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A small scale hydroponics wastewater treatment system under Swedish conditions

Norstrom, A; Larsdotter, K; Gumaellius, L; la Cour Jansen, Jes LU and Dallhammar, G (2003) In Water Science and Technology 48(11-12). p.161-167
Abstract
A treatment plant using conventional biological treatment combined with hydroponics and microalgae is constructed in a greenhouse in the area of Stockholm, Sweden. The treatment plant is built for research purposes and presently treats 0.559 m(3) of domestic wastewater from the surrounding area per day. The system uses anoxic pre-denitrification followed by aerobic tanks for nitrification and plant growth. A microalgal step further reduces phosphorus, and a final sand filter polishes the water. During a three week period in July 2002 the treatment capacity of this system was evaluated with respect to removal of organic matter, phosphorus and nitrogen. 90% COD removal was obtained early in the system. Nitrification and denitrification was... (More)
A treatment plant using conventional biological treatment combined with hydroponics and microalgae is constructed in a greenhouse in the area of Stockholm, Sweden. The treatment plant is built for research purposes and presently treats 0.559 m(3) of domestic wastewater from the surrounding area per day. The system uses anoxic pre-denitrification followed by aerobic tanks for nitrification and plant growth. A microalgal step further reduces phosphorus, and a final sand filter polishes the water. During a three week period in July 2002 the treatment capacity of this system was evaluated with respect to removal of organic matter, phosphorus and nitrogen. 90% COD removal was obtained early in the system. Nitrification and denitrification was well established with total nitrogen reduction of 72%. Phosphorus was removed by 47% in the process. However, higher phosphorus removal values are expected as the microalgal step will be further developed. The results show that acceptable treatment can be achieved using this kind of system. Further optimisation of the system will lead to clean water as well as valuable plants to be harvested from the nutrient rich wastewater. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
small, greenhouse, domestic wastewater, nutrient recovery, hydroponics, scale treatment
in
Water Science and Technology
volume
48
issue
11-12
pages
161 - 167
publisher
IWA Publishing
external identifiers
  • wos:000188094900022
  • pmid:14753532
ISSN
0273-1223
language
English
LU publication?
yes
id
4908feda-dbe0-4b08-802d-c63b69ca90f5 (old id 289594)
date added to LUP
2007-08-03 14:16:33
date last changed
2016-04-16 03:20:36
@article{4908feda-dbe0-4b08-802d-c63b69ca90f5,
  abstract     = {A treatment plant using conventional biological treatment combined with hydroponics and microalgae is constructed in a greenhouse in the area of Stockholm, Sweden. The treatment plant is built for research purposes and presently treats 0.559 m(3) of domestic wastewater from the surrounding area per day. The system uses anoxic pre-denitrification followed by aerobic tanks for nitrification and plant growth. A microalgal step further reduces phosphorus, and a final sand filter polishes the water. During a three week period in July 2002 the treatment capacity of this system was evaluated with respect to removal of organic matter, phosphorus and nitrogen. 90% COD removal was obtained early in the system. Nitrification and denitrification was well established with total nitrogen reduction of 72%. Phosphorus was removed by 47% in the process. However, higher phosphorus removal values are expected as the microalgal step will be further developed. The results show that acceptable treatment can be achieved using this kind of system. Further optimisation of the system will lead to clean water as well as valuable plants to be harvested from the nutrient rich wastewater.},
  author       = {Norstrom, A and Larsdotter, K and Gumaellius, L and la Cour Jansen, Jes and Dallhammar, G},
  issn         = {0273-1223},
  keyword      = {small,greenhouse,domestic wastewater,nutrient recovery,hydroponics,scale treatment},
  language     = {eng},
  number       = {11-12},
  pages        = {161--167},
  publisher    = {IWA Publishing},
  series       = {Water Science and Technology},
  title        = {A small scale hydroponics wastewater treatment system under Swedish conditions},
  volume       = {48},
  year         = {2003},
}