古紙リサイクルの現状と問題点
1997 年 51 巻 10 号 p. 1459-1469
詳細
1997 年 51 巻 10 号 p. 1459-1469
The paper industry is very friendly to global environment as follows, compared to other industries manufacturing basic materials.
1. Wood, which is one of main raw materials along with waste paper, can be regenerated perpetually with suitable plantation and forest management.
2. Plantation absorbs carbon dioxide, which is a major contributor to global warming.
3. One third of the energy consumed by the industry is originated from biomass.
Then, the author evaluates the significance of waste paper recycling from following view points.
1. Carbon dioxide generation in the process
2. Fossil fuel consumption in the process
3. Conservation of forest
4. Solid waste handling
Imbalance between the supply and the demand has been a problem. The author analyzes it and proposes how to cope with it.
It is concluded that generating power from waste paper should be envisioned if the imbalance will continue.
