Development of fundamental treatment for recycling wood resource

木材废料最初被用作木屑和燃料，作为回收的原材料，但最近倾向于将其作为垃圾倾倒或燃烧。该项目旨在有效地再利用拆除房屋的木材和使用过的木制品。根据研究结果，可以得出以下结论：(1)拆房木材中的木屑被用于制作刨花板。刨花板的质量与原始木屑的质量相当。(2)研究了废旧木材快速碳化的方法。两步炭化对于去除指甲等和精炼木炭更有效。(3)各种用过的木材，如用过的木柱、胶合木、木屑、锯末、腐木等都经过碳化处理，然后随着碳化温度的升高，其吸收能力和润湿性趋于提高。

Wood waste has been originally used for chip and fuel as a recycled raw material, but it recently tends to be dumped or burned as rubbish. This project aims to re-use the timber from demolished houses and used wood products effectively. Based from the results of this study, the following conclusions could be drawn :(1) Wood chip from the timber of demolished house has been used for particleboard. The quality of the particleboard was equal to that from virgin wood chip.(2) A rapid carbonizing method for used timber was developed. The two step carbonization could be more effective for removing nails and so on and for refining the charcoal.(3) A variety of used timbers, such as used colomn, glulam, chip, saw dust and decay wood, were carbonized, and then their ability of absorption and wettability tend to be increased in increasing carbonizing temperature.