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Mixed Matrix Membranes Adsorbers (MMMAs) for the Removal of Uremic Toxins from Dialysate
- Source :
- Membranes; Volume 12; Issue 2; Pages: 203
- Publication Year :
- 2021
-
Abstract
- We developed Mixed Matrix Membrane Adsorbers (MMMAs) formed by cellulose acetate and various sorbent particles (activated carbon, zeolites ZSM-5 and clinoptilolite) for the removal of urea, creatinine and uric acid from aqueous solutions, to be used in the regeneration of spent dialysate water from Hemodialysis (HD). This process would allow reducing the disproportionate amount of water consumed and permits the development of closed-loop HD devices, such as wearable artificial kidneys. The strategy of MMMAs is to combine the high permeability of porous membranes with the toxin-capturing ability of embedded particles. The water permeability of the MMMAs ranges between 600 and 1500 L/(h m2 bar). The adsorption of urea, the limiting toxin, can be improved of about nine times with respect to the pure cellulose acetate membrane. Flow experiments demonstrate the feasibility of the process in a real HD therapy session.
- Subjects :
- Porous mixed matrix membrane adsorber
Zeolite
porous mixed matrix membrane adsorbers
uremic toxins
urea
zeolite
activated carbon
water purification
dialysis
Uremic toxin
Water purification
Activated carbon
Process Chemistry and Technology
Dialysi
Urea
Chemical Engineering (miscellaneous)
Filtration and Separation
Subjects
Details
- ISSN :
- 20770375
- Volume :
- 12
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- Membranes
- Accession number :
- edsair.doi.dedup.....9f442f0147fe38057de72f7e4d0a02b9