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Economic evaluation of the precipitation of phosphate as struvite at pilotscale

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Abstract
A novel approach using ureolytic induced MAP formation, for the recovery of phosphate, has been economically evaluated. The ureolytic MAP crystallizationon has been tested on anaerobic effluent of a potato processing company in a pilot plant, with MgCl2.6H2O as magnesium source. The pilot plant showed a high phosphate removal efficiency of 82 ± 9 %, resulting in a final effluent concentration of 13 ± 7 mg/L PO4-P. XRD analyses confirmed the presence of struvite in the precipitate. During operation pH and the molar magnesium : ammonium : phosphate ratio are the most important operational parameters influencing MAP crystallization. Results show that for high phosphate concentrations in wastewater (e.g. 100 mg/L PO4-P) the ureolytic phosphate precipitation is a cost effective method (6.1 € kg-1 Premoved). Moreover, the technique is competitive with the chemical phosphate precipitation of struvite (6.2 € kg-1 Premoved).
Keywords
ureolytic activity, Phosphate removal, nutrient recovery

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MLA
Desmidt, Evelyn, et al. “Economic Evaluation of the Precipitation of Phosphate as Struvite at Pilotscale.” IWA BeNeLux Regional Young Water Professionals Conference, 1st, Papers, International Water Association (IWA), 2009.
APA
Desmidt, E., Ghyselbrecht, K., Monballiu, A., Maes, B., Verstraete, W., & Meesschaert, B. (2009). Economic evaluation of the precipitation of phosphate as struvite at pilotscale. IWA BeNeLux Regional Young Water Professionals Conference, 1st, Papers. Presented at the 1st IWA BeNeLux Regional Young Water Professionals Conference (IWA YWP Benelux 2009), Eindhoven, The Netherlands.
Chicago author-date
Desmidt, Evelyn, Karel Ghyselbrecht, Annick Monballiu, Betty Maes, Willy Verstraete, and Boudewijn Meesschaert. 2009. “Economic Evaluation of the Precipitation of Phosphate as Struvite at Pilotscale.” In IWA BeNeLux Regional Young Water Professionals Conference, 1st, Papers. International Water Association (IWA).
Chicago author-date (all authors)
Desmidt, Evelyn, Karel Ghyselbrecht, Annick Monballiu, Betty Maes, Willy Verstraete, and Boudewijn Meesschaert. 2009. “Economic Evaluation of the Precipitation of Phosphate as Struvite at Pilotscale.” In IWA BeNeLux Regional Young Water Professionals Conference, 1st, Papers. International Water Association (IWA).
Vancouver
1.
Desmidt E, Ghyselbrecht K, Monballiu A, Maes B, Verstraete W, Meesschaert B. Economic evaluation of the precipitation of phosphate as struvite at pilotscale. In: IWA BeNeLux Regional Young Water Professionals Conference, 1st, Papers. International Water Association (IWA); 2009.
IEEE
[1]
E. Desmidt, K. Ghyselbrecht, A. Monballiu, B. Maes, W. Verstraete, and B. Meesschaert, “Economic evaluation of the precipitation of phosphate as struvite at pilotscale,” in IWA BeNeLux Regional Young Water Professionals Conference, 1st, Papers, Eindhoven, The Netherlands, 2009.
@inproceedings{971135,
  abstract     = {{A novel approach using ureolytic induced MAP formation, for the recovery of phosphate, has been economically evaluated. The ureolytic MAP crystallizationon has been tested on anaerobic effluent of a potato processing company in a pilot plant, with MgCl2.6H2O as magnesium source. The pilot plant showed a high phosphate removal efficiency of 82 ± 9 %, resulting in a final effluent concentration of 13 ± 7 mg/L PO4-P. XRD analyses confirmed the presence of struvite in the precipitate. During operation pH and the molar magnesium : ammonium : phosphate ratio are the most important operational parameters influencing MAP crystallization. Results show that for high phosphate concentrations in wastewater (e.g. 100 mg/L PO4-P) the ureolytic phosphate precipitation is a cost effective method (6.1 € kg-1 Premoved). Moreover, the technique is competitive with the chemical phosphate precipitation of struvite (6.2 € kg-1 Premoved).}},
  author       = {{Desmidt, Evelyn and Ghyselbrecht, Karel and Monballiu, Annick and Maes, Betty and Verstraete, Willy and Meesschaert, Boudewijn}},
  booktitle    = {{IWA BeNeLux Regional Young Water Professionals Conference, 1st, Papers}},
  keywords     = {{ureolytic activity,Phosphate removal,nutrient recovery}},
  language     = {{eng}},
  location     = {{Eindhoven, The Netherlands}},
  pages        = {{6}},
  publisher    = {{International Water Association (IWA)}},
  title        = {{Economic evaluation of the precipitation of phosphate as struvite at pilotscale}},
  year         = {{2009}},
}