A master's dissertation was discussed in the College of Environmental Sciences and Technologies, University of Mosul on the evaluation of red modified mud as an inexpensive adsorbent for removing textile dyes and heavy metals from polluted water by the postgraduate student, Mrs. Shaima Abdul-Sattar Abdul Mohsen Al-Talbi. The dissertation aimed at testing the efficiency of red axis clay as an adsorbent material due to its abundant availability in the Iraqi soil composition in removing textile dyes and heavy metals, studying the adsorption of pigments (Methlen blue (MB) and Methyle Orange (MO) on clay surfaces the red axis as an adsorbent and the reviewing conditions affecting the efficiency of the adsorption process for dyes MB and M.O. in terms of the effect of the acidity function, the concentration of the adsorbent, the adsorbent substance, the temperature and time and their control to give the highest adsorption of the dye. The dissertation demonstrated studying of the most important concepts about polluted water, heavy metals, textile dyes and techniques used in the treatment of polluted water represented by reverse osmosis, biological methods and adsorption, as well as coagulation, saturation with ozone and the types of adsorbents that mix with red clay, which is activated carbon, silica gel and zeolite. The dissertation reviewed a study of the adsorption of heavy metals, such as lead and manganese on the surface of the modified clay as an adsorbent and the conditions affecting the adsorption process to reach the maximum value of adsorption on the surface of the modified red clay.