摘要
研究了木聚糖酶预处理HD漂白麦草浆的效果。结果表明:AU-PE89木聚糖酶预处理麦草浆的最佳条件为:酶用量50g/t,温度50℃,时间90～120min,pH值7.0。在HD漂白工艺中增加木聚糖酶预处理段,可使纸浆白度提高2.6%ISO,漂白废液中CODcr含量减少约30%。
The effect of xylanase pretreatment on HD bleaching wheat straw pulp is investigated. The results show that the optimal technological condition for pretreatment with AU-PE89 xylanase is： xylanase charge 50g/t, temperature 50℃, time 90 - 120min and pH value 7.0. The brightness of xylanase pretreated pulp after HD bleaching was increased by 2.6%ISO and the COD content in the bleaching effluent reduced Cr by approximately 30%.
出处
《中华纸业》
CAS
北大核心
2006年第1期43-44,共2页
China Pulp & Paper Industry
基金
国家自然科学基金资助项目(20476052)
关键词
麦草浆
木聚糖酶
预处理
HD漂白
wheat straw pulp
xylanase
pretreatment
HD bleaching
