Cited by 289Anaerobic Digestion and Biogas ProductionComposting and Vermicomposting TechniquesLandfill Environmental Impact Studies

Management strategies for anaerobic digestate of organic fraction of municipal solid waste: Current status and future prospects

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Logan, Mohanakrishnan, Visvanathan, Chettiyappan·2019·Waste Management & Research: The Journal for a Sustainable Circular Economy

Abstract

Anaerobic digestion has emerged as the preferred treatment for organic fraction of municipal solid waste. Digestate management strategies are devised not only for safe disposal but also to increase the value and marketability. Regulations and standards for digestate management are framed to address the pollution concerns, conserve vulnerable zones, prevent communicable diseases, and to educate on digestate storage and applications. Regulations and the desired end uses are the main drivers for the enhancement of digestate through pretreatment, in vessel cleaning, and post-digestion treatment technologies for solid and liquid fractions of digestate. The current management practice involves utilization of digestate for land application either as fertilizer or soil improver. Prospects are bright for alternative usage such as microalgal cultivation, biofuel and bioethanol production. Presently, the focus of optimization of the anaerobic digestion process is directed only towards enhancing biogas yield, ignoring the quality of digestate produced. A paradigm shift is needed in the approach from ‘biogas optimization’ to ‘integrated biogas–digestate optimization’.

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Registry

Crossref · 10.1177/0734242x18816793

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37 of 37 references verified0 citation errors · 0 not checkable

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  • Several techniques are available for separating liquid and solid digestate fractions, including centrifugation, screw press, and belt filter presses.

    “There are several techniques available for accomplishing this task, including centrifugation, screw press, and belt filter presses [103].”
  • Liquid fraction of digestate can undergo additional treatment techniques, such as membrane filtration or reverse osmosis, to eliminate contaminants and pathogens and reclaim valuable nutrients.

    “The liquid fraction can undergo additional treatment techniques, such as membrane filtration or reverse osmosis, in order to eliminate contaminants and pathogens, as well as to reclaim valuable nutrients [103].”
  • Governments and environmental authorities globally are progressively acknowledging the significance of regulating the management, processing, and usage of digestate.

    “Governments and environmental authorities globally are progressively acknowledging the significance of regulating the management, processing, and usage of digestate, which is a nutrient-dense residue produced by anaerobic digestion [103].”

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Authors
Logan, M., & Visvanathan, C.
Affiliations
Asian Institute of Technology (TH)
Corresponding author
Visvanathan, Chettiyappan
Venue
Waste Management & Research: The Journal for a Sustainable Circular Economy
Published
2019-01
Volume
37
Issue
1_suppl
Pages
27-39
ISSN
  • 0734-242X (ISSN-L)
  • 1096-3669
OpenAlex
W2914767985
Cited by
289
References
37
Citations by year
2026: 22 · 2025: 35 · 2024: 46 · 2023: 46 · 2022: 65 · 2021: 41 · 2020: 25 · 2019: 8
FWCI
23.29
Type
journal article
Language
en
Open access
Locations
  • Waste Management & Research The Journal for a Sustainable Circular Economy (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Engineering › Building and Construction › Anaerobic Digestion and Biogas Production
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Composting and Vermicomposting Techniques
  • Physical Sciences › Environmental Science › Waste Management and Disposal › Landfill Environmental Impact Studies
Keywords
digestate, organic fraction of municipal solid waste, digestate management, digestate storage, soil improvers, microalgae cultivation, biofuel production, bioethanol production, biogas yield optimization
MeSH terms
Anaerobiosis, Fertilizers, Refuse Disposal, Soil, Biofuels, Solid Waste

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