Mitigating ammonia nitrogen deficiency in dairy wastewaters for algae cultivation

Qian Lu; Wenguang Zhou; Min Min; Xiaochen Ma; Yiwei Ma; Paul Chen; Hongli Zheng; Yen T T Doan; Hui Liu; Chi Chen; Pedro E. Urriola; Gerald C. Shurson; Roger Ruan

doi:10.1016/j.biortech.2015.11.029

Mitigating ammonia nitrogen deficiency in dairy wastewaters for algae cultivation

Qian Lu, Wenguang Zhou, Min Min, Xiaochen Ma, Yiwei Ma, Paul Chen, Hongli Zheng, Yen T T Doan, Hui Liu, Chi Chen, Pedro E. Urriola, Gerald C. Shurson, Roger Ruan

Research output: Contribution to journal › Article › peer-review

94 Scopus citations

Abstract

This study demonstrated that the limiting factor to algae growth on dairy wastewater was the ammonia nitrogen deficiency. Dairy wastewaters were mixed with a slaughterhouse wastewater that has much higher ammonia nitrogen content. The results showed the mixing wastewaters improved the nutrient profiles and biomass yield at low cost. Algae grown on mixed wastewaters contained high protein (55.98-66.91%) and oil content (19.10-20.81%) and can be exploited to produce animal feed and biofuel. Furthermore, algae grown on mixed wastewater significantly reduced nutrient contents remained in the wastewater after treatment. By mitigating limiting factor to algae growth on dairy wastewaters, the key issue of low biomass yield of algae grown on dairy wastewaters was resolved and the wastewater nutrient removal efficiency was significantly improved by this study.

Original language	English (US)
Pages (from-to)	33-40
Number of pages	8
Journal	Bioresource Technology
Volume	201
DOIs	https://doi.org/10.1016/j.biortech.2015.11.029
State	Published - Feb 1 2016

Bibliographical note

Funding Information:
This work was in part supported by grants from Minnesota Legislative-Citizen Commission on Minnesota Resources ( LCCMR ), UMN MnDRIVE and Center for Biorefining .

Publisher Copyright:
© 2015.

Keywords

Biomass
Chlorella vulgaris
Dairy wastewater
Mixing
Nutrient removal

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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abstract = "This study demonstrated that the limiting factor to algae growth on dairy wastewater was the ammonia nitrogen deficiency. Dairy wastewaters were mixed with a slaughterhouse wastewater that has much higher ammonia nitrogen content. The results showed the mixing wastewaters improved the nutrient profiles and biomass yield at low cost. Algae grown on mixed wastewaters contained high protein (55.98-66.91%) and oil content (19.10-20.81%) and can be exploited to produce animal feed and biofuel. Furthermore, algae grown on mixed wastewater significantly reduced nutrient contents remained in the wastewater after treatment. By mitigating limiting factor to algae growth on dairy wastewaters, the key issue of low biomass yield of algae grown on dairy wastewaters was resolved and the wastewater nutrient removal efficiency was significantly improved by this study.",

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AU - Lu, Qian

AU - Zhou, Wenguang

AU - Min, Min

AU - Ma, Xiaochen

AU - Ma, Yiwei

AU - Chen, Paul

AU - Zheng, Hongli

AU - Doan, Yen T T

AU - Liu, Hui

AU - Chen, Chi

AU - Urriola, Pedro E.

AU - Shurson, Gerald C.

AU - Ruan, Roger

N1 - Funding Information: This work was in part supported by grants from Minnesota Legislative-Citizen Commission on Minnesota Resources ( LCCMR ), UMN MnDRIVE and Center for Biorefining . Publisher Copyright: © 2015.

PY - 2016/2/1

Y1 - 2016/2/1

N2 - This study demonstrated that the limiting factor to algae growth on dairy wastewater was the ammonia nitrogen deficiency. Dairy wastewaters were mixed with a slaughterhouse wastewater that has much higher ammonia nitrogen content. The results showed the mixing wastewaters improved the nutrient profiles and biomass yield at low cost. Algae grown on mixed wastewaters contained high protein (55.98-66.91%) and oil content (19.10-20.81%) and can be exploited to produce animal feed and biofuel. Furthermore, algae grown on mixed wastewater significantly reduced nutrient contents remained in the wastewater after treatment. By mitigating limiting factor to algae growth on dairy wastewaters, the key issue of low biomass yield of algae grown on dairy wastewaters was resolved and the wastewater nutrient removal efficiency was significantly improved by this study.

AB - This study demonstrated that the limiting factor to algae growth on dairy wastewater was the ammonia nitrogen deficiency. Dairy wastewaters were mixed with a slaughterhouse wastewater that has much higher ammonia nitrogen content. The results showed the mixing wastewaters improved the nutrient profiles and biomass yield at low cost. Algae grown on mixed wastewaters contained high protein (55.98-66.91%) and oil content (19.10-20.81%) and can be exploited to produce animal feed and biofuel. Furthermore, algae grown on mixed wastewater significantly reduced nutrient contents remained in the wastewater after treatment. By mitigating limiting factor to algae growth on dairy wastewaters, the key issue of low biomass yield of algae grown on dairy wastewaters was resolved and the wastewater nutrient removal efficiency was significantly improved by this study.

KW - Biomass

KW - Chlorella vulgaris

KW - Dairy wastewater

KW - Mixing

KW - Nutrient removal

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Mitigating ammonia nitrogen deficiency in dairy wastewaters for algae cultivation

Abstract

Bibliographical note

Keywords

UN SDGs

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