5100553 Method for treating organic waste by methane fermentation

1992 ◽  
Vol 10 (3) ◽  
pp. 527
Keyword(s):  
Organic Waste ◽  
Methane Fermentation

scholarly journals Development of optimum substrate compositions in the methane fermentation process

2015 ◽  
Vol 29 (3) ◽  
pp. 313-321 ◽  
Author(s):  
Justyna Lalak ◽  
Agnieszka Kasprzycka ◽  
Ewelina M. Paprota ◽  
Jerzy Tys ◽  
Aleksandra Murat
Keyword(s):  
Organic Waste ◽  
Biogas Production ◽  
Chemical Parameters ◽  
Maize Silage ◽  
Methane Fermentation ◽  
Biogas Yield ◽  
Parameters Analysis ◽  
Agriculture And Food ◽  
Physical And Chemical ◽  
By Products

AbstractThe aim of the study was to assess the potential of organic wastes from the agriculture and food industry as co-substrate for biogas production, on the basis of physical and chemical parameters analysis and biogas yield in the process of methane fermentation. The experimental material consisted of carrot pomace, kale by-products and maize silage. Methane fermentation was conducted in bioreactors equipped with an automatic control and measurement system. The study indicated correct physicochemical properties in terms of high content of dry organic matter and also correct C/N ratio. That was reflected in high biogas yields which amounted to, respectively, 558 N dm3kg−1VS−1for carrot pomace and kale by-products, and 526 N dm3kg−1VS−1for maize silage. The study showed that the intensity of biogas production was varied and depended on the composition of fermented mixtures. Methane fermentation of organic waste mixtures significantly increased the amount of biogas efficiency compared to the fermentation of individual substrates. The successful run of the experiment indicates that a mixture composed of carrot pomace and kale by-products is a good substrate for the production of biogas.

Methane fermentation process for utilization of organic waste

2012 ◽  
Vol 26 (3) ◽  
pp. 317-330 ◽  
Author(s):  
M. Frąc ◽  
K. Ziemiński
Keyword(s):  
Carbon Dioxide ◽  
Anaerobic Digestion ◽  
Fermentation Process ◽  
Organic Waste ◽  
Current Knowledge ◽  
Sustainable Energy ◽  
Methane Fermentation ◽  
Factors Affecting ◽  
Biomass Resources ◽  
Renewable And Sustainable Energy

Methane fermentation process for utilization of organic wasteBiogas is a renewable and sustainable energy carrier generatedviaanaerobic digestion of biomass. This fuel is derived from various biomass resources and depending on its origin it contains methane (40-75%), carbon dioxide (20-45%) and some other compounds. The aim of this paper is to present the current knowledge and prospects of using the methane fermentation process to dispose of various types of organic wastes as well as conditions and factors affecting the methane fermentation process.

scholarly journals Energy Recovery and Utilization by Methane Fermentation of Organic Waste from Baking Factory

2007 ◽  
Vol 86 (1) ◽  
pp. 46-54
Author(s):  
Saeko SHIMIZU ◽  
Ryuji MATSUHASHI ◽  
Yoshikuni YOSHIDA
Keyword(s):  
Energy Recovery ◽  
Organic Waste ◽  
Methane Fermentation

scholarly journals TWO-STAGE DEGRADATION OF SOLID ORGANIC WASTE AND LIQUID FILTRATE

2021 ◽  
Vol 14 (4) ◽  
pp. 70-79
Author(s):  
V. M. Hovorukha ◽  
Keyword(s):  
Organic Compounds ◽  
Organic Waste ◽  
Aerobic Oxidation ◽  
Short Chain Fatty Acids ◽  
Gas Composition ◽  
Efficient Removal ◽  
Methane Fermentation ◽  
Ch4 Production ◽  
Production Problem ◽  
Dissolved Organic Compounds

The accumulation of solid and liquid organic waste requires their treatment to develop energy biotechnologies and prevent environment pollution. Aim. The goal of the work was to study the efficiency of the purification of the filtrate from dissolved organic compounds by aerobic oxidation and methane fermentation. Methods. The standard methods were used to determine рН and redox potential (Eh), the gas composition, the content of short-chain fatty acids, the concentration of dissolved organic compounds counting to the total сarbon. The efficiency of two types of microbial metabolism for the degradation of soluble organic compounds of filtrate was compared. Results. The aerobic oxidation was established to provide 1.9 times more efficient removal of dissolved organic compounds, compared with the anaerobic methane fermentation. However, it provided CH4 yield 1 L/dm3 of filtrate (сarbon concentration — 1071 mg/L). The necessity to optimize the methods for purifying filtrate to increase the efficiency of the process was determined. Conclusions. The obtained results will be the basis to develop complex biotechnology providing not only the production of environmentally friendly energy H2 via the fermentation of solid food waste, but also the purification of filtrate to solve the ecological and energy (CH4 production) problem of society.

scholarly journals GASEOUS FUEL OBTAINING VIA FERMENTATION OF ORGANIC LANDFILL WASTE

2021 ◽  
pp. 36-48
Author(s):  
Vira Hovorukha ◽  
Olesia Havryliuk ◽  
Galyna Gladka ◽  
Bida Iryna ◽  
Yanina Danko ◽  
...  
Keyword(s):  
Organic Waste ◽  
High Efficiency ◽  
Control Volume ◽  
Industrial Biotechnology ◽  
Hydrogen Yield ◽  
Methane Fermentation ◽  
Fossil Carbon ◽  
Gas Fermentation ◽  
Low Efficiency ◽  
Fermentation Parameters

Fossil carbon-containing fuel is currently one of the most common in industry and economy. The rapid depletion of reserves of this fuel makes it necessary to search for the alternative one. Landfills are a place where methane is spontaneously synthesized due to the decay of organic waste. Controlled and regulated fermentation of the landfill organics can provide biomethane as well as environmental bioremediation. The aim of the work was to study the patterns of methane fermentation of multi component organic waste and optimize the process to increase the efficiency of biomethane synthesis and waste decomposition. Colorimetric and potentiometric methods were used for pH and Eh measurement. Volumetric and chromatographic methods were applied to control volume and composition of synthesized gas. Fermentation parameters were calculated with the use of mathematical and statistical ones. The achievement of high efficiency of methane fermentation of organic waste due to the process regulation was shown. The modeling of unregulated fermentation of organic waste in landfills showed low efficiency of the process. It took 69 days. Weight of waste decreased only 5 times. Hydrogen yield was 5 L/kg of waste. Methane was not synthesized. The regular mass transfer, regulation of the process and waste grinding showed the greatest efficiency. Weight of waste decreased 20 times during only 14 days. Hydrogen yield was 27 L/kg, methane yield was 12 L/kg of waste. Thus, the absence of regulation caused long term decay of waste. The high efficiency is achieved due to regulation of the fermentation process. The results will serve as a basis for the development of industrial biotechnology for the utilization of organic waste to reduce the volume of existing landfills and produce methane energy. This will further allow bioremediation of contaminated areas, obtaining an alternative to fossil fuel biomethane.

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