Utilisation of Shrimp Shell as a Low-Cost Biosorbent for the Adsorption of Methylene Blue Dyes

Dye water contamination was the main challenge that pressured textile industries tremendously. The present investigation aims to employ solid waste from fisheries industries to remove toxic dye contaminants in an aqueous solution. Shrimp shell waste (SSW) was fishery waste with good potential for adsorbing dyes, one of which is methylene blue. This research studied methylene blue’s adsorption capacity using shrimp shell waste as a biosorbent. By studying several parameters, it was found that the adsorption capacity was 48.834 mg g⁻¹ at pH = 10, with an optimum concentration of 550 mg L⁻¹, a contact time of 105 min, and a heating temperature of the biosorbent 120 °C - the results of XRF characterisation shown the differences in the chemical composition percentage before and after adsorption process. The results suggested that SSW can be employed as and low-cost adsorbent for the removal of methylene blue dye from water effectively.