运行条件和微生物动态对膨胀颗粒污泥床反应堆性能的影响:全面审查
Antonio J Aragón-Barroso1, Alejandro González-Martínez2, Jesús González-López2
1Department of Civil Engineering, University of Granada, Dr. Severo Ochoa, s/n, Granada 18071, Spain; Department of Microbiology, Institute of Water Research, University of Granada, C/Ramon y Cajal, 4, Granada 18071, Spain.
Bioresource technology
|February 1, 2026
概括
扩展颗粒污泥床 (EGSB) 反应堆有效地处理工业废水. 最佳性能取决于管理有机载荷率,挥发性脂肪酸和上流速度,以确保稳定的颗粒和工艺效率.
科学领域:
- 环境工程 环境工程
- 生物技术是生物技术.
- 废水处理 废水处理
背景情况:
- 扩展颗粒污泥床 (EGSB) 反应堆是用于高速无氧工业废水处理的先进系统.
- 越来越多的有机物和复杂的废水组成需要优化EGSB的运行.
研究的目的:
- 系统地审查影响EGSB反应堆颗粒形成和性能的操作参数.
- 通过整合物理化学驱动因素和微生物动力学,阐明无氧颗粒化机制.
主要方法:
- 对关键操作参数的文献综述:有机载荷率 (OLR),挥发性脂肪酸 (VFA),pH,温度,流入固体,上流速度 (Vup),细胞外聚合物物质 (EPS) 和固体保留时间 (SRT).
- 分析微生物群落动态及其与操作条件的相互作用.
- 集成概念模型,物理化学驱动器和定量感应 (QS) 用于颗粒化机制.
主要成果:
- 在特定的操作界限内实现EGSB最佳性能:OLR (10-30公斤COD m−3 d−1),VFA (<500-1000毫克L−1) 和Vup (3-6 m h−1).
- 超过VFA,Vup或流入固体的值会导致冲洗和颗粒失效.
- 富含蛋白质的EPS增强了颗粒凝聚力和剪切阻力,这对于高负荷下的稳定性至关重要.
结论:
- EGSB的稳定性非常依赖于在定义的范围内保持运行参数.
- 了解微生物群落的转移和颗粒化机制是开发强大的EGSB系统的关键.
- 需要进一步的研究来优化EGSB,以实现复杂工业废水的可持续处理.
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