The present study focused on the synthesis of goethite (α-FeO(OH)) using iron recovered from acid mine drainage (AMD) from the Quiulacocha environmental liability, located in the city of Cerro de Pasco, Perú. Selective precipitation was used to recover iron, controlling the pH between 2.5 and 4, which allowed the formation of Fe (III) oxide-hydroxide. Subsequently, the precipitate obtained was subjected to heat treatment, resulting in the formation of goethite with an average Fe(III) content of 62%. The ratio between the iron (III) present in the AMD and hydroxide anion contributed by sodium hydroxide (Fe/OH) during selective precipitation was identified as a critical factor in the synthesis of goethite. Additionally, tests were carried out to evaluate the efficiency of the synthesized goethite by applying it in the removal of phosphorus from aqueous solutions. The results showed a removal capacity of 91.8% under specific conditions of pH 4, temperature of 70 ℃, reaction time of 55 min and an Fe/OH ratio of 0.3 molar. These findings suggest that the obtained goethite has a high potential for environmental control applications, specifically in the mitigation of pollutants such as phosphorus in water bodies.