停止厌氧消化回收挥发性脂肪酸用于可持续航空燃料生产的研究进展

IF 3.3 3区农林科学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Fermentation-Basel Pub Date : 2023-09-08 DOI:10.3390/fermentation9090821

X. Ge, Yian Chen, Violeta Sànchez i Nogué, Yebo Li

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引用次数: 0

摘要

从有机废物生产可持续航空燃料（SAF）的过程涉及使用挥发性脂肪酸（VFA）作为中间体，这些挥发性脂肪酸是通过停止厌氧消化（AAD）和VFA回收获得的。这种回收过程通常需要几个步骤，包括脱水、过滤、提取和纯化。VFA的回收对其升级至关重要，并且由于高成本和兼容性问题，可能对从有机废物生产SAF构成挑战。这篇综述讨论了各种脱水方法，包括离心机、带式压滤机和螺旋压榨机，并探索了可以提高脱水性能的调理技术。它还介绍了过滤技术，重点是动态过滤，这在解决膜污染问题方面显示出了前景。此外，该综述还介绍了电渗析、吸附和液-液萃取（LLE）等萃取技术。通过深入了解这些不同的技术，该综述旨在为开发低碳足迹的综合VFA回收工艺做出贡献。

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Volatile Fatty Acid Recovery from Arrested Anaerobic Digestion for the Production of Sustainable Aviation Fuel: A Review

The process of producing sustainable aviation fuel (SAF) from organic waste involves the use of volatile fatty acids (VFAs) as intermediates that are obtained via arrested anaerobic digestion (AAD) and VFA recovery. This recovery process often requires several steps, including dewatering, filtration, extraction, and purification. The recovery of VFAs is crucial for their upgrading and can pose a challenge in the production of SAF from organic waste due to high costs and compatibility issues. This review discusses various dewatering methods, including centrifuges, belt filter presses, and screw presses, and explores conditioning technologies that can improve dewatering performance. It also introduces filtration technologies, with a focus on dynamic filtration, which shows promise in addressing the issue of membrane fouling. Additionally, the review describes extraction technologies such as electrodialysis, adsorption, and liquid–liquid extraction (LLE). By providing insights into these different techniques, the review aims to contribute to the development of an integrated VFA recovery process with low carbon footprint.

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