Biodegradation of direct blue 15 by free and immobilized Trametes versicolor
Küçük Resim Yok
Tarih
2010
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Water Environment Federation
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
To investigate biodegradability by Trametes versicolor, five structurally different direct azo-dyes - Direct Black 38, Direct Blue 15 (DB 15), Direct Orange 26, Direct Green 6, and Direct Yellow 12 - were studied. The DB 15 was determined as the best biodegradable dye by this white-rot fungus. Laccase and manganese peroxidase activities were monitored with the biodegradation process; it was observed that laccase played an important role in the dye degradation, while manganese peroxidase activity could not be detected. Possible degradation products also were examined by gas chromatography-mass spectrometry, but no metabolite was detected after the degradation and/or decolorization process. To enhance performance of the fungi during the degradation, Trametes versicolor cells were immobilized in alginate beads. Then, DB 15 decolorization by immobilized Trametes versicolor was studied in a small-scale packed-bed reactor. The color removal efficiency in repeated batches was found to be 98 and 93% for 50 mg/L DB 15. © 2010 Publishing Technology.
Açıklama
Anahtar Kelimeler
Aerobic digestion, Biodegradation, Colorants, Immobilized cell, Trametes versicolor
Kaynak
Water Environment Research
WoS Q Değeri
Scopus Q Değeri
Q2
Cilt
82
Sayı
7
