DESIGN AND EVALUATION OF MAGNETIC UNIT FOR TREATING SALINE WATER UNDER DRIP IRRIGATION SYSTEM

Abstract

The lack of water is a big problem facing Egypt is likely to worsen in the future as a result of continuously increasing thepopulation. Also, climate change and the deterioration of the quality of water resources, since the majority of renewable water resources in Egypt is agriculture mainly. But the other types of water resources (non-renewable) cannot benefit from them, where the costs are too high, and is what makes their use impossible choice, as it is likely to cause competition from other sectors in reducing agriculture's share of water resources in general. Therefore, it is a must t looking for new ways to address the salty water to use in agriculture. Egypt has an abundance of salty water either naturally and /or resulted form over sue of thewell and most important of these methods is use the magnetic in salt water treatment. There are several ways to generate a magnetic field, including the following :Using a permanent magnetic field of permanent magnet through using an electric field to generate a magnetic field which is the so-called electromagnetic induction, where that when interrupt the electric field coil wire carries electric current it leads to the generation of a magnetic field according to the base of the right hand and from the AMP-induced magnetic field is generated, and/or the work of the device so that the field is perpendicular to the direction of water flow and not parallel to it. After the electromagnetic device establishedit is evaluated in the lab and results showed that: The average decreasing percentage in water electric conductivity (WEC) was 14.7 % by using 2000 Gauss magnetic field force, and 32.9 % by using 4000 Gauss magnetic field force. This meaning that 4000 Gauss has a double effect on saline water relative to 2000 Gauss. The average decreasing percentage in DCV was 5.33 % by using 2000 Gauss magnetic field force, and 3.36 % by using 4000 Gauss magnetic field force. This meaning that 4000 Gauss has a double effect on saline water relative to 2000 Gauss. Data revealed that the highest values of germination rate were attained under canal water while the lowest ones were recorded after 4000 ppmtreated or not by magnetic force. Barley seeds had a highly response whether for salinity water or treated magnetic one, while the sunflower and wheat had a weak response to salinity and moderately response for the treated magnetic one. Both germination percentage and rate were improved after irrigation water treated by amagnetic field.Germination percentage and rate were examined in alaboratory experiment to study the impact of water salinity (345, 2000, 4000 ppm) and/or magnetic force (0, 800, 1000 and 2000 Gauss) of different plants (wheat, barley, sorghum, turnip, and sunflower). Field experiments were carried out on the Experimental Farm of Agricultural Production and Research Station (APRS), National Research Centre (NRC), El Nubaria Province, Egypt. The field experiment was a split-plot design. The main plots were magnetic forces treatments. Three magnetic forces treatments were used: zero, 1000 and 2000 Gauss. On the other hand, three salinity