Abstract: The adsorptive capacity of ammonia-treated activated Prosopis Africana pod husks (APAPH) and carbonized activated Prosopis Africana pod husks (CPAPH) on atrazine was studied. All the adsorbents derived shows favorable physicochemical attributes (pH, bulk density, attrition, iodine adsorption number/surface area, titratable surface charge, SEM and FT-IR analysis). Batch adsorption studies were also carried out under the effect of operational parameters such as initial atrazine concentration (10-60 mgL-1), initial solution pH (2-12), adsorbent dosage (0.5-2.5 g), contact time (30-240 Min), and temperature (300-350 K). Depending on the adsorbents, optimal removal of atrazine was: CPAPH (66.0 %) and APAPH (56.5 %). Equilibrium adsorption data obeyed isotherm models in the order (Langmiur> Dubinin-Radushkevich>Temkin>Freundlich).