Japan produces cement from garbage incineration ash

In August 2003, a Japanese cement company used urban garbage incineration ash as a raw material to produce cement. The company invested more than 2 billion yen in the Kumagai Plant and established a facility to handle 55,000 tons of renewable resources annually.
The production method is to first remove the chlorine from the garbage incineration water and then put it into the cement sintering furnace to be recycled as a substitute for the clay material. If the cement kiln is heated at a temperature higher than 1400°C, it will not be easy to produce organic chlorine compounds - dioxin, and harmless. According to reports, all incineration ash can be used as a raw material for cement. The advantage is that no new waste will be produced.

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