[Trace metals in sewage sludge. Regional survey (author's transl)].
A regional survey of sewage sludge compositions was conducted in the Rhein-Sieg-Kreis, including the city of Bonn. Sludge samples were obtained from 28 treatment plants. The following metals and metalloids have been measured by AAS: Fe, Zn, Cu, Cr, Ni, Pb, Cd, Hg, As, Se. The concentrations of some trace metals were extremely high, in particular the toxic element Cadmium. Sources of environmental pollutions can be revealed by analysing sludge constituents.
D002104:Cadmium / Q000032:analysis; D002857:Chromium / Q000032:analysis; D003300:Copper / Q000032:analysis; D005860:Germany, West; D007854:Lead / Q000032:analysis; D009532:Nickel / Q000032:analysis; D012722:Sewage / Q000032:analysis*; D014131:Trace Elements / Q000032:analysis*; D015032:Zinc / Q000032:analysis
D012722:Sewage; D014131:Trace Elements; D002104:Cadmium; D002857:Chromium; D007854:Lead; D003300:Copper; D009532:Nickel; D015032:Zinc
Schwermetalle im Klärschlamm. Ein regionaler Uberblick.