Double layer mixed matrix membrane adsorbers improving capacity and safety hemodialysis

7th AIC‐ICMR on Sciences and Engineering 2017

自然科学;工业技术

Saiful^1 ; Borneman, Z.^2 ; Wessling, M.^3

Chemistry Department, Syiah Kuala University, Banda Aceh

23111, Indonesia^1

Department of Chemical Engineering and Chemistry, Technische Universiteit Eindhoven, Netherland, Indonesia^2

Chemical Process Engineering, RWTH Aachen University, Germany^3

关键词: Activated carbon particles;    Double-layer membrane;    Hemodialysis membranes;    Immersion precipitation;    Macroporous structures;    Mixed matrix membranes;    Phase-inversion method;    Vapor-induced phase separation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/352/1/012048/pdf
DOI  :  10.1088/1757-899X/352/1/012048

来源: IOP

【 摘 要 】

Double layer mixed matrix membranes adsorbers have been developed for blood toxin removal by embedding activated carbon into cellulose acetate macroporous membranes. The membranes are prepared by phase inversion method via water vapor induced phase separation followed by an immersion precipitation step. Double layer MMM consisting of an active support and a separating layer. The active support layer consists of activated carbon particles embedded in macroporous cellulose acetate; the separating layer consists of particle free cellulose acetate. The double layer membrane possess an open and interconnected macroporous structure with a high loading of activated carbon available for blood toxins removal. The MMM AC has a swelling degree of 6.5 %, porosity of 53 % and clean water flux of 800 Lm-2h-1bar-1. The prepared membranes show a high dynamic Creatinine (Crt) removal during hemodilysis process. The Crt removal by adsorption contributes to amore than 83 % of the total removal. The double layer adsorptive membrane proves hemodialysis membrane can integrated with adsorption, in which blood toxins are removed in one step.