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algae:biogas_biofuels

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algae:biogas_biofuels [2026-08-05 22:06] – [GHG Calculations — BioGrace and Default Values] robertalgae:biogas_biofuels [2026-09-13 17:30] (current) – Mostly rename EURlex robert
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 AD digestate may also represent an efficient and low-cost nutrient source for algal cultivation for certain algal products. When biogas is used in CHP, the exhaust can be used as the CO<sub>2</sub> source for algal cultivation. Finally, in these cases there is often a supply of heat (from cooling exhaust or from cooling of the biogas-operated engine) that may be used to heat (or even to cool - via absorption chillers) the algal cultivation media. AD digestate may also represent an efficient and low-cost nutrient source for algal cultivation for certain algal products. When biogas is used in CHP, the exhaust can be used as the CO<sub>2</sub> source for algal cultivation. Finally, in these cases there is often a supply of heat (from cooling exhaust or from cooling of the biogas-operated engine) that may be used to heat (or even to cool - via absorption chillers) the algal cultivation media.
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 +This chapter is focused mainly on use of algae as bioguels and biogas substrate. Regulatory aspects of digestate bioremediation and other topics are covered in the chapter [[algae:waste_wastewater_nutrient_recovery|Waste, wastewater and nutrient recovery]].
  
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 ==== CO₂ Capture and Storage ==== ==== CO₂ Capture and Storage ====
  
-Directive 2009/31/EC of the European Parliament and of the Council of 23 April 2009 on the geological storage of carbon dioxide, OJ L 140, 5.6.2009, p. 114. [[https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A02009L0031-20181224|EUR-Lex]]+Directive 2009/31/EC of the European Parliament and of the Council of 23 April 2009 on the geological storage of carbon dioxide, OJ L 140, 5.6.2009, p. 114. [[https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A02009L0031-20181224|EURlex]]
  
 __Relevance to algae:__ Algae are studied as a biological carbon capture mechanism, particularly in the context of CO₂ utilisation in algae cultivation. CO₂ from industrial flue gases is increasingly used as a nutrient input for photosynthetic microalgae, and the resulting biomass sequesters carbon in organic form. This is not "geological storage" for the purposes of the CCS Directive (which governs capture and geological injection of CO₂), but it is increasingly relevant in the context of the EU Carbon Removal Certification Framework (see [[algae:greenhouse_gases_climate|Greenhouse Gases and Climate]]). __Relevance to algae:__ Algae are studied as a biological carbon capture mechanism, particularly in the context of CO₂ utilisation in algae cultivation. CO₂ from industrial flue gases is increasingly used as a nutrient input for photosynthetic microalgae, and the resulting biomass sequesters carbon in organic form. This is not "geological storage" for the purposes of the CCS Directive (which governs capture and geological injection of CO₂), but it is increasingly relevant in the context of the EU Carbon Removal Certification Framework (see [[algae:greenhouse_gases_climate|Greenhouse Gases and Climate]]).
algae/biogas_biofuels.1785967563.txt.gz · Last modified: by robert