Abstract
The paper presents the results of studies of the technologically significant properties of municipal solid waste (MSW) compost produced by MSW processing enterprises in St. Petersburg (Russia) where the Dano drum process is implemented. The chemical and microbiological composition of compost, as well as heat during ripening, are investigated. The chemical composition of industrial compost produced in St. Petersburg does not make it possible to use it as fertilizers and soil in agriculture. From the microbiological point of view, NSW compost is not dangerous, but the content of indicator groups of microorganisms classifies it as contaminated soil. The heat generation of compost during ripening is uneven - the largest share of heat 78.5% is released in the first year of maturation. In absolute terms, this value is 3250 kJ/kg by dry weight. To ensure the process is carried out during a period when the compost temperature is higher than the ambient temperature, toxic substances must be added to the compost in an amount not more than 400 times the pollutant content in waste of the 4th hazardclass.
Highlights
One of the most important classes of pollutants is polycyclic aromatic hydrocarbons (PAHs)
The paper presents the results of studies of the technologically significant properties of municipal solid waste (MSW) compost produced by MSW processing enterprises in St
The heat generation of compost during ripening is uneven - the largest share of heat 78.5% is released in the first year of maturation
Summary
One of the most important classes of pollutants is polycyclic aromatic hydrocarbons (PAHs). Composting with various organic wastes as a way to neutralize PAHs is widely known. This approach was simulated for composts from silt sediments of sewage [1] soils contaminated with creosote [2] wood of railway sleepers (together with waste from poultry farms and plant biomass) [3].
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