IFAS污水处理工艺的研究进展

刘国华; 李钦渝; 徐相龙; 齐鲁; 王洪臣

doi:10.13205/j.hjgc.202202032

IFAS污水处理工艺的研究进展

doi: 10.13205/j.hjgc.202202032

中国人民大学环境学院低碳水环境技术研究中心, 北京 100872

基金项目:

国家水体污染控制与治理科技重大专项(2017ZX07102004)

详细信息

作者简介:
刘国华(1976-),男,博士,副教授,主要研究方向为水处理技术。lgh@ruc.edu.cn

通讯作者:
徐相龙(1989-),男,博士研究生,主要研究方向为水处理技术。qsyxxl@ruc.edu.cn

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出版历程
- 收稿日期: 2020-11-16
- 网络出版日期: 2022-04-02
- 刊出日期: 2022-04-02

RESEARCH PROGRESS OF IFAS PROCESS FOR WASTEWATER TREATMENT

Low Carbon Water Environmental Technology Research Center, School of Environment & Natural Resources, Renmin University of China, Beijing 100872, China

摘要

摘要: 总结了固定生物膜-活性污泥(IFAS)工艺的相关研究进展,主要包括IFAS工艺对污染物的去除性能、与其他技术耦合后的工艺性能、关键运行参数的影响,以及动力学模拟对IFAS工艺运行过程的优化。和传统活性污泥法(CAS)比较,IFAS工艺结合悬浮污泥与附着生物膜二者的优势,对有机物和氮素等污染物表现出更好的去除效果。IFAS工艺与其他新型污水处理工艺的耦合,可提高功能菌的代谢活性、多样性及选择性。在抗运行冲击方面,IFAS工艺在C/N变化、低温及高氨氮的情况下仍具有较高的运行稳定性;在工艺优化方面,动力学模拟有助于更好地理解IFAS反应器中运行参数、生物质特性,以及工艺性能间的内在联系,从而可达到工艺优化的目的。IFAS工艺的高污染去除及抗冲击性能为我国污水处理厂的升级改造提供了很好的技术途径。为进一步提高对IFAS工艺的应用能力,未来在高性能填料的研发、生物膜挂脱膜平衡、泥膜两相间的交互作用及微生物特征分布等方面还有待进一步研究。
- 固定生物膜-活性污泥工艺 /
- 污染物去除 /
- 工艺耦合 /
- 运行参数 /
- 升级改造
Abstract: This paper summarized the relevant progress of fixed biofilm-activated sludge(IFAS) process, mainly including pollutant removal performance of single process and coupling with other processes, influence of operating parameters on the process,and the simulation and optimization of the process by dynamic modeling. Compared with the traditional activated sludge(CAS) process, the IFAS process combined the advantages of suspended sludge and attached biofilm, and showed higher removal performance on organic matter, nitrogen and other pollutants. The coupling of IFAS process and other new wastewater treatment processes improved the metabolic activity, diversity and selectivity of functional bacteria. In terms of operation shock resistance, the IFAS process not only exhibited high stability as C/N changes, but also had a high degree of adaptability under low temperature and high ammonia nitrogen concentration. In the optimization of the process, kinetic modeling allowed optimizing the operation parameters through simulating the interaction between sludge and biofilm. The IFAS process advantages in the performances of high pollutant removal and stability would be an alternative technology approach to the operation upgrading of wastewater treatment plants(WWTPs) in China. The performance improvement of IFAS process should be focused on the subsequent studies such as development of high-performance carriers, balance of biofilm formation and detachment, interaction between suspended sludge and biofilm, as well as the microbial characteristics.
- IFAS process /
- pollutant removal /
- process coupling /
- operation parameters /
- operation upgrading

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