فهرست مطالب صادق طالبی

Waste production is a natural consequence of human life and mismanagement of solid waste can result in environmental hazards. Determination of an appropriate location to sanitary landfill site is one of the most common ways to deal with this crisis. The purpose of this research is to find an appropriate location for landfill site in Qorveh city due to its specific location in terms of agriculture and mining.

The research method in this study was descriptive, analytical and quantitative. In order to locate the landfill, firstly effective information layers in landfill site study (land use layer, rivers, roads, conservation areas, soils, groundwater, morphology, …) were identified and developed using the collected data from organizations and information centers. Finally,(GIS), (AHP) and (WLC) were used to integrate the maps.

The Analytical Hierarchy Process is one of the most efficient techniques designed for multi-criteria decision making, as it enables the formulation of complex problems. Due to limitations, appropriate landfill site options were identified using GIS and used as input data for the hierarchical analysis process. Distance from population centers (towns and villages), distance from surface and groundwater sources are the most important indicators.

By combining two methods of multivariate Weighted Linear Combination (WLC) and Analytical Hierarchy Process(AHP) model, the most priority areas were determined with concentration on distance from population centers (towns and villages), distance from surface and groundwater resources,. After extracting the criteria information layers from the maps and prioritizing the 4-storey location ranges, it became clear that the northern direction of Qorveh city with an area of ​​210 hectares is the most suitable area for sanitary landfill of solid wastes.

In recent decades, increasing population, human needs and changing consumption pattern of communities, planning and management of water resources require more attention than before. Groundwater water resource management strategies can be compensated for and exploitation of these resources through artificial recharge of aquifers. According to the overuse of groundwater, artificial recharge and to locate suitable sites for the performance of such projects is very important Therefore, in this study, we tried to integrate GIS and AHP model is the most suitable arena for artificial feeding methods operations in Yazd province were identified. First Data 11 Parameter impressive - slope, geology, thick alluvium, electrical conductivity, land use, water content accessible, portability groundwater, vegetation, hydraulic conductivity and layer away from the river area of study in the areas of GIS were prepared and then using the AHP (the weight) were weighed and then every 11 layers were combined. The results of this study showed that about 41/26% of the total area of the province (around 3690 km2) was diagnosed in terms of carrying out proper nutrition and poor nutrition are about 9 percent for the whole province.

Each patient has renal failure in any dialysis with high water volume, which is in direct contact with the patient's blood. The presence of any chemical and microbial contamination in water used in homodynamic devices can be very dangerous for these patients. The purpose of this study was to determine the efficiency of reverse osmosis open systems in improving the water quality used in the preparation of liquid dialysis.

In this cross-sectional study, a descriptive study was carried out to evaluate the microbial and chemical parameters of the dialysis center of Shahid Beheshti Hospital Qorveh and three times at the end of each season in 1396 on 18 samples including reverse osmosis and the resource is done. The method of conducting the tests from standard book and independent t-test was analyzed for data analysis in SPSS version 20 software.

Reverse osmosis system significantly reduced the amount of sodium, magnesium, calcium, nitrate and sulfate. The average of chemical parameters is significantly less than the standard limit. The results of the test for reverse osmosis efficiency showed that there is a significant difference in water quality before and after the purification system in the hospital...

The average of all compounds measured in two laboratories inside and outside of the province was lower than the standard for evaluation of microbiological and chemical indices. It does not have microbial and non-clinical chemical and is a standard AAMI radar standard.