حذف سرب و مس از محلول آبی با استفاده از پرتو گاما و نانو ذره دی‌اکسیدتیتانیوم

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد گروه علوم و مهندسی خاک، دانشکده کشاورزی، دانشگاه زنجان، زنجان، ایران.

2 استادیار گروه علوم و مهندسی خاک، دانشکده کشاورزی، دانشگاه زنجان، زنجان، ایران.

3 استادیار پژوهشکده کشاورزی هسته ای، پژوهشگاه علوم و فنون هسته ای، سازمان انرژی اتمی ایران، کرج، ایران.

چکیده

امروزه پرتوهای یون‌ساز مانند پرتو گاما برای حذف آلاینده‌های آلی و معدنی از پساب و لجن فاضلاب استفاده می‌شود. هدف از این پژوهش بررسی تاثیر اشعه گاما و نانو‌ذره دی‌اکسیدتیتانیوم بر غلظت سرب و روی محلول آبی در pH‌های مختلف بود. برای این منظور اثر اشعه گاما در 4 سطح (0، 4، 8 و 16 کیلوگری) و دی‌اکسیدتیتانیوم در سه سطح (0، 2 و 4 گرم بر لیتر) با متانول و بدون متانول 10 درصد در محلول‌های آب با pH‌های مختلف (2، 4 و 6) بر غلظت عناصر سرب و مس بررسی شد. آزمایش به‌صورت فاکتوریل در قالب طرح کاملاً تصادفی اجرا شد. نتایج نشان داد با افزایش pH غلظت سرب و مس محلول کاهش یافت. غلظت مس در سطح pH شش، پرتو 16 کیلوگری و سطح چهار گرم بر لیتر بدون متانول دی اکسید تیتانیوم کاهش بیشتری داشت، غلظت سرب محلول در سطح pH شش و سطح پرتو 16 کیلوگری و سطوح دو و چهار گرم بر لیتر دی‌اکسیدتیتانیوم (بدون متانول و با متانول) کاهش بیشتری داشت. دی‌اکسیدتیتانیوم بیشترین و پرتو گاما کمترین تأثیر در حذف مس و سرب از محلول آبی را نشان داد.

کلیدواژه‌ها

عنوان مقاله [English]

Removal of Lead and Copper from Aqueous Solution Using Gamma Rays and Titanium Dioxide Nanoparticles

نویسندگان [English]

  • arezo atashbar 1
  • mohammad babaakbari 2
  • ebrahim moghiseh 3
  • setare amanifar 2
1 M.Sc. Student, Department of Soil Science, College of Agriculture, University of Zanjan, , Zanjan Iran
2 Assistant professor, Department of Soil Science, College of Agriculture, University of Zanjan, Zanjan, Iran.
3 Assistant professor, Nuclear Agriculture Research School. Nuclear Science and Technology Research Institute,Karaj, Iran
چکیده [English]

Nowadays ionizing beams such as gamma rays are used to remove organic and inorganic contaminants from wastewater and sewage sludge. The objective of this study was to investigate the effects of gamma rays and titanium dioxide nanoparticles on the concentration of lead and zinc in aqueous solution at different pH. For this purpose, the effect of gamma rays at 4 levels (0, 4, 8 and 16 kGy) and chemical modifier of titanium dioxide at three levels (0, 2 and 4 g.l-1) with 0 and 10% methanol in water solutions with different pH (2, 4 and 6) on the removal of Pb and Cu were investigated. The experiment was performed as a factorial in a completely randomized design. The results showed that the lead and copper concentrations decreased with increasing pH. The concentrations of copper at pH level of six, 16 kGy of gamma radiation and the level of 4 g.l-1 of titanium dioxide (without methanol) decreased more. The concentration of lead at the level of pH six and 16 kGy of gamma radiation and levels of 2 and 4 g.l-1 of titanium dioxide (without methanol and with methanol) had a further decrease. Titanium dioxide showed the highest effect and gamma ray had the lowest effect on the removal of copper and lead from aqueous solution.

کلیدواژه‌ها [English]

  • "Gamma ray". "Chemical modifier'
  • 'Irradiation"
  • 'Titanium dioxide" ."Wastewater"

مراجع

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تحقیقات آب و خاک ایران
دوره 51، شماره 12
اسفند 1399
صفحه 2975-2985

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