Vol. 1, Issue 5 (2014)
Removal of p-nitrophenol and p-nitroaniline by benzyldimethylhexadecylammonium -bentonite from single and binary solute systems via response surface methodology.
Author(s): Nwokem C.O., Gimba C.E., Ndukwe G.I., Abechi S.Ei
Abstract: Removal of p-nitrophenol and p-nitroaniline from single and binary solute systems by Benzyldimethylhexadecylammonium-bentonite using the response surface methodology was studied. The effect of four independent variables; pH, an adsorbate concentration, solid: liquid ratio (S:L) and Time were investigated; linear and quadratic models were developed for the process. The optimum conditions obtained for the single solute system were pH of 7.99, an adsorbate concentration of 2.00 mg/dm3, solid: liquid ratio of 5.0, time of 120 mins and removal efficiency of 42.63% for p-nitroaniline and pH of 7.98, an adsorbate concentration of 2.00 mg/dm3, solid: liquid ratio of 5.00, time of 119.62 mins and removal efficiency of 95.10% for p-nitrophenol. The optimum conditions obtained for the binary solute system were pH of 5.08, adsorbate concentration of 1.00 mg/dm3, solid: liquid ratio of 5.0, time of 120 mins and removal efficiency of 63.49% for p-nitroaniline and pH of 7.92, an adsorbate concentration of 1.15 mg/dm3, solid: liquid ratio of 4.62, time of 119.87 mins and removal efficiency of 93.93% for p-nitrophenol.
Fig. 1: Study map showing area where clay samples were collected
Pages: 63-67 | 1665 Views 116 Downloads
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How to cite this article:
Nwokem C.O., Gimba C.E., Ndukwe G.I., Abechi S.Ei. Removal of p-nitrophenol and p-nitroaniline by benzyldimethylhexadecylammonium -bentonite from single and binary solute systems via response surface methodology.. Int J Chem Stud 2014;1(5):63-67.
