FEATURES OF THE MORPHOLOGICAL COMPOSITION OF MUNICIPAL SOLID WASTE LANDFILLS IN THE MOSCOW REGION

Based on the analysis of literature sources, as well as official government Internet resources, the data were obtained about the volume of waste arriving at landfills in the Moscow region. In addition, the information presented in the studied sources reveals the average morphological composition, factors influencing its individual components, mechanisms of decomposition of organic matter and its impact on the environment. Using the data obtained during engineering surveys for the remediation of several landfills in the Moscow region, this article investigates the morphological composition of waste based on geographic location, age, closure date of landfills, and changes in component ratios with depth. The study reveals that up to 60% of landfill consists of organic fractions, their content being higher in landfills younger than 50 years and in the upper layers. Organic matter is replaced by solid particles within a 15-meter interval, with the highest processing of food waste having been noted at a depth of abount 5 meters. Other relatively inert fractions undergo crushing and gradually transform into screenings, constituting an average of 40-45%.