CO2 Addition and Semicontinuous Feed Regime in Shaded HRAP—Pathogen Removal Performance
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3390/w14244047 http://hdl.handle.net/11449/246526 |
Resumo: | The influence of CO2 addition and feeding regime (continuous versus semicontinuous) on the removal of Pseudomonas aeruginosa, Clostridium perfringens, Staphylococcus, Enterococcus faecalis, and Escherichia coli (E. coli) from three shaded high-rate algal ponds (HRAPs) treating raw sewage (RS) was studied. The three HRAPs were operated at an analogous hydraulic retention time (HRT) for 5 days and with shading of 50%. The CO2 addition and feeding regime had no statistically significant influence on the removal of Pseudomonas aeruginosa, Clostridium perfringens, Staphylococcus sp., and Enterococcus faecalis, with 2.39–3.01, 2.07–2.31, 3.02–3.38, and 3.14–3.45 log units, respectively. However, the removal of E. coli decreased significantly with the feeding regime of 0.1 h d−1 and 2.23–3.29 log units. The productivity and the total suspended solids (TSS) removal efficiency were significantly improved with the semicontinuous feeding regime and CO2 addition. The highest productivity was obtained in the semicontinuous feeding regime, 5.93 g m2 d−1, while the TSS removal efficiency was similar between the semicontinuous feeding regime and CO2 addition (31–36%). The control of light intensity led to greater variability in the algal community, and was present in the three reactors, in different proportions, in the form of the microalgae Scenedesmus acutus, Scenedesmus obliquus, and Chlorella sp. |
id |
UNSP_5f455a15e766afada1b12dd17898ea2a |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/246526 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
CO2 Addition and Semicontinuous Feed Regime in Shaded HRAP—Pathogen Removal PerformanceClostridium perfringensdisinfectionpathogenic indicator organismsscrubbingsewageStaphylococcusspThe influence of CO2 addition and feeding regime (continuous versus semicontinuous) on the removal of Pseudomonas aeruginosa, Clostridium perfringens, Staphylococcus, Enterococcus faecalis, and Escherichia coli (E. coli) from three shaded high-rate algal ponds (HRAPs) treating raw sewage (RS) was studied. The three HRAPs were operated at an analogous hydraulic retention time (HRT) for 5 days and with shading of 50%. The CO2 addition and feeding regime had no statistically significant influence on the removal of Pseudomonas aeruginosa, Clostridium perfringens, Staphylococcus sp., and Enterococcus faecalis, with 2.39–3.01, 2.07–2.31, 3.02–3.38, and 3.14–3.45 log units, respectively. However, the removal of E. coli decreased significantly with the feeding regime of 0.1 h d−1 and 2.23–3.29 log units. The productivity and the total suspended solids (TSS) removal efficiency were significantly improved with the semicontinuous feeding regime and CO2 addition. The highest productivity was obtained in the semicontinuous feeding regime, 5.93 g m2 d−1, while the TSS removal efficiency was similar between the semicontinuous feeding regime and CO2 addition (31–36%). The control of light intensity led to greater variability in the algal community, and was present in the three reactors, in different proportions, in the form of the microalgae Scenedesmus acutus, Scenedesmus obliquus, and Chlorella sp.Post-Graduate Programme of Environmental Technology Faculty of Engineering Architecture and Urbanism and Geography Federal University of Mato Grosso do Sul, MSFederal Institute of Mato Grosso do Sul, Campus Jardim, MSSchool of Engineering São Paulo State University (Unesp), SPFederal Institute of Mato Grosso do Sul, Campus Aquidauana, MSSchool of Engineering São Paulo State University (Unesp), SPFederal University of Mato Grosso do SulFederal Institute of Mato Grosso do SulUniversidade Estadual Paulista (UNESP)Ruas, Graziele [UNESP]Lacerda, Sarah FariasNantes, Maria AliceSerejo, Mayara Leiteda Silva, Gustavo Henrique Ribeiro [UNESP]Boncz, Marc Árpad2023-07-29T12:43:26Z2023-07-29T12:43:26Z2022-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.3390/w14244047Water (Switzerland), v. 14, n. 24, 2022.2073-4441http://hdl.handle.net/11449/24652610.3390/w142440472-s2.0-85144600180Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengWater (Switzerland)info:eu-repo/semantics/openAccess2023-07-29T12:43:26Zoai:repositorio.unesp.br:11449/246526Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:16:16.261001Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
