Study on Pretreatment and Kinetics of Waste Klebsiella Pneumoniae by the Autothermal Thermophilic Aerobic Digestion Process

2011 ◽  
Author(s):  
Jingming Liu ◽  
Jian Lin ◽  
Yanyan Chen ◽  
Zhirong Zhu ◽  
Ji Ma
Keyword(s):  
Klebsiella Pneumoniae ◽  
Aerobic Digestion ◽  
Digestion Process ◽  
Thermophilic Aerobic Digestion ◽  
Autothermal Thermophilic Aerobic Digestion ◽  
Kinetics Of

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.

Autothermal Thermophilic Aerobic Digestion Process and its Kinetic Model for Pretreating Klebsiella Pneumoniae Waste

2013 ◽  
Vol 448-453 ◽  
pp. 1388-1393
Author(s):  
Jing Ming Liu ◽  
Le Shi ◽  
Hong Zhuan Wang ◽  
Wen Zhi Jia ◽  
Zhi Rong Zhu
Keyword(s):  
Kinetic Model ◽  
Klebsiella Pneumoniae ◽  
Ph Value ◽  
Aerobic Digestion ◽  
Removal Ratio ◽  
Fermented Product ◽  
Solids Retention ◽  
Thermophilic Aerobic Digestion ◽  
Autothermal Thermophilic Aerobic Digestion ◽  
Experimental Values

An autothermal thermophilic aerobic digestion (ATAD) and its kinetics were studied for pretreatment of waste Klebsiella pneumoniae strains from 1, 3-propanediol (1, 3-PD) fermented product. The total suspended solids (TSS), pH value, Redox potential and temperature variation by self-heating were investigated, including the numbers of pathogens. The results showed that TSS removal ratio and the temperature reached 62.75% and 65 °C respectively. Besides, the pathogens removal ratio was 100%. By using a patch-typed process of ATAD for pre-treating waste Klebsiella pneumoniae strains from 1, 3-propanediol, TSS removal ratio can reach 65.0%, solids retention time of 13 d. The relative deviation between the calculated and experimental values is less than 12.80%, and the results from the kinetic model developed for the ATAD process had a good agreement with the experimental results.

The Study of Sludge Characteristics for One-Stage Autothermal Thermophilic Aerobic Digestion Process

2011 ◽  
Vol 236-238 ◽  
pp. 437-440 ◽  
Author(s):  
Jie Hong Cheng ◽  
Yan Yan Zhang ◽  
Nan Wen Zhu ◽  
Shu Gen Liu
Keyword(s):  
Fatty Acid ◽  
Retention Time ◽  
Volatile Fatty Acid ◽  
Suspended Solids ◽  
Removal Rates ◽  
Aerobic Digestion ◽  
Digestion Process ◽  
One Stage ◽  
Thermophilic Aerobic Digestion ◽  
Autothermal Thermophilic Aerobic Digestion

One-stage Autothermal Thermophilic Aerobic Digestion was autonomously designed to treat municipal sludges. By the way of batch operation experiment, the influence of removal rates of volatile suspended solids(VSS), total suspended solids(TSS), auto-rise temperature, and COD concentration, volatile fatty acid concentration of sludge, were investigated respectively. The results showed that a large part of reactor temperature was in thermophilic statues at 56°C-60°C during sludge digestion period; Municipal sludges treated have achieved stabilization standard of 503 articles of EPA while removal rates of VSS and TSS at 38.9% and 31% respectively for 360h retention time. Resulting from micro-organisms hydrolysis reaction, total COD concentration of sludge supernatant (SCOD) was increased firstly and then dropped afterward during the process of digestion while total COD concentration of solid phase of sludge(TCOD) still fall down with removal rate of TCOD at 35.6% for 360h retention time. A sum of concentration of volatile fatty acid(VFA) was accumulated gradually in the sludge supernatant at 2745mg/L for 360h retention time because of micro-aerobic situation in the beginning of digestion process, and can be use as the carbon sources for wastewater treatment process.

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
Sign in / Sign up

Export Citation Format

Share Document