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Biological detoxification of tar-water

la Cour Jansen, Jes LU ; Jönsson, Karin LU and Hagman, Marinette LU (2002) In Water Science and Technology 46(4-5). p.59-65
Abstract
Gasification is an important option for the swift implementation of biomass combined heat and power. processes in the Danish energy supply system. Tar-water produced by the gas-cleaning system of gasifiers may contain substances toxic to nitrifying bacteria. As the gasification plants are small and often located in the catchment area of small wastewater treatment plants, discharge of the tar-water may be critical for wastewater treatment plants operated with nitrogen removal. Tar-water from a full-scale updraft gasifier has been thoroughly examined with respect to inhibition of nitrification and the toxicity for nitrifying bacteria has been evaluated for the dominating:constituents in the tar-water. Simple organic substances make up the... (More)
Gasification is an important option for the swift implementation of biomass combined heat and power. processes in the Danish energy supply system. Tar-water produced by the gas-cleaning system of gasifiers may contain substances toxic to nitrifying bacteria. As the gasification plants are small and often located in the catchment area of small wastewater treatment plants, discharge of the tar-water may be critical for wastewater treatment plants operated with nitrogen removal. Tar-water from a full-scale updraft gasifier has been thoroughly examined with respect to inhibition of nitrification and the toxicity for nitrifying bacteria has been evaluated for the dominating:constituents in the tar-water. Simple organic substances make up the dominating part of the organic matter but phenol and phenolic compounds are also present in significant concentrations. The identified substances are biologically degradable and it has been demonstrated that most of the organic matter together with the toxicity can be eliminated in an aerobic activated sludge process. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
SBR, OUR, nitrification inhibition, aerobic treatment, biological detoxification, tar-water
in
Water Science and Technology
volume
46
issue
4-5
pages
59 - 65
publisher
IWA Publishing
external identifiers
  • pmid:12361049
  • wos:000178434900009
  • scopus:0036380325
ISSN
0273-1223
language
English
LU publication?
yes
id
30a1af56-4d30-4dee-ba65-c92b0cf988c4 (old id 325825)
date added to LUP
2007-10-24 13:41:49
date last changed
2017-03-26 04:16:57
@article{30a1af56-4d30-4dee-ba65-c92b0cf988c4,
  abstract     = {Gasification is an important option for the swift implementation of biomass combined heat and power. processes in the Danish energy supply system. Tar-water produced by the gas-cleaning system of gasifiers may contain substances toxic to nitrifying bacteria. As the gasification plants are small and often located in the catchment area of small wastewater treatment plants, discharge of the tar-water may be critical for wastewater treatment plants operated with nitrogen removal. Tar-water from a full-scale updraft gasifier has been thoroughly examined with respect to inhibition of nitrification and the toxicity for nitrifying bacteria has been evaluated for the dominating:constituents in the tar-water. Simple organic substances make up the dominating part of the organic matter but phenol and phenolic compounds are also present in significant concentrations. The identified substances are biologically degradable and it has been demonstrated that most of the organic matter together with the toxicity can be eliminated in an aerobic activated sludge process.},
  author       = {la Cour Jansen, Jes and Jönsson, Karin and Hagman, Marinette},
  issn         = {0273-1223},
  keyword      = {SBR,OUR,nitrification inhibition,aerobic treatment,biological detoxification,tar-water},
  language     = {eng},
  number       = {4-5},
  pages        = {59--65},
  publisher    = {IWA Publishing},
  series       = {Water Science and Technology},
  title        = {Biological detoxification of tar-water},
  volume       = {46},
  year         = {2002},
}