Post treatment of swine anaerobic effluent by weak electric field following intermittent vacuum assisted adjustment of N:P ratio for oil-rich filamentous microalgae production

Shuhao Huo; Junzhi Liu; Feifei Zhu; Sajid Basheer; David Necas; Renchuan Zhang; Kun Li; Dongjie Chen; Pengfei Cheng; Krik Cobb; Paul Chen; Bailey Brandel; Roger Ruan

doi:10.1016/j.biortech.2020.123718

Post treatment of swine anaerobic effluent by weak electric field following intermittent vacuum assisted adjustment of N:P ratio for oil-rich filamentous microalgae production

Shuhao Huo, Junzhi Liu, Feifei Zhu, Sajid Basheer, David Necas, Renchuan Zhang, Kun Li, Dongjie Chen, Pengfei Cheng, Krik Cobb, Paul Chen, Bailey Brandel, Roger Ruan

Bioproducts and Biosystems Engineering

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

28 Scopus citations

Abstract

A weak electric field (EF) was applied to decolorize the swine anaerobic effluent, which was followed by N:P ratio adjustment via intermittent-vacuum stripping (IVS) system for oil-rich filamentous microalgae Tribonema sp. cultivation. A higher electric field strength, higher temperature, and lower pH conditions showed higher efficiency in decolorization and nutrients removal during EF application. In the group of 30:1 (N:P) ratio, Tribonema sp. had the largest biomass accumulation (2.04 g·L⁻¹) after 14 days cultivation. However, the 20:1 group had highest oil accumulation (oil content 55.4 ± 3.4%), while 30:1 (N: P) group was 42.3 ± 1.8%. Under the conditions of sufficient nitrogen (50:1 group), the highest contents of α-linolenic acid (15.5%) and ω-3 fatty acids (21.8%) were reached. The integrated treatment of EF, IVS and microalgae cultivation demonstrated to be effective for nutrients recycling and sustainable biomass production.

Original language	English (US)
Article number	123718
Journal	Bioresource Technology
Volume	314
DOIs	https://doi.org/10.1016/j.biortech.2020.123718
State	Published - Oct 2020

Bibliographical note

Funding Information:
This research was supported in part by the National Natural Science Foundation of China ( 21978120 ), and the Jiangsu Government Scholarship for Overseas Studies.

Publisher Copyright:
© 2020 Elsevier Ltd

Keywords

Anaerobic digestion wastewater
Electro-coagulation
Fattyacid composition
Nutrient recovery
Tribonema sp.

PubMed: MeSH publication types

Journal Article

UN SDGs

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

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10.1016/j.biortech.2020.123718

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Huo, S., Liu, J., Zhu, F., Basheer, S., Necas, D., Zhang, R., Li, K., Chen, D., Cheng, P., Cobb, K., Chen, P., Brandel, B., & Ruan, R. (2020). Post treatment of swine anaerobic effluent by weak electric field following intermittent vacuum assisted adjustment of N:P ratio for oil-rich filamentous microalgae production. Bioresource Technology, 314, Article 123718. https://doi.org/10.1016/j.biortech.2020.123718

Huo, S, Liu, J, Zhu, F, Basheer, S, Necas, D, Zhang, R, Li, K, Chen, D, Cheng, P, Cobb, K, Chen, P, Brandel, B & Ruan, R 2020, 'Post treatment of swine anaerobic effluent by weak electric field following intermittent vacuum assisted adjustment of N:P ratio for oil-rich filamentous microalgae production', Bioresource Technology, vol. 314, 123718. https://doi.org/10.1016/j.biortech.2020.123718

