Development of fundamental treatment for recycling wood resource

木废料最初被用作芯片和燃料，作为回收的原材料，但最近它往往被当作垃圾倾倒或焚烧。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。根据本研究的结果，可以得出以下结论：(1)从拆除房屋的木材中提取的木屑已用于刨花板。刨花板的质量与生材相当。(2)研究了废旧木材快速碳化方法。两步炭化可以更有效地去除钉子等，并对木炭进行提纯。(3)对各种废旧木材，如旧木柱、胶合木、木屑、锯末、腐木等进行碳化处理，随着碳化温度的升高，其吸附能力和润湿能力都有增加的趋势。

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.