"écume des écumes" are abbreviated to EDE

see
http://www.alsaaluminiumcanada.com/alsa_fr.asp?no=1(French)
http://www.alsaaluminiumcanada.com/alsa_en.asp?no=139(Englis...

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Note added at 20 hrs (2010-03-05 06:19:43 GMT)
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Sorry it's not internet playing up - I omitted to leave a space after the links :
French : http://www.alsaaluminiumcanada.com/alsa_fr.asp?no=1
English : http://www.alsaaluminiumcanada.com/alsa_en.asp?no=139

By the way, for an example of use see :
"Aluminium recycling and environmental issues of salt slag treatment"
http://cat.inist.fr/?aModele=afficheN&cpsidt=17143056
"Salt slags are the byproducts of the secondary aluminium industry ... Recycling the scraps with lower recyclability normally generates more salt slags. High slag viscosity leads to more fine aluminum metal entrapped in the salt slag and thus increases the load of salt slag recycling ... The elevated carbon content in the scrap resulted in more carbide formation in salt slag and thus more methane generation in salt slags recycling with a higher environmental impact".