Removal of pollutants from an AMD from a coal mine by neutralization/precipitation followed by “in vivo” biosorption step with the microalgae Scenedesmus sp.
Autor(a) principal: | |
---|---|
Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/216206 |
Resumo: | This work evaluates the benefits of a complementary treatment step of acid mine drainage (AMD) using the algae Scenedesmus sp. in terms of algae biomass production, residual metal removal, and the toxicity of the discharged water. Conventional treatment by neutralization/precipitation of an AMD from a coal mine in Brazil was conducted with Ca(OH)2 at pH 8.7. Algal growth studies were performed in the treated AMD, with and without a nutrient supply. The raw e uent and treatments were compared in terms of residual concentration of metals and sulfate, conductivity, and toxicity with the Allium cepa and Daphnia magna test organisms. The results show that the conventional treatment allowed a major metal removal, reduction in the conductivity, and good indices in the toxicological parameters evaluated. The biosorption with in vivo microalgae improved the quality of the e uent for residual metals. No significant toxicity was observed to Allium cepa in all treatments performed, while the Daphnia magna test indicated a reduction in toxicity after the biosorption step. It was concluded that algae growth can be carried out in treated mine waters, providing algae biomass and helping to achieve the standards for water discharge. |
id |
UFRGS-2_2d3d7a35f909cd4cd6ac7b57a948d79d |
---|---|
oai_identifier_str |
oai:www.lume.ufrgs.br:10183/216206 |
network_acronym_str |
UFRGS-2 |
network_name_str |
Repositório Institucional da UFRGS |
repository_id_str |
|
spelling |
Santos, Karine Batista dosAlmeida, Vítor Otacílio deWeiler, JessicaSchneider, Ivo Andre Homrich2020-12-09T04:11:33Z20202075-163Xhttp://hdl.handle.net/10183/216206001119051This work evaluates the benefits of a complementary treatment step of acid mine drainage (AMD) using the algae Scenedesmus sp. in terms of algae biomass production, residual metal removal, and the toxicity of the discharged water. Conventional treatment by neutralization/precipitation of an AMD from a coal mine in Brazil was conducted with Ca(OH)2 at pH 8.7. Algal growth studies were performed in the treated AMD, with and without a nutrient supply. The raw e uent and treatments were compared in terms of residual concentration of metals and sulfate, conductivity, and toxicity with the Allium cepa and Daphnia magna test organisms. The results show that the conventional treatment allowed a major metal removal, reduction in the conductivity, and good indices in the toxicological parameters evaluated. The biosorption with in vivo microalgae improved the quality of the e uent for residual metals. No significant toxicity was observed to Allium cepa in all treatments performed, while the Daphnia magna test indicated a reduction in toxicity after the biosorption step. It was concluded that algae growth can be carried out in treated mine waters, providing algae biomass and helping to achieve the standards for water discharge.application/pdfengMinerals [recurso eletrônico]. Basel, SZ. Vol. 10, no. 8 (2020), Art. 711, 11 p.Drenagem ácida de minasBiossorçãoAlgasMetais : RemoçãoAcid mine drainageConventional treatmentBiosorptionAlgaeMetal removalToxicityRemoval of pollutants from an AMD from a coal mine by neutralization/precipitation followed by “in vivo” biosorption step with the microalgae Scenedesmus sp.Estrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001119051.pdf.txt001119051.pdf.txtExtracted Texttext/plain43570http://www.lume.ufrgs.br/bitstream/10183/216206/2/001119051.pdf.txt3c70de85d63ce36cd7b52129a946e546MD52ORIGINAL001119051.pdfTexto completo (inglês)application/pdf1319621http://www.lume.ufrgs.br/bitstream/10183/216206/1/001119051.pdf60180eec60eddebc25cde2db3eaab3fcMD5110183/2162062021-03-09 04:33:01.712472oai:www.lume.ufrgs.br:10183/216206Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-03-09T07:33:01Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Removal of pollutants from an AMD from a coal mine by neutralization/precipitation followed by “in vivo” biosorption step with the microalgae Scenedesmus sp. |
title |
Removal of pollutants from an AMD from a coal mine by neutralization/precipitation followed by “in vivo” biosorption step with the microalgae Scenedesmus sp. |
