论文部分内容阅读
在常规蒸煮条件下,选用最佳用碱量(以Na2O计),分别用3种表面活性剂对55%竹子和45%阔叶木混合木片进行了处理。结果表明,用DCA-100和IGSURF-1206表面活性剂处理后,与空白样相比,未漂浆的二氯甲烷(DCM)抽出物、卡伯值和筛渣率降低,白度增加。使用IGSURF-1206非离子表面活性剂处理后,未漂浆和漂白浆的物理强度性能达到最大值,其次是DCA-100,而RDCA-1000没有明显的效果。未漂浆经DCA-100和IGSURF-1206处理后,经C-Ep-H-D流程漂白,COD、悬浮物、溶解物含量大幅度降低。同样,与其他表面活性剂和空白样相比,使用R-DCA-1000未降低污染物负荷。
Under normal cooking conditions, the optimum amount of alkali (calculated as Na2O) was selected, and 55% bamboo and 45% hardwood mixed wood chips were treated with three kinds of surfactants respectively. The results showed that the bleached methylene chloride (DCM) extract, kappa number and reject ratio decreased and whiteness increased when treated with DCA-100 and IGSURF-1206 surfactants compared to the blank. After treatment with IGSURF-1206 non-ionic surfactant, the physical strength properties of bleached pulp and bleached pulp reached the maximum, followed by DCA-100, whereas RDCA-1000 had no significant effect. Unbleached pulp after DCA-100 and IGSURF-1206 treatment, the C-Ep-H-D process bleaching, COD, suspended solids, dissolved matter content significantly reduced. Likewise, the use of R-DCA-1000 did not reduce the contaminant load compared to other surfactants and blank samples.