THE USE OF ORGANIC FRACTION OF SOLID HOUSEHOLD WASTE TO GENERATE ETHANOL AND BIOGAS USING A SIMULATION MODEL


Temirbekova M.N. Temirbekov N.M. Wojcik W. Aliyarova M.B. Elemanova A.A.
2022National Academy of Sciences of the Republic of Kazakhstan

News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2022#2022Issue 1105 - 114 pp.

The paper shows the efficiency of collecting and disposing of biogas at a landfill of solid household waste using a biogas plant of a modernized design. Effective solid waste management involves the use of various approaches, technologies and treatment concepts to ensure the protection of public health and the environment. The optimal mode of processes occurring in a biogas plant is determined by computer modeling. The identification of the parameters of a mathematical model for describing the biochemical processes occurring in a biogas plant has been carried out. Two approaches are used to solve the mathematical model: A finite-difference method for solving a system of differential equations and simulation modeling using the Any Logic package. A computer program has been compiled in the algorithmic language C++. Numerous calculations have been carried out, the results of which are presented in the form of graphs and their qualitative picture is consistent with the ongoing processes. The created computer program allows you to make a preliminary forecast of anaerobic fermentation occurring in the bioreactor, depending on the volume of the substrate, methanogenic microorganisms and temperature conditions. Alternative methods such as pretreatment of solid household waste, fermentation, ethanol fermentation and anaerobic digestion attract increased attention. Using these methods, a liquid with alcohol-containing substances was obtained from 1.6 kg of organic fraction of solid household waste from the landfill, in which the percentage of ethyl alcohol was 98%, and ethanol (95%) was also obtained from 2.3 kg of the model fraction of waste. Therefore, solid household waste can be a viable source of energy, not a source of pollution. Thus, the article considers the possibility of using mathematical simulation of biogas, as well as a qualitative experiment from organic fraction residues and their further conversion into ethanol.

Biogas , Ethanol , Ethanol fermentation , Fermentation , Mathematical modeling , Organic fraction of solid household waste , Simulation modeling , Thermal treatment

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Non-profit Joint Stock Company «Almaty University of Power Engineering and Telecommunications named after Gumarbek Daukeev», Almaty, Kazakhstan
National Engineering Academy of the Republic of Kazakhstan, Almaty, Kazakhstan
Department of Electronics and Information Technology, Lublin University of Technology, Lublin, Poland

Non-profit Joint Stock Company «Almaty University of Power Engineering and Telecommunications named after Gumarbek Daukeev»
National Engineering Academy of the Republic of Kazakhstan
Department of Electronics and Information Technology

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