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Czasopismo
2014 | 12 | 7 | 763-768
Tytuł artykułu

New vitreous matrix for chromium waste immobilization

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Common waste glasses (window, bottle glass or tableware) with fly ash form a glass matrix for chromium waste immobilization. Soluble chromium from residual waters was adsorbed on fly ash; the resulting solid contained 23.7% Cr6+. The three glass wastes, chromium-containing fly ash, and borax were used to make glasses in weight ratios waste glass: borax: fly ash of 1: 1: 1 and 1.5: 0.5: 1. The hydrolytic stability ranged from 18.46 to 28.13 µg g−1 soluble Na2O, qualifying them in the HGB1 class. The chemical stability, characterized by the dissolution rate, was 0.011–0.077 µg cm−2 h−1, depending on the glass composition and the aggressive medium pH. The chromium leachability is influnced by the glass composition and the pH of the leaching solution, ranging between 0–0.015% of the total chromium. Chromium waste vitrification is a viabile solution with multiple economic advantages.
Wydawca

Czasopismo
Rocznik
Tom
12
Numer
7
Strony
763-768
Opis fizyczny
Daty
wydano
2014-07-01
online
2014-04-30
Twórcy
autor
  • Politehnica University Timisoara
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-014-0509-3
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