Lab-scale autothermal thermophilic aerobic digestion can maintain and remove nitrogen by controlling shear stress and oxygen supply system

2021 ◽  
Author(s):  
Min Zhang ◽  
Yukihiro Tashiro ◽  
Yuya Asakura ◽  
Natsumi Ishida ◽  
Kota Watanabe ◽  
...  
Keyword(s):  
Shear Stress ◽  
Oxygen Supply ◽  
Supply System ◽  
Aerobic Digestion ◽  
Thermophilic Aerobic Digestion ◽  
Autothermal Thermophilic Aerobic Digestion

scholarly journals Impact on degradation of antibiotics from poultry litter using Autothermal Thermophilic Aerobic Digestion (ATAD)

2021 ◽  
Vol 28 (1) ◽  
pp. 988-992
Author(s):  
Arivalagan Pugazhendhi ◽  
Sridevi Dhanarani Theivaraj ◽  
Gowri Manogari Boovaragamoorthy ◽  
Veerasamy Veeramani ◽  
Kathirvel Brindhadevi ◽  
...  
Keyword(s):  
Poultry Litter ◽  
Aerobic Digestion ◽  
Thermophilic Aerobic Digestion ◽  
Autothermal Thermophilic Aerobic Digestion

Efficiency of Autothermal Thermophilic Aerobic Digestion Under Two Different Oxygen Flow Rates

2009 ◽  
Vol 2009 (3) ◽  
pp. 397-408
Author(s):  
Sebnem Koyunluoglu Aynur ◽  
Sonali Dohale ◽  
Muriel Dumit ◽  
Rumana Riffat ◽  
Mohammad Abu-Orf ◽  
...  
Keyword(s):  
Oxygen Flow ◽  
Aerobic Digestion ◽  
Flow Rates ◽  
Thermophilic Aerobic Digestion ◽  
Autothermal Thermophilic Aerobic Digestion

Kinetics of autothermal thermophilic aerobic digestion – application and extension of Activated Sludge Model No 1 at thermophilic temperatures

2007 ◽  
Vol 56 (9) ◽  
pp. 137-145 ◽  
Author(s):  
R. Kovács ◽  
P. Miháltz ◽  
Zs. Csikor
Keyword(s):  
Mathematical Model ◽  
Activated Sludge ◽  
Temperature Dependence ◽  
Decay Rates ◽  
Experimental Results ◽  
Aerobic Digestion ◽  
Activated Sludge Model ◽  
Thermophilic Aerobic Digestion ◽  
Autothermal Thermophilic Aerobic Digestion ◽  
Kinetics Of

The application of an ASM1-based mathematical model for the modeling of autothermal thermophilic aerobic digestion is demonstrated. Based on former experimental results the original ASM1 was extended by the activation of facultative thermophiles from the feed sludge and a new component, the thermophilic biomass was introduced. The resulting model was calibrated in the temperature range of 20–60 °C. The temperature dependence of the growth and decay rates in the model is given in terms of the slightly modified Arrhenius and Topiwala-Sinclair equations. The capabilities of the calibrated model in realistic ATAD scenarios are demonstrated with a focus on autothermal properties of ATAD systems at different conditions.

Efficiency of autothermal thermophilic aerobic digestion and thermophilic anaerobic digestion of municipal wastewater sludge in removing Salmonella spp. and indicator bacteria

2003 ◽  
Vol 47 (3) ◽  
pp. 151-156 ◽  
Author(s):  
J. Zábranská ◽  
M. Dohányos ◽  
P. Jeníček ◽  
H. Ružičková ◽  
A. Vránová
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Wastewater ◽  
Agricultural Land ◽  
Land Application ◽  
Wastewater Sludge ◽  
Indicator Bacteria ◽  
Salmonella Spp ◽  
Aerobic Digestion ◽  
Thermophilic Aerobic Digestion ◽  
Autothermal Thermophilic Aerobic Digestion

The study is focused on the comparison of autothermal thermophilic aerobic digestion, thermophilic and mesophilic anaerobic digestion, based on long term monitoring of all processes in full-scale wastewater treatment plants, with an emphasis on the efficiency in destroying pathogens. The hygienisation effect was evaluated as a removal of counts of indicator bacteria, thermotolerant coliforms and enterococci as CFU/g total sludge solids and a frequency of a positive Salmonella spp. detection. Both thermophilic technologies of municipal wastewater sludge stabilisation had the capability of producing sludge A biosolids suitable for agricultural land application when all operational parameters (mainly temperature, mixing and retention time) were stable and maintained at an appropriate level.

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