Modeling of pollution propagation processes during dry cargo ship accidents

Abstract

Pollution occurring with dry cargo ships can be accompanied by serious environmental consequences. At the same time, the object of the analysis was accidents with dry cargo ships carrying technical salt. Their consequences may be associated with the dissolution of salt in a river reservoir, the formation of impurities and their interaction with background pollutants. As a consequence, this can lead to increased corrosion of water intake structures, an increase in possible environmental losses. This work is a continuation of the authors' work related to the spread of pollution from transport accidents on inland waterways, assessment of the environmental risk of such accidents. All this suggests the need to model the processes of the spread of pollutants in predicting the consequences of such accidents. In this work, a site was selected in the area of 911 -913 km of the Volga River. Modeling was carried out using the FlowVision software package. The article shows the stages of the simulation of the pollution propagation process taking into account the speed of the river flow, the diameter of the pollution particles and chemical reactions occurring when the cargo enters the water. The areas of concentration of pollution deposits have been identified, which will allow in the future to propose an optimal scheme of the site for improving its ecology, as well as to clarify the methodology of predicted environmental damage