scholarly journals Aspects on Anaerobic Digestion of Municipal Sludge, Some Aspects on its Sustainability and Possible Enhancements

2020 ◽  
Author(s):  
Stig Morling
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Sludge

Enhancement of Anaerobic Digestion of Excess Municipal Sludge with Thermal and/or Oxidative Treatment

2006 ◽  
Vol 132 (6) ◽  
pp. 638-644 ◽  
Author(s):  
Jesús A. Cacho Rivero ◽  
Narain Madhavan ◽  
Makram T. Suidan ◽  
Philippe Ginestet ◽  
Jean-Marc Audic
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Sludge ◽  
Oxidative Treatment

Fate of antibiotic resistance genes during temperature-changed psychrophilic anaerobic digestion of municipal sludge

2021 ◽  
Vol 194 ◽  
pp. 116926
Author(s):  
Hui Yun ◽  
Bin Liang ◽  
Yangcheng Ding ◽  
Si Li ◽  
Zhenfei Wang ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Anaerobic Digestion ◽  
Resistance Genes ◽  
Antibiotic Resistance Genes ◽  
Municipal Sludge

Hydrothermal Pre- and Inter-Treatment for Anaerobic Digestion of Municipal Sludge

2021 ◽  
Author(s):  
Elsayed Elbeshbishy ◽  
Farokh Laqa Kakar ◽  
Steven N. Liss
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Sludge

Studies of the Production of Volatile Fatty Acids in the Anaerobic Digestion of Municipal Sludge

1986 ◽  
Vol 21 (1) ◽  
pp. 58-70 ◽  
Author(s):  
P.H. Jones ◽  
J. Szekely
Keyword(s):  
Fatty Acids ◽  
Anaerobic Digestion ◽  
Volatile Fatty Acids ◽  
Gas Production ◽  
Municipal Sludge ◽  
Anaerobic Digesters ◽  
Effect Of Ph ◽  
Commercial Value

Abstract Volatile fatty acids (VFA’s) produced during anaerobic digestion of sludge have higher commercial value than methane produced subsequently. Therefore it was decided to determine conditions necessary to maximise production of VFA’s. Five anaerobic digesters were operated in parallel in the laboratory to investigate the effect of pH on the formation of VFA’s. Concentrations of individual fatty acids were measured. Both VFA production as well as gas production was favoured by pH approaching neutrality.

Enhancing the Performance and Stability of the Co-anaerobic Digestion of Municipal Sludge and Food Waste by Granular Activated Carbon Dosing

2020 ◽  
Vol 34 (12) ◽  
pp. 16284-16293
Author(s):  
Mengyao Wang ◽  
Yulei Qian ◽  
Yingdong Zhu ◽  
Xiaoyu Yong ◽  
Honghua Jia ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Anaerobic Digestion ◽  
Food Waste ◽  
Granular Activated Carbon ◽  
Municipal Sludge

scholarly journals In-Storage-Psychrophilic-Anaerobic-Digestion (ISPAD) process. Part I: Model Development and Calibration

2015 ◽  
Vol 4 (2) ◽  
pp. 165 ◽  
Author(s):  
Mahsa Madani Hosseini ◽  
Catherine N. Mulligan ◽  
Suzelle Barrington
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Model Development ◽  
Laboratory Data ◽  
Batch Process ◽  
Municipal Sludge ◽  
Batch Experiments ◽  
Fed Batch ◽  
Microbial Kinetics ◽  
Good Agreement

<p class="emsd">In-Storage-Psychrophilic-Anaerobic-Digestion (ISPAD) is a treatment system applicable to wastewaters stored for over 100 days, such as livestock wastes and municipal sludge. The ISPAD system differs from conventional reactors by being a sequentially fed batch process operating at a temperature fluctuating with ambient. The objective of this study was to develop a mathematical model to simulate the ISPAD process, verify the value of its microbial kinetics, and to simulate the pH evolution of its content along with its methane (CH<sub>4</sub>) production. Furthermore, the values of the ISPAD microbial kinetics were compared to that of previous years to track for further acclimation to psychrophilic conditions. Simulation of ISPAD was achieved using the Simulink/Matlab software. The model was calibrated using laboratory data obtained from batch experiments using 7-year-old ISPAD inoculum, and glucose as substrate, and where glucose, VFAs and pH changes were monitored along with biogas production. The ISPAD model showed good agreement with the experimental data representing the system behaviour between 4 and 35 ºC. Although microbial activity at 4 °C was much slower than that at 18 and 35 ºC, it showed acclimation to low temperatures. Furthermore, comparison of microbial kinetic values over 3 years of field ISPAD monitoring demonstrated continued population acclimation, especially for the methanogens.</p>

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