Algae, a biological purification tool for biogas upgrade: a review

Autor: Ugochi Nneka Kemka, Toochukwu Ekwutosi Ogbulie, Kanayo Oguzie, Christogonus Oudney Akalezi, Emeka Emmanuel Oguzie, William Asamoah, Oluchi Rose Colette Nlemolisa
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: EQA, Vol 64, Pp 33-47 (2024)
Druh dokumentu: article
ISSN: 2039-9898
2281-4485
DOI: 10.6092/issn.2281-4485/19915
Popis: One primary application of algae is in the production of biodiesel; however, they can also be employed as a means of removing carbon dioxide from biogas. Algae have recently attracted a lot of attention due to these advantages. Reducing carbon dioxide and possibly hydrogen sulfide concentrations improve biogas quality significantly. Because biogas is created as a mixture of methane gas and a significant amount of carbon dioxide, it needs to be cleaned (scrubbed) to create usable, ultra-pure biomethane. Algae offer a more environmentally friendly way to extract carbon dioxide from biogas and utilize it for photosynthesis whilst yielding itself for production of biodiesel. Algal culture systems for upgrading biogas present a viable substitute to traditional physical and/or chemical upgrading methods, as they are safer, more affordable, and less harmful to the environment hence contributing to a more sustainable circular economy. To completely explore the enormous potential of growing algae to capture carbon dioxide, more study is necessary. This review's objective is to present fact-based knowledge regarding algae's capacity to absorb carbon dioxide from biogas.
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