废水电生物修复的生物表面活性剂、聚羟基烷酸酯和其他附加值产品:一种新的生物炼制概念。

4区 工程技术 Q2 Biochemistry, Genetics and Molecular Biology
Argyro Tsipa, Constantina K Varnava, Rosa Anna Nastro, Ioannis Ieropoulos
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引用次数: 0

摘要

废水的电生物修复是一种基于微生物电化学技术(METs)的新型、基于自然的清洁水解决方案。废水处理的电生物修复技术,除了提高生物修复效果和产生可再生能源外,还为收集副产品并将其用于其他应用提供了无限的机会。这一概念有助于循环、可持续性和环境兼容性,减轻气候变化的影响。此外,废水的增值和水的弹性是可能的,从而导致水资源的保护。参与废水电辅助生物降解的微生物自然合成的化合物和代谢物可以增强细胞外电子转移(EET)和生物修复。这些微生物产品是增值的、天然的、无毒的和可生物降解的,如生物表面活性剂(bsf)和聚羟基烷酸酯(pha)。在本章中,将详尽地评估在电生物修复过程中,以及用传统底物饲喂MET时,bsf和pha存在的影响。本文还研究了外源添加bsf的意义。讨论了电-生物修复过程中产生的主要副产物,包括有机酸、生物聚合物、回收的重金属和花青苷等非那嗪类化合物。最后,提出了污水电生物修复的发展方向。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Biosurfactants, Polyhydroxyalkanoates, and Other Added-Value Products from Wastewater Electro-bioremediation: A New Biorefinery Concept.

Electro-bioremediation of wastewater is a novel, nature-based solution towards clean water, based on microbial electrochemical technologies (METs). Electro-bioremediation technologies for wastewater treatment, except enhanced bioremediation results and renewable energy generation, offer an unlocked opportunity for harvesting by-products and using them in other applications. This concept contributes to circularity, sustainability, and environmental compatibility, mitigating the impact of climate change. In addition, wastewater valorization and, thus, water resilience are possible thereby leading to protection of water resources. Compounds and metabolites naturally synthesized by the microorganisms involved in the wastewater electro-assisted biodegradation, can result in the enhancement of both extracellular electron transfer (EET) and bioremediation. Such microbial products are added-value, natural, non-toxic and biodegradable such as biosurfactants (BSFs) and polyhydroxyalkanoates (PHAs). In this chapter, the effect of the presence of BSFs and PHAs in MET during electro-bioremediation, as well as when fed with conventional substrates, are exhaustively evaluated. The significance of BSFs even when they are added exogenously is also examined. The major categories of by-products biosynthesis including organic acids, biopolymers, recovered heavy metals and phenazines such as pyocyanin during electro-bioremediation processes are also discussed. Consequently, a future direction in wastewater electro-bioremediation is proposed.

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来源期刊
Advances in biochemical engineering/biotechnology
Advances in biochemical engineering/biotechnology 工程技术-生物工程与应用微生物
CiteScore
5.70
自引率
0.00%
发文量
29
期刊介绍: Advances in Biochemical Engineering/Biotechnology reviews actual trends in modern biotechnology. Its aim is to cover all aspects of this interdisciplinary technology where knowledge, methods and expertise are required for chemistry, biochemistry, microbiology, genetics, chemical engineering and computer science. Special volumes are dedicated to selected topics which focus on new biotechnological products and new processes for their synthesis and purification. They give the state-of-the-art of a topic in a comprehensive way thus being a valuable source for the next 3 - 5 years. It also discusses new discoveries and applications.
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