A more general form of Kedem and Katchalsky's practical equations

✍ Scribed by M. Kargol

• Book ID: 104749012
• Publisher: Springer Netherlands
• Year: 1996
• Tongue: English
• Weight: 609 KB
• Volume: 22
• Category: Article
• ISSN: 0092-0606
• DOI: 10.1007/bf00383819

✦ Synopsis

The applicability of the classical version of Kedem and Katchalsky's practical equations is reduced to membrane systems with sufficiently diluted and well mixed solutions. In biophysical practice (and not only), we usually have to deal with systems whose solutions are poorly mixed. In such systems are generated the so-called near-membrane diffusion layers. Their existence significantly reduces the stream of diluted substance CjS) and the volume stream (&,). In order to describe mathematically these streams generated in the conditions of poor mixing of solutions, it was necessary to transform the Kedem and Katchalsky classical equations into a more general form. This has been done in the present work. The more general equations obtained here are applicable to the description of streams j, and J, generated in the conditions of both good and poor mixing of solutes.