Title
LCA-Assisted Conception of a Digestate Recovery by Micro-Algae Production
Conference Dates
June 5 – 10, 2022
Abstract
The digestate produced by anaerobic digestion process is a source of nutrients (N, P, K) and organic matter (C content), generally used as spreading in culture to ideally substitute for the use of mineral fertilizers. This type of digestate recovery presents some weaknesses as for example the poor effective substitution due to the relative low content of bio-available nutrients. Thenceforth, a higher benefit for the recovery of digestate could be thought to increase the effective use of nutrients. Instead of direct spreading, a higher quantity of the digestate and the CO2 contained in the biogas could be used in a micro-algae culture. To this end, the BIOMSA system is based on the coupling of anaerobic digestion and micro-algae culture (Figure 1).
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Recommended Citation
Jean-Romain Bautista Angeli, Marilys Pradel, Fabrice Beline, and Lynda Aissani, "LCA-Assisted Conception of a Digestate Recovery by Micro-Algae Production" in "WasteLCA_3: Life Cycle Sustainability Assessment For Waste Management And Resource Optimization", Umberto Arena, University of Campania “Luigi Vanvitelli”, Italy; Thomas Astrup, University of Denmark, Denmark Eds, ECI Symposium Series, (2022). https://dc.engconfintl.org/lca_waste_3/69