• OpenAccess
    • List of Articles فلزات

      • Open Access Article

        1 - The Use of Microorganisms In Bioremediation Of Heavy Methals In Soils
        jina tanzadeh Mohammad panahandeh
        Bioremediation is an promising and available new technique for removal and recovery of heavy metals in contaminated land and waters. These microorganisms developed Different detoxifying mechanisms such as bioaccumulation, biosorption, biomineralization and biotrans More
        Bioremediation is an promising and available new technique for removal and recovery of heavy metals in contaminated land and waters. These microorganisms developed Different detoxifying mechanisms such as bioaccumulation, biosorption, biomineralization and biotransformation.The food and water we consume are often pulluted very of chemicals and heavy metals, such as gold,copper ,nickel, zinc, cadmium, arsenic, lead, chromium, and mercury that are associated with very diseases.Some studies described microorganism able to bioremediation heavy methas. Among others some of the microorganisms that play great role in bioremediation of heavy metals are Pseudomonas spp ,Corynebacterium spp ,Bacillus spp Arthrobacter spp, Alcaligenes spp, Rhodococcus spp, Flavobacterium spp, Nocardia spp, Azetobacter spp, Methosinus, Phormidium valderium. Manuscript profile
      • Open Access Article

        2 - Examining the amount of cadmium and lead in the soil downstream of Taybad landfill
        akram ghorbani Mohammad ghafori Mohammad javad alipoor
        The aim of this study was to investigate the emission of heavy metals (cadmium and lead) in the soil around Taybad landfill. For this purpose, 15 stations at a distance of 100 meters from each other to the landfill of Taybad city were selected for sampling. Sampling 5 s More
        The aim of this study was to investigate the emission of heavy metals (cadmium and lead) in the soil around Taybad landfill. For this purpose, 15 stations at a distance of 100 meters from each other to the landfill of Taybad city were selected for sampling. Sampling 5 samples and repeating 3 times from each station, the samples were transferred to the laboratory for analysis to check the level of pollution indicators. Hypotheses were analyzed using one-sample t-test and Pearson's correlation coefficient with spss 24 software. It was found that the average total concentration of lead is equal to 52.04 and the average total concentration of cadmium is equal to 1.748. The concentration of the mentioned metals is significantly higher than the average global soil and earth's crust with 95% confidence. In the case of lead and cadmium, the highest contamination was in station 10 and 4, and the lowest contamination was in station 6 and 12, respectively. It is concluded that the amount of soil contamination does not change significantly with increasing distance, because the volume and concentration of contaminant runoff from the landfill (contaminant) along the path is constant. Therefore, it is better to provide environmental training for municipal municipal personnel and citizens of the region and to invest in the restoration of the environment and its further protection. Manuscript profile