scholarly journals Obtaining biogas product from biological residues vaccines in Chone city

2020 ◽  
Vol 4 (1) ◽  
pp. 21-28
Author(s):  
Janner Leonel Santos Mantuano ◽  
Manuel Enrique Vergara Macías ◽  
Erik Sebastian Sanchez Toapanta ◽  
Klever Steven Tubay Palma ◽  
María Fernanda Vivas Giraldo
Keyword(s):  
Fossil Fuels ◽  
Fermentation Process ◽  
Organic Waste ◽  
Environmental Problem ◽  
Anaerobic Fermentation ◽  
Biogas Production ◽  
Calorific Value ◽  
Mixed Gas ◽  
Alternative Sources ◽  
The City

In this research, we studied the use of cattle biological waste to obtain biogas through a biodigester in the city of Chone, considered the livestock capital of Ecuador. Biogas is a mixed gas produced by the fermentation (anaerobic digestion) of organic materials in the absence of oxygen. It is mostly composed of methane and carbon dioxide. The biogas production process takes place in a container called a digester, in which the anaerobic fermentation process occurs. Obtaining biogas is one of the most used alternative sources for the production of renewable energy, so it can be evidenced by its importance as a tool against the fight of the environmental problem that exists today. The use of biogas of bovine origin has a high calorific value so it can be used for the production of heat, electricity or biofuel. This initiative seeks to manage and sustainably reduce organic waste, reduce the amount of greenhouse gas emitted into the atmosphere and reduce dependence on fossil fuels.

scholarly journals ANALYSIS OF BIOGAS PLANTS OPERATING MODES AND OPTIMAL MODE SELECTION

ASJ. ◽  
2020 ◽  
Vol 1 (37) ◽  
pp. 41-46
Author(s):  
O.M. Salamov ◽  
F.A. Salmanova ◽  
F.F. Aliyev
Keyword(s):  
Comparative Analysis ◽  
Fermentation Process ◽  
Organic Waste ◽  
Anaerobic Fermentation ◽  
Biogas Production ◽  
Mode Selection ◽  
Animal Origin ◽  
Operating Modes ◽  
Biogas Plants ◽  
Optimal Mode

The present study is dedicated to a comparative analysis of operating modes of biogas plants (BGP), in which the biogas production process from anaerobic fermentation by bacteria obtained from plant and animal origin biomass (BM) and organic waste (OW). The stages of the anaerobic fermentation process and the mechanisms of their realization are described. An optimal mode has been shown for a specific case.

Effect of addition of anaerobic fermented OFMSW (organic fraction of municipal solid waste) on biological nutrient removal (BNR) process: preliminary results

1998 ◽  
Vol 38 (1) ◽  
pp. 327-334 ◽  
Author(s):  
P. Pavan ◽  
P. Battistoni ◽  
P. Traverso ◽  
A. Musacco ◽  
F. Cecchi
Keyword(s):  
Nutrient Removal ◽  
Fermentation Process ◽  
Organic Waste ◽  
Anaerobic Fermentation ◽  
Pilot Scale ◽  
Biological Nutrient Removal ◽  
Organic Fraction ◽  
P Release ◽  
Pure Methanol ◽  
P Removal

The paper presents results coming from experiments on pilot scale plants about the possibility to integrate the organic waste and wastewater treatment cycles, using the light organic fraction produced via anaerobic fermentation of OFMSW as RBCOD source for BNR processes. The effluent from the anaerobic fermentation process, with an average content of 20 g/l of VFA+ lactic acid was added to wastewater to be treated in order to increase RBCOD content of about 60-70 mg/l. The results obtained in the BNR process through the addition of the effluent from the fermentation unit are presented. Significant increase of denitrification rate was obtained: 0.06 KgN-NO3/KgVSS d were denitrified in the best operative conditions studied. -Vmax shows values close to those typical of the pure methanol addition (about 0.3 KgN-NO3/KgVSS d). A considerable P release (35%) was observed in the anaerobic step of the BNR process, even if not yet a completely developed P removal process.

