scholarly journals Comparative Study on Anaerobic Degradation Processes of Pressed Liquid Fraction of Organic Solid Waste

2021 ◽  
Vol 49 (1) ◽  
pp. 31-35
Author(s):  
Tamás Rózsenberszki ◽  
László Koók ◽  
Péter Bakonyi ◽  
Nándor Nemestóthy ◽  
Katalin Bélafi-Bakó
Keyword(s):  
Solid Waste ◽  
Microbial Fuel Cells ◽  
Energy Recovery ◽  
Anaerobic Degradation ◽  
Liquid Fraction ◽  
Oxygen Demand ◽  
Organic Solid Waste ◽  
Degradation Processes ◽  
Organic Solid ◽  
Demand Reduction

Anaerobic degradation processes: anaerobic digestion (biogasification), biohydrogen fermentation (dark) and microbial fuel cells were applied to treat the organic fraction of a municipal solid waste. The processes were compared based on their ability of energy recovery and Chemical Oxygen Demand reduction.

scholarly journals EVALUATION OF NEW SMALL-SCALE COMPOSTING PRACTICES WITH ENERGY RECOVERY

Detritus ◽  
2020 ◽  
pp. 3-10
Author(s):  
Roberto Guião de Souza Lima Jr. ◽  
Claudio Fernando Mahler
Keyword(s):  
Solid Waste ◽  
Energy Recovery ◽  
Gas Production ◽  
Small Scale ◽  
Shopping Malls ◽  
Organic Solid Waste ◽  
Organic Solid ◽  
Water Recirculation ◽  
Composting Systems ◽  
Industrial Composting

This study involves the evaluation of new composting systems for the treatment of organic solid waste that has low environmental impact. Two composting devices were developed, with four types of management. Their behavior was analyzed regarding temperature, gas production, moisture, leachate and percolated water production, compost maturation, nutrient presence, pH and water heating, which can be seen as an energy gain in addition to the economic viability of the process. The proposed composting techniques kept the waste at thermophilic temperatures for more than 20 days, with no significant emission of CH4, under aerobic conditions by passive aeration, without leachate generation. These results can be partially attributed to the suspension of the compost on pallets, the residue composition chosen in the experiments and the boundary conditions of the compartments. The energy recovery test, through water recirculation inside the compost, presented temperatures that reached 51°C after 24 h of recirculation, and were maintained throughout the process, 20 days, demonstrating its effectiveness. The proposed models are environmentally viable, minimizing gas emissions and leachate generation compared to landfill or industrial composting plants. They can be used in industrial kitchens, residential complexes, shopping malls and other small and medium solid waste generators. In addition, the solution presented in this study avoids the transportation of waste over medium and long distances, which also brings a significant reduction in energy expenses, and in the case of landfills, it avoids occupation for long periods, thus reducing emissions of gases and leachate, whose control and treatment are expensive.

scholarly journals Comparison of Anaerobic Degradation Processes for Bioenergy Generation from Liquid Fraction of Pressed Solid Waste

2015 ◽  
Vol 6 (4) ◽  
pp. 465-473 ◽  
Author(s):  
T. Rózsenberszki ◽  
L. Koók ◽  
D. Hutvágner ◽  
N. Nemestóthy ◽  
K. Bélafi-Bakó ◽  
...  
Keyword(s):  
Solid Waste ◽  
Anaerobic Degradation ◽  
Liquid Fraction ◽  
Degradation Processes ◽  
Bioenergy Generation

Effect of pH and VFA on Hydrolysis of Organic Solid Waste

2000 ◽  
Vol 126 (12) ◽  
pp. 1076-1081 ◽  
Author(s):  
Adrie Veeken ◽  
Sergey Kalyuzhnyi ◽  
Heijo Scharff ◽  
Bert Hamelers
Keyword(s):  
Solid Waste ◽  
Effect Of Ph ◽  
Organic Solid Waste ◽  
Organic Solid ◽  
Hydrolysis Of
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