الفهرس 
Water quality problemsOnly 14 pages are availabe for public view
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Abstract
All field experiments were carried out in the experimental farms at Al-Gabal Al-Asfar, El-Al-Khankah, Al-Qalyubia Governorateat at 30˚12 ̏ 07.9 N, 31˚24 ̏ 39.7 E. Laboratory experiments and all calibrations were carried out in the Irrigation Laboratory, Agric. Engineering Dep., Faculty of Agriculture, Ain–Shams University. Shoubra El- Khaima, Qalubia Governorate.
The main objective of this study:
In this study trying to find non-conventional solutions to compensate severe shortage of water by using treated wastewater and study effect on performance of irrigation systems.
Experimental treatments.
Water transmitted to the system through P.V.C. pipes and P.E. hoses by two pumps from two different source of water, where final exits in the network of irrigation systems. The main plot (20 x 45) m2 was divided into two sub plots: a) Mini sprinkler irrigation system. b) Drip irrigation system, as shown in fig (4).
a) Mini sprinkler irrigation system.
Plot (20 x 20) m2 was divided into four sections for treated wastewater and fresh water and for two mini sprinklers size, mini sprinklers are placed at distances (9 m x 9 m), at pressure 250 kPa.
b) Drip irrigation system.
Plot (20 x 25) m2 was divided into eight sections for treated wastewater and fresh water and for all different emitters, emitters are placed at distances (3 m x 3 m), at pressure 125 kPa.
The main results:
Results indicated that:
1- At the end of the experiment by using treated wastewater flow rate for emitters (2 l/h self, 2 l/h non self, 8 l/h self and 8 l/h non self) was (1.59 – 1.28 – 6.55 -7.08) l/h, respectively.
2- Emission uniformity was (80.81 – 68.75 – 83.17 – 89.39) %, for emitters respectively.
3- Accumulative clogging ratio (2.87 – 16.64), (3.21 – 37.98), (5.04 – 11.3) and (1.3 – 19.2) %, respectively.
4- At the end of the experiment by using treated wastewater flow rate for sprinklers (1.8, 2) mm was (168 – 191.5) l/h, respectively.
5- Emission uniformity was (38.8 – 51.04) %, for mini sprinklers respectively.
6- Percentage of roughness at main lines by using treated wastewater was higher than fresh water, which was (24.37) %, and sediments by using fresh water was higher than treated wastewater, which was (47.31) %. At sub main lines roughness by using treated wastewater was higher than fresh water, which was (10, 43.75) % for drip and mini sprinkler systems respectively, and sediments by using fresh water was higher than treated wastewater, which was (48.78, 6.25) % for drip and mini sprinkler systems respectively. At manifold lines roughness by using treated wastewater was higher than fresh water, which was (55.6, 98.8) % for drip and mini sprinkler systems respectively, and sediments by using fresh water was higher than treated wastewater, which was (60, 1.18) %.