scholarly journals Study of the Fermentation Process of Different Fruit Biomasses

2018 ◽  
Vol 11 (2) ◽  
pp. 58-64
Author(s):  
Jailson Marques Da Silva ◽  
Nayana De Figueiredo Pereira ◽  
David David Vilas Boas de Campos ◽  
Antônio Orlando Izolani ◽  
Vinícius Marins Carraro ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
Ethanol Production ◽  
Volatile Compounds ◽  
Fermentation Process ◽  
Organic Waste ◽  
Higher Alcohols ◽  
Alcohol Content ◽  
Urban Waste ◽  
The City

Organic waste accounts for half of the urban waste generated inBrazil, 30% of which originates from fruit. In the search for new alternatives to reuse this biomass, the present study evaluated ethanol production from banana, apple, orange and papaya biomasses generated in commercial establishments in the city ofVassouras/RJ. The distilled products from the fruit biomass fermentation process were characterized regarding volatile compounds, acetaldehyde, acetone, ethyl acetate, ethanol, methanol, higher alcohols, isopropanol and isoamylic. The results indicate promising alcohol content according to the literature.

scholarly journals Analysis of the Possibility of Management of Curly-Leaf Pondweed for Energetic Purposes

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5477
Author(s):  
Marcin Herkowiak ◽  
Andrzej Osuch ◽  
Ewa Osuch ◽  
Bogusława Waliszewska ◽  
Grzegorz Zając
Keyword(s):  
Fermentation Process ◽  
Biogas Production ◽  
Calorific Value ◽  
Combustion Method ◽  
Calorimetric Study ◽  
Water Reservoirs ◽  
Biogas Yield ◽  
Solid Biofuel ◽  
Process Studies ◽  
Curly Leaf

The possibilities of using curly-leaf pondweed for energy purposes were analyzed. This plant contributes to overgrowth of water reservoirs, causing their eutrophication. The plants examined were from two different water reservoirs: Lake Winiary (Gniezno) and Lake Rusalka (Poznan). On the basis of the investigations, it was determined that it is possible to use curly-leaf pondweed for energy purposes, both in the combustion method and in the biomethane fermentation process. Studies were performed to assess the suitability of the plants for combustion as a solid biofuel and studies on the use of pondweed as a fermenter feedstock. The calorimetric study showed the possibility of obtaining more energy for the curly-leaf pondweed coming from Lake Rusalka. The heat of combustion of these plants was 13.95 MJ·kg−1 (Winiary pondweed) and 9.10 MJ·kg−1 (Rusalka pondweed). On the other hand, the calorific value of these plants was 12.60 MJ·kg−1 (Winiary pondweed) and 7.80 MJ·kg−1 (Rusalka pondweed). In the case of biogas yield studies, significantly higher biogas production was observed for Lake Rusalka pondweed than for Lake Winiary pondweed. The total biogas yield for these plants was 8.05 m3·Mg−1 for Rusalka pondweed and 3.19 m3·Mg−1 for Winiary pondweed. Differences in the chemical composition of pondweed originating from different lakes were also found, which translated into differences in the amount of energy that could be obtained from plants from both stands.

scholarly journals Verification of the Green Microalgae Biomass Use for Biogas Production

2019 ◽  
Vol 16 (1) ◽  
pp. 15-19
Author(s):  
Natalia Głowacka ◽  
Ján Gaduš
Keyword(s):  
Fossil Fuels ◽  
Slovak Republic ◽  
Anaerobic Fermentation ◽  
Biogas Production ◽  
Raw Material ◽  
Green Microalgae ◽  
Energy Potential ◽  
Research Results ◽  
Microalgae Biomass ◽  
The World

Abstract The article reviews the energy potential of microalgae as an alternative raw material for anaerobic digestion. Currently, energy security is one of the main topics among researchers. The amount of generated fossil fuels is limited, it is a question of time when fossil fuels will not continue to be accessible at low cost. There is a need to find an alternative carrier of energy which will replace the fossil fuels in the World. Green microalgae can be proposed as a possible bio raw-material, which can be used as an input material in order to produce energy. Lots of alternative technologies of algae cultivation are currently being developed all over the world. There is a necessity to search for a sensible way to produce algal biomass for bioenergy purposes, while maintaining all requirements involved in environmental and economic issues. The research results presented in the science article show that microalgae biomass is the proper alternative material for biogas production with the method of anaerobic fermentation. We believe that these research results can contribute to the future development of all forms of renewable energy in the Slovak Republic.

