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EUBCE 2023 - David CHIARAMONTI - Waste Treatment: the AD/Slow Pyrolysis Integrated Route for Biomethane, Ammonium Sulphate and Biochar to Store&use Carbon in EU MED Soils

Waste Treatment: the AD/Slow Pyrolysis Integrated Route for Biomethane, Ammonium Sulphate and Biochar to Store&use Carbon in EU MED Soils

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Sustainable biomass resources with improved soils

Waste Treatment: the AD/Slow Pyrolysis Integrated Route for Biomethane, Ammonium Sulphate and Biochar to Store&use Carbon in EU MED Soils

Short Introductive summary

The integration of Anaerobic Digestion (AD) of biowastes, Slow Pyrolysis (SP) of digestates and CO2 liquefaction of biowaste enables to achieve full carbon recovery, producing Biomethane, CO2, storing ~70% of the remaining carbon in a stable carbon-rich soil form, and using it as a soil amendment. This approach represents a new circular solution fully integrated in the existing waste treatment, which is accounts for more than 1900 plants in Italy only. RE-CORD studied a full industrial scale AD/SP integrated system processing 40,000 t/y of biowaste to produce biomethane, liquid CO2, biochar and ammonium sulphate in Tuscany, on a real industrial initiative developed by waste treatment company in Tuscany. This work focuses on the design and experimental validation of the plant thermochemical treatment section, where the biowaste digestate is processed by SP to produce biochar and recover ammonium sulphate, as describe in the following scheme.

Presenter

Moderator portrait

David CHIARAMONTI

Politecnico di Torino, DENERG Dpt.

Presenter's biography

David Chiaramonti teaches Bioenergy Conversion Technologies at the University of Florence, where he carries out research on thermochemical biomass conversion at CREAR. He chairs the Renewable Energy COnsortium for R&D of the University of Florence (RE-CORD)

Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited


Co-authors:

D. Chiaramonti, Politecnico di Torino, Torino, ITALY
A Salimbeni, RE-CORD, Scarperia e San Piero (Florence), ITALY
M Di Bianca, RE-CORD, Scarperia e San Piero (Florence), ITALY
AM Rizzo, RE-CORD, Scarperia e San Piero (Florence), ITALY

Session reference: AP.1.2