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Ozonation and Thermal Pre-Treatment of Municipal Sewage Sludge-Implications for Toxicity and Methane Potential

Davidsson, Åsa LU orcid ; Eriksson, E. and Fick, J. (2013) In Journal of Residuals Science and Technology 10(2). p.85-91
Abstract
The aim of this study was to determine effects on methane potential and overall sludge quality from two different sludge pre-treatment technologies (ozonation high/low dosage and thermal treatment 55/70 degrees C). In general both treatments produced increased methane potential. Thermal treatment resulted in higher chemical oxygen demand (COD)-solubilisation, while the highest volatile fatty acids (VFA) increase was obtained with ozonation. Sludges had inhibiting effects in a barley seed germination assay and a yeast oestrogen screen both before and after pre-treatment, but inhibition was reduced by ozone treatment and digestion. No statistical significant reduction in concentrations of included pharmaceuticals could be observed.
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Residuals Science and Technology
volume
10
issue
2
pages
85 - 91
publisher
DEStech Publications
external identifiers
  • wos:000321541500004
ISSN
1544-8053
language
English
LU publication?
yes
id
2aea3e78-bfa1-4287-a749-6206d1175a56 (old id 3979315)
date added to LUP
2016-04-01 14:46:23
date last changed
2018-11-21 20:30:00
@article{2aea3e78-bfa1-4287-a749-6206d1175a56,
  abstract     = {{The aim of this study was to determine effects on methane potential and overall sludge quality from two different sludge pre-treatment technologies (ozonation high/low dosage and thermal treatment 55/70 degrees C). In general both treatments produced increased methane potential. Thermal treatment resulted in higher chemical oxygen demand (COD)-solubilisation, while the highest volatile fatty acids (VFA) increase was obtained with ozonation. Sludges had inhibiting effects in a barley seed germination assay and a yeast oestrogen screen both before and after pre-treatment, but inhibition was reduced by ozone treatment and digestion. No statistical significant reduction in concentrations of included pharmaceuticals could be observed.}},
  author       = {{Davidsson, Åsa and Eriksson, E. and Fick, J.}},
  issn         = {{1544-8053}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{85--91}},
  publisher    = {{DEStech Publications}},
  series       = {{Journal of Residuals Science and Technology}},
  title        = {{Ozonation and Thermal Pre-Treatment of Municipal Sewage Sludge-Implications for Toxicity and Methane Potential}},
  volume       = {{10}},
  year         = {{2013}},
}