Design, Fabrication and Performance Test of a Prototype Biogas Digester

2007 ◽  
Vol 18-19 ◽  
pp. 527-532
Author(s):  
F.A. Aisien ◽  
U.F. Akakasiaka ◽  
O.G. Otoibhi ◽  
E.T. Aisien
Keyword(s):  
Stainless Steels ◽  
Organic Waste ◽  
Performance Test ◽  
Biogas Production ◽  
Simple Design ◽  
Optimum Ph ◽  
Palm Oil Mill ◽  
Alternative Sources ◽  
And Performance ◽  
Optimum Ph And Temperature

The search for alternative sources of energy from organic waste has been on in Nigeria. This report focuses on a simple design, fabrication and performance test of a prototype biogas digester. The volume of the digester was 340dm3 and that of the absorber/adsorber was 12.5dm3. The digester was fabricated using mild and stainless steels, styrofoam, polythene sheets and other materials. The digester can be moved about and agitated manually. In the performance test, 8.134L of biogas was generated within 14 days of anaerobic digestion of palm oil mill effluent (POME). The optimum pH and temperature for biogas production were 6.2 and 29oC respectively.

scholarly journals Multi-phase flow assessment for the fermentation process in mono-substrate reactor with skeleton bed

2019 ◽  
Vol 42 (1) ◽  
pp. 150-156
Author(s):  
Grzegorz Wałowski
Keyword(s):  
Reynolds Number ◽  
Fermentation Process ◽  
Flow Reactor ◽  
Anaerobic Fermentation ◽  
Biogas Production ◽  
Production Cycle ◽  
Phase Flow ◽  
Pig Slurry ◽  
Multi Phase Flow ◽  
Multi Phase

Abstract The selected techniques were reviewed and their technological aspects were characterized in the context of multi-phase flow for biogas production. The conditions of anaerobic fermentation for pig slurry in a mono-substrate reactor with skeleton bed were analysed. The required technical and technological criteria for producing raw biogas were indicated. Design and construction of the mono-substrate model, biogas flow reactor, developed for cooperation with livestock buildings of various sizes and power from 2.5 kW to 40 kW. The installation has the form of a sealed fermentation tank filled with a skeletal deposit constituting a peculiar spatial system with regular shapes and a rough surface. Incorporating a plant in such a production cycle that enables the entire slurry stream to be directed from the cowshed or pig house underrun channels to the reactor operating in the flow mode, where anaerobic digestion will take place, allows to obtain a biogas. The paper presents preliminary results of experimental investigations in the field of hydrodynamic substrate mixing system for biogas flow assessment by the adhesive bed in the context of biogas production. The aim of the study was to assessment and shows the influence of the Reynolds number on the biogas resistance factor for the fermentation process in mono-substrate reactor with adhesive deposit. The measurement results indicate a clear effect of the Reynolds number in relation to the descending flow resistance coefficient for the adhesive bed.

scholarly journals BIOGAS PRODUCTION FROM CO-DIGESTION OF SELECTED AGRICULTURAL WASTES IN NIGERIA

2015 ◽  
Vol 3 (11) ◽  
pp. 7-16
Author(s):  
Sambo ◽  
Etonihu ◽  
A. M. Mohammed
Keyword(s):  
Rice Husk ◽  
Crude Protein ◽  
Fossil Fuels ◽  
Biogas Production ◽  
Mineral Elements ◽  
Gas Production ◽  
Agricultural Wastes ◽  
Banana Peel ◽  
Volatile Solids ◽  
Alternative Sources

