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通过部分化/亚纳摩克斯进行离子交换和生物再生,用于主流城市废水处理
Sheyla Chero-Osorio1, Lanica Steele2, Valerie Carson2
1Department of Civil & Environmental Engineering, University of South Florida, United States.
Bioresource technology
|July 17, 2025
概括
本研究介绍了一种创新的离子交换部分化/亚纳摩克斯 (PN/A) 测序批量生物膜反应器 (SBBR),用于高效的城市废水处理. 这种新型系统可实现可持续的高除率,降低成本和环境影响.
科学领域:
- 环境微生物学 环境微生物学
- 水处理工程水处理工程
- 生物地质化学生物地质化学
背景情况:
- 传统的生物除法 (BNR) 是能源密集型和昂贵的.
- 部分化/亚纳摩克斯 (PN/A) 提供了一个可持续的替代方案,但面临着市政废水特征的挑战.
- 主流城市废水 (MMW) 中的低氨和高有机物质抑制了PN/A的关键过程.
研究的目的:
- 开发和评估一种新的基板级测序批量生物膜反应器 (SBBR),以有效地从MMW中去除.
- 调查离子交换 (IX) 与PN/A工艺的整合,以提高的分离和处理.
- 评估IX-PN/A SBBR系统的性能和微生物群落.
主要方法:
- 有机碳转移,然后在SBBR的长板尺度中使用Chabazite进行氨离分离.
- 通过控制循环的PN/A生物膜对Chabazite进行生物再生.
- 使用关键功能基因 (amoA,amx) 的定量PCR进行微生物社区分析.
主要成果:
- IX-PN/A SBBR在两年多的时间里表现出快速启动和稳定的生物去除 (BNR).
- 实现了高总无机 (TIN) 清除效率 (81%) 和氨清除率 (0.11 g N/L/day).
- 该系统在没有化学投入,媒体更换或盐水废物生产的情况下运行.
结论:
- 单阶段IX-PN/A SBBR是一种高效和可持续的MMW处理技术.
- 这种方法通过整合离子交换来克服MMW传统BNR和PN/A的局限性.
- 该技术为废水处理的成本和碳足迹减少提供了显著的潜力.
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