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Biotechnological exploration of nitrate-accumulating microalgae for nutrient recovery from saline wastewaters

Joeri Coppens, Bjorge Decostere, Stijn Van Hulle UGent, Ingmar Nopens UGent, Siegfried Vlaeminck UGent, Leen De Gelder UGent and Nico Boon UGent (2014) Global Challenges : Sustainable Wastewater Treatment and Resource Recovery, IWA Specialist conference, Papers.
abstract
Within sustainable resource management, the recovery of nitrogen and phosphorus nutrients from waste streams is becoming increasingly important. Although the use of microalgae has been described extensively in environmental biotechnology, the potential of nitrate-accumulating microalgae for nutrient recovery has not been investigated yet. The ability of these marine microorganisms to concentrate environmental nitrate within their biomass is remarkable. The aim of this study was to investigate the application potential of nitrate-accumulating diatoms for nutrient recovery from marine wastewaters. The intracellular nitrate storage capacity was quantified for six marine diatom strains in synthetic wastewater. Amphora coffeaeformis and Phaeodactylum tricornutum stored the highest amount of nitrate with respectively 3.15 and 2.10 g N L−1 of cell volume, which accounted for 17.3 and 4.6 %, respectively, of the total nitrogen content. The growth and nitrate and phosphate uptake of both diatoms were further analyzed and based on these features P. tricornutum showed the highest potential for nutrient recovery. A mathematicalmodel was developed which included intracellular nitrate storage and the kinetic parameters were derived for P. tricornutum. Furthermore, a simulation study was performed to compare the performance of a proposed microalgal nutrient recovery unit with a conventional denitrification system for marine wastewater treatment. Overall, this study demonstrates the potential application of P. tricornutum for saline wastewater treatment with concurrent nitrogen and phosphorus recycling.
Please use this url to cite or link to this publication:
author
organization
year
type
conference (other)
publication status
published
subject
keyword
Nutrient removal, Kinetics, Microalgae, Nitrogen recovery, Modeling, Wastewater
in
Global Challenges : Sustainable Wastewater Treatment and Resource Recovery, IWA Specialist conference, Papers
pages
4 pages
publisher
International Water Association (IWA)
conference name
IWA Specialist conference on Global Challenges : Sustainable Wastewater Treatment and Resource Recovery
conference location
Kathmandu, Nepal
conference start
2014-10-26
conference end
2014-10-30
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
6963690
handle
http://hdl.handle.net/1854/LU-6963690
date created
2015-10-19 20:06:13
date last changed
2017-03-30 14:48:45
@inproceedings{6963690,
  abstract     = {Within sustainable resource management, the recovery of nitrogen and phosphorus nutrients from waste streams is becoming increasingly important. Although the use of microalgae has been described extensively in environmental biotechnology, the potential of nitrate-accumulating microalgae for nutrient recovery has not been investigated yet. The ability of these marine microorganisms to concentrate environmental nitrate within their biomass is remarkable. The aim of this study was to investigate the application potential of nitrate-accumulating diatoms for nutrient recovery from marine wastewaters. The intracellular nitrate storage capacity was quantified for six marine diatom strains in synthetic wastewater. Amphora coffeaeformis and Phaeodactylum tricornutum stored the highest amount of nitrate with respectively 3.15 and 2.10 g N L\ensuremath{-}1 of cell volume, which accounted for 17.3 and 4.6 \%, respectively, of the total nitrogen content. The growth and nitrate and phosphate uptake of both diatoms were further analyzed and based on these features P. tricornutum showed the highest potential for nutrient recovery. A mathematicalmodel was developed which included intracellular nitrate storage and the kinetic parameters were derived for P. tricornutum. Furthermore, a simulation study was performed to compare the performance of a proposed microalgal nutrient recovery unit with a conventional denitrification system for marine wastewater treatment. Overall, this study demonstrates the potential application of P. tricornutum for saline wastewater treatment with concurrent nitrogen and phosphorus recycling.},
  author       = {Coppens, Joeri and Decostere, Bjorge and Van Hulle, Stijn and Nopens, Ingmar and Vlaeminck, Siegfried and De Gelder, Leen and Boon, Nico},
  booktitle    = {Global Challenges : Sustainable Wastewater Treatment and Resource Recovery, IWA Specialist conference, Papers},
  keyword      = {Nutrient removal,Kinetics,Microalgae,Nitrogen recovery,Modeling,Wastewater},
  language     = {eng},
  location     = {Kathmandu, Nepal},
  pages        = {4},
  publisher    = {International Water Association (IWA)},
  title        = {Biotechnological exploration of nitrate-accumulating microalgae for nutrient recovery from saline wastewaters},
  year         = {2014},
}

Chicago
Coppens, Joeri, Bjorge Decostere, Stijn Van Hulle, Ingmar Nopens, Siegfried Vlaeminck, Leen De Gelder, and Nico Boon. 2014. “Biotechnological Exploration of Nitrate-accumulating Microalgae for Nutrient Recovery from Saline Wastewaters.” In Global Challenges : Sustainable Wastewater Treatment and Resource Recovery, IWA Specialist Conference, Papers. International Water Association (IWA).
APA
Coppens, Joeri, Decostere, B., Van Hulle, S., Nopens, I., Vlaeminck, S., De Gelder, L., & Boon, N. (2014). Biotechnological exploration of nitrate-accumulating microalgae for nutrient recovery from saline wastewaters. Global Challenges : Sustainable Wastewater Treatment and Resource Recovery, IWA Specialist conference, Papers. Presented at the IWA Specialist conference on Global Challenges : Sustainable Wastewater Treatment and Resource Recovery, International Water Association (IWA).
Vancouver
1.
Coppens J, Decostere B, Van Hulle S, Nopens I, Vlaeminck S, De Gelder L, et al. Biotechnological exploration of nitrate-accumulating microalgae for nutrient recovery from saline wastewaters. Global Challenges : Sustainable Wastewater Treatment and Resource Recovery, IWA Specialist conference, Papers. International Water Association (IWA); 2014.
MLA
Coppens, Joeri, Bjorge Decostere, Stijn Van Hulle, et al. “Biotechnological Exploration of Nitrate-accumulating Microalgae for Nutrient Recovery from Saline Wastewaters.” Global Challenges : Sustainable Wastewater Treatment and Resource Recovery, IWA Specialist Conference, Papers. International Water Association (IWA), 2014. Print.