Application of pseudo-emulsion-based hollow fiber strip dispersion for the extraction of p-nitrophenol from aqueous solutions. Issue 22 (16th November 2016)

• Record Type: Journal Article
• Authors: Naidu, Gedela Ashok Kumar; Gupta, Smita; Chakraborty, Mousumi
• Is Part Of: Environmental technology. Volume 37:Issue 22(2016)
• Page Start: 2924
• Page End: 2934
• Publication Date: 2016-11-16
• Subjects: Nitrophenol extraction -- PEHFSD system -- design of experiment -- face-centered composite design -- ANOVA; Environmental engineering -- Periodicals; Environmental protection -- Periodicals; 628.05
• DOI: 10.1080/09593330.2016.1170208
• Languages: English
• ISSNs: 0959-3330

Abstract

ABSTRACT: The extraction of p -nitrophenol (PNP) from aqueous solutions through a pseudo-emulsion hollow fiber strip dispersion (PEHFSD) system was conducted in a microporous hydrophobic polypropylene hollow fiber membrane contactor. For the optimization of the process variables, face-centered central composite design (FCCD) has been used. It was observed that initial feed concentration, carrier composition and stripping phase concentration were the three FCCD factors, which influenced the nitrophenol extraction. Using the optimized process conditions for the separation of PNP, experiments were also performed for the separation of other nitrophenols through PEHFSD system. By the FCCD design and analysis, almost 99% extraction of all three nitrophenols was achieved at optimum conditions. A mass transfer model was also developed and aqueous and membrane resistances were evaluated as 196.46 s cm −1 and 50.14 s cm −1, respectively.