开发一种自动化的动态方法来确定kLa,并将其应用于受污染物影响的氧气转移
Ana Micaela Ferro Orozco1,2, Edgardo Martín Contreras1
1Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA - CONICET), Mar del Plata, Argentina.
Environmental technology
|November 24, 2025
概括
一种新的自动化方法准确地测量了生物反应器中的体积氧质量转移系数 (kLa). 发现甲化物 (BAC) 降低了kLa,影响了废水处理中的通风策略.
科学领域:
- 生物化学工程 生物化学工程
- 环境工程 环境工程
- 质量转移是指质量转移.
背景情况:
- 体积氧质量转移系数 (kLa) 对生物反应器的性能至关重要.
- 准确的kLa确定对于过程设计和优化至关重要.
- 污染物可以影响生物系统中的氧气转移动态.
研究的目的:
- 开发和验证一个完全自动化的动态方法来确定kLa.
- 为了研究和化 (BAC) 对kLa的影响.
- 提供BAC对生物反应器中氧气转移的影响的实验证据.
主要方法:
- 开发一种全自动化的动态方法来测量kLa.
- 整合了探测器响应时间校正,以提高准确性.
- 在空气系统中在各种操作条件下验证该方法.
主要成果:
- 自动化方法提供了可重复和可靠的kLa估计.
- 醇稍微增强了kLa (≈18%),而BAC显著降低了它.
- BAC对kLa的减少主要归因于其对表面质量转移系数 (kLS) 的影响.
结论:
- 开发的自动化方法为kLa的确定提供了可靠的方法.
- BAC作为气液质量转移的修饰剂,与其代谢抑制作用不同.
- 这些发现对优化生物废水处理过程中的通风具有重大意义.
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