化工进展2018，Vol.37Issue(1)：381-388,8.DOI:10.16085/j.issn.1000-6613.2017-0827
好氧颗粒污泥的常温湿式储存及恢复
Room-temperature wet storage of aerobic granular sludge and its reactivation
摘要
Abstract
In order to investigate the feasibility of room-temperature wet storage of aerobic granular sludge(AGS),variation of granular stability and reactivation performance were explored under open and close storage conditions. The color of AGS gradually turned from yellow into dark brown during 50 days' storage,and most of the granules convert to hollow structure. There were no big changes of granular settling property and mixed liquor volatile suspended solids (MLVSS)/mixed liquid suspended solids(MLSS),but significantly decreases of extracellular polymeric sabstances(EPS) content,specific oxygen utilization rate and dehydrogenase activity were detected. The results indicated that effects of the two storage methods were similar to each other,and granular stability dropped significantly during storage. However,there was no seriously damage of the granular three-dimensional structure. The color of AGS turned into yellow rapidly during the reactivation,and the EPS content,specific oxygen utilization rate and dehydrogenase activity increased quickly. It was observed that some of the hollow granules were broken,and these fragments and unbroken AGS could be served as the nucleus or carrier for microbe adhesion and proliferation. Under strong hydraulic selection pressure,the granular stability was recovered in 12 days by the surviving microorganism's rapid proliferation and secretion large quantities of sticky EPS,and the reactivated granules had better physicochemical properties and excellent pollutants removal ability.关键词
好氧颗粒污泥/储存/聚合物/稳定性/恢复/载体Key words
aerobic granular sludge/storage/polymers/stability/reactivation/support分类
资源环境引用本文复制引用
赵珏,程媛媛,宣鑫鹏,龙焙,郑洋洋,陆晨露,王智勇,王华生..好氧颗粒污泥的常温湿式储存及恢复[J].化工进展,2018,37(1):381-388,8.基金项目
江西省教育厅科技项目(GJJ150627)、江西省大学生创新创业训练计划项目(XZG-16-08-08)及国家自然科学基金项目(21467009). （GJJ150627）
