Moreno Ana Isabel, Font Rafael, Conesa Juan A
Department of Chemical Engineering, University of Alicante, P.O. Box 99, E-03080 Alicante, Spain.
Department of Chemical Engineering, University of Alicante, P.O. Box 99, E-03080 Alicante, Spain.
Waste Manag. 2016 Mar;49:245-252. doi: 10.1016/j.wasman.2016.01.048. Epub 2016 Feb 5.
Furniture waste is mainly composed of wood and upholstery foam (mostly polyurethane foam). Both of these have a high calorific value, therefore, energy recovery would be an appropriate process to manage these wastes. Nevertheless, the drawback is that the energy content of these wastes is limited due to their low density mainly that of upholstery foam. Densification of separate foam presents difficulties due to its elastic character. The significance of this work lies in obtaining densified material by co-densification of furniture wood waste and polyurethane foam waste. Densification of furniture wood and the co-densification of furniture wood waste with polyurethane foam have been studied. On the one hand, the parameters that have an effect on the quality of the furniture waste briquettes have been analysed, i.e., moisture content, compaction pressure, presence of lignin, etc. The maximum weight percentage of polyurethane foam that can be added with furniture wood waste to obtain durable briquettes and the optimal moisture were determined. On the other hand, some parameters were analysed in order to evaluate the possible effect on the combustion. The chemical composition of waste wood was compared with untreated wood biomass; the higher nitrogen content and the concentration of some metals were the most important differences, with a significant difference of Ti content.
家具废弃物主要由木材和内饰泡沫（大多为聚氨酯泡沫）组成。这两种材料都具有较高的热值，因此，能量回收将是处理这些废弃物的一个合适过程。然而，缺点是这些废弃物的能量含量由于其低密度（主要是内饰泡沫的低密度）而受到限制。单独的泡沫由于其弹性特性而难以压实。这项工作的意义在于通过将家具木材废弃物和聚氨酯泡沫废弃物共同压实来获得致密化材料。已经对家具木材的压实以及家具木材废弃物与聚氨酯泡沫的共同压实进行了研究。一方面，分析了对家具废弃物团块质量有影响的参数，即含水量、压实压力、木质素的存在等。确定了可以与家具木材废弃物添加在一起以获得耐用团块的聚氨酯泡沫的最大重量百分比以及最佳含水量。另一方面，分析了一些参数以评估其对燃烧可能产生的影响。将废弃木材的化学成分与未处理的木材生物质进行了比较；较高的氮含量和某些金属的浓度是最重要的差异，其中钛含量存在显著差异。
