Predicting the spread of harmful substances in a water body during bulk discharge of untreated wastewater using mathematical modeling methods

Abstract

The issues of environmental safety as a result of the development of industrial enterprises are always very relevant. Development of technologies, application by industrial enterprises of various types of equipment in the technological process causes a real threat of pollution of water bodies with wastewater, which contains harmful and dangerous substances. This in turn can cause enormous damage to the flora and fauna of water bodies. Therefore, it is very important to determine the possible consequences of man-made emergencies, which will allow to provide the required protection measures and reduce the likelihood of pollution of the environment, in particular water bodies. For this purpose, various methods of mathematical modeling are used. Mathematical models with a certain error allow simplified description of water flow movement. Some of the basic mathematical models of the structure of flows are considered. It is shown on the basis of what criteria the choice of one or another model is made. The method of calculation of concentrations and residence time of harmful substances in a certain area of water space at volley discharge of untreated wastewater is presented.