Biofertilizer recovery from organic solid wastes via hydrothermal liquefaction
Open accessAbstract
Hydrothermal liquefaction (HTL) has emerged as a viable pathway for processing wet organic solid wastes (OSW) to yield biocrude oil which could be upgraded to transportation fuels and specialty chemicals. The HTL process results in two byproducts laden with high levels of carbon, nitrogen, and phosphorous. Recovery of phosphates in the byproducts as struvite and ammoniacal-nitrogen (NH 4-N) as ammonium sulfate is proposed here as a promising pathway to utilize the HTL byproducts. A case study of this pathway using algal biomass as a model OSW yielded 8.2 g struvite/100 g OSW and 10.7 g ammonium sulfate/100 g OSW. Heavy metal levels in both struvite and ammonium sulfate crystals were below EPA regulations for land application. This biofertilizer recovery pathway could render OSW processing by HTL a greener alternative to anaerobic digestion, offering feedstock versatility, substantially smaller footprint, and a higher degree of OSW valorization.
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From 2018 to 2020, the number of publications in Bioresource Technology decreased until reaching three publications, and in 2021, five papers were published.
“From 2018 to 2020, the number decreased until reaching three publications, and, in 2021, five papers were published [39, 68–71].”
From Research Progress, Trends, and Future Prospects on Hydrothermal Liquefaction of Algae for Biocrude Production: A Bibliometric Analysis (2024) · cites this paper as [70]
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Bassoli, S. C., da Fonseca, Y. A., Wandurraga, H. J. L., Baeta, B. E. L., & de Souza Amaral, M. (2024) · Biomass Conversion and Biorefinery · doi:10.1007/s13399-023-03905-7 · Cited by 25 · see citing works
- Authors
- Munasinghe-Arachchige, S. P., Abeysiriwardana-Arachchige, I. S. A., Delanka-Pedige, H. M. K., & Nirmalakhandan, N.
- Affiliations
- New Mexico State University (US)
- Corresponding author
- Nirmalakhandan, N.
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2021-10
- Volume
- 338
- Pages
- 125497
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W3181205395
- Cited by
- 12
- References
- 23
- Citations by year
- 2026: 1 · 2025: 4 · 2024: 4 · 2023: 1 · 2022: 1 · 2021: 1
- FWCI
- 1.06
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- www.elsevier.com/tdm/userlicense/1.0/ (tdm)
- www.elsevier.com/legal/tdmrep-license (tdm)
- www.elsevier.com/open-access/userlicense/1.0/ (am, 647 d)
- doi.org/10.15223/policy-017 (stm-asf)
- doi.org/10.15223/policy-037 (stm-asf)
- doi.org/10.15223/policy-012 (stm-asf)
- doi.org/10.15223/policy-029 (stm-asf)
- doi.org/10.15223/policy-004 (stm-asf)
- Locations
- Bioresource Technology (acceptedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Environmental Science › Waste Management and Disposal › Phosphorus and nutrient management
- Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
- Physical Sciences › Environmental Science › Waste Management and Disposal › Wastewater Treatment and Reuse
- Keywords
- hydrothermal liquefaction, organic solid waste, struvite, ammonium sulfate, algal biomass, biocrude, heavy metal contamination, nutrient recovery, waste valorization
- MeSH terms
- Struvite, Nitrogen, Phosphorus, Temperature, Biomass, Biofuels, Solid Waste
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