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News Taiheiyo invests so it can use tsunami waste in cement

Taiheiyo invests so it can use tsunami waste in cement

Written by Global Cement staff 02 August 2011
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Japan: Taiheiyo Cement Corporation has announced that it will install equipment at its Ofunato plant in Iwate Prefecture later in 2011 so that it can remove salt from the wood debris created as a result of the March 2011 tsunami.

Massive amounts of wood are currently being incinerated at the site but the resulting ash is being buried. This is because the debris was soaked in seawater by the tsunami, which results in ash with a very high salt content, potentially causing damage to the kiln when it is used for cement production.

Taiheiyo Cement will install machinery to pulverise and wash the debris to remove the salt, which will make its ash suitable for use in cement. It expects to be able to process 300-500t/day of debris a day in this fashion. This investment is significant, because it has been specifically brought about because of tsunami-derived waste materials.

Taiheiyo Cement expects to restore the other kiln at the plant and resume cement production by November 2011 and so will attempt to install the debris-processing equipment as soon as possible.

Both kilns at the Ofunato factory were damaged in the earthquake but since the end of June 2011, the least damaged plant has been put to use incinerating debris from Ofunato and nearby Rikuzentakata.

Last modified on 22 November 2011
Published in Global Cement News
Tagged under
  • Japan
  • Taiheiyo
  • Earthquake
  • Ofunato

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