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水相循环:对微藻脂质积累和生物质质量影响

Adriana Ramírez-Romero^1,2, Bruno da Costa Magalhães³, Lucie Matricon⁴

¹MicroAlgae Processes Platform-CEA, CEA Tech Région Sud, 13108, Saint-Paul-Lez-Durance, France. adriana.rzmr@gmail.com.

Environmental science and pollution research international

|March 4, 2024

概括

从水热液化 (HTL) 中回收水相 (AP) 支持微藻生长和生物燃料生产的营养回收. 然而,AP可以对脂质积累产生负面影响,影响生物质中的总体能量含量.

科学领域:

生物技术和生物工程生物技术和生物工程
可再生能源可再生能源是可再生能源.
培养藻类培养藻类

背景情况:

微藻生物燃料对于可持续能源至关重要,水热液化 (HTL) 将湿生物质转化为生物原料.
回收HTL水相 (AP) 对于营养恢复和关闭藻类生物质生产循环至关重要.

研究的目的:

评估循环HTL水相 (AP) 在五个周期内对五种Chlorellaceae菌株的种植的影响.
评估AP如何影响生物质和脂质积累,特别是在第五周期的营养有限条件下.

主要方法:

在5个周期中种植5种Chlorellaceae菌株,第五个周期在营养限制下延长到18天.
当使用AP作为基质时,监测生物质产量,脂质含量和营养需求 (N,S,P).
分析脂质生产率和生物质特性,以确定AP回收的效果.

主要成果:

AP回收减少了对外部N,S和P的需求,产生了相当大的生物质 (2.95-4.27g/L),脂质含量为16-36%.
AP的存在导致了低于最佳的生物质特性,减缓了脂质积累,并降低了所有测试菌株的能量含量.
菌 (Chlorella vulgaris) NIES 227显示出最高的脂质生产率,尽管它在AP上没有最好的生长率.

结论:

回收HTL水相是微藻种植中营养物质回收和生物质生产的可行策略.
需要进一步优化,以减轻AP对脂质积累的负面影响,以提高生物燃料生产.
了解AP的影响对于提高生物燃料水热液化 (HTL) 过程的效率至关重要.

关键词:

绿色燃料是一种绿色燃料.水热液化液化的方法微藻生物质是微藻的生物质.营养素循环的循环.可再生原料是可再生的原料.

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