RECYCLING OF WOODY AND PAPER WASTE

1)木质废弃物和纸类废弃物的回收利用木质废弃物和纸类废弃物中含有瓷器、衣物、铝箔等异物，因此难以有效地回收利用。然而，木制建筑废料，如支柱和木板，以及废纸，如报纸和杂志，在将这些碎片和从碎片中去除磁性金属后，被回收用于制造刨花板和纤维板。2）木质和造纸废料的制造（1）用木制建筑废料制造与碎片结合的水泥板碎片中的异物的影响，研究了木片尺寸和木片洗涤对木片水泥板的强度和其它物理性能的影响。因此，较大的碎屑会导致强度的下降，但冲洗的效果，防止了芯片-水泥的粘结抑制。(2)铝基复合刨花板的研制通过在木屑中掺入铝箔，研制出了具有降低电磁波作用的功能性刨花板。(3)利用废纸生产层压纸板和活性炭层压纸板的物理性能与密度密切相关，密度越高，抗弯强度和剥离强度越高，吸水率越低。以CO_2为活化气体，在最高反应温度920 ℃下生产的活性炭质量与市场上的活性炭质量相当。3）木质废弃物的微生物降解安全废弃研究了木质废弃物的微生物降解安全废弃方法，证实了部分真菌具有较高的降解能力。

1) Recycling of woody and paper wasteIt was difficult to recycle efficiently woody and paper waste, because of different foreign matters included in the waste, such as china ware, clothes and aluminum foil. However, wooden constructiion wastes, as pillars and boards, and used papers, as newspaper and magazine were recycled for manufacture of particleboard and fiberboard, after chipping these and removing magnetic metals from the chip.2) Manufacturing of woody and paper waste(1) Manufacthre of cement board combined with chip from wooden construction wastesEffects of foreign matters in chip, chip size and chip washing were examined on strength and other physical properties of wood-chip cement board. Consequently, larger chip brought about the decrease of strength, but the washing resulted in effect which prevents the bonding inhibition of chip-cement.(2) Manufacture of aluminum composites particleboardFunctional particleboard, which can reduce electromagnetic wave, was manufactured by mixing aluminum foil in the wood chip.(3) Manufacture of laminaated paper board and activated carabon from waste paperPhysical properties of laminated paper board were closely concerned with the density, and the high density gave rise to the increase of bending and peeling strengths, and the decrease of water absorption. Quality of activated carbon, produced on the maximum reaction temperature at 920ﾟC under CO_2 used as activating gas, was equal to that at a market.3) Safety abandonment of woody waste by microbial degradationSafety abandonment methods of woody waste by microbial degradation were investigated, and it was confirmed that some fungi carried a high ability for the degradation.