Magnetic field intervention on growth of the filamentous microalgae Tribonema sp. in starch wastewater for algal biomass production and nutrients removal: Influence of ambient temperature and operational strategy

Shuhao Huo; Xiu Chen; Feifei Zhu; Wanqin Zhang; Dongjie Chen; Nana Jin; Kirk Cobb; Yanling Cheng; Lu Wang; Roger Ruan

doi:10.1016/j.biortech.2020.122884

Magnetic field intervention on growth of the filamentous microalgae Tribonema sp. in starch wastewater for algal biomass production and nutrients removal: Influence of ambient temperature and operational strategy

Shuhao Huo, Xiu Chen, Feifei Zhu, Wanqin Zhang, Dongjie Chen, Nana Jin, Kirk Cobb, Yanling Cheng, Lu Wang, Roger Ruan

Bioproducts and Biosystems Engineering

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

41 Scopus citations

Abstract

This paper investigated the effects of temperature and cultivation methods (batch or semi-continuous culture) on the filamentous microalgae Tribonema sp. biomass production and nutrients removal in starch wastewater under low intensity magnetic field (MF) intervention. The MF significantly promoted algal growth in the late logarithmic-phase of batch cultivation, and the effect was even more obvious at lower temperatures. The MF treated group at 30 °C accumulated the highest biomass of 4.44 g/L of batch culture, an increase of 15.0% compared with the control group. The oil content of Tribonema sp. was enhanced with the MF intervention, especially for the batch culture. In the semi-continuous culture under MF intervention, Tribonema sp. reached the high biomass of 18.45 g/L after 25 days. When gradually reducing hydraulic retention time (HRT) to 1 day, the average removal rates for COD, TN, NH₃-N and TP were all more than 90% in the semi-continuous cultivation.

Original language	English (US)
Article number	122884
Journal	Bioresource Technology
Volume	303
DOIs	https://doi.org/10.1016/j.biortech.2020.122884
State	Published - May 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.

Keywords

Culture mode
Filamentous microalgae
Magnetic field
Starch wastewater
Temperature

PubMed: MeSH publication types

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Huo, S., Chen, X., Zhu, F., Zhang, W., Chen, D., Jin, N., Cobb, K., Cheng, Y., Wang, L., & Ruan, R. (2020). Magnetic field intervention on growth of the filamentous microalgae Tribonema sp. in starch wastewater for algal biomass production and nutrients removal: Influence of ambient temperature and operational strategy. Bioresource Technology, 303, Article 122884. https://doi.org/10.1016/j.biortech.2020.122884

Magnetic field intervention on growth of the filamentous microalgae Tribonema sp. in starch wastewater for algal biomass production and nutrients removal: Influence of ambient temperature and operational strategy. / Huo, Shuhao; Chen, Xiu; Zhu, Feifei et al.
In: Bioresource Technology, Vol. 303, 122884, 05.2020.

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

Huo, S, Chen, X, Zhu, F, Zhang, W, Chen, D, Jin, N, Cobb, K, Cheng, Y, Wang, L & Ruan, R 2020, 'Magnetic field intervention on growth of the filamentous microalgae Tribonema sp. in starch wastewater for algal biomass production and nutrients removal: Influence of ambient temperature and operational strategy', Bioresource Technology, vol. 303, 122884. https://doi.org/10.1016/j.biortech.2020.122884

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abstract = "This paper investigated the effects of temperature and cultivation methods (batch or semi-continuous culture) on the filamentous microalgae Tribonema sp. biomass production and nutrients removal in starch wastewater under low intensity magnetic field (MF) intervention. The MF significantly promoted algal growth in the late logarithmic-phase of batch cultivation, and the effect was even more obvious at lower temperatures. The MF treated group at 30 °C accumulated the highest biomass of 4.44 g/L of batch culture, an increase of 15.0% compared with the control group. The oil content of Tribonema sp. was enhanced with the MF intervention, especially for the batch culture. In the semi-continuous culture under MF intervention, Tribonema sp. reached the high biomass of 18.45 g/L after 25 days. When gradually reducing hydraulic retention time (HRT) to 1 day, the average removal rates for COD, TN, NH3-N and TP were all more than 90% in the semi-continuous cultivation.",

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author = "Shuhao Huo and Xiu Chen and Feifei Zhu and Wanqin Zhang and Dongjie Chen and Nana Jin and Kirk Cobb and Yanling Cheng and Lu Wang 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. ",

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AU - Cobb, Kirk

AU - Cheng, Yanling

AU - Wang, Lu

AU - Ruan, Roger

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AB - This paper investigated the effects of temperature and cultivation methods (batch or semi-continuous culture) on the filamentous microalgae Tribonema sp. biomass production and nutrients removal in starch wastewater under low intensity magnetic field (MF) intervention. The MF significantly promoted algal growth in the late logarithmic-phase of batch cultivation, and the effect was even more obvious at lower temperatures. The MF treated group at 30 °C accumulated the highest biomass of 4.44 g/L of batch culture, an increase of 15.0% compared with the control group. The oil content of Tribonema sp. was enhanced with the MF intervention, especially for the batch culture. In the semi-continuous culture under MF intervention, Tribonema sp. reached the high biomass of 18.45 g/L after 25 days. When gradually reducing hydraulic retention time (HRT) to 1 day, the average removal rates for COD, TN, NH3-N and TP were all more than 90% in the semi-continuous cultivation.

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Magnetic field intervention on growth of the filamentous microalgae Tribonema sp. in starch wastewater for algal biomass production and nutrients removal: Influence of ambient temperature and operational strategy

Abstract

Bibliographical note

Keywords

PubMed: MeSH publication types

UN SDGs

Access

OpenUrl availability

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Cite this