EFFECT OF METHANOGENIC INHIBITORS, INOCULA TYPE, AND TEMPERATURE ON BIOHYDROGEN PRODUCTION FROM FOOD COMPONENTS

• Type: Article in International Scientific Journal
• Date: 2008

Authors

Anthony Steven Danko (Author) Other; Pinheiro, F (Author) Other; Abreu, AA (Author) Other; Alves, MM (Author) Other

Journal

Title: Environmental Engineering and Management Journal

Vol. 7

Pages: 531-536

ISSN: 1582-9596

Publisher: Institutul Politehnic din Iasi

Indexing

ISI Web of Knowledge - 6 Citations

Scopus - 7 Citations

Other information

Authenticus ID: P-003-WF9

Abstract (EN): Dark fermentation hydrogen production from a mixture of food components using two different methods of methanogenic inhibition (autoclaving and BES) and three different temperatures (37, 60, and 70 degrees C) was examined in batch assays for two different mixed anaerobic cultures - one suspended sludge (S) obtained from an anaerobic digester and one granular sludge (G) obtained from a brewery wastewater treatment plant. In general, BES-inhibition of sludge was more robust when compared against heat-treated inoculum. Also, hydrogen, VFA, and sCOD production were affected by increases in temperature although the effects were less severe for G than for S. In addition, differences in individual VFAs were observed between the two inocula. S produced more acetate as a percentage of VFA(TOTAL) compared to G. Conversely, G produced more butyrate compared to S. Differences in the microbial communities were likely responsible for the diverse behaviour of the two inocula.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6