Scanning electron microscope (SEM), X-ray diffraction (XRD), and Fourier-transform infrared spectroscopy (FTIR) were applied to analyze the surface-modified biochar. The potential of the produced adsorbent was investigated as a function of contact time, pH of solution, quantity of adsorbents, and initial concentrations of adsorbates for the removal of methylene blue and malachite green dye from textile effluent. To analyze and explain the adsorption mechanisms, numerous kinetic and isotherm models were put to the test. Biochar that has been functionalized may eliminate methylene blue 97% of the time (0.03g/25). Like that, 0.06g/25 ml of functionalized biochar may remove 95% of the maximal amount of Malachite Green. Surface Functionalized biochar showed high pollutant removal efficiency with maximum removal of % for MG and % for MB dye. Kinetic studies showed that pseudo-second-order kinetic models exhibited reliable agreement with kinetic investigational data as compared with other kinetic models. The linear Isotherm models showed that Freundlich, and Temkin isotherms are finest suited on the sorption of Dyes with R 2 = 0.998. The outcomes of this survey showed that the prepared adsorbents can be effectively used for numerous cycles to remove MG and MB from textile wastewater on pilot scale.