Decolorization of a mixture of textile dyes using Bjerkandera sp. BOL-13.

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Decolorization of a mixture of textile dyes using Bjerkandera sp. BOL-13. / Nordström, F; Terrazas, Enrique; Welander, Ulrika.

I: Environmental Technology, Vol. 29, Nr. 8, 2008, s. 921-929.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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Nordström, F ; Terrazas, Enrique ; Welander, Ulrika. / Decolorization of a mixture of textile dyes using Bjerkandera sp. BOL-13. I: Environmental Technology. 2008 ; Vol. 29, Nr. 8. s. 921-929.

RIS

TY - JOUR

T1 - Decolorization of a mixture of textile dyes using Bjerkandera sp. BOL-13.

AU - Nordström, F

AU - Terrazas, Enrique

AU - Welander, Ulrika

PY - 2008

Y1 - 2008

N2 - The white-rot fungus Bjerkandera sp. BOL-13 was evaluated regarding decolorization of four textile dyes Reactive blue 21, Reactive black 5, Reactive orange 13 and Reactive yellow 206. Experiments were performed in batch and continuous modes. The total dye concentration in all experiments was 100 mg l(-1). The results of the batch experiments showed that the fungus decolorized all dyes but at different rates. There was, however, an increase in the ultraviolet (UV) absorbance when a medium with a low concentration of nitrogen was used. No increase in UV range was observed when the nitrogen concentration was increased. A continuous experiment was performed to study the decolorization of a mixture of three of the dyes Reactive blue 21, Reactive black 5 and Reactive orange 13. Scanning of inlet and outlet samples showed that the absorbance at the peaks in the visible range decreased by 60-66%. The UV absorbance of the outlet increased during the first days of operation after which it decreased again to reach the same level as the inlet. The hydraulic retention time in the reactor was 3 days. The medium containing the higher nitrogen concentration was used in the continuous experiment.

AB - The white-rot fungus Bjerkandera sp. BOL-13 was evaluated regarding decolorization of four textile dyes Reactive blue 21, Reactive black 5, Reactive orange 13 and Reactive yellow 206. Experiments were performed in batch and continuous modes. The total dye concentration in all experiments was 100 mg l(-1). The results of the batch experiments showed that the fungus decolorized all dyes but at different rates. There was, however, an increase in the ultraviolet (UV) absorbance when a medium with a low concentration of nitrogen was used. No increase in UV range was observed when the nitrogen concentration was increased. A continuous experiment was performed to study the decolorization of a mixture of three of the dyes Reactive blue 21, Reactive black 5 and Reactive orange 13. Scanning of inlet and outlet samples showed that the absorbance at the peaks in the visible range decreased by 60-66%. The UV absorbance of the outlet increased during the first days of operation after which it decreased again to reach the same level as the inlet. The hydraulic retention time in the reactor was 3 days. The medium containing the higher nitrogen concentration was used in the continuous experiment.

KW - Biodegradation

KW - biofilm

KW - enzyme activity

KW - white-rot fungus

KW - reactive dyes

U2 - 10.1080/09593330802131628

DO - 10.1080/09593330802131628

M3 - Article

VL - 29

SP - 921

EP - 929

JO - Environmental Technology (United Kingdom)

JF - Environmental Technology (United Kingdom)

SN - 1479-487X

IS - 8

ER -