiation

Detalhes bibliográficos
Autor(a) principal: Perini, João A. Lima [UNESP]
Data de Publicação: 2018
Outros Autores: Tonetti, Adriano L., Vidal, Cristiane, Montagner, Cassiana C., Nogueira, Raquel F. Pupo [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.apcatb.2017.11.021
http://hdl.handle.net/11449/175489
Resumo: A UVC-assisted photo-Fenton process was applied to hospital wastewater that had been submitted to anaerobic treatment. Low iron (10 μM; 0.56 mg L−1) and H2O2 (500 μM; 17 mg L−1) concentrations were used at the natural pH of the effluent (pH ≈ 7.4). Citric acid was employed as a complexation agent, at a 1:1 ratio, in order to maintain Fe3+ soluble at this pH, avoiding extra procedures and costs associated with acidification/basification of the final effluent. The anaerobic process quantitatively reduced the biochemical oxygen demand (BOD5), chemical oxygen demand (COD) and total organic carbon (TOC), with low removal of antibiotics present in the wastewater. Degradation of the antibiotics ciprofloxacin, amoxicillin, sulfathiazole, and sulfamethazine was studied by spiking the anaerobic effluent at initial concentrations of 200 μg L−1. The antibiotics were efficiently degraded (80–95%) using UVC radiation alone, although under this condition, no DOC removal was observed after 90 min. Further additions of H2O2 and iron citrate increased the degradation rate constant (kobs), and 8% of DOC was removed. A lower pH resulted in higher kobs, although this was not essential for application of the photo-Fenton process. Irradiation with a germicidal lamp resulted in greater degradation of the antibiotics, compared to use of a black light lamp or sunlight, since the overall degradation was influenced by photolysis of the antibiotics, photolysis of H2O2, and the Fenton reaction. The photo-Fenton treatment could also be applied directly to the raw hospital wastewater, since no significant difference in degradation of the antibiotics was observed, compared to the anaerobic effluent. The photo-Fenton process under UVA and solar radiation reduced total coliforms and E. coli after 90 min. However, quantitative disinfection of these bacteria present in the Hospital effluent was only accomplished under UVC radiation.
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spelling Simultaneous degradation of ciprofloxacin, amoxicillin, sulfathiazole and sulfamethazine, and disinfection of hospital effluent after biological treatment via photo-Fenton process under ultraviolet germicidal irradiationAnaerobic treatmentBacterial disinfectionHydroxyl radicalPharmaceuticalsPhotolysisA UVC-assisted photo-Fenton process was applied to hospital wastewater that had been submitted to anaerobic treatment. Low iron (10 μM; 0.56 mg L−1) and H2O2 (500 μM; 17 mg L−1) concentrations were used at the natural pH of the effluent (pH ≈ 7.4). Citric acid was employed as a complexation agent, at a 1:1 ratio, in order to maintain Fe3+ soluble at this pH, avoiding extra procedures and costs associated with acidification/basification of the final effluent. The anaerobic process quantitatively reduced the biochemical oxygen demand (BOD5), chemical oxygen demand (COD) and total organic carbon (TOC), with low removal of antibiotics present in the wastewater. Degradation of the antibiotics ciprofloxacin, amoxicillin, sulfathiazole, and sulfamethazine was studied by spiking the anaerobic effluent at initial concentrations of 200 μg L−1. The antibiotics were efficiently degraded (80–95%) using UVC radiation alone, although under this condition, no DOC removal was observed after 90 min. Further additions of H2O2 and iron citrate increased the degradation rate constant (kobs), and 8% of DOC was removed. A lower pH resulted in higher kobs, although this was not essential for application of the photo-Fenton process. Irradiation with a germicidal lamp resulted in greater degradation of the antibiotics, compared to use of a black light lamp or sunlight, since the overall degradation was influenced by photolysis of the antibiotics, photolysis of H2O2, and the Fenton reaction. The photo-Fenton treatment could also be applied directly to the raw hospital wastewater, since no significant difference in degradation of the antibiotics was observed, compared to the anaerobic effluent. The photo-Fenton process under UVA and solar radiation reduced total coliforms and E. coli after 90 min. However, quantitative disinfection of these bacteria present in the Hospital effluent was only accomplished under UVC radiation.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Department of Analytical Chemistry Institute of Chemistry of Araraquara UNESP São Paulo State University, P.O. Box 355School of Civil Engineering Architecture and Urban Design-FEC UNICAMP University of Campinas, P.O. Box 6021Department of Analytical Chemistry Institute of Chemistry of Campinas UNICAMP University of Campinas, P.O. Box 6154Department of Analytical Chemistry Institute of Chemistry of Araraquara UNESP São Paulo State University, P.O. Box 355FAPESP: #2015/21732-5Universidade Estadual Paulista (Unesp)Universidade Estadual de Campinas (UNICAMP)Perini, João A. Lima [UNESP]Tonetti, Adriano L.Vidal, CristianeMontagner, Cassiana C.Nogueira, Raquel F. Pupo [UNESP]2018-12-11T17:16:01Z2018-12-11T17:16:01Z2018-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article761-771application/pdfhttp://dx.doi.org/10.1016/j.apcatb.2017.11.021Applied Catalysis B: Environmental, v. 224, p. 761-771.0926-3373http://hdl.handle.net/11449/17548910.1016/j.apcatb.2017.11.0212-s2.0-850340183802-s2.0-85034018380.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengApplied Catalysis B: Environmental3,152info:eu-repo/semantics/openAccess2023-10-29T06:05:58Zoai:repositorio.unesp.br:11449/175489Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:19:53.920780Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Simultaneous degradation of ciprofloxacin, amoxicillin, sulfathiazole and sulfamethazine, and disinfection of hospital effluent after biological treatment via photo-Fenton process under ultraviolet germicidal irradiation
