工业水处理 ›› 2025, Vol. 45 ›› Issue (11): 30-37. doi: 10.19965/j.cnki.iwt.2025-0016

• 专论与综述 • 上一篇    下一篇

好氧颗粒污泥强化造粒技术研究进展及应用展望

王曦1(), 梁郡1, 李芷昕2, 谢丽2, 李惠平2, 庞维海2()   

  1. 1. 同济大学建筑设计研究院(集团)有限公司,上海 200092
    2. 同济大学环境科学与工程学院 长江水环境教育部重点实验室,上海 200092
  • 收稿日期:2025-04-07 出版日期:2025-11-20 发布日期:2025-11-20
  • 通讯作者: 庞维海
  • 作者简介:

    王曦(1985— ),工程硕士,高级工程师,E-mail:

Research progress and application prospect of granulation- enhancement technologies for aerobic granular sludge

Xi WANG1(), Jun LIANG1, Zhixin LI2, Li XIE2, Huiping LI2, Weihai PANG2()   

  1. 1. Tongji Architectural Design (Group) Co. , Ltd. , Shanghai 200092, China
    2. Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
  • Received:2025-04-07 Online:2025-11-20 Published:2025-11-20
  • Contact: Weihai PANG

摘要:

好氧颗粒污泥(AGS)的形成机理是强化造粒技术的基础。综述了絮凝剂强化、金属阳离子强化、晶核强化、信号分子强化及生物强化5类强化造粒技术的机理,分析了各类强化造粒技术对污泥颗粒形成的影响,梳理了相应的造粒速度、污泥粒径、水处理效能和适用规模,总结了AGS在造纸废水、印染废水、含油废水等典型工业废水中的研究应用状况。絮凝剂、金属阳离子和信号分子主要通过促进絮凝污泥聚集和刺激EPS分泌强化成粒速率;晶核强化技术基于成核载体假说,为微生物提供辅助载体,进而实现快速成粒。AGS强化造粒技术,尤其是异位造粒技术,具有巨大应用前景。未来需进一步阐明不同金属离子、絮凝剂、晶核和信号分子强化AGS成粒的机制与关键影响因子,并关注强化成粒技术的环境风险及经济可行性,为其在实际工程中的应用奠定基础。

关键词: 好氧颗粒污泥, 强化造粒, 工业废水处理, 异位造粒

Abstract:

The formation mechanisms of aerobic granular sludge (AGS) underpin various granulation-enhancement technologies. The mechanistic bases of five categories of granulation-enhancement technologies, namely, flocculant-assisted, metal cation-assisted, crystal seeding (nucleation)-assisted, signaling molecule-assisted, and biological reinforcement were reviewed. The effects of each strategy on granule formation was analyzed. The corresponding data on granulation rates, sludge particle size, treatment performance, and scales of application were sorted out. The current research and application status of AGS in treating representative industrial wastewater, such as pulp and paper effluents, textile printing and dyeing wastewater, and oily wastewater, were summarized. Flocculants, metal cations, and signaling molecules primarily accelerated granulation by promoting aggregation of flocculent sludge and stimulating the secretion of extracellular polymeric substances (EPS). Nucleation-based reinforcement, grounded in the nucleation-carrier hypothesis, supplied auxiliary carriers for microorganisms and thereby enabled rapid granulation. Granulation-enhancement technologies for AGS, especially ex-situ granulation, showed substantial application potential. Future work should further elucidate the mechanisms and key influencing factors by which different metal ions, flocculants, nucleation seeds, and signaling molecules reinforce AGS granulation, and should consider potential environmental impacts and economic feasibility, thereby laying the groundwork for implementation in full-scale engineering practice.

Key words: aerobic granular sludge, enhanced granulation, industrial wastewater treatment, ex-situ granulation

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