Treatment of sewage sludge

Hydrothermal carbonization (HTC) is a thermochemical technique for the conversion of wet biomass into a water-soluble organic fraction, gas and a solid porous product, known as hydrochar. Different materials may be used as raw source for the process, including energy crops, forestry residues and organic fraction of municipal solid waste. Moreover, HTC may be designed as a promising alternative for the management of sewage sludge.

Main activities on this topic: -optimization of HTC process of sewage sludge from urban wastewater treatment by using DoE (Design of Experiment) methodology -use of hydrochar as filler in composite materials -activation of hydrochar for producing sorbent materials -application of hydrochar as soil amendment -Phosphorus removal from hydrochar

Activate carbon from hydrochar
hydrochar

Research group
Sandra Vitolo, Monica Puccini, Andrea Luca Tasca

External collaborations:
Acea, NEXT Genomics, Ergo, Terrelogiche, P.H., INGELIA ITALIA, Università di Firenze, Università di Siena
https://www.sludge4puntozero.it/

Main publications:

Puccini, M., Stefanelli, E., Tasca, A.L., Vitolo, S., Pollutant removal from gaseous and aqueous phases using hydrochar-based activated carbon (2018), Chemical Engineering Transactions, 67: 637-642

Tasca, A.L., Puccini, M., Gori, R., Corsi, I., Raspolli Galletti, A.M., Vitolo, S., Hydrothermal carbonization of sewage sludge: A critical analysis of process severity, hydrochar properties and environmental implications (2019), Waste Management, 93:1-13

Puccini, M., Tasca, A.L., Mannarino, G., Raspolli Galletti, A.M., Vitolo, S., Gori, R., Hydrothermal Carbonization of Sewage Sludge: Process Optimization by Response Surface Methodology (2019), Conference: 3rd IWA Resource Recovery Conference, Venice


Funding:

Progetto POR FESR Toscana 2014-2020 finanziato dalla Regione Toscana – Bandi RS 2017 – Titolo: “Economia circolare per il trattamento e la trasformazione dei fanghi biologici in biofertilizzanti – SLUDGE 4.0”.