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Autotrophic nitrogen removal after ureolytic phosphate precipitation to remove both endogenous and exogenous nitrogen

(2013) WATER SCIENCE AND TECHNOLOGY. 67(7). p.1425-1433
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Abstract
Anaerobic digestion yields effluents rich in ammonium and phosphate and poor in biodegradable organic carbon, thereby making them less suitable for conventional biological nitrogen and phosphorus removal. In addition, the demand for fertilizers is increasing, energy prices are rising and global phosphate reserves are declining. This requires both changes in wastewater treatment technologies and implementation of new processes. In this contribution a description is given of the combination of a ureolytic phosphate precipitation (UPP) and an autotrophic nitrogen removal (ANR) process on the anaerobic effluent of a potato processing company. The results obtained show that it is possible to recover phosphate as struvite and to remove the nitrogen with the ANR process. The ANR process was performed in either one or two reactors (partial nitritation + Anammox). The one-reactor configuration operated stably when the dissolved oxygen was kept between 0.1 and 0.35 mg L-1. The best results for the two-reactor system were obtained when part of the effluent of the UPP was fully nitrified in a nitritation reactor and mixed in a 3: 5 volumetric ratio with untreated ammonium-containing effluent. A phosphate and nitrogen removal efficiency of respectively 83 +/- 1% and of 86 +/- 7% was observed during this experiment.
Keywords
REACTOR, BACTERIA, WASTE, NITRIFICATION, autotrophic nitrogen removal, nutrient recovery, struvite, ANAEROBIC AMMONIUM OXIDATION

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Chicago
Desmidt, Evelyn, A Monballiu, Haydée De Clippeleir, Willy Verstraete, and BD Meesschaert. 2013. “Autotrophic Nitrogen Removal After Ureolytic Phosphate Precipitation to Remove Both Endogenous and Exogenous Nitrogen.” Water Science and Technology 67 (7): 1425–1433.
APA
Desmidt, E., Monballiu, A., De Clippeleir, H., Verstraete, W., & Meesschaert, B. (2013). Autotrophic nitrogen removal after ureolytic phosphate precipitation to remove both endogenous and exogenous nitrogen. WATER SCIENCE AND TECHNOLOGY, 67(7), 1425–1433.
Vancouver
1.
Desmidt E, Monballiu A, De Clippeleir H, Verstraete W, Meesschaert B. Autotrophic nitrogen removal after ureolytic phosphate precipitation to remove both endogenous and exogenous nitrogen. WATER SCIENCE AND TECHNOLOGY. 2013;67(7):1425–33.
MLA
Desmidt, Evelyn, A Monballiu, Haydée De Clippeleir, et al. “Autotrophic Nitrogen Removal After Ureolytic Phosphate Precipitation to Remove Both Endogenous and Exogenous Nitrogen.” WATER SCIENCE AND TECHNOLOGY 67.7 (2013): 1425–1433. Print.
@article{3228064,
  abstract     = {Anaerobic digestion yields effluents rich in ammonium and phosphate and poor in biodegradable organic carbon, thereby making them less suitable for conventional biological nitrogen and phosphorus removal. In addition, the demand for fertilizers is increasing, energy prices are rising and global phosphate reserves are declining. This requires both changes in wastewater treatment technologies and implementation of new processes. In this contribution a description is given of the combination of a ureolytic phosphate precipitation (UPP) and an autotrophic nitrogen removal (ANR) process on the anaerobic effluent of a potato processing company. The results obtained show that it is possible to recover phosphate as struvite and to remove the nitrogen with the ANR process. The ANR process was performed in either one or two reactors (partial nitritation + Anammox). The one-reactor configuration operated stably when the dissolved oxygen was kept between 0.1 and 0.35 mg L-1. The best results for the two-reactor system were obtained when part of the effluent of the UPP was fully nitrified in a nitritation reactor and mixed in a 3: 5 volumetric ratio with untreated ammonium-containing effluent. A phosphate and nitrogen removal efficiency of respectively 83 +/- 1\% and of 86 +/- 7\% was observed during this experiment.},
  author       = {Desmidt, Evelyn and Monballiu, A and De Clippeleir, Hayd{\'e}e and Verstraete, Willy and Meesschaert, BD},
  issn         = {0273-1223},
  journal      = {WATER SCIENCE AND TECHNOLOGY},
  keyword      = {REACTOR,BACTERIA,WASTE,NITRIFICATION,autotrophic nitrogen removal,nutrient recovery,struvite,ANAEROBIC AMMONIUM OXIDATION},
  language     = {eng},
  number       = {7},
  pages        = {1425--1433},
  title        = {Autotrophic nitrogen removal after ureolytic phosphate precipitation to remove both endogenous and exogenous nitrogen},
  url          = {http://dx.doi.org/10.2166/wst.2013.666},
  volume       = {67},
  year         = {2013},
}

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