NDLI: The reliability of the conventional gas permeation testing method for characterizing the porous asymmetric membranes: a conceptual review

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The reliability of the conventional gas permeation testing method for characterizing the porous asymmetric membranes: a conceptual review

Content Provider	Scilit
Author	Ismail, A. F. Matsuura, Takeshi
Copyright Year	2016
Description	Attempts have been made to employ extensively asymmetric membranes with porous skin layer for ultrafiltration (UF), microfiltration (MF), membrane distillation (MD) and, more recently, membrane contactor (MC) as separation processes in various industries. Selection of an adequate membrane for a specific application requires a deep understanding of its permeation mechanism and also information on surface porosity, bubble point, mean pore size, and pore-size distribution. The pore size and its distribution have been measured using various methods, best exemplified by gas permeation testing, bubble point method, liquid displacement method, solute probe techniques, and atomic force microscopy (Lee et al., 2002). Each method has its own unique distinction by which it is suitable for specific types of membranes, hence, poses some limitations for the other types of membranes. The important aspect is the accuracy of the method in measuring or estimating the pore size, which in turn arises from a strong theoretical background. One of the easiest and the most frequently used approaches is the well-known conventional gas permeation testing (GPT). Book Name: Membrane Technology for Water and Wastewater Treatment, Energy and Environment
Related Links	https://content.taylorfrancis.com/books/download?dac=C2015-0-67052-9&isbn=9780429225673&doi=10.1201/b19702-27&format=pdf
Ending Page	322
Page Count	14
Starting Page	309
DOI	10.1201/b19702-27
Language	English
Publisher	Informa UK Limited
Publisher Date	2016-03-16
Access Restriction	Open
Subject Keyword	Book Name: Membrane Technology for Water and Wastewater Treatment, Energy and Environment Polymer Science Gas Permeation Permeation Testing
Content Type	Text
Resource Type	Chapter

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