Abstract
The usage of wastes of bagasse would be admirable from environmental and solid waste management point of view. Thus, herein, this data set present a facile method for providing an adsorbent from mixture of bagasse-bentonite. The prepared adsorbent was applied to remove Pb2+ from aqueous solution. It was conducted in laboratory scale using completely randomized design with variations in mixed mass ratio (1:0, 1:1, 1:2, 1:3, 2:1, 3:1), pH (2, 3, 4, 5, 6, 7) and contact time (5, 10, 30, 45, 90, 120, 180min) and the adsorption technique was batch technique. The mixed adsorbent with 3:1 of mass ratio provided the highest Pb2+ adsorption efficiency of 97.31%. The optimum pH of Pb2+ adsorption was 5 and contact time was efficient at 45min giving adsorption efficiency of 94.76% and 93.38%. The characterization data of the adsorbent were analyzed using XRF and FTIR methods. The XRF test results showed the changes of elemental content in adsorbent after the adsorption indicated that adsorbent can absorb Pb2+. The FTIR test results showed that adsorbent has a functional group that is useful in adsorption process. Adsorption of Pb2+ by adsorbent from mixture of bagasse-bentonite follows pseudo second order model with correlation coefficient value of 99.99% (R2 = 0.9999) and Freundlich isotherm model with correlation coefficient value of 90.05% (R2 = 0.9005). The acquired data indicated that the adsorption of Pb2+ by the adsorbent prepared from mixture of bagasse-bentonite is a promising technique for treating Pb-bearing wastewaters.
Highlights
Characterization, kinetic, and isotherm data for adsorption of Pb2þ from aqueous solution by adsorbent from mixture of bagasse-bentonite
The acquired data indicated that the adsorption of Pb2 þ by the adsorbent prepared from mixture of bagasse-bentonite is a promising technique for treating Pb-bearing wastewaters. & 2017 The Authors
The first step of preparing the adsorbent of bagasse-bentonite is to mix bagasse and bentonite that have been weighed in accordance with the ratio of 3:1
Summary
Image, figure – The uptake of Pb2þ by the adsorbent (qe) was determined based on the subtraction of the initial and final concentration of adsorbate – Fourier transform infrared (FTIR) spectroscopy (Shimadzu, IRPrestige 21), X-ray fluorescence (PANalytical, Minipal 4) was used for determine the characteristics of the adsorbent – The Pb2 þ concentration measurement was performed by Atomic Absorption Spectrophotometer (Shimadzu, AA-7000) Analyzed – The adsorbent of bagasse-bentonite was prepared from mixture of bagasse and bentonite that have been weighed in accordance with the ratio of 3:1 – The adsorbent of bagasse-bentonite was heated in the oven at 105 oC for 24 h until the mixture is already dry – Data of bagasse-bentonite were acquired for Pb2 þ removal from aqueous solution The adsorbent of bagasse-bentonite for Pb2 þ adsorption from aqueous solution. The data of kinetics and isotherms for adsorption of lead ions onto the mixture of bagasse-bentonite is presented Tables 3 and 4. Qe and qt are amount of adsorbate which adsorbed (mg/g) at equilibrium and at t (min), qm is maximum adsorption capacity of the adsorbent (mg/g), k1 is the pseudo-first-order adsorption rate constant (min-1), k2 is the pseudo-second-order adsorption rate constant (g/mg min), kint is intra-particle diffusion rate constant (mg/g min0.5), Ce is concentration of adsorbate in the solution at equilibrium (mg/L), KL is Langmuir constant (L/mg), Kf is Freundlich constant (mg/g), and n is adsorption intensity.
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