3R process, an element in toxic material reduction during refuse incineration

In the operation of refuse incineration plants, the disposal of raw materials without causing damage after the flue gas cleaning process is becoming more and more important. This applies especially to mobile heavy metals. For some time the Nuclear Research Center at Karlsruhe has been developing the so-called '3R' process (3R=Rauchgas-Reinigung mit Rueckstandsbehandlung/flue gas cleaning with residual treatment). This technique combines the especially favorable possibilities of wet flue gas cleaning with the treatment of filter dust. The soluble heavy metals are removed and subsequently concentrated by acid extraction