化工进展 ›› 2022, Vol. 41 ›› Issue (5): 2686-2697.DOI: 10.16085/j.issn.1000-6613.2021-0975

• 资源与环境化工 • 上一篇    下一篇

好氧颗粒污泥长期稳定运行研究进展

郭之晗1(), 徐云翔1, 李天皓1, 黄子川1, 刘文如1,2,3, 沈耀良1,2,3()   

  1. 1.苏州科技大学环境科学与工程学院,江苏 苏州 215009
    2.江苏省环境科学与工程重点实验室,江苏 苏州 215009
    3.江苏高校水处理技术与材料协同创新中心,江苏 苏州 215009
  • 收稿日期:2021-05-10 修回日期:2021-07-10 出版日期:2022-05-05 发布日期:2022-05-24
  • 通讯作者: 沈耀良
  • 作者简介:郭之晗(1996—),男,硕士研究生, 研究方向为水污染控制与理论。E-mail:zhguo88888888@163.com
  • 基金资助:
    国家自然科学基金(51578353);江苏省研究生创新计划(KYCX20_2778)

Research progress on long-term stable operation of aerobic granular sludge

GUO Zhihan1(), XU Yunxiang1, LI Tianhao1, HUANG Zichuan1, LIU Wenru1,2,3, SHEN Yaoliang1,2,3()   

  1. 1.School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009,Jiangsu, China
    2.Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou 215009, Jiangsu, China
    3.Jiangsu High Education Collaborative Innovation Center of Water Treatment Technology and Material,Suzhou 215009, Jiangsu, China
  • Received:2021-05-10 Revised:2021-07-10 Online:2022-05-05 Published:2022-05-24
  • Contact: SHEN Yaoliang

摘要:

好氧颗粒污泥因具有结构密实、沉降性好、耐冲击负荷的优点,在废水处理领域有着广阔的应用前景,然而颗粒成型时间长、长期运行易失稳为其推广应用的限制性因素。本文回顾了近年来国内外关于好氧颗粒污泥稳定性方面的研究进展;梳理分析了影响好氧颗粒污泥运行稳定性的因素,包括宏观角度的反应器构型、水流剪切力、有机负荷、饱食-饥饿期、进水底物、C/N比(碳氮比)、F/M比(营养微生物比),及微观角度的颗粒粒径、胞外聚合物组成、微生物生长速率、菌落结构等;列举并讨论了调整曝气、改变进料方式、添加载体颗粒、选择生长缓慢微生物等强化好氧颗粒污泥稳定性的方法途径;最后指出了好氧颗粒污泥的形成机理仍会是今后的研究重点,同时应利用基因组学工具探究微生物群感效应对颗粒稳定性的作用相关性,结合微生物生态学确定好氧颗粒污泥的最佳运行条件,以期推动该技术的应用与发展。

关键词: 好氧颗粒污泥, 影响因素, 稳定性

Abstract:

Aerobic granular sludge has a broad application prospect in the field of wastewater treatment due to its advantages of dense structure, good settlement and impact load resistance. However, the long forming time of particles and the instability of long-term operation have become the limiting factors of its promotion and application. The research progress on the stability of aerobic granular sludge at home and abroad in recent years was reviewed. The factors affecting the operation stability of aerobic granular sludge were analyzed, including the macroscopic reactor configuration, water flow shear force, organic load, sate-starvation period, underwater inflow, C/N ratio, F/M ratio, and the microscopic particle size, extracellular polymer composition, microbial growth rate, colony structure, etc. The methods of enhancing the stability of aerobic granular sludge, such as adjusting aeration, changing feeding methods, adding carrier particles and selecting slow-growing microorganisms, were listed and discussed. Finally, it pointed out that the formation mechanism of aerobic granular sludge will still be the focus of future research. At the same time, genomics tools should be used to explore the relationship between the effect of microbiota sensitivity on particle stability, and the optimal operating conditions of aerobic granular sludge should be determined in the combination with microbial ecology, in order to promote the application and development of this technology.

Key words: aerobic granular sludge, influencing factors, stability

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