scholarly journals Kinetic study of anaerobic digestion of whey permeate in a batch reactor /

1992 ◽  
Author(s):  
Roy Antony Karivelil
Keyword(s):  
Anaerobic Digestion ◽  
Kinetic Study ◽  
Batch Reactor ◽  
Whey Permeate

Simultaneous oxidation of ammonium and cresol isomers in a sequencing batch reactor: physiological and kinetic study

2016 ◽  
Vol 24 (33) ◽  
pp. 25667-25675 ◽  
Author(s):  
Juan Antonio Salas-Cortés ◽  
Flor de María Cuervo-López ◽  
Anne-Claire Texier
Keyword(s):  
Kinetic Study ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Simultaneous Oxidation

scholarly journals Effects of sulfonamide antibiotics on digestion performance and microbial community during swine manure anaerobic digestion

2020 ◽  
Vol 26 (1) ◽  
Author(s):  
Shaona Wang ◽  
Kang Du ◽  
Rongfang Yuan ◽  
Huilun Chen ◽  
Fei Wang ◽  
...  
Keyword(s):  
Organic Matter ◽  
Anaerobic Digestion ◽  
Dissolved Organic Matter ◽  
Methane Production ◽  
Volatile Fatty Acids ◽  
High Throughput Sequencing ◽  
Batch Reactor ◽  
Inhibition Mechanism ◽  
Sulfonamide Antibiotics ◽  
High Concentration

The effects of four types of sulfonamide antibiotics (SAs), including sulfaquinoxaline, sulfamethoxazole, sulfamethoxydiazine and sulfathiazole, on the digestion performance during anaerobic digestion process were studied using a lab-scale anaerobic sequencing batch reactor, and the changes of the community structure in the presence of SAs were investigated with the help of high throughput sequencing. The results indicated that when SAs were added, the hydrolytic acidification process was inhibited, and the accumulation of volatile fatty acids (VFAs) was induced, resulting in the suppression of methane production. However, the inhibition mechanism of different SAs was quite different. The inhibitory effect of high concentration of SAs on the hydrolysis of solid particulate matter into dissolved organic matter followed the order of sulfaquinoxaline > sulfamethoxydiazine > sulfathiazole > sulfamethoxazole. SAs have obvious inhibitory effects on acidification and methanation of dissolved organic matter, especially sulfathiazole. The richness and the community composition of the microorganism including bacteria and archaea in the digestion system were affected by SAs. Under the effect of SAs, the relative abundance of many microorganisms is negatively correlated with methane production, among which Methanobrevibacter, a kind of Archaea, had the greatest influence on methane production.

scholarly journals Anaerobic Digestion Process for the Treatment of Sisdole Landfill Leachate in Nepal

2020 ◽  
Vol 55 (4) ◽  
Author(s):  
Bikash Adhikari ◽  
Shilpa Koirala
Keyword(s):  
Anaerobic Digestion ◽  
Removal Efficiency ◽  
Landfill Leachate ◽  
Waste Treatment ◽  
Batch Reactor ◽  
Batch Reactors ◽  
Leachate Treatment ◽  
Anaerobic Digestion Process ◽  
Digestion Process ◽  
Solids Concentration

Along with the population, organic waste has been rising significantly in recent years. The resulting uncontrollable waste loads and conventional methods of waste treatment have begun to cause chaos at the landfill sites. This study evaluates the performance of an anaerobic digestion process using batch reactors for the treatment of landfill leachate collected from the Sisdole landfill site in Nuwakot, Nepal. A lab-scale anaerobic batch reactor was set up in Kathmandu University, Nepal. Using an anaerobic digestion process, COD values of the leachate decreased from 2230 mg/l to 1125 mg/l (removal efficiency of ~50%), whereas total solids concentration decreased from 1925 to 925 mg/L under a retention time of 10 days. In addition, Monod’s model was established to design an Anaerobic Sequential Batch Reactor to achieve better performance, resulting in 85% removal efficiency for the leachate treatment. Overall, this study analyzed the anaerobic digestion process on the landfill leachate of Sisdole, and modeled the process to identify the conditions required for increasing the efficiency of treatment of Sisdole landfill leachate.

Kinetic study of anaerobic digestion of olive mill wastewater previously fermented with Aspergillus terreus

1993 ◽  
Vol 28 (6) ◽  
pp. 397-404 ◽  
Author(s):  
R. Borja ◽  
S.E. Garrido ◽  
L. Martínez ◽  
A. Ramos-Cormenzana ◽  
A. Martín
Keyword(s):  
Anaerobic Digestion ◽  
Kinetic Study ◽  
Aspergillus Terreus ◽  
Olive Mill Wastewater ◽  
Olive Mill

Effects of pretreatments on anaerobic digestion performances in batch reactor for pig mortality and microbial consortia management

2020 ◽  
Vol 140 ◽  
pp. 105652
Author(s):  
Binbin Tang ◽  
Guoqing Li ◽  
Mimi He ◽  
Jianfeng Liu ◽  
Junlin Ji ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Batch Reactor ◽  
Microbial Consortia

Cellulosic waste degradation by rumen-enhanced anaerobic digestion

2003 ◽  
Vol 48 (4) ◽  
pp. 155-162 ◽  
Author(s):  
S.P. Barnes ◽  
J. Keller
Keyword(s):  
Anaerobic Digestion ◽  
Sequencing Batch Reactor ◽  
Loading Rate ◽  
Cellulose Degradation ◽  
Batch Reactor ◽  
Lignocellulosic Material ◽  
Anaerobic Sequencing Batch Reactor ◽  
Microbial Ecosystems ◽  
Cellulosic Waste ◽  
Waste Degradation

Anaerobic digestion of lignocellulosic material is carried out effectively in many natural microbial ecosystems including the rumen. A rumen-enhanced anaerobic sequencing batch reactor was used to investigate cellulose degradation to give analysis of overall process stoichiometry and rates of hydrolysis. The reactor achieved VFA production rates of 207-236 mg COD/L/h at a loading rate of 10 g/L/d. Overloading of the reactor resulted in elevated production of propionic acid, and on occasion, the presence of succinic acid. With improvements in mixing and solids wasting, the anaerobic sequencing batch reactor system could enable full-scale application of the process for treatment of cellulosic waste material.

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