To provide a treatment method of easily and surely detoxifying asbestos-containing matter using a cement manufacturing process, having no possibility of scattering of asbestos, in a rotary kiln used for cement manufacturing, and a cement manufacturing method using the treatment method.
In this treatment method of asbestos-containing matter, cement raw material is supplied to a kiln inlet side of the rotary kiln 1 with its inside kept in a high temperature atmosphere by a heating means 5 provided at an outlet 4 side, and sent to the kiln outlet 4 side for firing using the cement manufacturing process. The asbestos-containing matter is mixed with sewage sludge containing phosphate ions, and the obtained mixture is charged into the kiln inlet part 2 of the rotary kiln 1.
COPYRIGHT: (C)2008,JPO&INPIT
Hitoshi Takeuchi
Tsutomu Takahashi
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