The middle density fibreboard ( MDF ) wastewater which contains a great deal of tannin and xylogen mainly usually can not be degraded by common physicochemical methods .

中密度板生产废水含有大量的单宁和 木质 素，采用通常物化方法几乎不能将其降解。

This paper adopts the theory of wood-based panel micro-mechanics and cytology and puts forward mathematical calculated method of using xylogen thick of cellular wall .

本文采用人造板微观力学和 木材细胞学理论，提出了一 种利用 木 纤维细胞壁厚的数学求解方法。