 An inexpensive and effective adsorbent has been developed from raw olive stone, O.S., to remove methylene blue, M.B., from an aqueous solution. The O.S. adsorbent is characterized using scanning electron microscopy, S.E.M., Fourier transform infrared, F.T.I.R., and Bruno-Emitella, BET, surface area. For isotherms are used to fit equilibrium adsorption data, and four kinetic models are used to simulate kinetic adsorption behavior. The obtained BET surface area is 0.9 square meters G1, and the S.E.M. analysis reveals significant pores in the O.S. sample that might facilitate the uptake of heavy compounds. The Langmuir and Temkin isotherm models best represent the adsorption of M.B. on the O.S., with a maximum monolow adsorption capacity of 44.5 milligrams G1. The best dye color removal efficiency by the O.S. is 93.65% from an aqueous solution of 20 ppm at the O.S. doses of 0.2 G for 90-minute contact time. The O.S. adsorbent serves in five successive adsorption cycles after a simple filtration washing drying process, maintaining M.B. removal efficiency of 91, 85, 80, and 78% in cycles 2, 3, 4, and 5, respectively. The pseudo-second-order model is the best model to represent the adsorption process dynamics. According to the thermodynamic analysis, dye adsorption by the O.S. is endothermic and spontaneous. Therefore, the O.S. material offers an efficient adsorbent for M.B. removal from wastewater that is less expensive, more ecologically friendly, and economically viable. This article was authored by Saja Emiladi, Hussain G. Soler, Nisreen Esali and others. We are article.tv, links in the description below.