Anaerobic digestion in global bio-energy production for sustainable bioeconomy: Potential and research challenges

IF 16.3 1区工程技术 Q1 ENERGY & FUELS

Renewable and Sustainable Energy Reviews Pub Date : 2024-10-17 DOI:10.1016/j.rser.2024.114985

Yumin Duan , Zhi Wang , Prabakaran Ganeshan , Taner Sar , Suyun Xu , Karthik Rajendran , Raveendran Sindhu , Parameswaran Binod , Ashok Pandey , Zengqiang Zhang , Mohammad J. Taherzadeh , Mukesh Kumar Awasthi

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Abstract

Wastes are unceasingly generated in the world, and most of them can be recycled, reused, or recovered to promote a circular economy. Among waste treatment approaches, the anaerobic digestion (AD) process has been considered as an ideal process due to its ecological benefits (reduction of unpleasant odor, pathogens accumulation, or greenhouse gas emission), social and economic advantages, and energy saving. In addition to biogas production, this process can be used to produce various bioproducts, such as biopolymers, bioplastics, biomass, biofertilizers, and biolipids. Interestingly, the AD process residue or digestate is a nutrient-rich by-product that can be used as a biofertilizer for agronomical purposes to balance N-P cycle in the soils. Despite of numerous benefits of AD, less than 1 % of waste is treated by this process. This process has the potential to be integrated with other waste treatment approaches to increase waste treatment efficiency. Therefore, it is essential to focus on each advantage and clarify ambiguity in order to satisfy more countries for employing AD for waste treatment. In this review, various benefits of AD are evaluated; and its potential impacts on particularly agriculture are examined in detail. Additionally, potential biomass and wastes that can be used for anaerobic digestion worldwide are deliberated. Besides, a critical perspective has been developed on the economic, environmental, and social evaluation of the benefits of AD and, as a final point, focused on an integrated circular cascading approach.

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厌氧消化在全球生物能源生产中的应用，促进可持续生物经济：潜力和研究挑战

世界上的废物源源不断地产生，其中大部分可以循环利用、再利用或回收，以促进循环经济的发展。在各种废物处理方法中，厌氧消化（AD）工艺因其生态效益（减少难闻气味、病原体积累或温室气体排放）、社会和经济优势以及节能而被认为是一种理想的工艺。除生产沼气外，该工艺还可用于生产各种生物产品，如生物聚合物、生物塑料、生物质、生物肥料和生物脂等。有趣的是，厌氧消化工艺的残渣或沼渣是一种营养丰富的副产品，可用作农用生物肥料，以平衡土壤中的氮磷循环。尽管厌氧消化工艺好处多多，但通过该工艺处理的废物却不到 1%。该工艺有可能与其他废物处理方法相结合，以提高废物处理效率。因此，有必要关注每个优点并澄清模糊之处，以满足更多国家采用厌氧消化（AD）技术处理废物的需求。本综述评估了厌氧消化（AD）的各种优势，并详细分析了其对农业的潜在影响。此外，还讨论了全球范围内可用于厌氧消化的潜在生物质和废物。此外，还从经济、环境和社会角度对厌氧消化的益处进行了评估，最后重点讨论了综合循环级联方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Renewable and Sustainable Energy Reviews 工程技术-能源与燃料

CiteScore

31.20

自引率

5.70%

发文量

1055

审稿时长

62 days

期刊介绍： The mission of Renewable and Sustainable Energy Reviews is to disseminate the most compelling and pertinent critical insights in renewable and sustainable energy, fostering collaboration among the research community, private sector, and policy and decision makers. The journal aims to exchange challenges, solutions, innovative concepts, and technologies, contributing to sustainable development, the transition to a low-carbon future, and the attainment of emissions targets outlined by the United Nations Framework Convention on Climate Change. Renewable and Sustainable Energy Reviews publishes a diverse range of content, including review papers, original research, case studies, and analyses of new technologies, all featuring a substantial review component such as critique, comparison, or analysis. Introducing a distinctive paper type, Expert Insights, the journal presents commissioned mini-reviews authored by field leaders, addressing topics of significant interest. Case studies undergo consideration only if they showcase the work's applicability to other regions or contribute valuable insights to the broader field of renewable and sustainable energy. Notably, a bibliographic or literature review lacking critical analysis is deemed unsuitable for publication.