Bioremoval of Methylene Blue from Aqueous Solutions by Green Algae (Bracteacoccus sp.) Isolated from North Jordan: Optimization, Kinetic, and Isotherm Studies

Algae provide an alternative, sustainable, and environmentally beneficial method of dyetreatment. In this study, algae were successfully used to remove methylene blue (MB) from aqueous solutions. The effects several parameters, such as initial concentration MB (5–25 mg L−1), dosage (0.02–0.1 g mL−1), temperature (4, 20, 30 °C), contact time (24, 48, 72 84 h), on removal investigated. addition, the characterization before after treatment was achieved using UV-spectrophotometer Liquid chromatography-mass spectrometry (LC-MS). experimental data applied three kinetic models, namely pseudo-first-order, pseudo-second-order, Elvoich. Moreover, Langmuir, Freundlich, Dubinin–Raduskevich (D–R), Temkin isotherm models tested. maximum efficiency (~96%) accomplished at optimum conditions (15 (30 (0.06 mL−1) 60 min time. follows pseudo-second-order model (R2 > 0.999), is best fitted by Langmuir 0.9300).