Next Article in Journal
Single-Use Plastic Bans: Exploring Stakeholder Perspectives on Best Practices for Reducing Plastic Pollution
Previous Article in Journal
The Diatomic Diversity of Two Mediterranean High-Elevation Lakes in the Sibillini Mountains National Park (Central Italy)
Previous Article in Special Issue
An Investigation of the Potential Adoption of Anaerobic Digestion for Energy Production in Irish Farms
Review

High-Solid Anaerobic Digestion: Reviewing Strategies for Increasing Reactor Performance

1
Department of Applied Chemistry and Physics, Campus de Vegazana, School of Industrial Engineering, University of León, 24071 León, Spain
2
Chemical and Environmental Bioprocess Engineering Group, Natural Resources Institute (IRENA), University of León, Av. de Portugal 41, 24071 León, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Manuel Soto
Received: 27 May 2021 / Revised: 7 August 2021 / Accepted: 11 August 2021 / Published: 14 August 2021
(This article belongs to the Special Issue Small-Scale Anaerobic Digestion for Biogas Production)
High-solid and solid-state anaerobic digestion are technologies capable of achieving high reactor productivity. The high organic load admissible for this type of configuration makes these technologies an ideal ally in the conversion of waste into bioenergy. However, there are still several factors associated with these technologies that result in low performance. The economic model based on a linear approach is unsustainable, and changes leading to the development of a low-carbon model with a high degree of circularity are necessary. Digestion technology may represent a key driver leading these changes but it is undeniable that the profitability of these plants needs to be increased. In the present review, the digestion process under high-solid-content configurations is analyzed and the different strategies for increasing reactor productivity that have been studied in recent years are described. Percolating reactor configurations and the use of low-cost adsorbents, nanoparticles and micro-aeration seem the most suitable approaches to increase volumetric production and reduce initial capital investment costs. View Full-Text
Keywords: solid-phase; commercial technologies; biogas enhancement; conductive materials; nanoparticles solid-phase; commercial technologies; biogas enhancement; conductive materials; nanoparticles
Show Figures

Figure 1

MDPI and ACS Style

Ellacuriaga, M.; Cascallana, J.G.; González, R.; Gómez, X. High-Solid Anaerobic Digestion: Reviewing Strategies for Increasing Reactor Performance. Environments 2021, 8, 80. https://0-doi-org.brum.beds.ac.uk/10.3390/environments8080080

AMA Style

Ellacuriaga M, Cascallana JG, González R, Gómez X. High-Solid Anaerobic Digestion: Reviewing Strategies for Increasing Reactor Performance. Environments. 2021; 8(8):80. https://0-doi-org.brum.beds.ac.uk/10.3390/environments8080080

Chicago/Turabian Style

Ellacuriaga, Marcos, José G. Cascallana, Rubén González, and Xiomar Gómez. 2021. "High-Solid Anaerobic Digestion: Reviewing Strategies for Increasing Reactor Performance" Environments 8, no. 8: 80. https://0-doi-org.brum.beds.ac.uk/10.3390/environments8080080

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop