http://www.cnr.it/ontology/cnr/individuo/prodotto/ID284028
Effect of pH value on biohydrogen production from food waste (Contributo in atti di convegno)
- Type
- Label
- Effect of pH value on biohydrogen production from food waste (Contributo in atti di convegno) (literal)
- Anno
- 2014-01-01T00:00:00+01:00 (literal)
- Alternative label
Cappai G., De Gioannis G., Friargiu M., Massi E., Muntoni A., Polettini A., Pomi R., Spiga D. (2014)
Effect of pH value on biohydrogen production from food waste
in EURASIA 2014 Waste Management Symposium, Istanbul (TK), 28 - 30 Aprile 2014
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Cappai G., De Gioannis G., Friargiu M., Massi E., Muntoni A., Polettini A., Pomi R., Spiga D. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
- memoria su supporto USB (pp. 179-186, 8 pagine) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- University of Cagliari, DICAAR - Department of Civil and Environmental Engineering and Architecture, Cagliari; IGAG - CNR (Environmental Geology and Geoengineering Inst. of the National Research Council); Department of Civil and Environmental Engineering, University of Rome \"La Sapienza\". (literal)
- Titolo
- Effect of pH value on biohydrogen production from food waste (literal)
- Abstract
- In the present study we tried to fill some existing gaps in the knowledge of fermentative H2 production
from food waste. Fractions of municipal solid waste such as food waste (FW) and the broader mixture of
materials known as organic fraction of municipal solid waste (OFMSW, basically FW combined with
non-recoverable paper residues) may represent relatively inexpensive and suitable sources of
biodegradable organic matter for H2 production, mainly due to their high carbohydrate content and wide
availability. The main issues dealt with in the present study include: i) evaluating the influence of the
operating pH on fermentative H2 production from FW and defining the optimal pH range, ii) comparing
the H2 yield with or without external inoculum addition, iii) evaluating the effect of thermal pre-treatment of the inoculum on process kinetics and overall H2 production.
Several batch fermentation tests were carried out on FW samples, by systematically varying the operating
pH, the addition of an external inoculum and its pre-treatment.
The different pH values adopted in the batch tests exerted a remarkable influence on H2 yield, clearly
showing that adequate pH control is one of the key factors for significant H2 production to be achieved.
The best performance was observed at pH = 6.5 for all the batch tests performed. In particular, by fixing
the pH value at 6.5, using a thermal pretreated activated sludge and optimizing the F/M ratio a specific
H2 production of 120 Nl H2/kg VS was obtained. (literal)
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