通过唐南透析插头流量接触器从损坏的水中去除氧化离子
Shalom Fox1, Kristina Stadnik1, Amit K Thakur1
1Zuckerberg Institute for Water Research, Blaustein Institutes of Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion 84990, Israel.
Membranes
|November 24, 2023
概括
与传统方法相比,新的插头流动接触器设计显著提高了从污染水中去除酸盐和酸盐等微量氧化离子的效果. 这一进步提高了离子交换膜生物反应器 (IEMB) 的效率.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 膜科学 膜科学 膜科学
背景情况:
- 建立了离子交换膜生物反应器 (IEMB) 来从水中去除微量氧离子.
- 传统的唐南透析接触器通常以连续水箱反应堆 (CSTR) 模式运行,从而限制了效率.
- 在CSTR模式下,高循环率导致料和退出度相似.
研究的目的:
- 开发和评估一个插头流动的多南透析接触器 (PFR),用于增强氧离子去除.
- 将PFR接触器的性能与传统的CSTR模式进行比较.
- 模拟和理解PFR系统内的不同离子交换膜的行为.
主要方法:
- 一个新的插头流多南透析接触器的构造和特征.
- 实验操作使用料溶液加上化物和酸盐离子.
- 使用ACS和PCA-100离子交换膜进行微量离子去除.
- 基于膜特性和接触器设计,开发数学模型来预测离子度.
主要成果:
- 与使用ACS膜的CSTR模式相比,PFR接触器实现了三倍以上的膜面积加载率和两倍以上的流量.
- 一个非线性吸附模型准确地预测了ACS膜系统中的甲酸盐度.
- 一个线性流量模型成功地描述了PCA膜的酸盐度,表明了边界层的阻力.
结论:
- 插头流动的多南透析接触器设计为痕迹氧化离子的去除提供了显著提高的效率.
- 这项研究为扩大多南透析技术的工业应用提供了基础.
- 了解膜特异性行为对于优化IEMB性能至关重要.
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