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Istituto sull'inquinamento atmosferico

Torna all'elenco Contributi in rivista anno 2017

Contributo in rivista

Tipo: Articolo in rivista

Titolo: A novel pilot scale multistage semidry anaerobic digestion reactor to treat food waste and cow manure

Anno di pubblicazione: 2017

Autori: F. Petracchini, F. Liotta, V. Paolini1, M. Perilli, D. Cerioni, F. Gallucci, M. Carnevale, A. Bencini

Affiliazioni autori: Institute of Atmospheric Pollution Research, National Research Council of Italy, Via Salaria km 29.300, 00015 Monterotondo, Italy 2 Social Energy Srl, Via della Tenuta del Cavaliere, 1, 00012 Guidonia, Italy 3 Unita` di Ricerca per l'Ingegneria Agraria, Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Via della Pascolare 16, 00015 Monterotondo, Italy

Autori CNR:

  • VALERIO PAOLINI
  • MATTIA PERILLI
  • FRANCESCO PETRACCHINI

Lingua: inglese

Abstract: An innovative two-stage AD system to treat food waste with cow manure is presented to address the problem of ammonia inhibition and improve the stability of methanogenic reactor. The liquid digestate recirculation in the first phase was adopted to enhance the hydrolysis rate and the solubilization of organic matter. A stable long-term run (80 days) was found. The reactor configuration and the digestate post-treatment with natural zeolite led to a low ammonia concentration in reactor outlet. The biogas production in the methanogenic reactor was very stable and high: The specific biogas production in the second phase was equal to 0.68-0.92 Nm3/kgTVSadded and the average methane concentration was equal to 85%. Good performances were also found for the first-stage digestate, with 75% soluble COD removal efficiency. The high reactor performances were related to two-stage configuration, no ammonia and VFA inhibition.

Lingua abstract: inglese

Rivista:

International journal of environmental science and technology Iranian Society of Environmentalists, Center for Environment and Energy Research and Studies
Paese di pubblicazione: Iran
Lingua: inglese
ISSN: 1735-2630

DOI: 10.1007/s13762-017-1572-z

Referee: Sė: Internazionale

Stato della pubblicazione: Published version

Parole chiave:

  • Two-stage; Ammonia removal; Mesophilic methanogenesis; VFA

Strutture CNR:

 
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