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Oxygen uptake rate measurements for evaluation of ozonation of municipal wastewater

Hagman, Marinette LU ; Tykesson, Eva LU ; Hjorth, B and la Cour Jansen, Jes LU (2007) In Environmental Technology 28(2). p.177-183
Abstract
Ozonation has become more frequently used as oxidant to reduce chemical oxygen demand (COD) and toxic substances in wastewater originating from different industrial processes. An ozonation pilot plant followed by two parallel biological filters are used to investigate the possibility to reduce the high concentration of refractory COD in the effluent from a municipal wastewater treatment plant, partly loaded with biologically treated wastewater from a large pharmaceutical industry. COD measurements are used to evaluate the overall reduction of organic matter, oxygen uptake rate (OUR) and volatile fatty acids measurements are used for evaluation of the biodegradability of the remaining COD after ozonation. The impact of the ozone dose on the... (More)
Ozonation has become more frequently used as oxidant to reduce chemical oxygen demand (COD) and toxic substances in wastewater originating from different industrial processes. An ozonation pilot plant followed by two parallel biological filters are used to investigate the possibility to reduce the high concentration of refractory COD in the effluent from a municipal wastewater treatment plant, partly loaded with biologically treated wastewater from a large pharmaceutical industry. COD measurements are used to evaluate the overall reduction of organic matter, oxygen uptake rate (OUR) and volatile fatty acids measurements are used for evaluation of the biodegradability of the remaining COD after ozonation. The impact of the ozone dose on the overall COD degradation and degradability of the remaining COD has been estimated. Biochemical oxygen demand (BOD) measurements confirm that parts of the COD are converted into biodegradable organic matter by ozonation. Biofilters following the ozonation plant secure that any degradable organic matter produced by ozonation is removed, which is confirmed from OUR-measurements. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
oxygen uptake rate, activated sludge, biodegradable, ozonation, refractory COD
in
Environmental Technology
volume
28
issue
2
pages
177 - 183
publisher
Selper Ltd
external identifiers
  • wos:000245143400008
  • scopus:33947401048
ISSN
1479-487X
language
English
LU publication?
yes
id
c9918e42-b220-4e97-93d1-5bf117c15e58 (old id 669847)
alternative location
http://www.ingentaconnect.com/
date added to LUP
2007-12-12 10:59:48
date last changed
2017-09-17 04:58:22
@article{c9918e42-b220-4e97-93d1-5bf117c15e58,
  abstract     = {Ozonation has become more frequently used as oxidant to reduce chemical oxygen demand (COD) and toxic substances in wastewater originating from different industrial processes. An ozonation pilot plant followed by two parallel biological filters are used to investigate the possibility to reduce the high concentration of refractory COD in the effluent from a municipal wastewater treatment plant, partly loaded with biologically treated wastewater from a large pharmaceutical industry. COD measurements are used to evaluate the overall reduction of organic matter, oxygen uptake rate (OUR) and volatile fatty acids measurements are used for evaluation of the biodegradability of the remaining COD after ozonation. The impact of the ozone dose on the overall COD degradation and degradability of the remaining COD has been estimated. Biochemical oxygen demand (BOD) measurements confirm that parts of the COD are converted into biodegradable organic matter by ozonation. Biofilters following the ozonation plant secure that any degradable organic matter produced by ozonation is removed, which is confirmed from OUR-measurements.},
  author       = {Hagman, Marinette and Tykesson, Eva and Hjorth, B and la Cour Jansen, Jes},
  issn         = {1479-487X},
  keyword      = {oxygen uptake rate,activated sludge,biodegradable,ozonation,refractory COD},
  language     = {eng},
  number       = {2},
  pages        = {177--183},
  publisher    = {Selper Ltd},
  series       = {Environmental Technology},
  title        = {Oxygen uptake rate measurements for evaluation of ozonation of municipal wastewater},
  volume       = {28},
  year         = {2007},
}