KOBMKlockner Oxygen Blown Maxhutte (steel-making furnace)
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2]O-P, Olsen P concentration was increased in those soils incubated with KOBM, and decreased in soils treated with all other by-products (Table 2).
The only consistent trend evident was a decrease in yield in fly ash, bottom ash <2 mm, and KOBM treated soils.
Treatment with increasing quantities of KOBM caused more P loss compared with control soils, while no trend of P loss with increasing fly ash application occurred.
The exception was KOBM slag where Ca is the major P binding agent (Table 1).
Today, the KOBM steelmaking sequence is fully automated from the first oxygen blow to the end of steel tapping.