State of the art of R&D in the anaerobic digestion process of municipal solid waste in Europe

Biomass ◽  
1988 ◽  
Vol 16 (4) ◽  
pp. 257-284 ◽  
Author(s):  
F. Cecchi ◽  
P.G. Traverso ◽  
J. Mata-Alvarez ◽  
J. Clancy ◽  
C. Zaror
Author(s):  
Noorlisa Harun ◽  
Wan Hanisah W. Ibrahim ◽  
Muhamad Faez Lukman ◽  
Muhammad Hafizuddin Mat Yusoff ◽  
Nur Fathin Shamirah Daud ◽  
...  

2000 ◽  
Vol 41 (3) ◽  
pp. 275-282 ◽  
Author(s):  
J.M. Baldasano ◽  
C. Soriano

This contribution analyzes the anaerobic digestion process and compares GHG emissions estimated for four different management processes for MSW (Municipal Solid Waste): biogasification, landfilling, composting and incineration. The comparison has been undertaken by considering in the estimation of the emissions the full cycle of MSW treatment, and not only the emissions derived from the fraction of MSW treated by each particular system. For instance, the fraction of MSW not submitted to biological treatment has to be incinerated or deposited in a landfill. The corresponding emissions of these processes have to be considered in the calculations of the final emissions.


Processes ◽  
2020 ◽  
Vol 8 (5) ◽  
pp. 555 ◽  
Author(s):  
Bappi Chowdhury ◽  
Sarmad Bilal Magsi ◽  
Hok Nam Joey Ting ◽  
Bipro Ranjan Dhar

High-solids anaerobic digestion of organic fraction of municipal solid waste often shows inefficient biomethane recovery due to mass transfer limitations. Consequently, this study presents a two-stage anaerobic digestion process combining high-solids anaerobic digestion followed by ultrasonication of digestate and wet-type anaerobic digestion for effective biomethane recovery from the organic fraction of municipal solid waste. The high-solids anaerobic digestion yielded methane production of 210 L CH4/kg volatile solids (VS). The digestate from the high-solids anaerobic digestion process was ultrasonicated at three different specific energy inputs (1000, 2500, and 5000 kJ/kg total solids (TS)). The increases in the soluble chemical oxygen demand (SCOD) concentrations (8%–32%) and volatile solids (VS) removal efficiencies (3.5%–10%) at different specific energy inputs were linearly correlated (R2 = 0.9356). Thus, ultrasonication led to the solubilization of particulate organics and released soluble organic matters. All ultrasonicated digestate samples showed significantly higher biomethane yields than that observed for the untreated digestate samples. The highest methane yield of 132 L CH4/kg VS was observed for a specific energy input of 5000 kJ/kg TS, which was 1.94 times higher than the control (68 L CH4/kg VS). Although specific energy inputs of 1000 kJ/kg TS and 2500 kJ/kg TS showed comparable methane yields (113–114 L CH4/kg VS), they were ~1.67 times higher than the control. Overall, our results suggest that an integrated system of high-solids and wet-type anaerobic digestion with pre-ultrasonication of digestate has the potential to provide a technically viable solution to enhance biomethane recovery from the organic fraction of municipal solid waste.


2007 ◽  
pp. 357-366
Author(s):  
Jeanger P. Juanga

Optimizing anaerobic digestion aims to maximize organic waste stabilization at shortdigestion period with higher biogas production. This paper presents different strategies tooptimize the anaerobic digestion of organic fraction of municipal solid waste in combinedprocess in which early flushing and microaeration were conducted during pre-stage, Also, theinfluence of substrate particle size reduction and the advantage of thermophilic system overmesophilic in the overall digestion process are presented, Additionally, an attempt was takento employ sequential staging concept by using a mature (old) reactor which underwent acombined digestion process. Importantly, process evaluation between an optimized combinedprocess and sequential staging concept were evaluated with the main objective of optimizingthe process, Process efficiency evaluation was based on biochemical methane potential(BMP) test The overall result suggest that the combined anaerobic digestion process can beoptimized by conducting shorter duration of pre-stage at reduced volume of flushing waterwith microearation, under thennophilic condition at reduced substrate particle size of 30 mm,Nevertheless, the sequential staging concept offers an improved operation over the combinedanaerobic digestion wherein the higher specific methane yield of 11.9 L CH4/kg VS.day wasachieved, Improved waste stabilization with 86% and 79% mass and volume reduction whichcorresponds to 84% process efficiency was obtained by sequential staging process,


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