Azo dye degradation by Phanerochaete chrysosporium in the medium enriched with nitrogen in the presence of primary co-substrate

Andrade, Marcus Vinicius Freire; Silva, Karla Mayara Lima da; Siqueira, João Paulo da Silva; Wanderley, Carlos Ronald Pessoa; Araújo, Rinaldo dos Santos; Marinho, Gloria; Rodrigues, Kelly

Azo dye degradation by Phanerochaete chrysosporium in the medium enriched with nitrogen in the presence of primary co-substrate

2013

Andrade, Marcus Vinicius Freire(Universidade de São Paulo Departamento de Hidráulica e Saneamento) | Silva, Karla Mayara Lima da(Instituto Federal do Ceará Programa de Pós Graduação em Tecnologia e Gestão Ambiental) | Siqueira, João Paulo da Silva(Instituto Federal do Ceará Programa de Pós Graduação em Tecnologia e Gestão Ambiental) | Wanderley, Carlos Ronald Pessoa(Instituto Federal do Ceará Departamento de Meio Ambiente) | Araújo, Rinaldo dos Santos(Instituto Federal do Ceará Programa de Pós Graduação em Tecnologia e Gestão Ambiental) | Marinho, Gloria(Instituto Federal do Ceará Programa de Pós Graduação em Tecnologia e Gestão Ambiental) | Rodrigues, Kelly(Instituto Federal do Ceará Programa de Pós Graduação em Tecnologia e Gestão Ambiental)

This work sought to evaluate the ability of fungi Phanerochaete chryosporium to degrade congo red azo dye in batch reactor, evaluate the influence of glucose and wheat bran as co-substrates on the removal of the dye in the medium and investigate the influence of ammonium chloride, ammonium nitrate and ammonium sulfate as the inorganic nitrogen source for the process. Wheat bran was not effective satisfactorily for the removal of dye and organic matter had no desired effect for the removal of color and organic matter and showed the lowest values of k2, 0.008 M-1.d-1and 0.0004 M-1.d-1, respectively. Glucose presented the best response with the highest final percentage of dye removal (97%) and rate of dye removal (0.017 M-1.d-1), without adding an external source of nitrogen.

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