Commercial synthetic hydrotalcite as an adsorbent nanomaterial for removal of bacteria from contaminated water
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/34600 |
Resumo: | Layered double hydroxides (LDHs) are regarded as potential adsorbents for water treatment from a wide range of pollutants. However, there are only a few studies concerning application of LDHs for elimination of microorganisms from aquatic systems. In this work, experiments were conducted to investigate the efficiency of commercial synthetic hydrotalcite Mg6Al2(CO3)(OH)16∙4H2O as an adsorbent for water purification from fecal indicator bacteria Escherichia coli BIM B-378 and Enterococcus faecalis BIM B-1530. Our findings indicate that exposure for 4 h to hydrotalcite (5 g/L) in suspension resulted in the removal of about 40% of coliforms and 25% of enterococci from water, at a high bacterial load (2×1010 CFU/L), and the removal efficiency of E. coli and E. faecalis did not significantly change when both bacteria were present in water. In addition, the percentage of removed bacteria increased with increasing of hydrotalcite concentration in the suspension (0.5 to 10 g/L), contact time (1-7 h) and decrease of pH (5.5), and decreased at low incubation temperature (16°C). Finally, hydrotalcite did not exhibit bactericidal activity and retention of bacteria was found to be reversible. Therefore, our findings suggest that commercial synthetic hydrotalcite could be potentially used in technologies of water treatment from bacterial contamination. |
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Commercial synthetic hydrotalcite as an adsorbent nanomaterial for removal of bacteria from contaminated waterFecal indicator bacteriaLayered double hydroxidesSynthetic hydrotalciteWater treatmentLayered double hydroxides (LDHs) are regarded as potential adsorbents for water treatment from a wide range of pollutants. However, there are only a few studies concerning application of LDHs for elimination of microorganisms from aquatic systems. In this work, experiments were conducted to investigate the efficiency of commercial synthetic hydrotalcite Mg6Al2(CO3)(OH)16∙4H2O as an adsorbent for water purification from fecal indicator bacteria Escherichia coli BIM B-378 and Enterococcus faecalis BIM B-1530. Our findings indicate that exposure for 4 h to hydrotalcite (5 g/L) in suspension resulted in the removal of about 40% of coliforms and 25% of enterococci from water, at a high bacterial load (2×1010 CFU/L), and the removal efficiency of E. coli and E. faecalis did not significantly change when both bacteria were present in water. In addition, the percentage of removed bacteria increased with increasing of hydrotalcite concentration in the suspension (0.5 to 10 g/L), contact time (1-7 h) and decrease of pH (5.5), and decreased at low incubation temperature (16°C). Finally, hydrotalcite did not exhibit bactericidal activity and retention of bacteria was found to be reversible. Therefore, our findings suggest that commercial synthetic hydrotalcite could be potentially used in technologies of water treatment from bacterial contamination.Korean Society of Environmental Engineers2022-09-13T10:13:06Z2023-01-01T00:00:00Z2023info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/34600eng1226-102510.4491/eer.2022.063Sidarenka, Anastasiya V.Leanovich, Sviatlana I.Kalamiyets, Emiliya I.Vieira, Daniel E. L.Cardoso, João P. V.Tedim, JoãoSalak, Andrei N.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T12:06:48Zoai:ria.ua.pt:10773/34600Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:05:52.213747Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Commercial synthetic hydrotalcite as an adsorbent nanomaterial for removal of bacteria from contaminated water |
title |
Commercial synthetic hydrotalcite as an adsorbent nanomaterial for removal of bacteria from contaminated water |
spellingShingle |
Commercial synthetic hydrotalcite as an adsorbent nanomaterial for removal of bacteria from contaminated water Sidarenka, Anastasiya V. Fecal indicator bacteria Layered double hydroxides Synthetic hydrotalcite Water treatment |
title_short |
Commercial synthetic hydrotalcite as an adsorbent nanomaterial for removal of bacteria from contaminated water |
title_full |
Commercial synthetic hydrotalcite as an adsorbent nanomaterial for removal of bacteria from contaminated water |
title_fullStr |
Commercial synthetic hydrotalcite as an adsorbent nanomaterial for removal of bacteria from contaminated water |
title_full_unstemmed |
Commercial synthetic hydrotalcite as an adsorbent nanomaterial for removal of bacteria from contaminated water |
title_sort |
Commercial synthetic hydrotalcite as an adsorbent nanomaterial for removal of bacteria from contaminated water |
author |
Sidarenka, Anastasiya V. |
author_facet |
Sidarenka, Anastasiya V. Leanovich, Sviatlana I. Kalamiyets, Emiliya I. Vieira, Daniel E. L. Cardoso, João P. V. Tedim, João Salak, Andrei N. |
author_role |
author |
author2 |
Leanovich, Sviatlana I. Kalamiyets, Emiliya I. Vieira, Daniel E. L. Cardoso, João P. V. Tedim, João Salak, Andrei N. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Sidarenka, Anastasiya V. Leanovich, Sviatlana I. Kalamiyets, Emiliya I. Vieira, Daniel E. L. Cardoso, João P. V. Tedim, João Salak, Andrei N. |
dc.subject.por.fl_str_mv |
Fecal indicator bacteria Layered double hydroxides Synthetic hydrotalcite Water treatment |
topic |
Fecal indicator bacteria Layered double hydroxides Synthetic hydrotalcite Water treatment |
description |
Layered double hydroxides (LDHs) are regarded as potential adsorbents for water treatment from a wide range of pollutants. However, there are only a few studies concerning application of LDHs for elimination of microorganisms from aquatic systems. In this work, experiments were conducted to investigate the efficiency of commercial synthetic hydrotalcite Mg6Al2(CO3)(OH)16∙4H2O as an adsorbent for water purification from fecal indicator bacteria Escherichia coli BIM B-378 and Enterococcus faecalis BIM B-1530. Our findings indicate that exposure for 4 h to hydrotalcite (5 g/L) in suspension resulted in the removal of about 40% of coliforms and 25% of enterococci from water, at a high bacterial load (2×1010 CFU/L), and the removal efficiency of E. coli and E. faecalis did not significantly change when both bacteria were present in water. In addition, the percentage of removed bacteria increased with increasing of hydrotalcite concentration in the suspension (0.5 to 10 g/L), contact time (1-7 h) and decrease of pH (5.5), and decreased at low incubation temperature (16°C). Finally, hydrotalcite did not exhibit bactericidal activity and retention of bacteria was found to be reversible. Therefore, our findings suggest that commercial synthetic hydrotalcite could be potentially used in technologies of water treatment from bacterial contamination. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-09-13T10:13:06Z 2023-01-01T00:00:00Z 2023 |
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://hdl.handle.net/10773/34600 |
url |
http://hdl.handle.net/10773/34600 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1226-1025 10.4491/eer.2022.063 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Korean Society of Environmental Engineers |
publisher.none.fl_str_mv |
Korean Society of Environmental Engineers |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137713432035328 |