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Biotechnology for a sustainable economy (Bio-Economy)
Abstract
Phosphorus and nitrogen are important elements, making a major contribution to agricultural and industrial development, but their release to natural water bodies are the main causes of eutrophication. 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 the combination of an ureolytic MAP (magnesium ammonium phosphate) precipitation and autotrophic nitrogen removal is described on the anaerobic effluent of a potato processing company to obtain a more sustainable and cheaper method than conventional wastewater treatment processes. The results obtained during this experiment (6 weeks period) show that it is possible to recover phosphate as struvite and remove nitrogen with the autotrophic nitrogen process from wastewater after anaerobic digestion coming from a potato processing company. However further research is necessary to obtain stable results during several months, especially for the nitrite:ammonium ratio produced by the partial nitritation reactor.
Keywords
nutrient recovery, struvite., Autotrophic nitrogen removal

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Citation

Please use this url to cite or link to this publication:

Chicago
Desmidt, Evelyn, Annick Monballiu, Haydée De Clippeleir, Willy Verstraete, and Boudewijn Meesschaert. 2011. “Nutrient Removal from UASB Effluent in Agro-industries.” In Waste Management Problems in Agro Industries, 8th IWA International Conference, Proceedings. International Water Association (IWA).
APA
Desmidt, E., Monballiu, A., De Clippeleir, H., Verstraete, W., & Meesschaert, B. (2011). Nutrient removal from UASB effluent in agro-industries. Waste Management Problems in Agro Industries, 8th IWA International conference, Proceedings. Presented at the 8th IWA International conference on Waste Management Problems in Agro Industries, International Water Association (IWA).
Vancouver
1.
Desmidt E, Monballiu A, De Clippeleir H, Verstraete W, Meesschaert B. Nutrient removal from UASB effluent in agro-industries. Waste Management Problems in Agro Industries, 8th IWA International conference, Proceedings. International Water Association (IWA); 2011.
MLA
Desmidt, Evelyn, Annick Monballiu, Haydée De Clippeleir, et al. “Nutrient Removal from UASB Effluent in Agro-industries.” Waste Management Problems in Agro Industries, 8th IWA International Conference, Proceedings. International Water Association (IWA), 2011. Print.
@inproceedings{1944780,
  abstract     = {Phosphorus and nitrogen are important elements, making a major contribution to agricultural and industrial development, but their release to natural water bodies are the main causes of eutrophication. 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 the combination of an ureolytic MAP (magnesium ammonium phosphate) precipitation and autotrophic nitrogen removal is described on the anaerobic effluent of a potato processing company to obtain a more sustainable and cheaper method than conventional wastewater treatment processes. The results obtained during this experiment (6 weeks period) show that it is possible to recover phosphate as struvite and remove nitrogen with the autotrophic nitrogen process from wastewater after anaerobic digestion coming from a potato processing company. However further research is necessary to obtain stable results during several months, especially for the nitrite:ammonium ratio produced by the partial nitritation reactor.},
  author       = {Desmidt, Evelyn and Monballiu, Annick  and De Clippeleir, Hayd{\'e}e and Verstraete, Willy and Meesschaert, Boudewijn },
  booktitle    = {Waste Management Problems in Agro Industries, 8th IWA International conference, Proceedings},
  keyword      = {nutrient recovery,struvite.,Autotrophic nitrogen removal},
  language     = {eng},
  location     = {Turkey, Cesme},
  pages        = {7},
  publisher    = {International Water Association (IWA)},
  title        = {Nutrient removal from UASB effluent in agro-industries},
  year         = {2011},
}