National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, East China University of Science and Technology, Shanghai, China.
State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control On Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, China.
Environ Sci Pollut Res Int. 2024 Jan;31(4):6054-6066. doi: 10.1007/s11356-023-31640-z. Epub 2023 Dec 26.
Microalgae can use carbon sources in sludge extract prepared from sludge. Moreover, the high concentration of CO and the large number of carbon sources in the liquid phase will promote microalgae growth and metabolism. In this experiment, Tetradesmus obliquus was cultivated with sludge extract at 30% CO. Algae liquid (the name used to describe the fertilizer made in this research) was further prepared as lettuce fertilizer. The effect of different times of microalgae culture (10, 15, 20, 25, and 30 days) on the fertilizer efficiency of the algae liquid was evaluated by lettuce hydroponic experiments. The findings indicate that lettuce cultivated in algae liquid collected on the 15th and 30th days exhibited superior performance in terms of growth, antioxidant capacity, and nutritional quality. We analyzed the experimental results in the context of microalgae metabolic mechanisms, aiming to contribute experience and data essential for the development of industrial microalgae fertilizer production.
微藻可以利用从污泥中提取的污泥提取物中的碳源。此外，液相中高浓度的 CO 和大量的碳源将促进微藻的生长和代谢。在这项实验中，斜生栅藻在 30%CO 的条件下用污泥提取物培养。进一步将藻液（用于描述本研究中制备的肥料的名称）制备为生菜肥料。通过生菜水培实验评价了不同微藻培养时间（10、15、20、25 和 30 天）对藻液肥效的影响。结果表明，在 15 天和 30 天收集的藻液培养的生菜在生长、抗氧化能力和营养品质方面表现出色。我们根据微藻代谢机制分析了实验结果，旨在为工业微藻肥料生产的发展提供必要的经验和数据。
