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Pretreatments applied to microalgae residues to enhance anaerobic digestion
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Orientador(es)
Resumo(s)
Biomass of microalga Chlorella protothecoides, grown under autotrophic and heterotrophic
conditions and subjected to pretreatments, were energetically valorized through anaerobic
digestion process according to the substrates: autotrophic algae (A), heterotrophic algae
(H), heterotrophic algae extracted (HE), autoclave pretreated heterotrophic algae (HPA),
enzyme pretreated heterotrophic algae (HPE), ultrasound pretreated heterotrophic algae
(HPU), and inoculum (I). Despite the application of pretreatments, the highest methane
production was obtained in the algae extracted digestion with 172 mL CH4, against 153,
126 and 142 mL obtained in HPA, HPE and HPU, respectively.
The COD removal capacity was higher in the HPA sample while the TS and VS removal
reached higher values in the autotrophic alga.
Descrição
Poster apresentado em WASTES: Solutions, Treatments and Opportunities. 5th International Conference, September 4th - 6th, Almada/Caparica, Portugal
Palavras-chave
Anaerobic digestion Microalgae Chlorella protothecoides Biofuel Bioenergy