The values of the loads of organic

The values of the loads of organic pollutants and nitrogen forms determined for the ST confirm that the initial aerobic waste treatment has an influence on the rate of leaching of contaminants from landfills (“flattening curves”) and reduces the overall loads of pollutants leached from the waste. The total pollution load washed out over the study period from the ST reactor was lower than from the MSW reactor, respectively:
COD, TOC, BOD5, and VFA: 21, 18, 6, and 23 %,
Total nitrogen and ammonium: 7 and 50 %.
According to a study by Stegman [13], intensive waste composting (16–30 weeks) before disposal to the landfill reduces the emissions of organic pollutants and the production of biogas by 80–90 %, compared to the emission from untreated waste.
The reason for the low degree of reduction in pollutant emissions in leachate and methane production removed from aerobic pretreated waste obtained in the study was that the (5-week) period of aerobic pretreated waste stabilization was too short. In summary, based on the obtained results, it can be concluded that the initial stabilization of waste under aerobic conditions prior to storage significantly reduces the emission of organic pollutants in leachate and biogas. However, 5 weeks aeration of the waste is too short a period to implement the obligations under the Landfill Directive 1999/314/EC on waste landfill after 2013.