Enhanced Sequestration of Synozol ds Red onto Treated Turbinria Vulgaris from Waste Water: Statistical Optimization

In the present study, removal of synozol ds red dye from waste water using treated Turbinaria vulgaris (T. vulgaris) was investigated. The biosorbent morphology, functional groups presence before biosorption and shifting of groups after the biosorption were analyzed by Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR). Response Surface Methodology (RSM) was used for the optimization of the selected parameters like pH (3–8), initial dye (20–100 mg L−1) and biosorbent dosage (0.1–0.5 g). The variables, impact on the removal of synozol ds red was analyzed from 3D graphs. The findings were well suited by Langmuir isotherm and pseudo-second-order models and the maximum biosorbent coverage was 30.3 mg g−1. Intraparticle and liquid film diffusion were rate limiting steps in the removal of synozol ds red. Therefore, treated T.vulgaris could be utilized as potential biosorbent for elimination of coloring agents from textile industrial effluents.