管状膜透析仪的设备性能,包括对透析效率的超效应
Chii-Dong Ho1, Jr-Wei Tu1, Jun-Wei Lim2
1Department of Chemical and Materials Engineering, Tamkang University, Tamsui, New Taipei 251301, Taiwan.
Membranes
|June 27, 2023
概括
这项研究通过整合超过来增强用于废水处理的膜透析. 这种联合过程显著提高了溶液去除率,与传统透析单独相比,效率几乎翻了一番.
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:
- 膜透析是污水处理的一个关键技术.
- 传统透析受到扩散驱动的质量转移的限制,依赖于度梯度.
- 提高透析效率对于有效的废水管理至关重要.
研究的目的:
- 开发一个同心管式透析和超模块的数学模型.
- 通过结合超过来研究透析速率的提高.
- 分析操作参数对质量转移的影响.
主要方法:
- 为同心管状模块开发了一种二维数学模型.
- 克兰克-尼科尔森方法被用于数值解决速度配置文件.
- 进行模拟以评估在不同条件下的透析速率.
主要成果:
- 整合超过显著改善了透析速率.
- 实现了最大的透析速率提高,高达纯透析的两倍.
- 该研究说明了模块几何和操作参数对性能的影响.
结论:
- 将膜透析与超过相结合,可大幅提高废水处理效率.
- 跨膜压力和超过流是增强质量转移的关键因素.
- 开发的模型为优化这些系统提供了洞察力.
相关概念视频
Dialysis
736
Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
736
Peritoneal Dialysis I: Introduction and Procedure
64
Peritoneal dialysis (PD) is a procedure that facilitates the exchange of solutes, waste products, electrolytes, and excess fluid between the blood in the peritoneal capillaries and a dialysis solution introduced into the peritoneal cavity.Principles of Peritoneal Dialysis (PD)Diffusion: Waste products such as urea and electrolytes move from high concentrations in the blood to low concentrations in the dialysate across the peritoneal membrane. This mechanism is driven by the concentration...
64
Hemodialysis II: Procedure and Complications
42
DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...
42
Hemodialysis I: Introduction
65
Hemodialysis (HD) is a medical treatment that artificially removes waste products, excess fluids, and toxins from the blood when the kidneys are no longer able to perform these functions effectively. In this process, blood is filtered through a semipermeable membrane, allowing for the selective removal of waste while preserving necessary components like blood cells and proteins. Hemodialysis is typically performed in patients with end-stage renal disease (ESRD) or severe kidney...
65
Peritoneal Dialysis II: Peritoneal Dialysis Systems and Complications
44
Peritoneal dialysis (PD) is a medical process that removes waste products and excess fluid from the body using the peritoneal membrane as a natural filter.Peritoneal Dialysis MethodsSeveral methods can be used for peritoneal dialysis, including Acute Intermittent Peritoneal Dialysis, Continuous Ambulatory Peritoneal Dialysis, and Automated Peritoneal Dialysis, also known as Continuous Cyclic Peritoneal Dialysis.Acute Intermittent Peritoneal Dialysis (AIPD) is used for patients with uremic...
44
Peritoneal Dialysis III: Nursing Management
53
Peritoneal dialysis, or PD, utilizes the peritoneal membrane as a filter to eliminate excess fluid and waste products. Effective nursing management is essential for ensuring patient safety, preventing complications, and promoting optimal function of the peritoneal dialysis process.Assessment and MonitoringNurses must thoroughly assess the patient before, during, and after each dialysis session. Regular monitoring includes vital signs, daily weight, fluid intake and output, and laboratory values...
53


