Congo red solution of concentrations 10mg/L, 20mg/L, 30mg/L, 40mg/L and 50mg/L were prepared. 4.0 g of groundnut shell of the prepared sample was taken in to a conical fasks containing the solutions with a known initial concentration and the solution was maintained at a constant PH and stirred until equilibrium concentration is reached. The equilibrium concentration is recorded and used for the Isotherm study. The same procedure was used to carry out the same experiment using 3.6g of sorghum husk and methylene blue dye solution and also using Congo red dye solution ( Sunday K., Amarachi I., 2022)