spellingShingle |
Removal of pollutants from an AMD from a coal mine by neutralization/precipitation followed by “in vivo” biosorption step with the microalgae Scenedesmus sp. Santos, Karine Batista dos Drenagem ácida de minas Biossorção Algas Metais : Remoção Acid mine drainage Conventional treatment Biosorption Algae Metal removal Toxicity |
title_short |
Removal of pollutants from an AMD from a coal mine by neutralization/precipitation followed by “in vivo” biosorption step with the microalgae Scenedesmus sp. |
title_full |
Removal of pollutants from an AMD from a coal mine by neutralization/precipitation followed by “in vivo” biosorption step with the microalgae Scenedesmus sp. |
title_fullStr |
Removal of pollutants from an AMD from a coal mine by neutralization/precipitation followed by “in vivo” biosorption step with the microalgae Scenedesmus sp. |
title_full_unstemmed |
Removal of pollutants from an AMD from a coal mine by neutralization/precipitation followed by “in vivo” biosorption step with the microalgae Scenedesmus sp. |
title_sort |
Removal of pollutants from an AMD from a coal mine by neutralization/precipitation followed by “in vivo” biosorption step with the microalgae Scenedesmus sp. |
author |
Santos, Karine Batista dos |
author_facet |
Santos, Karine Batista dos Almeida, Vítor Otacílio de Weiler, Jessica Schneider, Ivo Andre Homrich |
author_role |
author |
author2 |
Almeida, Vítor Otacílio de Weiler, Jessica Schneider, Ivo Andre Homrich |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Santos, Karine Batista dos Almeida, Vítor Otacílio de Weiler, Jessica Schneider, Ivo Andre Homrich |
dc.subject.por.fl_str_mv |
Drenagem ácida de minas Biossorção Algas Metais : Remoção |
topic |
Drenagem ácida de minas Biossorção Algas Metais : Remoção Acid mine drainage Conventional treatment Biosorption Algae Metal removal Toxicity |
dc.subject.eng.fl_str_mv |
Acid mine drainage Conventional treatment Biosorption Algae Metal removal Toxicity |
description |
This work evaluates the benefits of a complementary treatment step of acid mine drainage (AMD) using the algae Scenedesmus sp. in terms of algae biomass production, residual metal removal, and the toxicity of the discharged water. Conventional treatment by neutralization/precipitation of an AMD from a coal mine in Brazil was conducted with Ca(OH)2 at pH 8.7. Algal growth studies were performed in the treated AMD, with and without a nutrient supply. The raw e uent and treatments were compared in terms of residual concentration of metals and sulfate, conductivity, and toxicity with the Allium cepa and Daphnia magna test organisms. The results show that the conventional treatment allowed a major metal removal, reduction in the conductivity, and good indices in the toxicological parameters evaluated. The biosorption with in vivo microalgae improved the quality of the e uent for residual metals. No significant toxicity was observed to Allium cepa in all treatments performed, while the Daphnia magna test indicated a reduction in toxicity after the biosorption step. It was concluded that algae growth can be carried out in treated mine waters, providing algae biomass and helping to achieve the standards for water discharge. |
publishDate |
2020 |
dc.date.accessioned.fl_str_mv |
2020-12-09T04:11:33Z |
dc.date.issued.fl_str_mv |
2020 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/216206 |
dc.identifier.issn.pt_BR.fl_str_mv |
2075-163X |
dc.identifier.nrb.pt_BR.fl_str_mv |
001119051 |
identifier_str_mv |
2075-163X 001119051 |
url |
http://hdl.handle.net/10183/216206 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Minerals [recurso eletrônico]. Basel, SZ. Vol. 10, no. 8 (2020), Art. 711, 11 p. |
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.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
instname_str |
Universidade Federal do Rio Grande do Sul (UFRGS) |
instacron_str |
UFRGS |
institution |
UFRGS |
reponame_str |
Repositório Institucional da UFRGS |
collection |
Repositório Institucional da UFRGS |
bitstream.url.fl_str_mv |
http://www.lume.ufrgs.br/bitstream/10183/216206/2/001119051.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/216206/1/001119051.pdf |
bitstream.checksum.fl_str_mv |
3c70de85d63ce36cd7b52129a946e546 60180eec60eddebc25cde2db3eaab3fc |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS) |
repository.mail.fl_str_mv |
|
_version_ |
1801225003304222720 |