The most common practice for the disposal of tailings is the subaquatic and has become a subject increasingly important and indispensable in the management of dams and operational continuity of mining plants due mainly aspects as: environmental, safety, social, economic, etc. The thickening and filtration techniques are presented as alternatives for the dewatering of tailings. The main objective of this research is to present an alternative different of the techniques mentioned through the use of dewatering polymers development recentily. A tailings around 10% solids in mass and fine granulometry with size less 70 mu m were evaluated in laboratory scale through tests: column thickener, filtration (horizontal press filter) and aplication of dewatering polymers. Was obtained paste with 52% solids in mass and cake moisture less of 25% for thickening and filtering respectively. Through the use of dewatering polymers was possible initially release over 70% of the water contained in the tailings and obtain results similar that the other techniques with the disposal time. The results showed that is possible the application of this technological alternative and allowed establish a comparison of the advantages and disadvantages among the others techniques mentioned.