Published in Scientific Papers. Series A. Agronomy, Vol. LXVIII, Issue 2
Written by Dragoș MANEA, Eugen MARIN, Dragoș-Nicolae DUMITRU, Alin HARABAGIU
The mobile equipment developed and tested by INMA Bucharest performs sustainable in-situ soil bioremediation, including a dosing device for biocomposites obtained from recycled resources, based on slag, dolomite, grape marc and wine yeast. The optimization consisted in determining the optimal combination between the speed of the biocomposite dosing devices and the working speed of the equipment. To simulate the dosing and distribution process of biocomposite materials, Altair EDEMTM software, was used. In order to validate the theoretical simulation method, the results obtained from the simulation were compared with the experimental results which was carried out according to SR ISO 5690-2:1995. The relative error between the results obtained by simulation and experimental had small values and it could be concluded that the theoretical simulation method has a good predictive capacity. The quantities of biocomposite that the equipment can distribute per hectare at two working speeds indicated in the current regulations were calculated and the optimal combination between the speed of the dosing devices (28 rpm) of the biocomposite materials and the working speed of the equipment (1.5 m/s) was determined.
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