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Journal Flyer
Agrotechnology
Chemical characterization of sewage effluents repetitively used in irrigation arid region dry lands
4th International Conference on Agriculture & Horticulture
July 13-15, 2015 Beijing, China

Alaa El-Din Zaghloul, Soad El-Ashry, E Hob Allah and Saber M

Posters-Accepted Abstracts: Agrotechnol

Abstract:

Sewage effluent samples were monthly collected during the period from January to July 2012 from the main canals of Konbera (Abu-Rawash site) and Zenine (El-Motamadia site) that are frequently used in irrigating different eaten raw field and horticulture crops. Nile water samples were periodically collected from El-Khanater El-Khayria as standard irrigation water. The chemical characterization of sewage effluent and Nile water samples included pH, conductivity, SAR, soluble cations as well as potential toxic elements (PTEs) using standard analytical methods. Results confirmed significant variations in these studied chemical parameters between the two studied sewage effluents. A significant increase in EC, pH and SAR values in both sewage effluents samples compared Nile water representing save levels for irrigation water according to FAO standards were noticed. The content of PTE's in both sewage effluentsshowed that the concentrations of Cd2+, Cu2+, Mn2+ and in some months and those of Zn2+ in certain months far exceeded the safe levels found in Nile water. Despite that the Doneen parameter that estimates water quality (Cl-+0.5 SO4 2) should not exceed 5 in irrigation water; both sewage effluent samples had values higher than the safe level. Special precautions and remediation biotechnologies should be considered to minimize health and environmental hazards for such waters.