Pan Shu-Yuan, Tsai Cheng-Yen, Liu Chen-Wuing, Wang Sheng-Wei, Kim Hyunook, Fan Chihhao
Department of Bioenvironmental Systems Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan (ROC).
Graduate Institute of Environmental Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan (ROC).
iScience. 2021 Jun 10;24(7):102704. doi: 10.1016/j.isci.2021.102704. eCollection 2021 Jul 23.
A huge amount of agricultural wastes and waste activated-sludge are being generated every year around the world. Anaerobic co-digestion (AcD) has been considered as an alternative for the utilization of organic matters from such organic wastes by producing bioenergy and biochemicals to realize a circular bioeconomy. Despite recent advancement in AcD processes, the effect of feedstock compositions and operating conditions on the biomethane production processe has not been critically explored. In this paper, we have reviewed the effects of feedstock (organic wastes) characteristics, including particle size, carbon-to-nitrogen ratio, and pretreatment options, on the performance of an anaerobic digestion process. In addition, we provided an overview of the effect of key control parameters, including retention time, temperature, pH of digestate, volatile fatty acids content, total solids content, and organic loading rate. Lastly, based on the findings from the literature, we have presented several perspectives and prospects on priority research to promote AcD to a steppingstone for a circular bioeconomy.
每年全球都会产生大量的农业废弃物和废弃活性污泥。厌氧共消化（AcD）被认为是一种通过生产生物能源和生化产品来利用此类有机废弃物中有机物的替代方法，以实现循环生物经济。尽管AcD工艺最近取得了进展，但原料组成和操作条件对生物甲烷生产过程的影响尚未得到深入研究。在本文中，我们综述了原料（有机废弃物）特性，包括粒径、碳氮比和预处理方法，对厌氧消化过程性能的影响。此外，我们还概述了关键控制参数的影响，包括停留时间、温度、消化液pH值、挥发性脂肪酸含量、总固体含量和有机负荷率。最后，基于文献中的研究结果，我们提出了一些关于优先研究的观点和展望，以推动AcD成为循环生物经济的垫脚石。
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