Methanogenic activity and performance of UASB, DSFF and USFF reactors

• Published in: Water Science & Technology Vol. 34; no. 5-6; pp. 483 - 487
• Main Authors: Jawed, Mohammad, Tare, Vinod
• Format: Journal Article Conference Proceeding
• Language: English
• Published: London Elsevier Ltd 1996; IWA Publishing
• Subjects: Anaerobic Process; Aquifers; Biogas; Methane; Methanogenic Activity; Methanogenic bacteria; Reactors; Scale models; Stationary Fixed Film; Upflow Anaerobic Sludge Blanket; Wastewater Treatment; Biogas; Upflow Anaerobic Sludge Blanket; Anaerobic Process; Stationary Fixed Film; Methanogenic Activity; Wastewater Treatment
• ISBN: 0080430856; 9780080430850
• ISSN: 0273-1223; 1996-9732
• DOI: 10.1016/0273-1223(96)00682-8

This paper presents correlation of methanogenic activity with performance of bench scale models of UASB, DSFF and USFF reactors at varying OLRs while maintaining EBHRT in the range of 0.80–1.10 d. At lower OLR, performance of the reactors appears to be similar. However, at higher OLR, the performance of DSFF and USFF reactors is fairly steady whereas UASB reactor shows poor performance in terms of methane production. This is in conformity with methanogenic activity test results. The results of AMA and TMA tests also reveal that at higher OLR, acetoclastic methanogens population decreases considerably in UASB reactor and a large fraction of methane is produced due to the activity of non-acetoclastic methanogens.