Heavy metal pollution in water systems continues to pose a serious environmental and public health challenge because of the persistence, bioaccumulative nature, and toxicity of metals such as Pb(II) and Cd(II). Conventional remediation methods are often costly and may generate secondary pollutants, necessitating the development of low-cost, sustainable alternatives. In this study, date pits, an abundant agricultural waste, were examined for their capacity to act as an effective bioadsorbent for the removal of Pb(II) and Cd(II) ions from aqueous solutions. The date pits were washed, dried, milled, and chemically activated with sodium bicarbonate to enhance their adsorption efficiency. We carried out physicochemical characterization bulk density, moisture content, pH measurements, and FTIR analysis, to identify the moiety that may take up metal. Batch adsorption tests were run to see how retention time, initial metal concentration, and temperature affected removal. The results showed that those operating parameters had a strong influence, with the best uptake occurring around neutral pH. Equilibrium data fit the Langmuir isotherm well, suggesting monolayer adsorption on a fairly uniform surface, while the Freundlich model also pointed to some surface heterogeneity. The maximum adsorption capacities for Pb(II) and Cd(II) indicate a strong affinity between the activated date pits and the metal ions. Overall, activated date pits proved to be an effective, inexpensive, and environmentally friendly biosorbent with real potential for treating water contaminated with heavy metals.