Abstract
Textile mill effluent present a high pollution potential and health risk. These effluents require prior treatment before being discharged back into the environment. The objective of this study was to eliminate three textile dyes viz. the Blue Hydron (HB), the Blue Solophenyl (SB) and the Turquoise Solophenyl (ST) by adsorption vs. Co-precipitation on hydroxyapatite (HAP) in batch mode at neutral pH and room temperature. Structural and morphological characterization was performed using FTIR and SEM analyses. The results show that the adsorption capacity is higher for the Hydron Blue (HB) compared to Solophenyl Blue (SB) which is lower than the adsorption capacity of Solophenyl Turquoise (ST). The equilibrium data fit well to the Freundlich isotherm.
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