Stimulation of anaerobic digestion of thickened sewage sludge by iron-rich sludge produced by the fenton method.
In batch mesophilic anaerobic digestion of a mixture of iron-rich sludge collected from Fenton treatment of molasses wastewater (MWW) and thickened sewage sludge from a municipal wastewater treatment plant, the methane content in the gas from the mixture was significantly higher than that from thickened sewage sludge only. When minerals in iron-rich sludge obtained by incineration were fed to thickened sewage sludge in semi-continuous experiments, the methane content obtained by digestion of thickened sewage sludge only increased approximately from 53% to 64%. These results suggest that iron-rich sludge can enhance methane production for thickened sewage sludge.
Lee
Hyunhee
H
Chemical Resources Laboratory, Tokyo Institute of Technology, R1-29, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
Shoda
Makoto
M
D001421:Bacteria, Anaerobic / Q000378:metabolism*; D019149:Bioreactors / Q000382:microbiology*; D018929:Cell Culture Techniques / Q000379:methods*; D006861:Hydrogen Peroxide; D007501:Iron / Q000737:chemistry* / Q000378:metabolism*; D012722:Sewage / Q000737:chemistry* / Q000382:microbiology*
C045076:Fenton's reagent; D012722:Sewage; D006861:Hydrogen Peroxide; D007501:Iron