CO2 Addition and Semicontinuous Feed Regime in Shaded HRAP—Pathogen Removal Performance |
title |
CO2 Addition and Semicontinuous Feed Regime in Shaded HRAP—Pathogen Removal Performance |
spellingShingle |
CO2 Addition and Semicontinuous Feed Regime in Shaded HRAP—Pathogen Removal Performance Ruas, Graziele [UNESP] Clostridium perfringens disinfection pathogenic indicator organisms scrubbing sewage Staphylococcussp |
title_short |
CO2 Addition and Semicontinuous Feed Regime in Shaded HRAP—Pathogen Removal Performance |
title_full |
CO2 Addition and Semicontinuous Feed Regime in Shaded HRAP—Pathogen Removal Performance |
title_fullStr |
CO2 Addition and Semicontinuous Feed Regime in Shaded HRAP—Pathogen Removal Performance |
title_full_unstemmed |
CO2 Addition and Semicontinuous Feed Regime in Shaded HRAP—Pathogen Removal Performance |
title_sort |
CO2 Addition and Semicontinuous Feed Regime in Shaded HRAP—Pathogen Removal Performance |
author |
Ruas, Graziele [UNESP] |
author_facet |
Ruas, Graziele [UNESP] Lacerda, Sarah Farias Nantes, Maria Alice Serejo, Mayara Leite da Silva, Gustavo Henrique Ribeiro [UNESP] Boncz, Marc Árpad |
author_role |
author |
author2 |
Lacerda, Sarah Farias Nantes, Maria Alice Serejo, Mayara Leite da Silva, Gustavo Henrique Ribeiro [UNESP] Boncz, Marc Árpad |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Federal University of Mato Grosso do Sul Federal Institute of Mato Grosso do Sul Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Ruas, Graziele [UNESP] Lacerda, Sarah Farias Nantes, Maria Alice Serejo, Mayara Leite da Silva, Gustavo Henrique Ribeiro [UNESP] Boncz, Marc Árpad |
dc.subject.por.fl_str_mv |
Clostridium perfringens disinfection pathogenic indicator organisms scrubbing sewage Staphylococcussp |
topic |
Clostridium perfringens disinfection pathogenic indicator organisms scrubbing sewage Staphylococcussp |
description |
The influence of CO2 addition and feeding regime (continuous versus semicontinuous) on the removal of Pseudomonas aeruginosa, Clostridium perfringens, Staphylococcus, Enterococcus faecalis, and Escherichia coli (E. coli) from three shaded high-rate algal ponds (HRAPs) treating raw sewage (RS) was studied. The three HRAPs were operated at an analogous hydraulic retention time (HRT) for 5 days and with shading of 50%. The CO2 addition and feeding regime had no statistically significant influence on the removal of Pseudomonas aeruginosa, Clostridium perfringens, Staphylococcus sp., and Enterococcus faecalis, with 2.39–3.01, 2.07–2.31, 3.02–3.38, and 3.14–3.45 log units, respectively. However, the removal of E. coli decreased significantly with the feeding regime of 0.1 h d−1 and 2.23–3.29 log units. The productivity and the total suspended solids (TSS) removal efficiency were significantly improved with the semicontinuous feeding regime and CO2 addition. The highest productivity was obtained in the semicontinuous feeding regime, 5.93 g m2 d−1, while the TSS removal efficiency was similar between the semicontinuous feeding regime and CO2 addition (31–36%). The control of light intensity led to greater variability in the algal community, and was present in the three reactors, in different proportions, in the form of the microalgae Scenedesmus acutus, Scenedesmus obliquus, and Chlorella sp. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-12-01 2023-07-29T12:43:26Z 2023-07-29T12:43:26Z |
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/10.3390/w14244047 Water (Switzerland), v. 14, n. 24, 2022. 2073-4441 http://hdl.handle.net/11449/246526 10.3390/w14244047 2-s2.0-85144600180 |
url |
http://dx.doi.org/10.3390/w14244047 http://hdl.handle.net/11449/246526 |
identifier_str_mv |
Water (Switzerland), v. 14, n. 24, 2022. 2073-4441 10.3390/w14244047 2-s2.0-85144600180 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Water (Switzerland) |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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 |
|
_version_ |
1808129302601924608 |