下一代连续流 SBR 技术用于城市废水处理:设计和优化
Paula Carrera1, Jingxing Ma2, Michel Caluwé2
1BioCo Research Group, Department of Green Chemistry and Technology, Ghent University, Ghent, Belgium.
The Science of the total environment
|March 22, 2025
概括
连续流量测序批量反应器 (SBR) 提供了一个更小,更节能的废水处理解决方案. 这项研究开发了一种设计程序并评估了性能,实现了85%的COD和高达94%的去除.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 生物反应器设计设计
背景情况:
- 连续流量测序批量反应堆 (SBR) 在足迹和能源使用方面比传统系统具有优势.
- 优化连续流动的SBR对于最大限度地提高其在生物废水处理中的好处至关重要.
- 了解反应堆动态是有效的市政废水管理的关键.
研究的目的:
- 开发连续流动SBR的设计程序.
- 评估用于城市废水处理的连续流 SBR 的性能.
- 分析运营策略对反应堆效率的影响.
主要方法:
- 开发了基于动力学,废水成分和固体保留时间 (SRT) 的反应器尺寸设计程序.
- 包含SBR操作的特定设计特征,包括有机负载率和无氧-有氧分数.
- 利用专门的模型分析了在各种空气化策略下全尺寸连续流动SBR (LUCAS®) 的行为和性能.
主要成果:
- 开发的设计程序被证明适用于连续流 SBR 和适用于其他 SBR 技术.
- 由于反应堆水力学,生动力学和运行周期,观察到强大的循环动力学.
- 实现了85%的化学氧气需求 (COD) 清除和67-90%的清除效率,满足了废水要求.
- 较高的去除效率被发现与较低的有氧-无毒比率.
- 有氧颗粒污泥增强了高达94%的去除,并显示了生物去除的潜力.
结论:
- 开发的设计程序有效地支持连续流动SBR的设计.
- 连续流动的SBR在市政废水处理中表现出强的性能,具有提高营养物质去除的潜力.
- 为了高效的生物去除,需要进一步优化循环分布.
- 该研究提供了有价值的过程理解,以促进持续流 SBR 技术的最佳应用.
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