Journal of Environmental Engineering · 1997 · 99 citations · 15 references
EngineeringBiotechnologyEnvironmental EngineeringBioprocess EngineeringMicrobial MetabolismWastewater TreatmentAnaerobic MetabolismBiological Treatment ProcessesBioprocess KineticsNutrient RemovalPhosphorus ManagementPhosphorus RemovalAnaerobic Phosphorus ReleaseBiological Phosphorus RemovalConversion RatesPhosphorus Removal In Sequencing Batch ReactorsPhosphorus Removal KineticsProcess Temperature EffectsSequencing Batch Reactor Nutrient RemovalTemperature Effects
Phosphorus-removing sludge was enriched in an anaerobic-aerobic, acetate-fed, sequencing batch reactor at 20°C. Conversion of relevant compounds for biological phosphorus removal was studied at 5, 10, 20, and 30°C in separate batch tests. The stoichiometry of the anaerobic processes was insensitive to temperature changes. Some effect on aerobic stoichiometry was observed. In contrast, temperature had a strong influence on the kinetics of the processes under anaerobic as well as aerobic conditions. The anaerobic phosphorus-release (or acetate-uptake) rate showed a maximum at 20°C. However, a continuous increase was observed in the interval 5–30°C for the conversion rates under aerobic conditions. Based on these experiments, temperature coefficients for the different reactions were calculated. An overall anaerobic and aerobic temperature coefficient θ was found to be 1.078 (valid in the range 5°C <T< 20°C) and 1.057 (5°C <T< 30°C), respectively.
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Michael Wagner, Robert Erhart, Werner Manz et al. · Applied and Environmental Microbiology · 1994 · 543 citations · Full text