Fabrication of nanofiltration membranes with tunable separation characteristics using methods of uniform design and regression analysis

Optimization of Membrane Formulation and Process Variables via Crossed-Design Concept in Design of Experimental (DOE)

“…The membrane is targeted to have as high a porosity as possible in order to increase the interconnection between the membrane pores and consequently hasten the lateral wicking speed of the membrane. In order to get those membrane's characteristics, there is a need to understand the membrane formation mechanism, which is based on the casting formulation and the casting conditions that are used in the fabrication process (4). The formation mechanism was said to be rather complex as there are various fabrication factors to be considered during the casting stage (7), for example, mixture factors that should be taken into account including the choices of casting materials, composition of casting materials and the gelation-crystallization behaviour of the polymer (5,(8)(9)(10).…”

“…Some researchers have tried to optimize their membrane formulation (4,16,17) and performances (18,19) by using mathematical processing methods such as mixture and factorial design. In mixture experimental design, the total number of the components is held constant.…”

Formulation of Mixed-Matrix Membrane (PSF/Zeolite) for CO<SUB>2</SUB>/N<SUB>2</SUB> Separation: Screening of Polymer Concentration

“…To date, many researches have examined to improve and optimize the membrane morphology [14]- [16] and gas separation attainment [17] through a statistical approach. In the research, the further investigation on the interaction of mixed matrix membrane variables is statistically designed with minimum experimental runs to locate ideal setting of mixture concentration factors for improving permeability of CO 2 and N 2 as well selectivity of CO 2 over N 2 .…”

Optimization of morphology and perf ormance of PVDF hollow fiber for direct contact membrane distillation using experimental design

“…Lam Leung et al applied the uniform design-non-linear model (UD-NLM) to guide their work in preparing PSU UF membranes (Lam Leung et al, 1998). In the work by Chan and Tsao, more than 70% of NF membrane response predicted using the UD model analysis based on 24 points incorporating 5 predicator variables has been validated by the real experiments (Chan and Tsao, 2003).…”