Promoting sludge granulation by putting xonotlite into the UASB reactors during starting-up stage

作     者：WenNi HongweiDuan XiaolingAi JianpingLi 

作者机构：CivilandEnvironmentalEngineeringSchoolUniversityofScienceandTechnologyBeijingBeijing100083China BeijingDevelopmentCenterforAdvancedMaterialsBeijing100083China 

出 版 物：《Journal of University of Science and Technology Beijing》 (北京科技大学学报（英文版）)

年 卷 期：2003年第10卷第4期

页      面：7-11页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：This work was supported by the National Natural Science Foundation of China (No.50172009) 

主　　题：UASB xonotlite secondary particle sludge granulation 

摘      要：Four reactors of up-flow anaerobic sludge blanket (UASB) were concurrentlyoperated to examine the effects of the xonotlite secondary particles on promoting the sludgegranulation during the starting-up stage at room temperature. The results show that the putting ofthe xonotlite secondary particles into the UASB reactors can increase the basicity of the reactingliquid significantly. The particles can act as the media for biomass accumulation. Thus, thegranulation process of the sludge within the reactor can be largely promoted by the specialperformances of the particles both in physical and chemical aspects.