scholarly journals Investigation and Improvement of Content of Methane in Biogas Generated from Municipal Solid Waste.

2020 ◽  
Vol 170 ◽  
pp. 04002
Author(s):  
Shyamsing Thakur ◽  
Rahul Barjibhe
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Biogas Production ◽  
Research Work ◽  
Weather Conditions ◽  
Summer Season ◽  
Biogas Plant ◽  
Cow Dung ◽  
Time Duration

The methane yield and overall biogas generation reduce drastically in the winter and summer season. The Biogas plant operators reported better results with the co-digestion of the municipal solid waste (MSW) with cow dung in changing weather conditions. In this research work the quality and content of methane in biogas generated from biogas plant is improved by co-digestion of MSW, cow dung along with the urine with better carbon to nitrogen (C/N) Ration. We took number of experiment using different ratio of MSW and additives to improve biogas. Rigorous experimentations concluded that the co-digestion of the MSW, cowdung and urine in the proportion of (55:35:10) with equal amount water in a portable bio digester for anaerobic digestion results into better methane production with maintaining C/N ratio and reducing time duration for flammable biogas production.

scholarly journals The generation of a mathematical model of the biogas production process from organic municipal solid waste

2020 ◽  
Vol 180 ◽  
pp. 02019 ◽  
Author(s):  
Marzhan Temirbekova ◽  
Madina Aliyarova ◽  
Iliya Iliev ◽  
Aliya Yelemanova ◽  
Saule Sagintayeva
Keyword(s):  
Mathematical Model ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Anaerobic Fermentation ◽  
Biogas Production ◽  
Biogas Plant ◽  
Model Parameters ◽  
Biochemical Processes ◽  
Biogas Plants ◽  
The Mathematical Model

This paper justifies the efficiency of the biogas collection and utilization at the MSW (municipal solid waste) landfill in Almaty with the installation of several modern biogas plants. The optimal mode of processes occurring in a biogas plant is determined by computer generated simulations. Mathematical model parameters were identified to describe biochemical processes occurring in a biogas plant. Two approaches are used to resolve the mathematical model: the finite-difference method for solving the system of differential equations and simulation modeling by using the Any Logic package. A program is written in the algorithmic language C ++. Numerous calculations were carried out, the results of which are presented in curves and their qualitative picture is consistent with the ongoing processes. The created computer program allows to make a preliminary forecast of anaerobic fermentation occurring in the bioreactor depending on volume of the substrate, methane microorganisms and temperature conditions.

Relationship between Lipase Activity and Biogas Rate in Anaerobic Digestion of Organic Fraction of Municipal Solid Waste

2013 ◽  
Vol 295-298 ◽  
pp. 1834-1839
Author(s):  
Jian Chang Li ◽  
Ya Ge Yuan ◽  
Juan He ◽  
Rui Xu
Keyword(s):  
Enzyme Activity ◽  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Lipase Activity ◽  
Biogas Production ◽  
Hydrolytic Enzymes ◽  
Organic Fraction ◽  
Peak Period ◽  
The Relationship

Hydrolytic enzymes, which are very key enzymes in hydrolytic step of anaerobic digestion, have an important effect on substrate hydrolysis and biogas production. To research those effect, this paper have investigated the relationship between lipase activity and biogas rate with organic fraction of municipal solid waste (OFMSW) as substrate, at the mesophilic temperature and batch fermentation. The results showed that in the process of AD, the curve of lipase activity was similar as that of biogas rate. With the increase and drop of enzyme activity, biogas rate increased and dropped. When biogas rate was at its peak period, enzyme activity of lipase was at its peak period, too.

scholarly journals The Current Status and Future Potential of Biogas Production from Canada’s Organic Fraction Municipal Solid Waste

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 475
Author(s):  
Omid Norouzi ◽  
Animesh Dutta
Keyword(s):  
Anaerobic Digestion ◽  
Waste Management ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Solid Waste Management ◽  
Biogas Production ◽  
Organic Wastes ◽  
Current Status ◽  
Municipal Solid Waste Management ◽  
Organic Fraction

With the implementation of new policies supporting renewable natural gas production from organic wastes, Canada began replacing traditional disposal methods with highly integrated biogas production strategies. Herein, data from published papers, Canadian Biogas Association, Canada’s national statistical agency, and energy companies’ websites were gathered to gain insight into the current status of anaerobic digestion plants in recovering energy and resource from organic wastes. The availability of materials prepared for recycling by companies and local waste management organizations and existing infrastructures for municipal solid waste management were examined. Governmental incentives and discouragements in Canada and world anaerobic digestion leaders regarding organic fraction municipal solid waste management were comprehensively reviewed to identify the opportunities for developing large-scale anaerobic digestion in Canada. A range of anaerobic digestion facilities, including water resource recovery facilities, standalone digesters, and on-farm digesters throughout Ontario, were compared in terms of digestion type, digester volume, feedstock (s), and electricity capacity to better understand the current role of biogas plants in this province. Finally, technology perspectives, solutions, and roadmaps were discussed to shape the future in terms of organic fraction municipal solid waste management. The findings suggested that the biogas industry growth in Canada relies on provincial energy and waste management policies, advanced technologies for diverting organic waste from landfills, improving biogas yield using existing pretreatment methods, and educating farmers regarding digester operations.

Investigation of Biogas Production Using Organic Kitchen Wastes through Anaerobic Digestion

2015 ◽  
Vol 787 ◽  
pp. 97-101
Author(s):  
D. Thamilselvan ◽  
K. Arulkumar ◽  
M. Kannan
Keyword(s):  
Anaerobic Digestion ◽  
Fossil Fuels ◽  
Biogas Production ◽  
Renewable Resource ◽  
Biogas Plant ◽  
Cow Dung ◽  
Fermentation Time ◽  
Ph Variation ◽  
Biogas Yield ◽  
Oil Crisis

The present day’sresearch interests on bioenergy have been expanded rapidly due to oil crisis of 1980s. This bio energy should be available in locally and it’spurer than the fossil fuels. The field of bio energyis important for governments, scientists and business people in worldwide because of its available in nature and renewable resource. Todays the most important renewable energy is Biomass. The biological conversion of biomass to methane has become rapidly increasing in present days. All types of organic wastes can be converted to methane. In this study the installed plant is a sintex floating type biogas plant. The cubic capacity of plant is about 1000 liter. The pH range is maintained in the level of 6.8 to 7.5. The fermentation time of the anaerobic digestion for the efficient usage of gas as a fuel is about 30 days. Our biogas plant is used for all types of anaerobic respirating wastes such as cow dung manure, kitchen wastes etc.The input feed of kitchen waste is about 10 kg per day. The output of the biogas yield is about 0.714 m3/kg. The composition of biogas is 50% to 60% of methane and rather than remaining 30% to 40% CO2and small amount of water about 2% to 5%. The performance characteristics of biogas plant are studied in this paper. To evaluate the performance of biogas production and pH variation throughout this study.

scholarly journals Process optimization of dry batch anaerobic digestion of municipal solid waste

2007 ◽  
pp. 357-366
Author(s):  
Jeanger P. Juanga
Keyword(s):  
Particle Size ◽  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Biogas Production ◽  
Process Efficiency ◽  
Particle Size Reduction ◽  
Digestion Process ◽  
Waste Stabilization ◽  
Substrate Particle

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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