Now Eucalyptus wood begins to be used to pulp. However, water, adhesives and other assistants are severely wasted because the extractive of Eucalyptus wood is enriched. What is worst, water pollution becomes more serious because of the polluting extractives of Eucalyptus wood. Therefore, based on the single-factor method, the fresh E. camaldulensis shavings were treated in the sorbitic extractor and supersonic wave extractor. The extractives were analyzed by ZETA and SIZER to find out the leaching rule of nano particles from E. camaldulensis wo...