Fermentative hydrogen gas production using biosolids pellets as the inoculum source.

Bioresour Technol 2008 Feb 1;99(3):540-6. Epub 2007 Mar 1.

Hydromantis Inc., 1 James Street South, Suite 1601, Hamilton, Ont., Canada L8P 4A5.

Biosolids pellets produced from anaerobically digested municipal wastewater sludge by drying to greater than 90% total solids at 110-115 degrees C for at least 75 min, were tested for their suitability as an inoculum source for fermentative hydrogen production. The hydrogen recoveries (mg gaseous H(2) produced as COD/mg added substrate COD) for glucose-fed batch systems were equal, 20.2-21.5%, between biosolids pellets and boiled anaerobic digester sludge as inoculum sources. Hydrogen recoveries from primary sludge were 2.4% and 3.5% using biosolids pellets and boiled sludge, respectively, and only 0.2% and 0.8% for municipal wastewater. Biosolids pellets should be a practical inoculum source for fermentative hydrogen reactors, although the effectiveness will depend on the wastewater treated.

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Source
http://linkinghub.elsevier.com/retrieve/pii/S096085240700066
Publisher Site
http://dx.doi.org/10.1016/j.biortech.2007.01.004DOI Listing
February 2008
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