Optimization of Sorption Parameters for Color Removal of Textile Dye by Cross-linked Chitosan Beads Using Box-Behnken Design

Abstract

Abstract. Cross-linked chitosan-epichlorohydrin beads (CEB) was prepared and studied for the removal of Reactive Red 4 (RR4) from textile industry. The effect of parameters such as adsorbent dosage (A: 0.5-1.5 g/L), pH (B: 4-10) and time of contact (C: 30-80 min) on the color removal of RR4 was investigated using response surface methodology (RSM) based on Box-Behnken surface statistical design at an initial RR4 concentration, Co = 100 mg/L as a fixed input parameter. The results of RSM indicated that the proposed model predicted the responses adequately within the limits of input parameters being used. Regression analysis showed good fit of the experimental data to the second-order polynomial model with coefficient of determination (R 2 ) value of 0.9958 and Fisher F-value of 185.36. Optimization of adsorbent dose (1.0 g/L), pH (4.0), and contact time (80 min) gave a maximum of 70.53% RR4 removal by CEB.

Adsorptive removal of methylene blue by chemically treated cellulosic waste banana (Musa sapientum) peels

“…Textile, rubber, paper, plastics, leather and food industries use dyes to colour their products while remaining unspent dyes are settled into natural water bodies. The discharge of dye-contained wastewaters into ecosystem is a dramatic source of aesthetic pollution, eutrophication and perturbation in aquatic life as most of dyes are highly visible, stable and unaffected to chemical, photochemical as well as biological degradation [1][2][3].…”

Enhancing the Decolorization of Methylene Blue Using a Low-Cost Super-Absorbent Aided by Response Surface Methodology

“…This approach can also be applied for the investigation of the effect of independent variables (factors) on the process and their influence on a dependent variable (response) [ 30 ]. BBD–RSM has been used to optimize adsorbate removal using AC prepared from agriculture waste [ 31 , 32 , 33 , 34 , 35 , 36 ], zeolite [ 37 ], and biopolymers [ 38 ]. Nevertheless, to the best of the authors’ knowledge, no study has been conducted for the optimization of synthetic dye removal using AC prepared from OPT.…”

FeCl3-Activated Carbon Developed from Coconut Leaves: Characterization and Application for Methylene Blue Removal

“…The discharge of dye-contained wastewaters into ecosystem is a dramatic source of aesthetic pollution, eutrophication and perturbation in aquatic life as most of dyes are highly visible, stable and unaffected to chemical, photochemical as well as biological degradation (Jawad et al 2017a(Jawad et al , 2016aMubarak et al 2017). Methylene blue (MB) is a basic dye with favorable water solubility and the most commonly used for dyeing of textiles and leather, printing calico, printing cotton and biological staining methods (Jawad et al 2016b).…”