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Westerwald

Dioxins are mainly by-products of industrial processes, but can also result from natural processes, such as volcanic eruptions and forest fires. Besides the anthropogenic (man-made) sources of PCDD/F discussed earher, biogenic and geogenic sources for dioxins also have been discovered recently. In natural clays of the kaohnite-type found in German mines in Westerwald, considerable levels of PCDD / F have been detected the same findings were obtained in special ball clays in the Mississippi area of the United States. The pattern (isomeric ratios) of this natural type of dioxins is different from the pattern obtained from incineration plants. [Pg.175]

In 1999 I visited the Westerwald, an area in Germany with approximately 25 clay quarries, which is discussed in chapter 12. In one of these quarries I received documentation on analysis data of 28 different clay types which can be supplied. In the table below the analyses of three of those types are presented to give you an impression of the large variety in composition and properties. [Pg.122]

Westerwald, an area in Germany with lots of ceramics ( ) Ceramic screwdriver ( ) Musical instruments made of clay Ceramic chalk... [Pg.296]

Important European kaolin and clay deposits are found in the Federal Republic of Germany (Oberpfalz, Westerwald, Saxony), England (Cornwall, Devon), in the Czech Republic (Bohemia) and in Spain (Galicia). [Pg.446]

Manufacturer Vereinigte Fullkorperfabrik GmbH u. Co., Baiimbach/Westerwald... [Pg.517]

Vallendar Clay. A clay from Westerwald, Germany. The best known grade is that used in the vitreous enamel industry a quoted analysis is (%) S1O2, 54 AI2O3, 35 Fe203,0.8 alkalis, 1.8 loss-on-ignition, 8.3. [Pg.343]

Westerwald Clay. A refractory clay occurring in an area east of the Rhine between Coblenz and Marburg. These clays are of Oligocene origin and vary widely in composition from highly siliceous to clays that contain (raw) over 35% AI2O3. [Pg.354]

Beck R. Ein neues Verfahren zur Berechnung von Fiillkorperkolonnen. Published by VFF, Rans-bach/Baumbach, Westerwald (1969)... [Pg.23]

Technical information of the company VFF - Vereinigte FullkOrperfabriken. Ransbach + Baum-bach/Westerwald... [Pg.245]

See other pages where Westerwald is mentioned: [Pg.163]    [Pg.589]    [Pg.297]    [Pg.297]    [Pg.298]    [Pg.232]    [Pg.107]    [Pg.118]    [Pg.467]    [Pg.163]    [Pg.589]    [Pg.297]    [Pg.297]    [Pg.298]    [Pg.232]    [Pg.107]    [Pg.118]    [Pg.467]   
See also in sourсe #XX -- [ Pg.297 ]



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THE WESTERWALD IN GERMANY

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