Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6587586 | Chemical Engineering Journal | 2013 | 8 Pages |
Abstract
This work reports the batch and dynamic flow biosorption conditions for Orange G dye using Pyracantha coccinea which was modified by a hegzadecylethyldimethylammonium bromide. Experiments were performed to determine optimum pH, biosorbent dose, contact time, temperature, dye concentration, flow rate and column internal diameter. The optimum conditions were pH 4.0 for Orange G at initial dye concentration of 100 mg Lâ1 with equilibrium time of 30 min. Under the optimized batch conditions, 95.96% dye could be removed from the solution. Kinetic data followed the pseudo-second-order model while the equilibrium data were well predicted by the Langmuir isotherm model. The maximum monolayer biosorption capacity for modified biomass was determined as 1.28 Ã 10â4 mol gâ1 at pH 4.0. The biosorbent was investigated using energy-dispersive X-ray spectroscopy and Fourier transform infra-red spectroscopy techniques. This study suggested that the modified P. coccinea could effectively be used to remove azo dyes from wastewater.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Asli Gorgulu Ari, Sema Celik,