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      • Open Access Article

        1 - Implementation of Green Library Component in Iranian academic libraries
        Fatemeh Rezaeimanesh mohsen Haji Zeinolabedini Amir Reza Asnafi
        The purpose of this study was to identify the status of green library components in the central libraries of the target community, clarify the role of libraries in implementing the culture of a green community and provide solutions and strategies to fill existing gaps More
        The purpose of this study was to identify the status of green library components in the central libraries of the target community, clarify the role of libraries in implementing the culture of a green community and provide solutions and strategies to fill existing gaps and implement a green library. The research method is survey-descriptive. The statistical population includes the libraries of level one universities of the Ministry of Science, Research and Technology and the Ministry of Health, Treatment and Medical Education in terms of space, equipment and manpower. A researcher-made questionnaire was used to collect data. Then the data obtained were analyzed at the level of descriptive statistics with SPSS software and by calculating the mean, standard deviation, absolute frequency and frequency percentage. The research findings showed that the central library of level one university of the Ministry of Science, Research and Technology and the Ministry of Health, Treatment and Medical Education are not in a good condition due to the green components and the standard lead. To have a green academic library, one should start by promoting green thinking and culture in the society, because many of our problems in this field are rooted in culture and misuse of natural and non-renewable resources. The results of the present study can inform libraries about their current situation that how they are far from the ideal situation and use the strategies presented in this study to implement a green library to have a green academic library. We do not necessarily have to start with a green building, these libraries have green missions and they can be known as the green library by implementing several green components in their library. Manuscript profile
      • Open Access Article

        2 - Removal of lead with metallic organic nanostructures of iron and benzene tricarboxylate from aqueous solution
        reza alizadeh
        Heavy metals are not chemically degraded, in order to prevent the entry and accumulation of this toxic pollutant along with factory effluents into the environment, so far, different methods have been used, but finding new methods with more efficiency in this area is nec More
        Heavy metals are not chemically degraded, in order to prevent the entry and accumulation of this toxic pollutant along with factory effluents into the environment, so far, different methods have been used, but finding new methods with more efficiency in this area is necessary. In this research, a new class of compounds called organic metallic materials has been used to remove industrial effluent lead. These organic metallic materials contain iron and benzene tricarboxylate. To identify the characteristics of these materials, electron microscope images and Nitrogen adsorption and desorption isotherms has been used. To determine the optimal conditions for using these materials for lead removal from the effluent, the effect of parameters: time (10-120 min), the amount of adsorbent (0.2-0.5 mg/L), pH (3.5 -12.5) and temperature (10-75 ° C) were evaluated. The results show that the composition of MIL-100 (Fe) has a better performance than the other materials in this study and complete removal of lead was achieved with an initial concentration of 10 mg/l and an adsorbent dose of 0.25 mg / l, at a temperature of 50 ° C, pH =4.3 and contact time of 120 min. Other properties of this material in removal of industrial effluent lead such as magnetic properties, reusability in five consecutive periods, large surface area, low cost, high efficiency and easy to use, make it an ideal option for large-scale use. Manuscript profile
      • Open Access Article

        3 - 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