dc.contributor.author | Gurdag, Gülten | |
dc.contributor.author | Kaya, Yasemin | |
dc.contributor.author | Soltobaeva, Gulzada | |
dc.contributor.author | Cavus, Selva | |
dc.contributor.author | Vergili, Ilda | |
dc.contributor.author | Gonder, Z. Beril | |
dc.date.accessioned | 2021-03-06T11:18:56Z | |
dc.date.available | 2021-03-06T11:18:56Z | |
dc.date.issued | 2013 | |
dc.identifier.citation | Vergili I., Soltobaeva G., Kaya Y., Gonder Z. B. , Cavus S., Gurdag G., "Study of the Removal of Pb(II) Using a Weak Acidic Cation Resin: Kinetics, Thermodynamics, Equilibrium, and Breakthrough Curves", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, cilt.52, ss.9227-9238, 2013 | |
dc.identifier.issn | 0888-5885 | |
dc.identifier.other | vv_1032021 | |
dc.identifier.other | av_ee729dde-0741-452f-abe0-f37411248577 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12627/156532 | |
dc.identifier.uri | https://doi.org/10.1021/ie400630d | |
dc.description.abstract | This study presents a method for the removal of Pb(II) from aqueous solution in batch and column modes using a commercial weak acidic cation (WAC) resin (Lewatit CNP80). Batch experiments carried out under different conditions yielded optimum conditions of pH = 5, t = 360 min, and m = 0.05 g (1 g L-1). The mechanism of ion exchange was studied using isotherm, kinetic, and thermodynamic models. The good fit of the Koble-Corrigan isotherm model indicates both heterogeneous and homogeneous sorption of Pb(II) on the resin. The concentration of Pb(II) in the solution had a strong influence on both the diffusion kinetics and the mechanism controlling the kinetic coefficient The fit of the experimental data to the pseudo-second-order model indicated that the reaction is affected fundamentally by Pb(II) concentration, whereas temperature did not result in a significant change. The Gibbs free energy change (Delta G degrees) values were negative, corresponding to a spontaneous process of Pb(II) ion sorption onto the WAC resin. The S-shaped breakthrough curves from the column studies show that most of the resin capacity was used up to the breakthrough point. Clean and Pb(II)-loaded WAC resins were characterized on the basis of zeta-potential measurements, Fourier transform infrared spectrum (FTIR) spectral study, thermogravimetric analysis (TGA), and environmental scanning election microscopy (ESEM) images. The O-H and C-O stretching of the carboxylic acid groups and the C-O-C stretching groups were the main functional groups of the WAC resin participating in the Pb(II) binding. A visible change in the surface morphology observed from the ESEM images showed some fouling, an indicator of the 28% irreversible loss of capacity after regeneration It can be concluded that ion exchange with WAC resin is a satisfactory process for Pb(II) removal especially for low concentrations. | |
dc.language.iso | eng | |
dc.subject | Mühendislik, Bilişim ve Teknoloji (ENG) | |
dc.subject | Mühendislik ve Teknoloji | |
dc.subject | MÜHENDİSLİK, KİMYASAL | |
dc.subject | Mühendislik | |
dc.subject | Kimya Mühendisliği ve Teknolojisi | |
dc.title | Study of the Removal of Pb(II) Using a Weak Acidic Cation Resin: Kinetics, Thermodynamics, Equilibrium, and Breakthrough Curves | |
dc.type | Makale | |
dc.relation.journal | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | |
dc.contributor.department | İstanbul Üniversitesi , , | |
dc.identifier.volume | 52 | |
dc.identifier.issue | 26 | |
dc.identifier.startpage | 9227 | |
dc.identifier.endpage | 9238 | |
dc.contributor.firstauthorID | 39556 | |