title Simultaneous degradation of ciprofloxacin, amoxicillin, sulfathiazole and sulfamethazine, and disinfection of hospital effluent after biological treatment via photo-Fenton process under ultraviolet germicidal irradiation
spellingShingle Simultaneous degradation of ciprofloxacin, amoxicillin, sulfathiazole and sulfamethazine, and disinfection of hospital effluent after biological treatment via photo-Fenton process under ultraviolet germicidal irradiation
Perini, João A. Lima [UNESP]
Anaerobic treatment
Bacterial disinfection
Hydroxyl radical
Pharmaceuticals
Photolysis
title_short Simultaneous degradation of ciprofloxacin, amoxicillin, sulfathiazole and sulfamethazine, and disinfection of hospital effluent after biological treatment via photo-Fenton process under ultraviolet germicidal irradiation
title_full Simultaneous degradation of ciprofloxacin, amoxicillin, sulfathiazole and sulfamethazine, and disinfection of hospital effluent after biological treatment via photo-Fenton process under ultraviolet germicidal irradiation
title_fullStr Simultaneous degradation of ciprofloxacin, amoxicillin, sulfathiazole and sulfamethazine, and disinfection of hospital effluent after biological treatment via photo-Fenton process under ultraviolet germicidal irradiation
title_full_unstemmed Simultaneous degradation of ciprofloxacin, amoxicillin, sulfathiazole and sulfamethazine, and disinfection of hospital effluent after biological treatment via photo-Fenton process under ultraviolet germicidal irradiation
title_sort Simultaneous degradation of ciprofloxacin, amoxicillin, sulfathiazole and sulfamethazine, and disinfection of hospital effluent after biological treatment via photo-Fenton process under ultraviolet germicidal irradiation
author Perini, João A. Lima [UNESP]
author_facet Perini, João A. Lima [UNESP]
Tonetti, Adriano L.
Vidal, Cristiane
Montagner, Cassiana C.
Nogueira, Raquel F. Pupo [UNESP]
author_role author
author2 Tonetti, Adriano L.
Vidal, Cristiane
Montagner, Cassiana C.
Nogueira, Raquel F. Pupo [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade Estadual de Campinas (UNICAMP)
dc.contributor.author.fl_str_mv Perini, João A. Lima [UNESP]
Tonetti, Adriano L.
Vidal, Cristiane
Montagner, Cassiana C.
Nogueira, Raquel F. Pupo [UNESP]
dc.subject.por.fl_str_mv Anaerobic treatment
Bacterial disinfection
Hydroxyl radical
Pharmaceuticals
Photolysis
topic Anaerobic treatment
Bacterial disinfection
Hydroxyl radical
Pharmaceuticals
Photolysis
description A UVC-assisted photo-Fenton process was applied to hospital wastewater that had been submitted to anaerobic treatment. Low iron (10 μM; 0.56 mg L−1) and H2O2 (500 μM; 17 mg L−1) concentrations were used at the natural pH of the effluent (pH ≈ 7.4). Citric acid was employed as a complexation agent, at a 1:1 ratio, in order to maintain Fe3+ soluble at this pH, avoiding extra procedures and costs associated with acidification/basification of the final effluent. The anaerobic process quantitatively reduced the biochemical oxygen demand (BOD5), chemical oxygen demand (COD) and total organic carbon (TOC), with low removal of antibiotics present in the wastewater. Degradation of the antibiotics ciprofloxacin, amoxicillin, sulfathiazole, and sulfamethazine was studied by spiking the anaerobic effluent at initial concentrations of 200 μg L−1. The antibiotics were efficiently degraded (80–95%) using UVC radiation alone, although under this condition, no DOC removal was observed after 90 min. Further additions of H2O2 and iron citrate increased the degradation rate constant (kobs), and 8% of DOC was removed. A lower pH resulted in higher kobs, although this was not essential for application of the photo-Fenton process. Irradiation with a germicidal lamp resulted in greater degradation of the antibiotics, compared to use of a black light lamp or sunlight, since the overall degradation was influenced by photolysis of the antibiotics, photolysis of H2O2, and the Fenton reaction. The photo-Fenton treatment could also be applied directly to the raw hospital wastewater, since no significant difference in degradation of the antibiotics was observed, compared to the anaerobic effluent. The photo-Fenton process under UVA and solar radiation reduced total coliforms and E. coli after 90 min. However, quantitative disinfection of these bacteria present in the Hospital effluent was only accomplished under UVC radiation.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-11T17:16:01Z
2018-12-11T17:16:01Z
2018-05-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.apcatb.2017.11.021
Applied Catalysis B: Environmental, v. 224, p. 761-771.
0926-3373
http://hdl.handle.net/11449/175489
10.1016/j.apcatb.2017.11.021
2-s2.0-85034018380
2-s2.0-85034018380.pdf
url http://dx.doi.org/10.1016/j.apcatb.2017.11.021
http://hdl.handle.net/11449/175489
identifier_str_mv Applied Catalysis B: Environmental, v. 224, p. 761-771.
0926-3373
10.1016/j.apcatb.2017.11.021
2-s2.0-85034018380
2-s2.0-85034018380.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Applied Catalysis B: Environmental
3,152
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 761-771
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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