کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9674268 | 1453202 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Kinetic study of the immobilization of galvanic sludge in clay-based matrix
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Kinetic study of the immobilization of galvanic sludge in clay-based matrix Kinetic study of the immobilization of galvanic sludge in clay-based matrix](/preview/png/9674268.png)
چکیده انگلیسی
The viability of inertization of galvanic wastes through their incorporation in clay-based materials, such as common formulations for tiles and bricks, is here studied by determining the leaching kinetics in different media. Metals immobilization is assured by firing at reasonably high temperatures, since intimately contact and/or reaction between residue and clay particles is promoted but also due to formation of insoluble metal oxides that rest unreactive towards clay grains. For most metals, leaching rate follows a zero-order kinetic law, with values between 0.001 to 0.1 mg/(g day cm2). Leaching velocity tends to increase with rising atomic numbers: Zn < Cu < Ni < Cr. These values depend exponentially on the relative sludge content.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 121, Issues 1â3, 20 May 2005, Pages 69-78
Journal: Journal of Hazardous Materials - Volume 121, Issues 1â3, 20 May 2005, Pages 69-78
نویسندگان
Jorge M. Magalhães, João E. Silva, Fernando P. Castro, João A. Labrincha,