TREATMENT OF WATER FROM IRRIGATION DRAINAGE BY MULTIMEDIA FILTRATION

Abstract

In this research, the possibility of water treatment for agricultural irrigation drainage channels was studied included Al-Dawoodi main agriculture irrigation water channel and the KSD main agriculture irrigation water channel polluted with the sewage water. The treatment was carried out using multi-media filtration technology with (three-layer) (commercial coal, coarse sand and mix ion exchange) at three flow rates (0.24, 0.32, 0.48) m³/hr for contact time (two hours), the comparing of analysis results before and after treatment showed that the best removal for both channels was obtained from the lowest flow rate (0.24 m³/hr) after contact time (two hours) for (EC, TDS, TSS, COD, BOD5, heavy metals (Na, Mg, Ca, Cl, So4)) as KSD water channel by (67%, 61.1%, 95.2%, 82.6%, 81%, 65.2%, 73.3 %, 62%, 58.2%, 62.2%), respectively, and for Al- Dawoodi water channel by (60%, 50.2%, 94.1%, 84.4%, 85.1%, 61%, 60%, 63%, 56%, 58%), respectively, also improves the SAR while pH before and after treatment was within Irrigation standards. Then the results were compared with the internationally approved standards for irrigation.