title: Characterisation of high-rate acidogenesis processes using a titration and off-gas analysis sensor.
abstract: The characteristics of the glucose degradation by acidogenesis processes were investigated both in a long-term operating laboratory-scale continuously stirred tank reactor and in short-term experiments utilising a titration and off-gas analysis (TOGA) sensor. The results obtained from continuous-flow experiments in both reactors demonstrated that the TOGA sensor can be applied as a useful tool for the study of acidogenesis processes under steady-state and dynamic conditions. No significant effect from the culture transfer could be detected in the study with the TOGA sensor. Furthermore, the variation of gas production rate could be monitored at real time by the TOGA sensor. The experiments showed that the distribution of acidogenic products in the liquid and the gas phase was significantly influenced by the hydraulic retention time at least in the short term.
authors.affiliation: Advanced Wastewater Management Centre, The University of Queensland, St. Lucia, Brisbane 4072, Australia.
authors.forename: C
authors.initials: C
authors.lastname: Wangnai
authors.forename: R J
authors.initials: RJ
authors.lastname: Zeng
authors.forename: J
authors.initials: J
authors.lastname: Keller
mesh_terms: D001421:Bacteria, Anaerobic / Q000378:metabolism; D019149:Bioreactors; D002245:Carbon Dioxide / Q000378:metabolism; D002851:Chromatography, High Pressure Liquid; D000431:Ethanol / Q000378:metabolism; D005232:Fatty Acids, Volatile / Q000032:analysis* / Q000378:metabolism; D005410:Flame Ionization; D008401:Gas Chromatography-Mass Spectrometry; D005947:Glucose / Q000378:metabolism; D006859:Hydrogen / Q000378:metabolism; D008697:Methane / Q000378:metabolism; D013997:Time Factors; D017186:Titrimetry / Q000295:instrumentation*; D014865:Waste Disposal, Fluid / Q000295:instrumentation* / Q000379:methods
chemical_list: D005232:Fatty Acids, Volatile; D002245:Carbon Dioxide; D000431:Ethanol; D006859:Hydrogen; D005947:Glucose; D008697:Methane