Analyses of Paper and Wood Components during Recycling Process

A.利用热解-气相色谱法、酶水解-生物传感器测量和X射线荧光分析建立了纸和木材组分如施胶剂、助留剂、增强剂和填料等的定量测定方法。B.通过再生纸的脱纤和脱墨过程，大多数纸用添加剂如施胶剂、助留剂、增强剂和填料从纸浆纤维中除去。这些纸张添加剂组分从回收纸浆纤维中被丢弃，被分类为废弃部分，其最终被焚烧成灰。C.当在中性条件下将淀粉酶添加到复印废纸的脱墨混合物中时，从回收纸浆中去除残余调色剂的能力得到改善。然而，从纸浆中去除的调色剂成分现在在回收造纸米尔斯通过焚烧进行处理。D.从日本的纸浆和造纸米尔斯收集污泥和焚烧灰样品，并使用X射线荧光分析仪测定其元素。从公共垃圾焚烧中心收集焚烧灰样品作为参考样品。还收集了由废弃房屋木质垃圾制备的木炭样品。结果表明，制浆造纸米尔斯污泥和焚烧灰中的主要元素是钙、硅和铝，这三种元素占样品的60%以上。此外，从公共垃圾焚烧中心焚烧的灰烬有相当相似的成分，从纸浆和造纸厂米尔斯。因此，公共垃圾中的主要成分必须是纸张及其相关材料。

A.Quantitative determination methods of paper and wood components such as sizes, retention aides, strength additives, fillers and others have been established using pyrolysis-gas chromatography, enzymatic hydrolysis followed by bio-sensor measurement and X-ray fluorescence analysis.B.Most paper additives such as sizes, retention aids, strength additives and fillers were removed from pulp fibers by defibrating and de-inking processes of the recycled paper. These paper additive components rejected from recycled pulp fibers are classified into abolished fractions, which are eventually incinerated to ash.C.When amylase was added to de-inking mixture of copied waste paper under neutral conditions, removal ability of the residual toners from the recycled pulp was improved. However, the toner components removed from the pulp are now treated by incineration in recycling paper mills.D.Sludge and incinerated ash samples were collected from pulp and paper mills in Japan, and their elements were determined using an X-ray fluorescent analyzer. As reference samples, incinerated ash samples were collected from public garbage incineration centers. Also charcoal samples prepared from woody garbage of scrapped house were collected. The results show that main elements in the sludge and incinerated ash from pulp and paper mills are calcium, silica and aluminum, and these three elements occupied more than 60% of the samples. Also the incinerated ashes from public garbage incineration centers has Quite similar components to those from pulp and paper mills. Thus, the main components in public garbage must be paper and its related materials.