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Recovering Nitrogen as a Solid without Chemical Dosing: Bio-Electroconcentration for Recovery of Nutrients from Urine

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Recovering Nitrogen as a Solid without Chemical Dosing : Bio-Electroconcentration for Recovery of Nutrients from Urine. / Ledezma, Pablo; Jermakka, Johannes; Keller, Jurg; Freguia, Stefano.

In: Environmental Science and Technology Letters, Vol. 4, No. 3, 14.03.2017, p. 119-124.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Ledezma, P, Jermakka, J, Keller, J & Freguia, S 2017, 'Recovering Nitrogen as a Solid without Chemical Dosing: Bio-Electroconcentration for Recovery of Nutrients from Urine', Environmental Science and Technology Letters, vol. 4, no. 3, pp. 119-124. https://doi.org/10.1021/acs.estlett.7b00024

APA

Ledezma, P., Jermakka, J., Keller, J., & Freguia, S. (2017). Recovering Nitrogen as a Solid without Chemical Dosing: Bio-Electroconcentration for Recovery of Nutrients from Urine. Environmental Science and Technology Letters, 4(3), 119-124. https://doi.org/10.1021/acs.estlett.7b00024

Vancouver

Ledezma P, Jermakka J, Keller J, Freguia S. Recovering Nitrogen as a Solid without Chemical Dosing: Bio-Electroconcentration for Recovery of Nutrients from Urine. Environmental Science and Technology Letters. 2017 Mar 14;4(3):119-124. https://doi.org/10.1021/acs.estlett.7b00024

Author

Ledezma, Pablo ; Jermakka, Johannes ; Keller, Jurg ; Freguia, Stefano. / Recovering Nitrogen as a Solid without Chemical Dosing : Bio-Electroconcentration for Recovery of Nutrients from Urine. In: Environmental Science and Technology Letters. 2017 ; Vol. 4, No. 3. pp. 119-124.

Bibtex - Download

@article{e6edc1c4ec8a43d1bfebbe9ec4e7d54c,
title = "Recovering Nitrogen as a Solid without Chemical Dosing: Bio-Electroconcentration for Recovery of Nutrients from Urine",
abstract = "This letter presents the proof of concept of a novel bio-electroconcentration system (BEC), a hybrid microbial electrolysis/electrodialysis cell specifically designed to recover nitrogen (as ammonia NH4-N), phosphorus (as phosphate PO4-P), and potassium (as K+) from urine. Using a synthetic urine medium, the BECs could reach high current densities of up to 37.6 A m-2 at Ewe values of 0.0 versus the standard hydrogen electrode (SHE) and 50 A m-2 at 0.2 V versus SHE, which in turn drove the removal and recovery of N, P, and K at rates of 7.18 kg of NH4-N m-3 day-1, 0.52 kg of PO4-P m-3 day-1, and 1.62 kg of K+ m-3 day-1 into a concentrate stream (containing 1.87 M NH4-N, 0.29 M PO4-P, and 0.18 M K+). Finally, this communication demonstrates the recovery of a nitrogen-rich solid from the synthetic urine (in the form of pure NH4HCO3 crystals with 17{\%} N content) without any chemical additions via the flash-cooling of the produced nutrient-rich concentrate to 4 °C. These two new products may help facilitate the reuse of urine nutrients in the fertilizer or protein production industries of the future.",
author = "Pablo Ledezma and Johannes Jermakka and Jurg Keller and Stefano Freguia",
year = "2017",
month = "3",
day = "14",
doi = "10.1021/acs.estlett.7b00024",
language = "English",
volume = "4",
pages = "119--124",
journal = "Environmental Science and Technology Letters",
issn = "2328-8930",
publisher = "American Chemical Society",
number = "3",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Recovering Nitrogen as a Solid without Chemical Dosing

T2 - Bio-Electroconcentration for Recovery of Nutrients from Urine

AU - Ledezma, Pablo

AU - Jermakka, Johannes

AU - Keller, Jurg

AU - Freguia, Stefano

PY - 2017/3/14

Y1 - 2017/3/14

N2 - This letter presents the proof of concept of a novel bio-electroconcentration system (BEC), a hybrid microbial electrolysis/electrodialysis cell specifically designed to recover nitrogen (as ammonia NH4-N), phosphorus (as phosphate PO4-P), and potassium (as K+) from urine. Using a synthetic urine medium, the BECs could reach high current densities of up to 37.6 A m-2 at Ewe values of 0.0 versus the standard hydrogen electrode (SHE) and 50 A m-2 at 0.2 V versus SHE, which in turn drove the removal and recovery of N, P, and K at rates of 7.18 kg of NH4-N m-3 day-1, 0.52 kg of PO4-P m-3 day-1, and 1.62 kg of K+ m-3 day-1 into a concentrate stream (containing 1.87 M NH4-N, 0.29 M PO4-P, and 0.18 M K+). Finally, this communication demonstrates the recovery of a nitrogen-rich solid from the synthetic urine (in the form of pure NH4HCO3 crystals with 17% N content) without any chemical additions via the flash-cooling of the produced nutrient-rich concentrate to 4 °C. These two new products may help facilitate the reuse of urine nutrients in the fertilizer or protein production industries of the future.

AB - This letter presents the proof of concept of a novel bio-electroconcentration system (BEC), a hybrid microbial electrolysis/electrodialysis cell specifically designed to recover nitrogen (as ammonia NH4-N), phosphorus (as phosphate PO4-P), and potassium (as K+) from urine. Using a synthetic urine medium, the BECs could reach high current densities of up to 37.6 A m-2 at Ewe values of 0.0 versus the standard hydrogen electrode (SHE) and 50 A m-2 at 0.2 V versus SHE, which in turn drove the removal and recovery of N, P, and K at rates of 7.18 kg of NH4-N m-3 day-1, 0.52 kg of PO4-P m-3 day-1, and 1.62 kg of K+ m-3 day-1 into a concentrate stream (containing 1.87 M NH4-N, 0.29 M PO4-P, and 0.18 M K+). Finally, this communication demonstrates the recovery of a nitrogen-rich solid from the synthetic urine (in the form of pure NH4HCO3 crystals with 17% N content) without any chemical additions via the flash-cooling of the produced nutrient-rich concentrate to 4 °C. These two new products may help facilitate the reuse of urine nutrients in the fertilizer or protein production industries of the future.

U2 - 10.1021/acs.estlett.7b00024

DO - 10.1021/acs.estlett.7b00024

M3 - Article

VL - 4

SP - 119

EP - 124

JO - Environmental Science and Technology Letters

JF - Environmental Science and Technology Letters

SN - 2328-8930

IS - 3

ER -