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The Potential Contribution of Decentralized Anaerobic Digestion towards Urban Biowaste Recovery Systems: A Scoping Review
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems.ORCID iD: 0000-0002-6496-3311
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems.ORCID iD: 0000-0002-0033-9982
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems.ORCID iD: 0000-0001-9556-552X
2021 (English)In: Sustainability, E-ISSN 2071-1050, Vol. 13, no 23, p. 13435-13435Article in journal (Refereed) Published
Abstract [en]

The potential contribution of decentralized approaches in implementing biowaste recovery systems has attracted interest in urban policy making and scientific research. Although the scientific literature on the topic is rapidly increasing, it is still limited and scattered. A comprehensive overview of current scientific knowledge is thus needed to support future research on decentralized options for biowaste recovery systems. Anaerobic digestion (AD) is a mature biowaste treatment technology that recovers energy and nutrients, and can close urban resource loops. Through a scoping literature review, this paper investigated decentralized AD and its potential contribution in implementing urban biowaste recovery systems. We identified opportunities and challenges for planning of decentralized AD, and concluded that these mainly concern: (a) digestate management; (b) the potential for local circularity with product valorization in outlets such as urban agriculture; and (c) the development and application of decision support tools. The findings highlighted the need to enhance scientific evidence on the impact of decentralized AD in different urban contexts. Results from published studies were highly context-specific, making it difficult to draw general conclusions. This study can support the transition to integrated planning of AD and wider urban biowaste recovery systems. Such planning must include a comprehensive analysis of configuration approaches.

Place, publisher, year, edition, pages
MDPI AG , 2021. Vol. 13, no 23, p. 13435-13435
Keywords [en]
local circularity, decentralized biowaste management, circular economy, bioeconomy, biobased, resource recovery, anaerobic digestion
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:kth:diva-305934DOI: 10.3390/su132313435ISI: 000742956500001Scopus ID: 2-s2.0-85120827665OAI: oai:DiVA.org:kth-305934DiVA, id: diva2:1618498
Funder
Swedish Research Council Formas
Note

QC 20220131

Available from: 2021-12-09 Created: 2021-12-09 Last updated: 2022-06-25Bibliographically approved

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Ntostoglou, EftychiaKhatiwada, DilipMartin, Viktoria

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