Microalgae grow on source separated human urine in Nordic climate

Outdoor pilot-scale cultivation

Pritha Chatterjee, Marianna Granatier, Praveen Ramasamy, Marika Kokko, Aino-Maija Lakaniemi, Jukka Rintala

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Human urine contributes approximately 80% of nitrogen and 50% of phosphorous in urban wastewaters while having a volume of only 1–1.5 L/d per capita compared to 150–200 L/d per capita of wastewater generated. There is interest to study source separation of urine and search methods to recover the nutrients form the urine. In this study, the objective was to use the nutrients in source separated urine for outdoor cultivation of microalgae in Nordic climate. A freshwater green microalga Scenedesmus acuminatus was grown in different dilutions (1:20 and 1:15) of source separated human urine, in a semi-continuously operated outdoor raceway pond with a liquid volume of 2000 L, at hydraulic retention time of 15 d. The microalgae could remove 52% nitrogen and 38% phosphorus even at culture temperatures as low as 5 °C, while obtaining a biomass density of 0.34 g VSS/L. Harvested microalgal biomass could be used to produce methane with a yield of 285 L CH4/kg volatile solids.
OriginalsprogEngelsk
TidsskriftJournal of Environmental Management
Vol/bind237
Sider (fra-til)119-127
Antal sider9
ISSN0301-4797
DOI
StatusUdgivet - 2019
Udgivet eksterntJa

Citer dette

Chatterjee, Pritha ; Granatier, Marianna ; Ramasamy, Praveen ; Kokko, Marika ; Lakaniemi, Aino-Maija ; Rintala, Jukka. / Microalgae grow on source separated human urine in Nordic climate : Outdoor pilot-scale cultivation. I: Journal of Environmental Management. 2019 ; Bind 237. s. 119-127.
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title = "Microalgae grow on source separated human urine in Nordic climate: Outdoor pilot-scale cultivation",
abstract = "Human urine contributes approximately 80{\%} of nitrogen and 50{\%} of phosphorous in urban wastewaters while having a volume of only 1–1.5 L/d per capita compared to 150–200 L/d per capita of wastewater generated. There is interest to study source separation of urine and search methods to recover the nutrients form the urine. In this study, the objective was to use the nutrients in source separated urine for outdoor cultivation of microalgae in Nordic climate. A freshwater green microalga Scenedesmus acuminatus was grown in different dilutions (1:20 and 1:15) of source separated human urine, in a semi-continuously operated outdoor raceway pond with a liquid volume of 2000 L, at hydraulic retention time of 15 d. The microalgae could remove 52{\%} nitrogen and 38{\%} phosphorus even at culture temperatures as low as 5 °C, while obtaining a biomass density of 0.34 g VSS/L. Harvested microalgal biomass could be used to produce methane with a yield of 285 L CH4/kg volatile solids.",
author = "Pritha Chatterjee and Marianna Granatier and Praveen Ramasamy and Marika Kokko and Aino-Maija Lakaniemi and Jukka Rintala",
year = "2019",
doi = "10.1016/j.jenvman.2019.02.074",
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volume = "237",
pages = "119--127",
journal = "Journal of Environmental Management",
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Microalgae grow on source separated human urine in Nordic climate : Outdoor pilot-scale cultivation. / Chatterjee, Pritha; Granatier, Marianna; Ramasamy, Praveen; Kokko, Marika; Lakaniemi, Aino-Maija; Rintala, Jukka.

I: Journal of Environmental Management, Bind 237, 2019, s. 119-127.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Microalgae grow on source separated human urine in Nordic climate

T2 - Outdoor pilot-scale cultivation

AU - Chatterjee, Pritha

AU - Granatier, Marianna

AU - Ramasamy, Praveen

AU - Kokko, Marika

AU - Lakaniemi, Aino-Maija

AU - Rintala, Jukka

PY - 2019

Y1 - 2019

N2 - Human urine contributes approximately 80% of nitrogen and 50% of phosphorous in urban wastewaters while having a volume of only 1–1.5 L/d per capita compared to 150–200 L/d per capita of wastewater generated. There is interest to study source separation of urine and search methods to recover the nutrients form the urine. In this study, the objective was to use the nutrients in source separated urine for outdoor cultivation of microalgae in Nordic climate. A freshwater green microalga Scenedesmus acuminatus was grown in different dilutions (1:20 and 1:15) of source separated human urine, in a semi-continuously operated outdoor raceway pond with a liquid volume of 2000 L, at hydraulic retention time of 15 d. The microalgae could remove 52% nitrogen and 38% phosphorus even at culture temperatures as low as 5 °C, while obtaining a biomass density of 0.34 g VSS/L. Harvested microalgal biomass could be used to produce methane with a yield of 285 L CH4/kg volatile solids.

AB - Human urine contributes approximately 80% of nitrogen and 50% of phosphorous in urban wastewaters while having a volume of only 1–1.5 L/d per capita compared to 150–200 L/d per capita of wastewater generated. There is interest to study source separation of urine and search methods to recover the nutrients form the urine. In this study, the objective was to use the nutrients in source separated urine for outdoor cultivation of microalgae in Nordic climate. A freshwater green microalga Scenedesmus acuminatus was grown in different dilutions (1:20 and 1:15) of source separated human urine, in a semi-continuously operated outdoor raceway pond with a liquid volume of 2000 L, at hydraulic retention time of 15 d. The microalgae could remove 52% nitrogen and 38% phosphorus even at culture temperatures as low as 5 °C, while obtaining a biomass density of 0.34 g VSS/L. Harvested microalgal biomass could be used to produce methane with a yield of 285 L CH4/kg volatile solids.

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DO - 10.1016/j.jenvman.2019.02.074

M3 - Journal article

VL - 237

SP - 119

EP - 127

JO - Journal of Environmental Management

JF - Journal of Environmental Management

SN - 0301-4797

ER -