Novel three-stage microalgal cultivation system for lipid production utilizing nutrients derived from refinery waste

被引：0
|
作者：
Wang, Ruochen [1 ,2 ,3 ,4 ]
Zhu, Wei [2 ,3 ,4 ]
Sun, JiPeng [2 ,3 ,4 ]
Zhang, Chi [5 ]
Dai, Hongliang [1 ]
Qu, Tiantian [6 ]
机构：
[1] Jiangsu Univ Sci & Technol, Coll Environm & Chem Engn, Zhenjiang 212114, Peoples R China
[2] Hohai Univ, Coll Environm, Nanjing 210098, Peoples R China
[3] Hohai Univ, Inst Water Sci & Technol, Ctr Taihu Basin, Nanjing 211111, Peoples R China
[4] Hohai Univ, Natl Engn Res Ctr Water Resources Efficient Utiliz, Nanjing 211111, Peoples R China
[5] Hohai Univ, Coll Water Conservancy & Hydropower Engn, Nanjing 210098, Peoples R China
[6] SINOPEC Jinling Co, Water Treatment Dept, Nanjing 210033, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2024年 / 414卷
基金：
中国国家自然科学基金;
关键词：
Microalgae; Environmental Induction Methods; Hysteresis Phenomenon; Carbonic Anhydrase; Biodiesel; OXIDATION; WATER; GROWTH; SLUDGE;
D O I：
10.1016/j.biortech.2024.131623
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The pollution and transformation of refineries are receiving increasing attention. The carbonic anhydrase in Tetradesmus obliquus was found exhibiting a hysteresis phenomenon in response to periodic changes in the composition of external carbon sources, with a surge in inorganic carbon concentration stressing the carbonic anhydrase activity to increase by 6-9 times. On this basis, a novel three-stage culture system of T. obliquus was proposed, which mainly uses refinery waste as the nutrients. By controlling the nutrient content in the environment, especially the composition of carbon sources, microalgae could sequentially complete rapid biomass accumulation, efficient inorganic carbon assimilation, and oil production. Compared to a single-environment culture system, the biomass yield increased by 1.34 times, the oil content increased by more than 6%, and the oil productivity increased by 2.08 times. Above findings may lay a partial theoretical foundation for the future evolution of traditional refineries towards "fossil-algal-biomass" hybrid refineries.
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页数：10
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