Enhancing the hydrolysis process in a dry anaerobic digestion process for the organic fraction of municipal solid waste

2020 ◽  
Vol 11 ◽  
pp. 100542
Author(s):  
Zeeshan Nasir ◽  
Birgitte K. Ahring ◽  
Hinrich Uellendahl
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Organic Fraction ◽  
Anaerobic Digestion Process ◽  
Digestion Process ◽  
Hydrolysis Process ◽  
Dry Anaerobic Digestion

scholarly journals High-Solids Anaerobic Digestion Followed by Ultrasonication of Digestate and Wet-Type Anaerobic Digestion for Enhancing Methane Yield from OFMSW

Processes ◽  
2020 ◽  
Vol 8 (5) ◽  
pp. 555 ◽  
Author(s):  
Bappi Chowdhury ◽  
Sarmad Bilal Magsi ◽  
Hok Nam Joey Ting ◽  
Bipro Ranjan Dhar
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Specific Energy ◽  
High Solids ◽  
Organic Fraction ◽  
Anaerobic Digestion Process ◽  
Digestion Process ◽  
Energy Inputs ◽  
Volatile Solids

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.

Process Simulation of Anaerobic Digestion Process for Municipal Solid Waste Treatment

2018 ◽  
pp. 71-83
Author(s):  
Noorlisa Harun ◽  
Wan Hanisah W. Ibrahim ◽  
Muhamad Faez Lukman ◽  
Muhammad Hafizuddin Mat Yusoff ◽  
Nur Fathin Shamirah Daud ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Process Simulation ◽  
Waste Treatment ◽  
Anaerobic Digestion Process ◽  
Digestion Process ◽  
Solid Waste Treatment

Emission of greenhouse gases from anaerobic digestion processes: comparison with other municipal solid waste treatments

2000 ◽  
Vol 41 (3) ◽  
pp. 275-282 ◽  
Author(s):  
J.M. Baldasano ◽  
C. Soriano
Keyword(s):  
Anaerobic Digestion ◽  
Greenhouse Gases ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Biological Treatment ◽  
Ghg Emissions ◽  
Anaerobic Digestion Process ◽  
Digestion Process ◽  
Management Processes ◽  
Emission Of Greenhouse Gases

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.

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
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
State Of The Art ◽  
Anaerobic Digestion Process ◽  
Digestion Process
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