Click on “Download PDF” for the PDF version or on the title for the HTML version.
If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options.
Enhancement of Methane Production by Using Vermicompost as Additive
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: 2007 ASAE Annual Meeting 076005.(doi:10.13031/2013.23289)
Authors: Bailiang Zhang, Shiguan Yang, ,
Keywords: vermicompost; anaerobic fermentation; methane production; additive
The possibility of vermicompost enhancing methane production as additive was evaluated by anaerobic batch digestion experiments of synthetic wastewater. The effects of different vermicompost concentrations, on the base of TS, 10%, 5%, 1% of the wastewater mass respectively, on the methane production and digestion process were investigated at the constant amount of the wastewater and the inoculated sludge. Each experiment was successively conducted twice under mesophilic conditions. The results show that vermicompost could increase the methane production by 25.2% at most relative to the control by enhancing the specific methanogenic activity of anaerobic sludge, it also could increase the buffering ability of anaerobic liquor for pH in its initial adding period as well. It can be concluded that vermicomposts could be used as additives for anaerobic fermentation.(Download PDF) (Export to EndNotes)