Cerca nel sito per parola chiave

pubblicazioni - Poster

Biochar-based Electrodes for BioelectrochemicalSystems

pubblicazioni - Poster

Biochar-based Electrodes for BioelectrochemicalSystems

L’applicazione su larga scala dei sistemi bioelettrochimici (BES) necessita un equilibrio tra efficienza dei processi e costi. Questo studio affronta lo sviluppo di materiali basati su biochar, che possno essere una soluzione a basso costo e compatibile con l’ambiente per fabbricare elettrodi su larga scala.

Real scale application of bio-electrochemical systems (BES) has been facing the need to find an optimal balance between the processes efficiencies and the costs. Many researches are currently addressing the development of low-cost and environmentally-compatible materials to fabricate electrodes for large scale applications. To date, the most competitive materials are carbon based electrodes derived from the PEM fuel cells technologies, due to their strong biocompatibility and inert properties at room temperature. However, because of high economic and environmental costs, their use is critical for large-scale environmental applications, such as bioremediation and wastewater treatment. In this panorama, an emerging class of biogenic materials for potential application in BES has been recently proposed, based on charcoal produced by pyrolysis of specific biomasses.

A new types of performing “electroactive” microporous charcoals (e-Char) derived from Arundo Donax L. is studied in this work, in comparison with: i) another pyrolysed biomass, ii) commercial activated carbon and iii) pale carbon cloth.The results indicated that Arundo Donax L. e-Char is better performing as anode while activated carbon as cathode. Since biochar is widely recognized to act as agricultural soil fertility promoter, the recovered nutrients-enriched electrodes might be re-used as soil conditioner, in a circular economy perspective.

Progetti

Commenti