id: 27573
Title: Development of biogas technology production from polycomponent raw materials
Authors: Bernyk I. M., Skoromna O. I., Solomon A. M.
Keywords: biogas, pig manure, beet pulp, apple pomace, technological scheme, methane, carbon, nitrogen
Date of publication: 2020-12-17 08:43:19
Last changes: 2020-12-17 08:43:19
Year of publication: 2020
Summary: The analysis of the production peculiarities of renewable energy sources, in particular biogas, is carried out in the work. In anaerobic processing of biomass, the process of biogas formation takes place in the following stages: hydrolysis, acidogenesis, acetogenesis, methanogenesis. For the production of biogas organic waste from food production, household waste, energy crops, waste from biodiesel production, and waste from agro-industrial production are used.
The paper notes that the choice of organic waste processing technology is based on the selection of the optimal composition of raw materials and parameters (pH, temperature, concentration of trace elements, the ratio between C:N, humidity) of the anaerobic fermentation process.
The quality of raw materials is characterized by a number of factors (humidity, rate of decomposition, degree of decomposition, the presence of nutrient medium for bacteria, biogas yield per unit dry matter, methane content in biogas, the ratio of carbon and nitrogen in raw materials). It is from these indicators that the time of its fermentation, the amount of biogas produced and its composition depend. An important factor influencing the yield of biogas is the ratio of carbon and nitrogen in the processed raw materials, it is advisable to use the following ratios of nutrients C: N = 10:1 or 30:1. It is proposed to use pig manure and waste from sugar and juice production as raw materials.
Animal manure is characterized by a relatively high buffer capacity, contains a number of important macro- and microelements necessary for the metabolism of bacterial populations that cause methane fermentation. The use of beet pulp is a promising option, as it contains carbohydrates that are easily broken down. Studies have shown that the use of beet pulp is possible in the amount of 25% of the total amount of raw materials used. The use of beet pulp and apple pomace for biogas production not only improves the chemical decomposition of raw materials rich in fiber, but also provides a high potential for the use of substrate for biogas production in addition to solar and wind energy. The proposed technological scheme of biogas production from raw materials of combined composition provides for the preparation of process air, preparation of organic raw materials, methane fermentation, purification and storage of biogas.
URI: http://socrates.vsau.org/repository/getfile.php/27573.pdf
Publication type: Статті у зарубіжних наукових фахових виданнях (Copernicus та інші)
Publication: The scientific heritage. Hungary : Budapest, 2020. № 54 (54), vol. I. P. 13-23.
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