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
文献类型： 外文期刊
作者： Huo, Shuhao 1 ; Chen, Xiu 1 ; Zhu, Feifei 1 ; Zhang, Wanqin 4 ; Chen, Dongjie 2 ; Jin, Nana 1 ; Cobb, Kirk 2 ; Cheng, Yan 1 ;
作者机构： 1.Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang 212013, Jiangsu, Peoples R China
2.Univ Minnesota, Ctr Biorefining, St Paul, MN 55108 USA
3.Univ Minnesota, Dept Bioprod & Biosyst Engn, St Paul, MN 55108 USA
4.Chinese Acad Agr Sci, Inst Agr Environm & Sustainable Dev, Beijing 100081, Peoples R China
关键词： Filamentous microalgae; Magnetic field; Starch wastewater; Temperature; Culture mode
期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.642； 五年影响因子：9.237 ）
ISSN： 0960-8524
年卷期： 2020 年 303 卷
页码：
收录情况： SCI
摘要： 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 degrees 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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