The article presents the results of a study of the sorption properties of silicon dioxide obtained from overburden rocks for use in the removal of methylene blue, an organic cationic thizian dye, from aqueous solutions. The aim of the study was to evaluate the sorption properties of silica and its efficiency in the removal of methylene blue from aqueous solutions. Experimental data showed that the sorption efficiency depends on temperature, pH and stirring speed. It was found that increasing pH and stirring speed promotes sorption enhancement, while increasing temperature decreases sorption efficiency. In addition, the possibility of regeneration of silica after sorption was investigated and it was shown that its sorption properties are practically unchanged after several cycles of use. The maximum sorption capacity was 515.9 μmol/g. In a previously published paper, under standard conditions, the maximum sorption capacity was 438.22 μmol/g. The results emphasize the potential of silica as an effective and sustainable sorbent for the removal of organic dyes from wastewater. Thus, silica can be recommended for multiple use in wastewater treatment processes due to its high thermal stability and durability.