|Title:||Hydrogen production from wastewater sludge using a clostridium strain||Authors:||Wang C.C.
|Keywords:||Anaerobic fermentation;Clostridium;Hydrogen;Methane;Pre-treatment||Issue Date:||2003||Journal Volume:||38||Journal Issue:||9||Start page/Pages:||1867-1875||Source:||Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering||Abstract:||
Limited data in literature revealed a relatively low hydrogen yield from wastewater sludge, ca. 0.16mg/g-dried solids, using anaerobic fermentation. We demonstrated in this work a much higher hydrogen yield, around 1.1 mg-H 2/g-dried solids using a clostridium strain isolated from the sludge sample. The formed hydrogen would be consumed after passing the peak value at around 30-36 h of fermentation. We examined the effects of employing five different pre-treatments on substrate sludge, but noted no appreciable enhancement in hydrogen yield as commonly expected for methane production. Since a vast amount of organic matters had been released to water after hydrogen fermentation, we externally dosed methanogenic bacteria to the fermented liquor to produce methane. The fermented liquor could produce more methane than the non-fermented sample, indicating that the dosed methanogenic bacteria readily utilized the organic matters derived from the fermentation test.
|Appears in Collections:||化學工程學系|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.