抄録
This paper is intended as an investigation of the effectiveness of carbonization treatment of organic waste, especially wood waste, in global environment issues. Generally, carbonization treatment furnaces need fossil fuel to carbonize organic waste with radiating heat and discharging CO2. Carbonization treatment can get charcoal as products and energy resources from organic waste. But if the process needs a lot of fossil fuel, the evaluation of the process is not very good.
This paper focuses on some carbonization furnace, estimates energy and carbon budget. The result of the estimation makes clear that the mass of the acquired energy and carbon is smaller than the mass of the lost them in the case of some furnaces. Even though these furnaces produce high quality charcoal or activated carbon, these furnaces need to be improved from the viewpoint of global warming and energy depletion issues. But in other cases the mass of the acquired energy and carbon is larger than the mass of the lost them by the effective use of energy that is included in wood waste.
So, it is clear that the some types of carbonization treatment furnace for wood waste are useful against global environment issue.
