دانلود مقاله ISI انگلیسی شماره 58190
عنوان فارسی مقاله

حذف جیوه متصل در شیشه باقیمانده از لامپ های فلورسنت صرف

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
58190 2013 4 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Removal of mercury bonded in residual glass from spent fluorescent lamps
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Journal of Environmental Management, Volume 115, 30 January 2013, Pages 175–178

کلمات کلیدی
لامپهای فلورسنت؛ شیشه باقی مانده؛ حذف جیوه - فرآیند تکان دهنده
پیش نمایش مقاله
پیش نمایش مقاله حذف جیوه متصل در شیشه باقیمانده از لامپ های فلورسنت صرف

چکیده انگلیسی

The current technologies available for recycling fluorescent lamps do not completely remove the phosphor powder attached to the surface of the glass. Consequently, the glass contains the mercury diffused through the glass matrix and the mercury deposited in the phosphor powder that has not been removed during treatment at the recycling plant. A low-cost process, with just one stage, which can be used to remove the layer of phosphor powder attached to the surface of the glass and its mercury was studied. Several stirring tests were performed with different extraction mixtures, different liquid–solid ratios, and different agitation times. The value of the initial mercury concentration of the residual glass was 2.37 ± 0.50 μg/g. The maximum extraction percentage was 68.38%, obtained by stirring for 24 h with a liquid–solid ratio of 10 and using an extraction solution with 5% of an acid mixture prepared with HCl and HNO3 at a ratio of 3:1 by volume. On an industrial scale the contact time could be reduced to 8 h without significantly lowering the percentage of mercury extracted. In fact, 64% of the mercury was extracted.

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