Use of Insect-Derived Chitosan for the Removal of Methylene Blue Dye from Wastewater: Process Optimization Using a Central Composite Design

Insects are a readily available source of chitosan due to their high reproductive rates, ease breeding, and resistance changes in ecosystem. This study aimed extract from several widespread insects: Blaps lethifera (CS-BL), Pimelia fernandezlopezi (CS-PF), Musca domestica (CS-MD). The was also extended using the obtained chitosans removing methylene blue dye (MB) wastewater. chitosan, initial concentration MB dye, reaction time were chosen as working parameters. experiments designed central composite design (CCD) based on removal efficiency response variable. experimental work statistical calculation CCD showed that ranged 35.9% 88.7% for CS-BL, 18.8% 47.1% CS-PF, 10.3% 29.0% CS-MD at an 12.79 mg/L. highest CS-BL 120 min. indicates extraction insects (Blaps lethifera) its application is promising, environmentally friendly, economical, biodegradable, cost-effective process. Furthermore, technique can be used optimize process variables other organic pollutants chitosan.