Soil materials are essential resources in the treatment of water and wastewater. In this study, Odaracha soil has been characterized and used as a novel low-cost green technology in removing turbidity and heavy metals (Cr and Pb2+) contamination from wastewater. The surface morphology of Odaracha adsorbent was characterized by Scanning Electron Microscopy, Fourier Transform Infrared Spectroscopy, and X-ray powder diffraction. The adsorption experiment was undertaken in a batch mode and to optimize the adsorption efficiency of Odaracha adsorbent contact time, pH, adsorbent dose, and initial concentration of the adsorbate were tested thoroughly. A coagulation experiment was carried out following a standard procedure. Response surface methodology was also applied to optimize the process and estimate the operating variables' interaction influence. rnThe results showed that under optimum experimental conditions, the adsorbent removes 94.7% of Cr from an aqueous solution having 110 mg/L of Cr concentration. As indicated in the mathematical modeling results of response surface methodology, the combined effects of contact time and solution pH has a significant adverse impact on the chromium removal efficiency. On the contrary, the interaction effects of contact time and adsorbent dose has a significant positive impact on chromium removal efficiency. On the other hand, at optimum experimental conditions, Odaracha adsorbent removed 98.2% of lead ions. Based on the result of the central composite design model, the Pb2+ ion removal efficiency of Odaracha was 97.2%, indicating an insignificant dissimilarity of the actual and prediction result. The adsorption kinetics was perfectly fitted with the pseudo-second-order model, and the adsorption isotherm was well fitted with the Freundlich isotherm model. rnrnAccording to the experimental result of this study, at the optimum condition, the turbidity removal efficiency of Odaracha was 88.5%. In contrast, the predicted turbidity removal efficiency was 90.5%, which indicates the consistency between the actual and the anticipated results. Correspondingly the R2 value (0.9922) confirmed a high correlation between the real and predicted values. The quadratic model's actual and predicted results confirmed the turbidity removal capability of Odaracha and the significant effects of all the individual parameters and their interaction effects (except the interaction between the dose and settling time). Generally, this study suggested that Odaracha soil can be considered a useful and potential natural material for removing chromium, lead, and turbidity.