Remoção do corante amaranto (c.i. 16.185) por biomassa de leveduras do gênero candida através de biosorção

Abstract

The capacity of adsorption of acid dye Amaranth was tested (C.I. 16.185) for the yeasts of the genus Candida in aqueous means, in different pH conditions (1,5 to 6,5), for 150 minutes of interaction, to 30oC. Besides this study, the analyses of medium cellular diameter of the yeasts were accomplished through multichannel counter of particles and the influence of the factor surface in the process of removal of the color. The results demonstrated that the yeasts C. catenulata e C. kefyr, presented larger likeness with the color, that C. rugosa and C. utilis, removing above 90% of the middle. The cellular surface of the yeasts seems not to influence in the removal index, and this, it is probably affected by the specific characteristics of each species of tested yeast. Have possibility of the use of yeasts of the genus Candida tested in the treatment of liquid residues containing dyes in biological reactors.