The effluent water of any industries such as textile, leather, paper, printing, cosmetic, etc. contains large amount of hazardous dyes. There is a huge number of treatment processes as well as adsorbents that are available in low-cost adsorbents for the removal of hazardous dyes from aqueous waste by adsorption treatment. In this study, a thermally treated eggshell was used as an adsorbent to remove methyl orange from an aqueous solution. All operating parameters like; adsorbent dose, contact time, particle size, and initial concentration of methyl orange were effective in their removal efficiency of the dye.

The effluent water of any industries such as textile, leather, paper, printing, cosmetic, etc. contains large amount of hazardous dyes. There is a huge number of treatment process as well as adsorbent which are available in low cost adsorbents for the removal of hazardous dyes from aqueous waste by adsorption treatment. In this study, thermally treated egg shell was used as an adsorbent for the removal of methyl orange from an aqueous solution. All operating parameters like; adsorbent dose, contact time, particle size and initial concentration of methyl orange were effective on their removal efficiency of the dye.