Hollow fiber membrane separation modules are used extensively in industry for a variety of separation processes.
We report irreproducibility analysis of miniaturized, batch, continuous stirred-tank Donnan dialyzers (CSDD) designed for a membrane-separation module of chemical analysis systems.
In order to address the irreproducibility issue, we introduce a novel, microfluidic, parallel-plate Donnan-dialytic membrane-separation module (PDMM) with recirculation tube.
Fuzzy logic-based (FL) model and Principal Component Analysis (PCA) were employed to predict permeability of C3H8, CH4 and H2 in ternary gas mixtures using a membrane gas separation module.
For several membrane separation processes, hollow fibre modules are either an already established or a promising type of module.
In order to test large sets of membranes, a HT-gas separation module was developed, allowing gas permeation and selectivity testing of 16 membranes simultaneously at different feed pressure and temperature.
Hallow fiber filter membrane (dialysis with tangential flow separation module) and peristatic pump for the purification of large amounts of contrast agent were purchased from KD Scientific, Holliston, MA, USA.
As most of the industrial membrane separation units use hollow fiber modules, having a proper model for simulating this type of membrane module is very useful in achieving guidelines for design and characterization of membrane separation units.
The results indicated that sparging the bioreactor with the CO2-concentrated fraction of the membrane separation unit (consisting of two PDMS modules) enhanced the steady-state H2 productivity (8.9 9.2 L H2/L-d) compared to the membrane-less control CSTR to be characterized with 6.96 7.35 L values values.
This new design is flexible, compact, eco-friendly, and modular and, operated in a cross flow module that ensures almost fouling-free membrane separation while overcoming the product inhibition of traditional batch fermenters.
