Waste Avoidance & Recycling

Development and testing of a process to utilize and thermally use recyclings and waste from the purification of exhaust waste and waste water treatment by injecting it into metallurgical melt reactors (1)

No negative effects on blast furnace operations were detected when injecting dried slurry. It was also possible to route the loaded activated coke via the tuyères to the blast furnace process using an intensity of up to 0.8 t/h. While the slurry is being injected, the metallurgical molten result, with the exception of the phosphor content, does not show any significant fluctuations compared to normal operation. The pig iron corresponded with the specified standards (detail information in German).

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Source: Deutsche Bundesstiftung Um Federal Foundation for the Environment (DBU)welt (DBU)