A full factorial design-based desirability function approach to investigate the transport of Ni2+, Co2+, Cr3+ and Zn2+ through polymer inclusion membranes
Year: 2023
Type: article
Abstract: In the present study, the full factorial design methodology was used to investigate and optimize the operating conditions of a membrane process involving polymer inclusion membranes (PIMs), for the competitive removal of Ni 2+ , Co 2+ , Cr 3+ and Zn 2+ from aqueous solutions. The effects of three parameters: initial concentration of metals (X 1 ), extractant content (X 2 ) and membrane thickness (X 3 ) were investigated on the matter fluxes crossing the PIMs (J i ), the amount of metal ions fixed within them ( f ), and transferred through them ( t ). The study revealed that: (1) the selectivity order of metal ions crossing the synthesized PIMs is: Zn > Ni > Cr > Co, (2) the order of significance of the effects is: X 1 > X 2 > X 3 , (3) X 1 and X 2 have positive effect on J, f and t while X 3 has a negative effect on J and t , and (4) the estimated models for the responses fit the experimental data adequately (determination coefficient: R 2 = 84.70%-99.99%; standard deviation: SD = 0.0021 -1.58). The desirability function-based optimization indicated that: J max and tmax are obtained for X 1max (200 ppm), X 2max (60% w/w) and X 3min (50 m), for a desirability value of 0.93 and 0.81, respectively, while fmax is obtained for X 1max , X 2max and X 3max (65 m), for a desirability value of 0.93.
Source: Desalination and Water Treatment
Language: English
Subfield: Metals and Alloys
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $1,000
OpenAlex ID: W4390149239