S26 : Investigation on the Amount of Pollution of Heavy Elements in Around Soils of Esfarayen Piping Company
Thesis > Central Library of Shahrood University > Agricultural Engineering > MSc > 2011
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Abstarct: Esfarain city is located at Northern Khorasan province, north east of Iran. Esfarain area is 5345 km2. It has a mounatainous temperate climate with annual temperature and average rainfall 14.5 degree of centigrade and 190 mm, respectively. Esfarain piping factory located in Ruien village that its area is 210 ha. This company provides casing , tubing, coupling steel pipes and operation finishing for use in oil and gas wells and petrochemistry. In fact, with the beginning of industrial practice in a complex, pollutants are released in solid, solution and gas forms to environment that pollutant type depend highly on quality and action quantity of the factory activities. In this research, the concentration of heavy mextals in soil was examined to evaluate the role of piping factory as an pollutants source in the environment. To catch this goal, 40 soil samples were accidentally collected from topsoil surrounding of the factory in the depths of 0-15Cm and 15-30Cm. After analyzing some soil physical and chemical properties, the concentration of some chemical elements were measured by ICP spectroscopy. For interpretation of the changes in mextals amounts, different standards and geochemical factors such as enriched factor were also used. The GS+5.1 were used to show the pollution of each element and to compared with other areas. The results of soil analysis showed that concentrations of arsenic and nickel around of piping factory are more than the allowable limitation. In point 20, the concentration of Cu, Mn and Fe was more than the allowable limitation that it was because of lower situation of point 20 whit as compared to the other points and therefore runoff collected after raining. baxsed on calculated Enrichment factor, Ti hasn’t Enrichment, Mo, Cu, Ni, Co, Th, V, La, Cr, Ba, Sc and Ga have little Enrichment, Mn, Sr and Fe have a medium, Pb and Zn have slightly high Enrichment, Cd and Ca have high Enrichment and As shows severely high Enrichment. In brief, the results of this study showed the pollution origin is as a result of anthropogenic effects of the heavy mextals in the soils around the factory.
Keywords:
#Esfarain piping factory #anthropogenic pollution #heavy mextals #soil Link
Keeping place: Central Library of Shahrood University
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Keeping place: Central Library of Shahrood University
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