The fear of depletion of fossil fuels and their attendant ecological effects and the high cost of renewable energy technology in Nigeria has triggered a need to develop alternative sources of energy, among which is biogas production. A slurry of 1 kg mixture of agro-waste feed stocks (plantain peel/rice husk, PP/RH; banana peel/plantain peel, BP/PP; and banana peel/rice husk, BP/RH) in 1:1 ratio was co-digested in locally fabricated digesters (10 L capacity). The experiment was run for 50 days and assessed for proximate content, biogas generation, organic matter, and mineral content in the digested and undi-gested agro-waste materials. The proximate composition showed that while banana peel had the highest moisture (56%), rice husk was highest in the content of ash (64%), crude protein (6.94%), and volatile solids (20%). The weekly cumulative biogas generation increased from 852.6 cm3 for BP/PP sample to 1049.7 cm3 for PP/RH sample for the 7 weeks at the experimental room temperature range of 29 oC to 35 oC. Sample PP/RH generated the highest volume of gas (biogas, methane, and others) compared to BP/RH and BP/PP samples.  In each case the volume of gas production decreased in week 7 from 271.4 cm3 to 152.0 cm3 (for biogas), 161.4 cm3 to 97.1 cm3 (for methane), and 110.0 cm3 to 54.9 cm3 (for other gases). The nutritional concentrations of the digested and undigested mixture of the waste samples after Atomic Absorption Spectrophotometer (AAS) and Flame Photometry showed that the digested samples had higher contents of the nutritional elements than the undigested samples. The mineral elements ranged from 0.554 mg/g in the undigested rice husk to 18.155 mg/g in the digested banana peel samples. Fermentation of agricultural wastes to generate biogas and sludge with agricultural value offers an al-ternative and efficient method of agricultural wastes and energy management in Nigeria.

scholarly journals Delineating Comparative Studies on Biogas Production from Camel, Donkey and Horse Dungs

2021 ◽  
Vol 1 (1) ◽  
pp. 1-7
Author(s):  
Buhari S. ◽  
M.N Yahaya ◽  
Nasiru A.
Keyword(s):  
Health Effects ◽  
Retention Time ◽  
Fossil Fuels ◽  
Biogas Production ◽  
Gas Production ◽  
Fibrous Materials ◽  
Alternative Source ◽  
Ph Values ◽  
Alternative Sources ◽  
The Cost

The cost and the health effects of using other forms of energy, such as energy from fossil fuels and coal, make it necessary to find alternative sources of energy which are cheap and have no health effects on humans, animals and the environment. The energy derived from animal wastes, such as camel, donkey and horse dung, provide that alternative source of energy to humanity. To treat the problem of fossil fuel usage and greenhouse gas emissions, biogas is considered a potential source of clean renewable energy. The aim of this work is to compare the amount of biogas produced from cow, horse and camel dung. This work used three 1 litre capacity plastic gallons as prototype biodigesters. These biodigesters were operated and daily gas produced from the dung was observed for 37 days retention time. The digesters were fed with the same proportion of dung from each animal, and water. The operating temperatures of the digesters were maintained within the range of 34-390C, while pH values of the slurries ranged from 4.90 to 7.3. The biogas produced in 37 days retention time were found to be (4550 cm3)/150g for camels, (2210 cm3)/150g for donkeys and (4000 cm3 )/150g for horses. It was observed that the dungs were stagnant for one week, and the more the retention time, the more gas was produced. This investigation revealed that the gas production process was started on day 7, due to the fact that those animals were fed with fibrous materials and a longer time is required for digesting fibrous materials by microorganisms. The results obtained are compared in order of camel > horse > donkey. It was found that camels produce the highest volume of gas followed by horse and then donkey. The process of methane gas production, if extended to the commercial scale, would not only provide an alternative source of energy but would also be a means of environmental sanitation for the study area and Nigeria at large.

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