Three different experimental sets of runs involving batch fermentation assays were performed to evaluate the influence of the experimental conditions on biological hydrogen production from the source-separated organic fraction of municipal solid waste collected through a door-to-door system. The fermentation process was operated with and without automatic pH control, at a pH of 5.5 and 6.5, food-to-microorganism ratios of 1/3 and 1/1 (wet weight basis) and with different working volumes (0.5 and 3 L). The experimental results showed that the pH control strategy and the reactor volume did not affect the final hydrogen production yield but played an important role in determining the time evolution of the process. Indeed, although the different experimental conditions tested yielded comparable hydrogen productions (with maximum average values ranging from 68.5 to 88.5 NLH 2 (kgTVS OF ) −1 ), the automatic pH control strategy improved the process from the kinetic viewpoint resulting in a t 95 reduction from an average of 34.9 h without automatic pH control to an average of 19.5 h. © The Author(s) 2019.

Influence of the pH control strategy and reactor volume on batch fermentative hydrogen production from the organic fraction of municipal solid waste / Baldi, Francesco; Iannelli, Renato; Pecorini, Isabella; Polettini, Alessandra; Pomi, Raffaella; Rossi, Andreina. - In: WASTE MANAGEMENT & RESEARCH. - ISSN 0734-242X. - 5:37(2019), pp. 478-485. [10.1177/0734242X19826371]

Influence of the pH control strategy and reactor volume on batch fermentative hydrogen production from the organic fraction of municipal solid waste

Polettini, Alessandra;Pomi, Raffaella;Rossi, Andreina
2019

Abstract

Three different experimental sets of runs involving batch fermentation assays were performed to evaluate the influence of the experimental conditions on biological hydrogen production from the source-separated organic fraction of municipal solid waste collected through a door-to-door system. The fermentation process was operated with and without automatic pH control, at a pH of 5.5 and 6.5, food-to-microorganism ratios of 1/3 and 1/1 (wet weight basis) and with different working volumes (0.5 and 3 L). The experimental results showed that the pH control strategy and the reactor volume did not affect the final hydrogen production yield but played an important role in determining the time evolution of the process. Indeed, although the different experimental conditions tested yielded comparable hydrogen productions (with maximum average values ranging from 68.5 to 88.5 NLH 2 (kgTVS OF ) −1 ), the automatic pH control strategy improved the process from the kinetic viewpoint resulting in a t 95 reduction from an average of 34.9 h without automatic pH control to an average of 19.5 h. © The Author(s) 2019.
2019
batch fermentation assays; biochemical hydrogen production; food-to-microorganism ratio; organic fraction of municipal solid waste; pH
01 Pubblicazione su rivista::01a Articolo in rivista
Influence of the pH control strategy and reactor volume on batch fermentative hydrogen production from the organic fraction of municipal solid waste / Baldi, Francesco; Iannelli, Renato; Pecorini, Isabella; Polettini, Alessandra; Pomi, Raffaella; Rossi, Andreina. - In: WASTE MANAGEMENT & RESEARCH. - ISSN 0734-242X. - 5:37(2019), pp. 478-485. [10.1177/0734242X19826371]
File allegati a questo prodotto
File Dimensione Formato  
Baldi_Influence-of-the-2019.pdf

accesso aperto

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Creative commons
Dimensione 344.47 kB
Formato Adobe PDF
344.47 kB Adobe PDF

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1263127
Citazioni
  • ???jsp.display-item.citation.pmc??? 1
  • Scopus 22
  • ???jsp.display-item.citation.isi??? 19
social impact