مرتضی کاشفی الاصل Articles List

List of Articles مرتضی کاشفی الاصل

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1 - Using amberlite XAD-4 to absorbtion of heay metals Co and Cu from Caspian Sea's water samples
M. Kashefi Asl N. Soofi

Water pollution by heavy metals causes serious ecological problems in the world. Therefore, today determination of heavy metals such as Co and Cu in the environmental samples is required. Amberlite XAD-4 (polystyrene-divinylbenzene polymer) is a frequently used resin in More

Water pollution by heavy metals causes serious ecological problems in the world. Therefore, today determination of heavy metals such as Co and Cu in the environmental samples is required. Amberlite XAD-4 (polystyrene-divinylbenzene polymer) is a frequently used resin in analyses methods, thanks to its good physical and chemical properties, such as porosity, high surface area, durability and purity. In this study, Co and Cu ions were adsorbed during passage through amberlite XAD-4 resin. Also the influence of pH was studied and the best pH for this study was between 6 and 7.5 with a recovery of higher than 90%. The proposed procedure was applied for Co and Cu determination by Flame Atomic Adsorption Spectroscopy (FAAS) in natural water samples. The achieved recovery and its standard deviation, measured by standard addition technique showed that the proposed procedure had good accuracy, enrichmant factor, preconcentration factor and simplicity. Manuscript profile
Open Access Article
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2 - Environmental effluent indicators of Isfahan Steel Company
B. Sadri Lonbani R. Mogouei M. Kashefialasl

Content and procedures: Through an analytical study, twelve samples from the sewage water of Mobarake Steel Company taken 1392 have been studied and the level of pollutants in them identified and analyzed. The treatment method and technology used for these samples has a More

Content and procedures: Through an analytical study, twelve samples from the sewage water of Mobarake Steel Company taken 1392 have been studied and the level of pollutants in them identified and analyzed. The treatment method and technology used for these samples has also been studied and based on the study a new process with more prevalent technology (BAT) has been recommended. The findings and analyzed using the SPSS software and the pollutant levels compared to the allowed standards. Findings and results: According to the results of the BOD5 testing and the temperature of the twelve comparison, the levels of manganese and phosphate contain the highest amounts of controlled substances, in particular in one third of the samples (4 out of the 12) the level of these two substances was higher than the permitted level. Also the nitrite and iron levels in one fourth of the samples (3 out of 12) were higher than the permitted level. The levels of the BOD, pH and TDS in one sixth of the samples (2 out of 12) were also higher than the permitted level. Given the scarcity of water in Esfahan and the agriculture fields in close vicinity of Esfahan’s Steel Company, the use of the sewage water from the steel industry is unavoidable and considering the number of samples with higher than standard levels of unpermitted substances, the use of the exit sewage water for agricultural purposes with the current standards should not be permitted and it is necessary to upgrade the treatment facilities of this company. Manuscript profile

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List of Articles مرتضی کاشفی الاصل