Anaerobic granulation with methanol-cultured seed sludge.
A new biotechnology on sludge granulation in upflow anaerobic sludge blanket (UASB) system was developed in this study. Methanol-cultured sludge for UASB inoculation demonstrated a beneficial effect on the granulation process. This new biotechnology accelerated the formation of embryonic granules in a laboratory-scale UASB reactor, and the granulation process reached its post-maturation stage in about 15-20 days ahead of the control reactor. There were no significant negative effects on COD removal and gas production due to this methanogen-enriched seed sludge. Methanol-cultured seed sludge for UASB inoculation could be an effective method to reduce the time required for UASB system start-up.
Xu
Hai-Lou
HL
Environmental Engineering Research Centre, School of Civil and Structural Engineering, Nanyang Technological University, Singapore. chlxu@ntu.edu.sg
Tay
Joo-Hwa
JH
D001421:Bacteria, Anaerobic / Q000502:physiology; D001673:Biodegradation, Environmental; D000432:Methanol / Q000378:metabolism*; D010100:Oxygen / Q000378:metabolism; D010316:Particle Size; D012722:Sewage / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods*
D012722:Sewage; D010100:Oxygen; D000432:Methanol