کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4487473 1317031 2005 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Submarine tailings placement by a copper mine in the deep anoxic zone of the Black Sea
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Submarine tailings placement by a copper mine in the deep anoxic zone of the Black Sea
چکیده انگلیسی
Copper mine tailings are discharged to the anoxic zone of the Black Sea at 350 m depth, and there is currently consideration of reducing this discharge depth. Oceanographic sampling has provided data allowing calculating whether dilute buoyant plumes will separate from the tailings density current as predicted. Calculations for various discharge rates and slurry dilutions indicate that such plumes will rise ∼89 m above the discharge depth, hence will remain in the deep anoxic zone below the permanent pycnocline at ∼150 m depth at both the present and currently proposed sites. There is some indication from relative seawater density measures that these plumes will drift rather than spreading diffusely. Plume separation from controlled discharges of the tailings slurry was confirmed by visual observations in an experimental tank. The oceanographic sampling also showed that trace element levels in the seawater by the discharge point remained below Turkish marine receiving water quality criteria.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Water Research - Volume 39, Issue 20, December 2005, Pages 5005-5016
نویسندگان
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