Aim of the paper was to assess the feasibility of producing hydrogen as a biofuel by photofermentation of fermented water lettuce (Pistia stratiotes L.) waste biomass, after a nitrogen-stripping treatment. low-ammonium sensitivity) of Rhodopseudomonas palustris were used for producing hydrogen. The stripping procedure was highly effective for ammonium removal, with an acceptable selectivity (91 % of ammonium was removed; only 14 % of total organic acids were lost). Both strains were able to produce hydrogen only in the nitrogen-stripped substrate. The natural strain R.palustris 42OL showed a higher Biochemical Hydrogen Potential (1224 mL L-1 vs 720 mL L-1; 50.0 mol m-3 vs 29.4 mol m-3), but at a lower rate (5.6 mL L-1 h-1 vs 7.3 mL L-1 h-1; 0.23 mol m-3 h-1 vs 0.29 mol m-3 h-1) than strain CGA676. Water lettuce waste biomass can be used for biofuel production, after hydrolization, fermentation and nitrogen stripping. The investigation on novel, low cost and sustainable biomasses as feedstocks for biofuel production is a priority. Aquatic plants do not compete for arable land. Moreover, water lettuce is a floating and nvasive weed, thus its biomass must be harvested when detrimental, and can now be biotransformed in clean hydrogen.

Biotransformation of water lettuce (Pistia stratiotes) to biohydrogen by Rhodopseudomonas palustris / Corneli, Elisa; Adessi, Alessandra; Olguín, Eugenia J; Ragaglini, Giorgio; García-lópez, Daniel A; De Philippis, Roberto. - In: JOURNAL OF APPLIED MICROBIOLOGY. - ISSN 1364-5072. - STAMPA. - 123:(2017), pp. 1438-1446. [10.1111/jam.13599]

Biotransformation of water lettuce (Pistia stratiotes) to biohydrogen by Rhodopseudomonas palustris

ADESSI, ALESSANDRA
;
DE PHILIPPIS, ROBERTO
2017

Abstract

Aim of the paper was to assess the feasibility of producing hydrogen as a biofuel by photofermentation of fermented water lettuce (Pistia stratiotes L.) waste biomass, after a nitrogen-stripping treatment. low-ammonium sensitivity) of Rhodopseudomonas palustris were used for producing hydrogen. The stripping procedure was highly effective for ammonium removal, with an acceptable selectivity (91 % of ammonium was removed; only 14 % of total organic acids were lost). Both strains were able to produce hydrogen only in the nitrogen-stripped substrate. The natural strain R.palustris 42OL showed a higher Biochemical Hydrogen Potential (1224 mL L-1 vs 720 mL L-1; 50.0 mol m-3 vs 29.4 mol m-3), but at a lower rate (5.6 mL L-1 h-1 vs 7.3 mL L-1 h-1; 0.23 mol m-3 h-1 vs 0.29 mol m-3 h-1) than strain CGA676. Water lettuce waste biomass can be used for biofuel production, after hydrolization, fermentation and nitrogen stripping. The investigation on novel, low cost and sustainable biomasses as feedstocks for biofuel production is a priority. Aquatic plants do not compete for arable land. Moreover, water lettuce is a floating and nvasive weed, thus its biomass must be harvested when detrimental, and can now be biotransformed in clean hydrogen.
2017
123
1438
1446
Goal 7: Affordable and clean energy
Corneli, Elisa; Adessi, Alessandra; Olguín, Eugenia J; Ragaglini, Giorgio; García-lópez, Daniel A; De Philippis, Roberto
File in questo prodotto:
File Dimensione Formato  
Corneli et al. 2017.pdf

Accesso chiuso

Tipologia: Pdf editoriale (Version of record)
Licenza: Creative commons
Dimensione 217.6 kB
Formato Adobe PDF
217.6 kB Adobe PDF   Richiedi una copia

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

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1097278
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 12
  • ???jsp.display-item.citation.isi??? 11
social impact