中南大学学报（自然科学版）2013，Vol.44Issue(6)：2623-2628,6.
好氧颗粒污泥的快速培养与污泥特性分析
Rapid cultivation of aerobic granular sludge and analysis of sludge characteristics
摘要
Abstract
In order to explore the effect of different settling times on aerobic granulation,test was carried out in a sequencing batch reactor (SBR),where aerobic granular sludge was rapidly cultured through shortening settling time step by step.The results show that during the procedure,the mixed liquor suspended sludge decreased gradually,while,the sludge settleability was improved and the inorganic content in the sludge increased.The sludge particle size differed under different settling time,and the average particle size has a good negative correlation with the settling time.Moreover,aerobic granular sludge will form if the settling time is shorter than 5 min.The polysaccharide plays a main role in sludge granulation.During the granulation procedure in which the settling time is shortened from 7 min to 5 min,the polysaccharide in extracellular polymeric substances (EPS) increases from (140.98+19.54) mg/g to (310.79+50.86) mg/g.Shortening the settling time is an effective strategy to cultivate aerobic granular sludge in a sequencing batch reactor,and the settling time required for successful aerobic granulation will not be longer than 5 min.关键词
序批式反应器/好氧颗粒污泥/沉淀时间/胞外聚合物Key words
sequencing batch reactor/ aerobic granular sludge/ settling time/ extracellular polymeric substances分类
资源环境引用本文复制引用
王昌稳,李军,赵白航,王永磊,刘国洋..好氧颗粒污泥的快速培养与污泥特性分析[J].中南大学学报（自然科学版）,2013,44(6):2623-2628,6.基金项目
国家自然科学基金资助项目(51078008) （51078008）
北京市自然科学基金资助项目(8122005) （8122005）
北京市教委重点基金资助项目(KZ201110005008) （KZ201110005008）
北京工业大学第十届研究生科技基金资助项目(ykj-2012-6867) （ykj-2012-6867）
