This study tries to develop an inexpensive and advantageous adsorbent for the treatment of waters contaminated with aniline, using newly prepared NH₄Cl-induced activated carbon (NAC). It also reports the results obtained by comparing the sorption properties of NAC with those of the commercially granular standard activated carbon (SAC). To determine the structural properties of NAC and SAC, the techniques of pH_zpc, Fourier Transform Infrared Spectroscopy, BET, EDX, and SEM were used. The effect of various parameters like adsorbent dose, pH, contact time, and initial aniline concentration were carefully studied. The results showed that prepared NAC had a mesoporous structure and its adsorption capacity was higher than SAC so that the maximum adsorption capacity of aniline onto NAC and SAC was 1,666.7 and 1,000.0 mg/g, respectively. The results of equilibrium and kinetic experiments indicated that adsorption process of aniline onto both SAC and NAC fitted with the Langmuir isotherm model and pseudo-second-order models respectively. Entirely, it can be concluded that the developed NAC can be as a convenient, inexpensive, appropriate and alternative adsorbent for native Merck standard carbon for treatment of organic pollutants such as aniline from waters or wastewaters.