Hydrogen production from wastewater sludge using a clostridium strain
Journal
Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
Journal Volume
38
Journal Issue
9
Pages
1867-1875
Date Issued
2003
Author(s)
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.
Subjects
Anaerobic fermentation
Clostridium
Hydrogen
Methane
Pre-treatment
Other Subjects
Bacteria; Fermentation; Hydrogen; Methane; Wastewater sludge; Wastewater treatment; hydrogen; methane; organic matter; anaerobic fermentation; article; bacterial strain; Clostridium; Methanobacterium; nonhuman; sludge; waste water; Bioelectric Energy Sources; Clostridium; Fermentation; Hydrogen; Methane; Sewage; Waste Disposal, Fluid; Bacteria (microorganisms); Clostridium; Methanobacterium; Posibacteria
Type
journal article