Degradation of immobilized azo dyes by Klebsiella sp UAP-b5 isolated from maize bioadsorbent

被引：17

作者：

Elizalde-Gonzalez, M. P. ^{[1
]}

Fuentes-Ramirez, L. E. ^{[2
]}

Guevara-Villa, M. R. G. ^{[1
,2
]}

机构：

[1] Univ Autonoma Puebla, Ctr Quim, Inst Ciencias, Puebla 72571, Mexico

[2] Univ Autonoma Puebla, Ctr Invest Ciencias Microbiol, Inst Ciencias, Puebla 72571, Mexico

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 161卷 / 2-3期

关键词：

Reactive black 5; Biodegradation; Klebsiella; Maize waste; Immobilization; TEXTILE DYES; CORYNEBACTERIUM-GLUTAMICUM; MICROBIAL DECOLORIZATION; ENTEROBACTER-AGGLOMERANS; BJERKANDERA-ADUSTA; PNEUMONIAE RS-13; AQUEOUS-SOLUTION; METHYL RED; WASTE; BIODEGRADATION;

D O I：

10.1016/j.jhazmat.2008.04.023

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The degradation of two immobilized dyes by Klebsiella sp. UAP-b5 was studied. In batch experiments, the azo dyestuffs Basic Blue 41 and Reactive Black 5 were immobilized onto corn cobs by adsorption, and the adsorption process was characterized by a pseudo-second-order kinetic equation. Klebsiella sp. UAP-b5 was previously isolated from the corn waste and shown to decolorize these dyes in liquid Systems. Here, we demonstrate anaerobic decolorization and reductive biodegradation of these dyes by means of spectrophotometry, HPLC, and IR spectroscopy of the solid waste and desorption solutions. We also demonstrate adsorption of compounds that resemble known degradation products. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：769 / 774

页数：6

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