出版日期：2014-08-27 00:00:00

著者：Hwang, Kuo-Jen; Cheng, Tung-Wen

著錄名稱、卷期、頁數：AIChE Journal 60(11),　p.3869-3877

摘要：A potential method has been developed for evaluating simultaneously both the average specific resistance and average porosity of the filter cake formed in unstirred dead-end ultrafiltration of nanocolloids such as bovine serum albumin solution and silica sol. The method consists of variable pressure filtration followed by constant pressure filtration. The relation between the average specific cake resistance and the pressure drop across the cake was determined from the evolution of the filtration rate with time in the course of the variable pressure filtration period, based on the compressible cake filtration model. The average porosity was evaluated from the significant flux decline caused by a sudden reduction in the cake surface area in the middle of the constant pressure filtration period. The pressure dependences of both the average specific cake resistance and average cake porosity were obtained from only two runs which differed from each other in the pressure profiles.

關鍵字：ultrafiltration;variable pressure filtration;cake surface area;specific cake resistance;porosity

語言：en_US

ISSN：1547-5905

期刊性質：國外

收錄於：SCI EI

通訊作者：Iritani, Eiji

審稿制度：是

國別：USA

出版型式：電子版,紙本