DEPENDENCE OF THE LEVEL OF BIOLOGICAL POLLUTION OF THE SOIL ON THE DISTANCE TO SOLID MUNICIPAL WASTE LANDFILL
Keywords:landfill, dump site, solid municipal waste, bacteriological pollution, regression analysis
In recent years the total area of solid municipal waste landfills and dump sites, including overloaded ones, which violate the norms of ecological safety and are the objects of the intensive ecological loading, threatening the pollution of the environment with microorganisms (colibacilli bacteria,streptococci, staphylococci and ascarids), causing bacteriological pollution of soils has considerably grown. Determination of the regression dependence of the level of bacteriological pollution of the soils on the distance to solid municipal landfill is an important scientific engineering problem. Aim of the research is to determine the regression dependence of bacteriological pollution level of the soils on the distance to the solid municipal waste landfill. In the process of the research the method of the regressive analysis of the results of single-factor experiments and other paired dependences with the selection of the best type of the function from sixteen most widely-spread variants by the criterion of the maximum value of the correlation factor is used. Regression was performed on the base of the linearized transformations, which enable to reduce the non-linear dependence to linear one. Determination of the regression equations coefficients was carried out, applying the method of the least squares by means of the developed computer program "RegAnaliz", protected by the Certificate of the State Registration of the rights to the copyright object. Adequate regression hyperbolic dependence of bacteriological pollution level of the soil on the distance to the solid municipal waste landfill is obtained, the dependence is used for the determination of the safe distance for SMW landfill location from agricultural soil by the index of biological pollution level. Graphic interpretation of the dependence of biological pollution level of the soil on the distance to the solid municipal waste landfill is constructed, it enables to illustrate the given dependence and show the sufficient coincidence of the theoretical results with actual results on the level of 0.99535.