通过直接空气剥离从无氧消化物中生产富含蛋白质的微藻,以供应气态和碳
Raffaele Manzo1, Stefano Papirio1, Giovanni Esposito1
1Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, via Claudio 21, 80125 Naples, Italy.
Waste management (New York, N.Y.)
|October 16, 2025
概括
这项研究使用空气剥离从废物中回收气,以培养富含蛋白质的微藻. 这种方法有效地将废转化为有价值的生物质,支持可持续的做法.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 从废物流中回收 (N) 对环境保护和资源循环性至关重要.
- 微藻生物质生产需要可持续的源来进行蛋白质合成.
- 无氧消化剂是一种富含的废物流,具有营养回收的潜力.
研究的目的:
- 将从无氧消化物中回收氨的直接通风剥离与微藻种植相结合.
- 为了将回收的气态氨和二氧化碳转化为富含蛋白质的微藻生物质.
- 优化系统配置和通风流量,以实现高效的回收和微藻生长.
主要方法:
- 从无氧消化剂中直接空气剥离氨和二氧化碳.
- 在光生物反应器中使用回收气体培养混合微藻培养.
- 与使用矿物或直接消化剂添加的对照组进行比较.
- 优化空气流量和系统配置.
主要成果:
- 一个封闭的系统与2L/h的通风流率产生了最高的微藻生物质 (1239.6±294.3毫克VSS/L).
- 在最佳条件下,氨的剥离效率达到69.9%.
- 观察到最大的同化成蛋白质 (61.6 ± 2.6%).
- 生产的微藻生物质表现出有利的必需氨基酸特征.
结论:
- 直接通风N-stripping是从废物流中回收的有效策略.
- 这种方法可以将废循环升级为有价值的微藻生物质.
- 该过程防止了来自消化物基质的交叉污染,确保了产品的纯度.
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