With regard to the lack of water in Iran, new and secure replacement of water resources should be considerd. Using urban refined sewage in agriculture and urban greenbelt reduces the pressure on water resources. The usage of purified sewage through drip irrigation system is the safest way for decreasing the effect of sewage misuse in the environment and humans health. Filteration system is the main part of drip irrigation systems and in making filter the most important part is the selection absorbent. This study aims at checking the practicality of geotextile filters with zeolite , antheracite coal and sand minerals as absorbent and filters in lowering the amount of nitrat (NO 3 ), turbidity, Total of Suspended Solid (TSS), Total of Dissolved Solids (TDS), Electrical Conductivity (EC) and pH of the sewege of Isfahan University of Technology. In this research, an expriment with three replicate were carried out with a completely random design of 13 treatments including 700 gram in square meters geotextile, 500 gram in square meters geotextile, 350 gram in square meters geotextile, sand, zeolite , antheracite coal, sand+ zeolite + antheracite coal, zeolite + sand+ antheracite coal, geotextile+ sand, geotextile+ zeolite , geotextile+ antheracite coal, geotextile+ sand+ zeolite + antheracite coal and geotextile+ zeolite + sand+ antheracite coal. The expriment was done in columns by using a column of 125 mm diameter and 75 cm height. The results demonstrated the effectiveness of each 13 treatments in decreasing the TSS and turbidity. Geotextile + sand+ zeolite + antheracite coal and geotextile+ zeolite + sand+ antheracite coal treatment had the best results in the reduuction of TSS with respectively 59% deletion and the treatments of antheracite coal and geotextile+ antheracite coal showed the best performance in the reduuction of turbidity with the deletion of 62% and 59% respectively. The 700 gram in square meters geotextile, 500 gram in square meters geotextile, 350 gram in square meters geotextile, sand and geotextile+ sand treatments had not impact on NO 3 absorption and the best performance in reducing NO 3 was observed in geotextile+ zeolite treatment with 23% deletion. The treatments of this expriment had less effect in TDS and EC deletions and they also did not affect the improvement of sewage pH parameter. In terms of the amount of exited sewage, the sand+ zeolite + antheracite coal treatment had the best efficiency among all treatments with the purification of 91.8 cube meter sewage in the square meters unit and the worst operatiom was seen in the treatments of geotextile filters. In general, multilayered filters had a much better performance than the monolayered ones. Although the geotextile filters, by themselves, did not have a high performance in the improvement of the studied factors,but in combination with the medium of other filters, they raised the proper performance time of filter and the deletion percentage of under study factors. Keywords : Ecentric water, Filteration, Geotextile, Sand, Zeolite , Antheracite coal