e-journal

Vitrification: An alternative to minimize environmental impact caused by leather industry wastes

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Abstract.
The main purpose of this work was the investigation of the immobilization of chromium ion present in
the ash from the incineration of chromium-tanned leather shavings (ACS) by means of vitrified ceramic
bodies. To achieve the immobilization samples were initially produced adding soda-lime glass to ACS.
After that, new formulations were produced with the addition of pure oxides, TiO2 and MgO, to the sodalime
glass and ACS sample. These samples were conformed by pressing and fired in an eletrical furnace,
at temperatures of 750, 800, 950 and 1000 ◦C.
The ceramic bodies were evaluated with respect to their physical properties and mineralogical composition by X-ray diffraction and energy dispersive spectroscopy (EDS) mapping. The chromium immobilization was characterized by leaching tests according to Brazilian Regulations (NBR 10005). The results confirmed the immobilization of the chromium ion within the allowed limits of Brazilian Regulations, NBR 10004 (5 mg/L), with the use of glass and vitrification/densification agents such as titanium and magnesium oxides.

Keywords:
Immobilization
Chromium
Vitrification
Leather
Wastes

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Ketersediaan

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Informasi Detail

Judul Seri

Journal of Hazardous Materials

No. Panggil

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Penerbit

London : Elsevier B.V.., 2009

Deskripsi Fisik

Journal of Hazardous Materials 165 (2009) 604–611

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

LINGKUNGAN HIDUP

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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