Adsorptive Vorreinigung von Sickerwasser mit Braunkohlenkoks auf der deponie der Stadt Köln Vereinigte Ville
1990
The Cologne municipal authorities use the pit of a former opencast lignite mine as a refuse dump for industrial waste, sewage sludge and inert materials. Since 1985, approx. 600 m 3 of seepage have been removed by truck every day , destined for treatment in municipal sewage works. On the basis of preliminary experiments, a method of adsorptive pre-treatement was used which employed specially treated lignite coke in fixed-bed adsorbers
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