模拟气体透膜中的回收和水运输
C Da Silva1, A Serra-Toro1, V Pelizzaro2
1Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Barcelona 08028, Spain.
Water research
|November 23, 2024
概括
这项研究引入了使用气体透膜接触器的回收新模型,同时考虑了氨和水的运输. 该模型准确地预测了废水中的回收,并通过实验数据进行了验证.
科学领域:
- 环境工程 环境工程
- 化学工程是化学工程的重要组成部分.
- 膜科学 膜科学 膜科学
背景情况:
- 从废水中回收气对于环境保护和资源管理至关重要.
- 气体透膜 (GPM) 接触器的现有模型往往忽视了水运输动态.
- 准确的GPM接触器建模需要了解溶液和溶剂运输.
研究的目的:
- 开发和验证GPM接触器中回收的新型建模方法.
- 将氨和水运输动态纳入GPM建模框架.
- 为了研究透压对GPM接触器内的传输现象的影响.
主要方法:
- 为GPM接触器开发一个新的数学模型.
- 使用合成废水对模型进行实验性校准和验证.
- 在不同度和条件下测量氨和水运输 (35°C,pH9).
主要成果:
- 该模型成功地预测了GPM接触器中的氨和水运输动态.
- 估计的氨运输常数 (Km) 范围为 (1.2 - 2.1) ·10-6 m/s.
- 估计的水运输常数 (Kw) 范围为 (2.8 - 8.2) ·10-10 m/s bar).
- 高的R2值证实了模型与实验数据之间的强烈一致.
结论:
- 新的建模方法为使用GPM接触器的回收提供了更全面的理解.
- 该模型能够考虑水运输的能力提高了其预测准确度.
- 这种方法对于从高强度废水中回收气是有效的,有助于资源集中.
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