木聚糖酶对化学浆废水生化污泥脱水性能的影响  

Effect of Xylanase on Sludge Dewatering Performance of Chemical Pulp Wastewater

作　　者：赵登[1,2] 张安龙[1,2] 罗清[1,2] 

机构地区：[1]陕西科技大学轻工与能源学院,陕西西安710021 [2]陕西省造纸技术及特种纸品开发重点实验室,陕西科技大学,陕西西安710021

出　　处：《造纸科学与技术》2014年第4期56-59,97,共5页Paper Science & Technology

基　　金：十二五国家科技支撑计划项目(2011BAC11B04);陕西科技大学研究生创新基金项目

摘　　要：采用木聚糖酶处理化学浆废水生化污泥,讨论了其影响因素。通过单因素实验和正交实验得到最佳工艺条件:酶用量为3.2U/g,温度为50℃,反应时间为60min,再加入4mg/L CPAM后,污泥沉降体积下降50%,污泥的沉降性能得到很大程度的提高。最后应用红外光谱分析了污泥化学成分的变化,进一步验证了木聚糖酶的处理效果。The xylanase is applied in the treatment of biochemical sludge of chemical pulp wastewater and the influ- encing factors are discussed in this paper. Through the single factor experiment and orthogonal experiment to deter- mine the optimal reaction conditions, the results show that ： when dosage of enzyme is 3.2U/g, the temperature is 50℃ , the reaction time is 60min, and the addition of CPAM is 4mg/L, the sludge sedimentation volume decreased by 50%, and the sludge settling properties has a large degree of improvement. Finally, application of the infrared spectrum analysis of the change of chemical composition of the sludge further explains the treatment effect of xyla- nase.

关 键 词：木聚糖酶 污泥脱水 处理 

分 类 号：X793[环境科学与工程—环境工程]