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Ruoting Liu¹, George Nakhla¹, Jesse Zhu¹

¹Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada.

|August 15, 2025

概括

Invammox将主流的anammox集成到反向流化床生物反应器中,实现快速启动和稳定的运行. 这种新型系统提高了去除效率,并减少了用于废水处理的反应堆体积.

科学领域:

环境生物技术环境生物技术
废水处理工程废水处理工程
微生物生态学微生物生态学

背景情况:

主流的anammox过程在启动,稳定性和效率方面面临限制.
逆流体化床生物反应器为增强生物质保留和水力动力学提供了潜力.

研究的目的:

将主流的anammox集成到反向流化床生物反应器中 (Invammox).
为了克服传统的anammox和流化床工艺的局限性.
开发一个可扩展和节能的去除平台.

主要方法:

开发了一个快速的生物膜附着协议 (<3小时).
优化了初始颗粒负载 (30%的反应堆体积) 和种子生物质 (1gVSS/L).
实施了内部液体循环,以管理生物膜厚度和增强活性.

主要成果:

英瓦莫克斯表现出自发的水力动力学均性,并避免了生物膜的过度生长.
该系统保持了超过6000小时的弹性稳定性,并保持了特殊的生物质保留.
达到了高达0.61公斤NH4+-N/公斤VSS·d的特异性anammox活性,比颗粒式anammox高出三倍.
一个完整的系统显示,反应堆容量减少了62%,用于处理1.5MGD的城市废水.

结论:

Invammox代表了主流anammox和部分化/anammox的最先进的平台.
该过程为生物去除提供了一个可扩展的,节能的范式.
这种融合克服了长期存在的局限性,为先进的废水处理铺平了道路.

关键词:

水力动力学稳定性水力动力学稳定性移除的方法移除的方法部分化部分化快速的生物膜附着装置.技术经济分析技术经济分析

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