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'One reactor' autotrophic nitrogen removal after ureolytic phosphate precipitation to remove both endogenous and exogenous nitrogen

Evelyn Desmidt UGent, Annick Monballiu, Willy Verstraete UGent and Boudewijn Meesschaert (2011) IWA BeNeLux Regional Young Water Professionals Conference, 2nd, Papers.
abstract
Nowadays, anaerobic digestion plants are being developed that minimize energy consumption, CO2 emission and sludge production. However, these systems typically yield effluents rich in ammonium and phosphate and poor in biodegradable organic carbon, thereby making them less suitable for conventional biological N- and P- removal. Global phosphate reserves are declining and occur exclusively as phosphate ore. Through an increasing reliance of many industries on phosphate, there is a growing necessity for sustainable phosphate management. Phosphate recovery as struvite or magnesium ammonium phosphate (MAP) is becoming an important issue because it permits phosphate recycling in the fertilizer industry since struvite is known as a slow release fertilizer. Ureolytic phosphate precipitation (UPP) is a new method for phosphate removal which however introduces extra ammonium in the system. The Autotrophic Nitrogen Removal (ANR) process, a new and alternative method for nitrogen removal, consumes 63% less oxygen and 100% less biodegradable organic carbon when compared to the conventional nitrification and denitrification process and therefore has a lower operating cost. The combination of anaerobic digestion, ureolytic phosphate recovery by precipitation as struvite and nitrogen removal with the ANR process is proposed as a more sustainable and cheaper method than conventional wastewater treatment processes in which phosphate is not recuperated. In this contribution we investigate the removal of both the endogenous ammonium in the effluent of an USAB of a potato processing company and the ammonium derived from the ureolytic phosphate precipitation. The Autotrophic Nitrogen Removal process was tested in a one reactor system also known as the OLAND (Oxygen Limited Autotrophic Nitrification Denitrification) process.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
Autotrophic nitrogen removal, nutrient recovery, struvite.
in
IWA BeNeLux Regional Young Water Professionals Conference, 2nd, Papers
pages
2 pages
publisher
International Water Association (IWA)
conference name
2nd IWA BeNeLux Regional Young Water Professionals Conference
conference location
Leuven, Belgium
conference start
2011-09-20
conference end
2011-09-22
project
Biotechnology for a sustainable economy (Bio-Economy)
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1944924
handle
http://hdl.handle.net/1854/LU-1944924
date created
2011-11-21 12:34:56
date last changed
2013-02-27 11:59:14
@inproceedings{1944924,
  abstract     = {Nowadays, anaerobic digestion plants are being developed that minimize energy consumption, CO2 emission and sludge production. However, these systems typically yield effluents rich in ammonium and phosphate and poor in biodegradable organic carbon, thereby making them less suitable for conventional biological N- and P- removal. 
Global phosphate reserves are declining and occur exclusively as phosphate ore. Through an increasing reliance of many industries on phosphate, there is a growing necessity for sustainable phosphate management. Phosphate recovery as struvite or magnesium ammonium phosphate (MAP) is becoming an important issue because it permits phosphate recycling in the fertilizer industry since struvite is known as a slow release fertilizer. 
Ureolytic phosphate precipitation (UPP) is a new method for phosphate removal which however introduces extra ammonium in the system. The Autotrophic Nitrogen Removal (ANR) process, a new and alternative method for nitrogen removal, consumes 63\% less oxygen and 100\% less biodegradable organic carbon when compared to the conventional nitrification and denitrification process and therefore has a lower operating cost.
The combination of anaerobic digestion, ureolytic phosphate recovery by precipitation as struvite and nitrogen removal with the ANR process is proposed as a more sustainable and cheaper method than conventional wastewater treatment processes in which phosphate is not recuperated. 
In this contribution we investigate the removal of both the endogenous ammonium in the effluent of an USAB of a potato processing company and the ammonium derived from the ureolytic phosphate precipitation. The Autotrophic Nitrogen Removal process was tested in a one reactor system also known as the OLAND (Oxygen Limited Autotrophic Nitrification Denitrification) process.},
  author       = {Desmidt, Evelyn and Monballiu, Annick  and Verstraete, Willy and Meesschaert, Boudewijn},
  booktitle    = {IWA BeNeLux Regional Young Water Professionals Conference, 2nd, Papers},
  keyword      = {Autotrophic nitrogen removal,nutrient recovery,struvite.},
  language     = {eng},
  location     = {Leuven, Belgium},
  pages        = {2},
  publisher    = {International Water Association (IWA)},
  title        = {'One reactor' autotrophic nitrogen removal after ureolytic phosphate precipitation to remove both endogenous and exogenous nitrogen},
  year         = {2011},
}

Chicago
Desmidt, Evelyn, Annick Monballiu, Willy Verstraete, and Boudewijn Meesschaert. 2011. “‘One Reactor’ Autotrophic Nitrogen Removal After Ureolytic Phosphate Precipitation to Remove Both Endogenous and Exogenous Nitrogen.” In IWA BeNeLux Regional Young Water Professionals Conference, 2nd, Papers. International Water Association (IWA).
APA
Desmidt, E., Monballiu, A., Verstraete, W., & Meesschaert, B. (2011). “One reactor” autotrophic nitrogen removal after ureolytic phosphate precipitation to remove both endogenous and exogenous nitrogen. IWA BeNeLux Regional Young Water Professionals Conference, 2nd, Papers. Presented at the 2nd IWA BeNeLux Regional Young Water Professionals Conference, International Water Association (IWA).
Vancouver
1.
Desmidt E, Monballiu A, Verstraete W, Meesschaert B. “One reactor” autotrophic nitrogen removal after ureolytic phosphate precipitation to remove both endogenous and exogenous nitrogen. IWA BeNeLux Regional Young Water Professionals Conference, 2nd, Papers. International Water Association (IWA); 2011.
MLA
Desmidt, Evelyn, Annick Monballiu, Willy Verstraete, et al. “‘One Reactor’ Autotrophic Nitrogen Removal After Ureolytic Phosphate Precipitation to Remove Both Endogenous and Exogenous Nitrogen.” IWA BeNeLux Regional Young Water Professionals Conference, 2nd, Papers. International Water Association (IWA), 2011. Print.