Investigation ecological effects of waste disposal site of Nahavand city on semi karstic springs whit emphasis of Hydro geochemistry

The production of waste has caused environmental crises that have put the life of the planet in serious trouble; Waste disposal site is important in this time. Aime of this study Investigation ecological effects of waste disposal site of Nahavand city on semi karstic springs whit emphasis of Hydro geochemistry by method of experimental-survey. In the first step visit case study and determined local of sampling, then provide document and collected water sample of chemical and microbial to gather experts. Results of this study indicated have not relationship between concentrations of elements; concentration of Hg and Pb more increased due to nearest to landfill (200 m). Due to fact that the rock bottom is a volcanic rock of the oven and Limestone, and such stones have a significant non-resilient erosion and significant permeability, Have an inappropriate capacity for waste disposal, according to the meteorological data for the dominant wind of the study area, is the northwest and the west wind dominates, and as part of the city of Nahavand and the villages surrounding the suggested landfill area along the west The area under study will not be safe from the effects of unpleasant smell of landfill; The current burial ground is located almost on the natural drainage route, which makes the site ineligible for hydro geological purposes for landfill. suggested area has low capacity for waste disposal in terms of environmental permeability. results of chemical and microbiological tests indicated polluting springs. So, recommended studied sit selection for suitable areas.