在生物甲工厂中整合微藻生长:过程设计,建模和成本评估
Simone Rossi1, Davide Carecci1, Francesca Marazzi2
1Politecnico di Milano, DICA - Department of Civil and Environmental Engineering, 2, P.zza Leonardo da Vinci, 20133 Milano, Italy.
Heliyon
|January 1, 2024
概括
将微藻种植整合到无氧消化 (AD) 植物中可以恢复营养和二氧化碳. 这种生物炼油厂的设计可以为不断扩大的生物刺激剂市场生产具有成本效益的微藻生物质,证明了营养回收的技术和经济可行性.
科学领域:
- 生物技术和生物工程 生物技术和生物工程
- 环境科学 环境科学
- 可持续化学 可持续化学
背景情况:
- 无氧消化 (AD) 植物产生富含营养的消化物和二氧化碳,是微藻种植的理想投入.
- 生物刺激剂市场正在迅速扩大,创造了对可持续和成本效益高的生物质来源的需求.
- 微藻可以有效地利用废物流,为资源管理提供循环经济方法.
研究的目的:
- 设计和评估一个完整的生物炼油厂,将微藻种植与无氧消化相结合.
- 评估为生物刺激剂市场生产微藻生物质的技术和经济可行性.
- 确定阻碍基于微藻的生物炼油厂发展的障碍.
主要方法:
- 设计了一种三阶段的微藻培养过程:在管状光生物反应器 (PBR) 中进行注射,在赛道池中进行培养,并在发酵器中进行异质培养.
- 该生物炼油厂旨在处理液体消化物,生物气改造产生的二氧化碳和含糖的副产品.
- 进行了经济评估,以计算生物质生产成本.
主要成果:
- 拟议的生物炼油厂可以生产大约250t·y-1的微藻生物质.
- 生物质生产成本计算为2.8 ± 0.3 €·kg DW-1,与生物刺激剂生产成本相容.
- 营养恢复路线被认为在技术和经济上是可行的.
结论:
- 与AD植物集成的微藻种植是营养和二氧化碳回收的可行策略.
- 设计的生物炼油厂展示了生产微藻生物质用于生物刺激剂的成本效益高的方法.
- 解决过程,生物产品和政策障碍对于推进微藻生物炼油厂至关重要.
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