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Immobilisation of TiO(2) for combined photocatalytic-biological azo dye degradation.

Jonstrup, Maria LU ; Wärjerstam, M; Murto, Marika LU and Mattiasson, Bo LU (2010) In Water Science and Technology 62(3). p.525-531
Abstract
The biodegradability of the azo dye Remazol Red RR (100 mg/l) was evaluated using unadapted activated sludge and the experiment confirmed the recalcitrance of the dye. Using a combination of photocatalysis and an aerobic biological step, the biodegradability was improved significantly and complete removal of both colour and COD were achieved. Furthermore, TiO(2) was successfully immobilised on borosilicate glass slides by calcination, which facilitates reuse of the catalyst. The catalytic activity of the immobilised TiO(2) was close to that of suspended TiO(2). A reduced activity was however observed when the TiO(2) slides were used repeatedly. When comparing NaOH, calcination and UV irradiation for regeneration of the TiO(2) slides,... (More)
The biodegradability of the azo dye Remazol Red RR (100 mg/l) was evaluated using unadapted activated sludge and the experiment confirmed the recalcitrance of the dye. Using a combination of photocatalysis and an aerobic biological step, the biodegradability was improved significantly and complete removal of both colour and COD were achieved. Furthermore, TiO(2) was successfully immobilised on borosilicate glass slides by calcination, which facilitates reuse of the catalyst. The catalytic activity of the immobilised TiO(2) was close to that of suspended TiO(2). A reduced activity was however observed when the TiO(2) slides were used repeatedly. When comparing NaOH, calcination and UV irradiation for regeneration of the TiO(2) slides, immersion in NaOH was shown to be the most efficient method. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Water Science and Technology
volume
62
issue
3
pages
525 - 531
publisher
IWA Publishing
external identifiers
  • wos:000281203000007
  • pmid:20705999
  • scopus:78049354529
ISSN
0273-1223
DOI
10.2166/wst.2010.331
language
English
LU publication?
yes
id
e3c52399-c9f1-486c-b820-aba5d36f6829 (old id 1665277)
date added to LUP
2010-09-09 13:58:04
date last changed
2018-05-29 11:41:32
@article{e3c52399-c9f1-486c-b820-aba5d36f6829,
  abstract     = {The biodegradability of the azo dye Remazol Red RR (100 mg/l) was evaluated using unadapted activated sludge and the experiment confirmed the recalcitrance of the dye. Using a combination of photocatalysis and an aerobic biological step, the biodegradability was improved significantly and complete removal of both colour and COD were achieved. Furthermore, TiO(2) was successfully immobilised on borosilicate glass slides by calcination, which facilitates reuse of the catalyst. The catalytic activity of the immobilised TiO(2) was close to that of suspended TiO(2). A reduced activity was however observed when the TiO(2) slides were used repeatedly. When comparing NaOH, calcination and UV irradiation for regeneration of the TiO(2) slides, immersion in NaOH was shown to be the most efficient method.},
  author       = {Jonstrup, Maria and Wärjerstam, M and Murto, Marika and Mattiasson, Bo},
  issn         = {0273-1223},
  language     = {eng},
  number       = {3},
  pages        = {525--531},
  publisher    = {IWA Publishing},
  series       = {Water Science and Technology},
  title        = {Immobilisation of TiO(2) for combined photocatalytic-biological azo dye degradation.},
  url          = {http://dx.doi.org/10.2166/wst.2010.331},
  volume       = {62},
  year         = {2010},
}