紊动对活性污泥特性及微生物代谢产物的影响  

Effect of Turbulence on the Activated Sludge Properties and Microbial Metabolites

作　　者：闫玉涛[1,2] 周凌 冯骞[1,2] 李军 

机构地区：[1]河海大学浅水湖泊综合治理与资源开发教育部重点实验室,江苏南京210098 [2]河海大学环境学院,江苏南京210098 [3]浙江省城乡规划设计研究院,浙江杭州310007 [4]中机国际工程设计院有限责任公司华东分院,江苏南京210098

出　　处：《环境科学与技术》2016年第5期1-7,16,共8页Environmental Science & Technology

基　　金：国家自然科学基金:曝气池多相流作用下紊动对活性污泥特性及微生物代谢行为的影响机制研究(51208173)

摘　　要：紊动是水处理生物反应器中物质和能量传递的重要动力因子,它直接影响活性污泥的特性,制约微生物的生长和代谢行为,也是水处理生物反应器运行效果和效能的关键因素。文章介绍了不同紊动条件下活性污泥粒径、沉降性能、活性等理化特性的演变,颗粒化进程的发展,胞外聚合物和溶解性有机产物等微生物代谢产物的形成和转化规律,探讨了紊动对活性污泥特性及微生物代谢的影响机制,在此基础上指出了现有研究的不足,提出了未来研究的方向,以期为活性污泥系统的优化设计及运行提供参考。Turbulence is an important dynamic factor for mass and energy transfer in bioreactor, which affects activated sludge characteristics and microbial metabolism directly. It is also one of the key factors for the performance and energy consumption of activated sludge system. In this study, the physical, chemical and biological characteristics of activated sludge such as particle size, settling ability, biomass activity were analyzed under different turbulence conditions. The granulation, the extracellular polymeric substances, and soluble organic products of activated sludge were compared under various turbulence conditions as well. The mechanism of turbulence affecting activated sludge characteristics and microbial metabolism was discussed. Based on analysis, the research directions were given.

关 键 词：活性污泥 紊动 微生物胞外聚合物 溶解性有机产物 

分 类 号：X172[环境科学与工程—环境科学]