RESEARCH OF SORPTION OF COMPOSITES BASED ON MUNICIPAL SOLID WASTE AND BIOMASS

Abstract. Municipal solid waste disposal is one of the main problems worldwide. Among the technologies for the energy use of municipal solid waste, the most common and one of the most efficient is the tech-nology of incineration of this waste in cogeneration plants for the production of electricity and heat. The production of highly effi-cient composite fuels based on municipal solid waste is of considera-ble scientific interest because it requires the development of appro-priate energy-saving technologies. The creation of fuels based on municipal solid waste and biomass allows to reduce CO2 emissions during combustion. When incinerating municipal solid waste with high humidity, most of the energy will be spent on drying it. There-fore, it is advisable to dry solid waste. However, the drying stage is characterized by high energy consumption. Therefore, the paper first considers the study of sorption of fuels based on municipal solid waste and biomass. Sorption studies make it possible to determine the equilibrium moisture content to which drying should be carried out and will further reduce energy consumption for the process. The study to determine the equilibrium moisture content of composite fuels depending on the relative humidity of the air used the Van Bamelen strain (static) method. As a result of the research, it was determined that the moisture content of the fuel does not exceed the standard. At the same time, it was found that the addition of a large amount of polyethylene reduces the equilib-rium humidity. Storage of the composite at a relative humidity of 60 % for fuel composition 1 with a polyethylene content of 40 % is 4.5 %; for fuel composition 2 – 4.9 %; for fuel composition 3 – 6.3 %. Bibl. 30, fig. 5, tab. 2.