کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7478356 1485209 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Leaching and geochemical behavior of fired bricks containing coal wastes
ترجمه فارسی عنوان
اشباع و رفتار ژئوشیمیایی آجرهای آتش نشانی که شامل ضایعات زغال سنگ هستند
کلمات کلیدی
مدیریت زباله، زباله های زغال سنگ، آجر آتش نشانی، ارزیابی اشباع، رفتار ژئوشیمیایی، فلزات سنگین، متالوئید،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
High amounts of mine wastes are continuously produced by the mining industry all over the world. Recycling possibility of some wastes in fired brick making has been investigated and showed promising results. However, little attention is given to the leaching behavior of mine wastes based fired bricks. The objective of this paper is to evaluate the geochemical behavior of fired bricks containing different types of coal wastes. The leachates were analyzed for their concentration of As, Ba, Cd, Co, Cr, Cu, Mo, Ni, Pb, Zn and sulfates using different leaching tests; namely Tank Leaching tests (NEN 7375), Toxicity Characteristic Leaching Procedure (TCLP) and pH dependence test (EPA, 1313). The results showed that the release of constituents of potential interest was highly reduced after thermal treatment and were immobilized within the glassy matrix of the fired bricks. Moreover, it was also highlighted that the final pH of all fired samples changed and stabilized around 8-8.5 when the initial pH of leaching solution was in the range 2.5-11.5. The release of heavy metals and metalloids (As) tended to decrease with the increase of pH from acidic to alkaline solutions while Mo displayed a different trend.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Management - Volume 209, 1 March 2018, Pages 227-235
نویسندگان
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