Sorptive removal of Pb(II) ions from aqueous solution using sweetmeat waste: Batch and column study. Issue 2 (22nd January 2018)

• Record Type: Journal Article
• Authors: Islam, M. M.; Adak, A.; Paul, P. K.
• Is Part Of: Separation science and technology. Volume 53:Issue 2(2018)
• Page Start: 219
• Page End: 229
• Publication Date: 2018-01-22
• Subjects: Heavy metal -- Pb(II) -- sorption -- sweetmeat waste -- kinetics; Separation (Technology) -- Periodicals; 660.284205
• DOI: 10.1080/01496395.2017.1386215
• Languages: English
• ISSNs: 0149-6395

Abstract

ABSTRACT: This article deals with removal of Pb(II) ions from aqueous media using sweet industry byproduct, that is, sweetmeat waste (SMW). The SEM images revealed highly heterogeneous sorbent surface. XRD and FTIR studies were done. The sorption equilibrium time was found 45 min only, and the sorption followed pseudo-second-order reaction model, indicating chemisorption as the rate-limiting step. Pb(II) removal followed Langmuir isotherm model best, and the maximum sorption capacity was 11.38 mg/g. The fixed bed column study was performed and analyzed using Logit, Bohart-Adams and Wolborska models. The sorption rate and capacity constants were 0.143(±0.017) L/mg.h and 39(±7) mg/L, respectively.