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Melting and Solidification of Incineration Ash in Electric Furnace

Melting and Solidification of Incineration Ash in Electric Furnace

History of business

  • In 1995, Chuo Denki Kogyo became the first private company in Japan to begin treatment of municipal incineration ash (non-industrial waste) by melting it in a ferroalloy furnace.
  • In 2002, a dedicated furnace was put into operation, and treatment of industrial waste was started.
  • In 2004, the second dedicated furnace was put into operation.
  • In 2013, the processing capacity of the dedicated furnace was increased (by 50%).
  • In 2018, the third dedicated furnace was put into operation.

Features

  • Due to high-temperature melting and solidification, the treatment is able to break down dioxin and detoxify and stabilize heavy metals.
  • The generated slag (ECOLAROCK, a registered trademark) is sold for building and civil engineering purposes as a safe and environment-friendly product.
  • Valuable metals (gold, silver, copper, etc.) contained in the molten metal are recycled and used.

Warehouses for waste storage

Road building materials

Use of ECOLAROCK
  • Roadbed building materials

Use as a banking material
for disaster prevention parks

Use of ECOLAROCK
  • Embankment material for evacuation site  in the event of a tsunami

Use as a levee construction
material (for disaster restoration)

Use of ECOLAROCK
  • Embankment in disaster restoration of roadbed materials
  • Base materials used for levee construction

Use as leveling materials

Use of ECOLAROCK
  • Leveling materials used in solar panel installation