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Data de Publicação: | 2004 |
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Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Biotemas (Online) |
Texto Completo: | https://periodicos.ufsc.br/index.php/biotemas/article/view/23246 |
Resumo: | Efficiency of Chlorella minutissima microalgae in the treatment of swine-waste enriched with urea. The increasing process of pig breeding and the lack of adequate technologies to treat the residue originating from this activity in Brazil has been causing considerable environmental degradation and a threat to water resources. The utilization of microalgae to treat rural farming residue has been widely used in several countries with success. This presents many advantages, such as reducing polluting agents and providing a high biological and economic value of the produced algal biomass. The present work was developed with the microalgae Chlorella minutissima, with the objective of testing the process on a medium scale, under semi-controlled conditions, verifying the effect of urea addition and the pH control. The effects of these treatments on algal growth efficiency and on the capacity to remove polluting agents were observed experimentally. The results showed that the growth efficiency of the microalgae Chlorella minutissima, cultivated in residues 20 cm deep at a cod concentration of 280 mg/L was not influenced by added urea or pH control. The use of these algae in a mixed culture (algae and bacteria) reduced the COD, turbidity, total solids, volatile total solids, total suspended solids, ammonia, orthophosphate and total phosphate. |
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.Eficiência da microalga Chlorella minutissima no tratamento de resíduos de suinocultura enriquecido com uréiaEfficiency of Chlorella minutissima microalgae in the treatment of swine-waste enriched with urea. The increasing process of pig breeding and the lack of adequate technologies to treat the residue originating from this activity in Brazil has been causing considerable environmental degradation and a threat to water resources. The utilization of microalgae to treat rural farming residue has been widely used in several countries with success. This presents many advantages, such as reducing polluting agents and providing a high biological and economic value of the produced algal biomass. The present work was developed with the microalgae Chlorella minutissima, with the objective of testing the process on a medium scale, under semi-controlled conditions, verifying the effect of urea addition and the pH control. The effects of these treatments on algal growth efficiency and on the capacity to remove polluting agents were observed experimentally. The results showed that the growth efficiency of the microalgae Chlorella minutissima, cultivated in residues 20 cm deep at a cod concentration of 280 mg/L was not influenced by added urea or pH control. The use of these algae in a mixed culture (algae and bacteria) reduced the COD, turbidity, total solids, volatile total solids, total suspended solids, ammonia, orthophosphate and total phosphate. 0 acelerado crescimento da suinocultura, e a carência de tecnologias adequadas para o tratamento dos resíduos oriundos desta atividade, tem causado uma grande degradação ambiental com comprometimento dos recursos hídricos. 0 uso de microalgas para o tratamento de resíduos das atividades agro-pecuárias tem sido uma pi-Mica muito utilizada em vários 'Daises por apresentar muitas vantagens, pois além de ajudar na purificação dos efluentes, a biomassa algal produzida tem alto valor biológico e econômico. 0 presente trabalho foi desenvolvido com a microalga Chlorella minutissima. Com o objetivo de testar o processo em média escala, sob condições semicontroladas, verificou-se o efeito da adição de uréia no dejeto e o controle de pH através da suspensão da aeração. 0 efeito destes tratamentos sobre a eficiência do crescimento algal, bem como, a sua capacidade de remoção de agentes poluidores foi observada. Os resultados obtidos permitem concluir que a eficiência de crescimento da microalga Chlorella minutissima, cultivada em meio de dejeto, com profundidade de 20 cm e numa concentração correspondente a 280 mg/L de DQO, não foi influenciada pela adição de ureia e o controle de pH quanto ao número de células. A microadga cultivada num sistema mixotrófico (alga e bacteria) é eficiente na redução da DQO, turbidez, sólidos totais, sólidos totais voláteis, sólidos suspensos totais, amônia, ortofosfato e fósforo total.Universidade Federal de Santa Catarina2004-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/biotemas/article/view/23246Biotemas; v. 17 n. 2 (2004); 7-262175-79250103-1643reponame:Biotemas (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/biotemas/article/view/23246/20967Copyright (c) 2004 João Bosco Rozas Rodrigues, Paulo Belli Filhohttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessRodrigues, João Bosco RozasBelli Filho, Paulo2022-11-21T11:17:16Zoai:periodicos.ufsc.br:article/23246Revistahttp://www.biotemas.ufsc.br/index.htmPUBhttps://periodicos.ufsc.br/index.php/biotemas/oai||carlospinto@ccb.ufsc.br2175-79250103-1643opendoar:2022-11-21T11:17:16Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
. Eficiência da microalga Chlorella minutissima no tratamento de resíduos de suinocultura enriquecido com uréia |
title |
. |
spellingShingle |
. Rodrigues, João Bosco Rozas |
title_short |
. |
title_full |
. |
title_fullStr |
. |
title_full_unstemmed |
. |
title_sort |
. |
author |
Rodrigues, João Bosco Rozas |
author_facet |
Rodrigues, João Bosco Rozas Belli Filho, Paulo |
author_role |
author |
author2 |
Belli Filho, Paulo |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Rodrigues, João Bosco Rozas Belli Filho, Paulo |
description |
Efficiency of Chlorella minutissima microalgae in the treatment of swine-waste enriched with urea. The increasing process of pig breeding and the lack of adequate technologies to treat the residue originating from this activity in Brazil has been causing considerable environmental degradation and a threat to water resources. The utilization of microalgae to treat rural farming residue has been widely used in several countries with success. This presents many advantages, such as reducing polluting agents and providing a high biological and economic value of the produced algal biomass. The present work was developed with the microalgae Chlorella minutissima, with the objective of testing the process on a medium scale, under semi-controlled conditions, verifying the effect of urea addition and the pH control. The effects of these treatments on algal growth efficiency and on the capacity to remove polluting agents were observed experimentally. The results showed that the growth efficiency of the microalgae Chlorella minutissima, cultivated in residues 20 cm deep at a cod concentration of 280 mg/L was not influenced by added urea or pH control. The use of these algae in a mixed culture (algae and bacteria) reduced the COD, turbidity, total solids, volatile total solids, total suspended solids, ammonia, orthophosphate and total phosphate. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsc.br/index.php/biotemas/article/view/23246 |
url |
https://periodicos.ufsc.br/index.php/biotemas/article/view/23246 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/biotemas/article/view/23246/20967 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2004 João Bosco Rozas Rodrigues, Paulo Belli Filho http://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2004 João Bosco Rozas Rodrigues, Paulo Belli Filho http://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina |
publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina |
dc.source.none.fl_str_mv |
Biotemas; v. 17 n. 2 (2004); 7-26 2175-7925 0103-1643 reponame:Biotemas (Online) instname:Universidade Federal de Santa Catarina (UFSC) instacron:UFSC |
instname_str |
Universidade Federal de Santa Catarina (UFSC) |
instacron_str |
UFSC |
institution |
UFSC |
reponame_str |
Biotemas (Online) |
collection |
Biotemas (Online) |
repository.name.fl_str_mv |
Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC) |
repository.mail.fl_str_mv |
||carlospinto@ccb.ufsc.br |
_version_ |
1799940552227028992 |