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context |
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valorisation |
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principle |
qualification |
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| The vitrification principle | |||||||||||||||||||||||||||||||||||||||||
| The vitrification consists in waste heating and processing until their melting point ( usually up to 1400 ° C). The high-temperature melting of the characteristic waste components and other additional ones leads to the physico-chemical fixation of the polluting products in glassy matrix. | |||||||||||||||||||||||||||||||||||||||||
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A vitrified waste can be defined as follows: " a solid obtained by cooling of an overmelted liquid and likely to contain relatively significant proportion of crystallized phases. The proportion between the glassy and crystallized phases depends on the composition and the cooling method of the liquid". |
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