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abstract = "A weak electric field (EF) was applied to decolorize the swine anaerobic effluent, which was followed by N:P ratio adjustment via intermittent-vacuum stripping (IVS) system for oil-rich filamentous microalgae Tribonema sp. cultivation. A higher electric field strength, higher temperature, and lower pH conditions showed higher efficiency in decolorization and nutrients removal during EF application. In the group of 30:1 (N:P) ratio, Tribonema sp. had the largest biomass accumulation (2.04 g·L−1) after 14 days cultivation. However, the 20:1 group had highest oil accumulation (oil content 55.4 ± 3.4%), while 30:1 (N: P) group was 42.3 ± 1.8%. Under the conditions of sufficient nitrogen (50:1 group), the highest contents of α-linolenic acid (15.5%) and ω-3 fatty acids (21.8%) were reached. The integrated treatment of EF, IVS and microalgae cultivation demonstrated to be effective for nutrients recycling and sustainable biomass production.",

keywords = "Anaerobic digestion wastewater, Electro-coagulation, Fattyacid composition, Nutrient recovery, Tribonema sp.",

author = "Shuhao Huo and Junzhi Liu and Feifei Zhu and Sajid Basheer and David Necas and Renchuan Zhang and Kun Li and Dongjie Chen and Pengfei Cheng and Krik Cobb and Paul Chen and Bailey Brandel and Roger Ruan",

note = "Funding Information: This research was supported in part by the National Natural Science Foundation of China ( 21978120 ), and the Jiangsu Government Scholarship for Overseas Studies. Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

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doi = "10.1016/j.biortech.2020.123718",

language = "English (US)",

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AU - Huo, Shuhao

AU - Liu, Junzhi

AU - Zhu, Feifei

AU - Basheer, Sajid

AU - Necas, David

AU - Zhang, Renchuan

AU - Li, Kun

AU - Chen, Dongjie

AU - Cheng, Pengfei

AU - Cobb, Krik

AU - Chen, Paul

AU - Brandel, Bailey

AU - Ruan, Roger

N1 - Funding Information: This research was supported in part by the National Natural Science Foundation of China ( 21978120 ), and the Jiangsu Government Scholarship for Overseas Studies. Publisher Copyright: © 2020 Elsevier Ltd

PY - 2020/10

Y1 - 2020/10

N2 - A weak electric field (EF) was applied to decolorize the swine anaerobic effluent, which was followed by N:P ratio adjustment via intermittent-vacuum stripping (IVS) system for oil-rich filamentous microalgae Tribonema sp. cultivation. A higher electric field strength, higher temperature, and lower pH conditions showed higher efficiency in decolorization and nutrients removal during EF application. In the group of 30:1 (N:P) ratio, Tribonema sp. had the largest biomass accumulation (2.04 g·L−1) after 14 days cultivation. However, the 20:1 group had highest oil accumulation (oil content 55.4 ± 3.4%), while 30:1 (N: P) group was 42.3 ± 1.8%. Under the conditions of sufficient nitrogen (50:1 group), the highest contents of α-linolenic acid (15.5%) and ω-3 fatty acids (21.8%) were reached. The integrated treatment of EF, IVS and microalgae cultivation demonstrated to be effective for nutrients recycling and sustainable biomass production.

AB - A weak electric field (EF) was applied to decolorize the swine anaerobic effluent, which was followed by N:P ratio adjustment via intermittent-vacuum stripping (IVS) system for oil-rich filamentous microalgae Tribonema sp. cultivation. A higher electric field strength, higher temperature, and lower pH conditions showed higher efficiency in decolorization and nutrients removal during EF application. In the group of 30:1 (N:P) ratio, Tribonema sp. had the largest biomass accumulation (2.04 g·L−1) after 14 days cultivation. However, the 20:1 group had highest oil accumulation (oil content 55.4 ± 3.4%), while 30:1 (N: P) group was 42.3 ± 1.8%. Under the conditions of sufficient nitrogen (50:1 group), the highest contents of α-linolenic acid (15.5%) and ω-3 fatty acids (21.8%) were reached. The integrated treatment of EF, IVS and microalgae cultivation demonstrated to be effective for nutrients recycling and sustainable biomass production.

KW - Anaerobic digestion wastewater

KW - Electro-coagulation

KW - Fattyacid composition

KW - Nutrient recovery

KW - Tribonema sp.

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Post treatment of swine anaerobic effluent by weak electric field following intermittent vacuum assisted adjustment of N:P ratio for oil-rich filamentous microalgae production

Abstract

Bibliographical note

Keywords

PubMed: MeSH publication types

UN SDGs

Publisher link

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