Discoloration of Reactive black 5 by individual and consortium of Rhodotorula mucilaginosa, Galactomyces pseudocandidum and Escherichia coli free and immobilized

Ingeniería e Investigación

María Alejandra Flórez-Restrepo¹  Madeleiner García Jiménez²  Nancy Johanna Pino Rodríguez²  Gustavo Antonio Peñuela Mesa²  Luisa María Múnera Porras²  Diego Fernando López Lugo² 

[1] Universidad de Antioquia;University of Antioquia;

关键词: Calcium alginate beads;    bagasse;    coffe hucks;    immobilized cells;    percentage of discoloration;   

DOI  :  10.15446/ing.investig.v38n3.68534

来源: DOAJ

【 摘 要 】

The textile industry is a generator of high volumes of waste water with a high content of pollutants such as azo dyes, which are recalcitrant and persistent in the environment, these ones have been of interest in the last decades for the entities in charge of the care of the environment. This study evaluated the ability to discolor of reactive black 5 (NR5) by a consortium and the microorganisms that constitute Rhodotorula mucilaginosa, Galactomyces pseudocandidum and Escherichia coli free and immobilized in calcium alginate, coffee husks and bagasse of sugar cane. The results show discoloration was evidenced, where the highest percentage corresponds to G. pseudocandidum (90,05%) and the lowest to R. mucilaginosa (79,31%). When comparing the percentages of discoloration between the free microorganisms and the immobilization matrices, it is observed that the former exhibit the highest percentages of discoloration. In addition, there are no significant differences between using cane bagasse or coffee husks as immobilization matrix.

【 授权许可】

Unknown