A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effects of reactor configuration and biomass activity on the performance of upflow static media anaerobic reactors
ABSTRACT: Three upflow, static‐media anaerobic reactors (USMARs), each with clean‐bed volumes of 85 L but with different heights: diameter ratios were operated at 35°C, with C O D loadings varying from 1 to 12 g/ L · d. Height‐to‐diameter ratios investigated were 1.2, 4.1, and 14.3. The reactors were fed a synthetic substrate made from nonfat dry milk and minerals. It was hypothesized that the effect of biogas mixing on reactor performance would be greater in tall reactors than in short ones. This was found not to be the case. Based on COD removal, the tall reactor performed only slightly better than the shorter ones at loadings less than 9g/L·d. At higher COD loadings, there was no significant difference in performance. Tracer studies using lithium chloride indicated a completely mixed flow regime at COD loadings in excess of 9g/L·d. The acetogenic methanogenic activity of the VSS in all reactors varied between 0.1 and 0.2 L CH4/g VSS · d at reactor VSS concentrations higher than 1000 mg/L.
Effects of reactor configuration and biomass activity on the performance of upflow static media anaerobic reactors
ABSTRACT: Three upflow, static‐media anaerobic reactors (USMARs), each with clean‐bed volumes of 85 L but with different heights: diameter ratios were operated at 35°C, with C O D loadings varying from 1 to 12 g/ L · d. Height‐to‐diameter ratios investigated were 1.2, 4.1, and 14.3. The reactors were fed a synthetic substrate made from nonfat dry milk and minerals. It was hypothesized that the effect of biogas mixing on reactor performance would be greater in tall reactors than in short ones. This was found not to be the case. Based on COD removal, the tall reactor performed only slightly better than the shorter ones at loadings less than 9g/L·d. At higher COD loadings, there was no significant difference in performance. Tracer studies using lithium chloride indicated a completely mixed flow regime at COD loadings in excess of 9g/L·d. The acetogenic methanogenic activity of the VSS in all reactors varied between 0.1 and 0.2 L CH4/g VSS · d at reactor VSS concentrations higher than 1000 mg/L.
Effects of reactor configuration and biomass activity on the performance of upflow static media anaerobic reactors
Chiang, Chow‐Feng (author) / Dague, Richard R. (author)
Water Environment Research ; 64 ; 141-149
1992-03-01
9 pages
Article (Journal)
Electronic Resource
English
biomass , anaerobic , configuration , oxygen demand , reactor , upflow
Performance of Upflow Anaerobic Reactor Treating Municipal Sewage
| British Library Conference Proceedings | 2002
Removal of Chlorinated phenols in Upflow Anaerobic Sludge Blanket Reactors
| British Library Conference Proceedings | 1995
Anaerobic Treatment of Wastewater Containing fatty Acids in Upflow Reactors
| UB Braunschweig | 1979
| British Library Online Contents | 1995