1 Effects of Magnetic Fields on The Properties of Water 2 Treated by Reversed Osmosis 3

The current study focused on reviewing the rapid growing of using magnetic water in 10 different fields of science and measure the influence of several intensities of magnetization on the 11 chemical and electrical properties of tap water treated by reverse osmosis. The work includes 12 circulation of water for 24 hrs. in magnetic fields of intensity 500, 1000, 1500, and 2000 G. The 13 magnetization of water causes increasing some positive and negative ions in water such as (Mg, K, 14 Na, Cl ̄, Alkaline and SiO2) and decreasing some positive and negative ions (Ca and SO3). In the near 15 future, the application of concepts of sustainability development in civil engineering have the to 16 produce structures in harmony with these concepts through using of high-performance materials 17 with less impacts on the environmental and have low cost. The main application of using magnetic 18 water is improvement the geotechnical properties of soil through precipitation of calcite which 19 increases the bond between soil particles and then strength of soil. 20


Introduction
water. In contrast, compared to both behaviors, it created non-significant effects on Mg 2+ and HCO3¯.

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The deficiency or high cost of potable water pushed framers to use saline water in the irrigation, but 61 the saline water needs to be treated before using in the irrigation. The results of tests showed that salt      The magnetization of water changes its chemical and physical properties and these changes will affect the 134 soil-water-plant-system. The irrigation and leaching of soil with magnetic water will increases the available 135 alkaline such as Na, K, Mg significantly in the depth of plantation. The magnetic susceptibility of nutrients will 136 determine its behavior under magnetic field. Generally, the molecules comprising nonmagnetic water are in loose 137 state, but the molecules clusters together due to attraction force. These forces may help pollutants especially the 138 toxic ones to move inside the water molecule cluster. Also, the large structure of water molecule clusters or toxic 139 molecules can clog the membrane when they pass through the cell membrane [39][40][41]. The magnetization of 140 water will prevent the toxic agents from entering the structure of water, therefor, the magnetic water considered 141 a bio friendly fluid for biomass. Using the magnetic water in agriculture will help to increase the crop yield and 142 benefit to the health of biomass. Also, using magnetic water in irrigation process will improve water quality and 143 increase the productivity of farms. Using magnetic water will help to conserving the fresh water supplies for the

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The pure water as dipolar and associative liquid can alter its intermolecular bonds under the 153 application of magnetic field and transform to a metastable state [43]. The magnetic field will affect stirring. Generally, the magnetic water treatment method is passing water through the device at a 160 certain velocity, where alternating magnetic fields (preferably orthogonal to water flow direction) are 161 created. After such treatment, water loses its ability to deposit hardness salts in the form of scale, and 162 these salts are crystallized as fine sludge easily carried away by the water flow.

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In the present study, a water container made from plastic fiber (acrylic) material. The used pump 164 of water has the properties: power is 25 w, head is 18 m, flow rate is 1000 l/h, and AC220 V/50 Hz) and 165 the provided magnetic fields are (500, 1000, 1500. and 2000 G) with plastic tube of diameter 12 mm.

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The magnetization device of water is supplied for water treatment by reverse osmosis (RO) from 172 local factory. The water treated with reverse osmosis will be referred as reference water for          water reference pass through field magnates increased SiO3 value from 28 %at 500 G, 57% at 1000 G,

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76% at 1500 G and 95% at 2000 G than those of reference treatment.

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The electrical conductivity depends on the content of ions, where the precipitation of silicate will 318 change the electrical conductivity. It is observed decreasing the content of Ca with increasing the 319 intensity of magnetic field which causes increasing the electrical conductivity [56].