کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6972135 | 1453098 | 2013 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A new approach to determine the phosphogypsum spread from the deposition site into the environment
ترجمه فارسی عنوان
یک رویکرد جدید برای تعیین فسفو گپس از محل رسوب به محیط زیست پخش شده است
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کلمات کلیدی
فسفوگلیپس، مدل، انتشار دائمی، مهاجرت، رادیواکتیویته،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
چکیده انگلیسی
Phosphogypsum (PG), a waste product in phosphate fertilizer production, is characterized by technically enhanced natural radioactivity. The presented investigation was performed on a PG deposition site in Croatia. A new approach in the determination of the spread of PG particles from the deposition site into the environment based on the PG particle radioactivity measurements is suggested and explained. The stationary diffusion model was assumed and employed to describe long term PG particle transfer into the surroundings. The advantage of this method is that it requires a minimal number of measurement locations and offers a realistic and reliable distribution of PG particles. The mass concentration of PG particles decreased to the distance of about 3Â m, at most up to 10Â m from the deposition site edge. The results indicate that a unique mechanism of particle transport exists and the migration of PG particles by surface water is the dominant way of their spread. The particle current deduced from the measurements was very low, approximately 4.05Â ÃÂ 10â2Â kg/h, and the migration coefficient was approximately 1.69Â ÃÂ 10â5Â m2/h. The obtained results confirmed the initial hypothesis of the stationarity of the migration process, reached within about 6 years.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 261, 15 October 2013, Pages 584-592
Journal: Journal of Hazardous Materials - Volume 261, 15 October 2013, Pages 584-592
نویسندگان
Tomislav Bituh, Zlatko VuÄiÄ, Gordana MaroviÄ, Ivica PrliÄ,