木聚糖酶在硫酸盐木浆辅助漂白中的应用研究

结合某木浆厂的实际运行数据,对采用木聚糖酶辅助漂白前后的木浆质量、主要物料消耗量及产生废水的污染物指标进行了详细分析.结果表明,在工艺运行参数不变条件下,使用木聚糖酶辅助漂白能够显著提高生产纸浆质量等级,降低原木、二氧化氯和能源消耗量,减轻漂后废水的污染负荷,对于降低纸浆生产成本,保护水环境具有重要意义.

Application research on kraft wood pulp bleaching with xylanase pretreatment

Based on the practical operation data, the analysis of the pulp quality, the main material consumption and the wastewater pollutants with or without xylanase pretreatment in one kraft wood pulp mill was done. The results showed that the pulp quality could be significantly improved, the per unit consumption of wood, chlorine dioxide and energy could be sharply reduced and the pollutant loads of the bleaching wastewater could be cut down with xylanase pretreatment under the unchanging operation parameters. It is a practical bleaching process which could decrease the pulp production cost and preserve the water environment.