Development of Light Materials for Planting Using Paper Sludge

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  • 製紙スラッジを用いた植栽用軽量資材の開発
  • セイシ スラッジ オ モチイタ ショクサイヨウ ケイリョウ シザイ ノ カイハツ

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Abstract

The paper sludge has been treated as industrial waste in the final landfill site in Japan, although it is often incinerated, and the incinerated ash is used to a raw material of cement. Whenever the paper sludge is incinerating, CO2 is exhausted from both the combustion of the pulp and the pyrolysis of calcium carbonate. Since the pulp is a biomass, the CO2 exhausted from them are not counted because they are accounting to the carbon neutral. If the sludge is not incinerated, CO2 from calcium carbonate and the pulp would not return into the atmosphere. This act might be evaluated as a carbon sink (CO2 sink), if the carbon from the pulp in the sludge has kept in the sphere of ground for a long time.<BR>We are studying the vailable usages of the paper sludge, which are such as gardening, rooftop gardening, and the plant factories. We think these usages are best for the paper sludge, from the viewpoint of global warming prevention. In this lecture, it reports on the outline.

Journal

  • JAPAN TAPPI JOURNAL

    JAPAN TAPPI JOURNAL 66 (6), 613-617, 2012

    JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

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