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https://hdl.handle.net/1822/65840
Título: | Azo dye mineralization by Phanerochaete chysosporium in a sequencing bath reactor |
Autor(es): | Wanderley, Carlos Ronald Pessoa Andrade, Marcus Vinícius Pereira, Luciana Silva, G. Pessoa, Kelly Rodrigues |
Palavras-chave: | Biodegradation Congo red Phanerochaete chrysosporium Sequential bioreactors |
Data: | 29-Nov-2018 |
Editora: | Instituto de Tecnologia do Paraná - TECPAR |
Revista: | Brazilian Archives of Biology and Technology |
Citação: | Wanderley, Carlos Ronald Pessoa; Andrade, Marcus Vinícius; Pereira, Luciana; Silva, G.; Pessoa, Kelly Rodrigues, Azo dye mineralization by Phanerochaete chysosporium in a sequencing bath reactor. Brazilian Archives of Biology and Technology, 61(e18180195), 2018 |
Resumo(s): | The mineralization of the azo dye congo red by the fungi Phanerochaete chrysosporium was studied in two sequential batch bioreactors (R1 and R2), operated in cycles of 48 h (step I) and 24 h (step II). In step I, glucose concentration was 1 g.L-1 in both reactors and in step II, 1 g.L-1 of glucose was maintained in R1, but R2 received no addition of glucose. In step I, the average dye removal efficiencies were 76 ± 29 % (R1) and 53 ± 15% (R2), while in step II the averages recorded for dye removal for R1 and R2 were 84 ± 15 and 70 ± 28%, respectively. The rates of dye removal were 0.04 h-1 in R1 and 0.03 h-1 in R2 in step I. Higher rates were obtained in step II, 0,07 h-1 and 0,02 h-1 for R1 and R2, respectively. The highest dye removal occurred in R1 and, in R2, the residual dye was further removed. Laccase was the oxidised at higher amount, in step I was 54 mol.min-1 for R1 and 38 molmin-1 for R2. The proposed treatment system was very effective in removing the azo dye, however the mineralization may not be complete and some by-products may have been formed, according to spectrofotometric analysis, were the peak corresponding to benzene, 220 nm, persisted. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/65840 |
DOI: | 10.1590/1678-4324-2018180195 |
ISSN: | 1516-8913 |
Versão da editora: | http://www.scielo.br/revistas/babt/iaboutj.htm |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_53810_1.pdf | 1,15 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons