Application of system dynamic model for the composting of petroleum contaminated soil under various policies
Riga Technical University, Institute of Environment and Energy Systems,Kronvalda bulvāris ¹, LV-¹0¹0 Riga, Latvia;
In this paper the dynamic model for the composting of contaminated soils withpetroleum products is presented. The main objectives of this study is to gain a deeperunderstanding about the dynamic relations between composting process and demand in themarket and to determine how different policies will influence the model and therefore the totalamount of recycled contaminated soil. The methodology applied consists of a system dynamicmodel, which describes the relationships between the cause and effect in complex and dynamicsystems that have delays, feedbacks and non-linearities. The developed model passed both thebehaviour validity and the tests of behavioural sensitivity. The validation indicated that themodel is capable of generating ‘the right behaviour for the right reasons’. This paper shows theresults of four various policies (including reference scenario) and sensitivity analysis. Theresults of the research indicate that the most sensitive parameter is the volume available forcomposting, which is the main factor that influences the amount of recycled material.