One of the smart methods of controlling the increasing demand for raw materials and environmental pollution is the recycling of waste. In this study, optimum conditions were determined for the conversion of wastes that will not be reused in the textile industry into functional activated carbon. For this, raw and Fe, H2SO4, H3PO4 impregnated textile wastes were carbonized at different temperatures for varying times. The molecular structure and crystal lattice of the prepared activated carbons were investigated by FT-IR and XRD analyzes, respectively. SEM and BET analyzes were used to examine the morphology and surface properties of the samples. The existence of C=C, C=O, and C–O–C functional groups was recognized by the vibrations at around 1300-1700 cm-1. A well-crystalline and porous structure was formed as a result of the carbonization of the Fe and H3PO4 pretreated samples, while the process was conducted at a lower temperature due to the catalytic effect. 25–85 mg/g methyl orange (MO) and industrial textile water (ITW) removal capacity were recorded for all samples. Efficient biochars were obtained by carbonization of waste materials while protecting the environment. Such a specific approach could be developed for each waste material for environmental and economic production