Preparation of Thermal Active Nano-Materials for Application in Water Desalination and Wastewater Treatment, Dielectric Study

Egypt has recently experienced a severe water deficit for a variety of applications. This situation can become worse very soon. Consequently, it is critical to value the non-traditional water supply. The current study aims to prepare a floating membrane using polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC) polymer, and copper oxide (CuO) for water desalination. The possibility of using the resulting membrane to distillate water with brine made using sodium chloride salt was tested. The prepared floating membrane was found to be effective in desalinating water. In addition, CMC/PVA- based composites have been electrically investigated to determine the low delay characteristics of high-frequency signal transmission. Using a wideband dielectric spectrometer and a wide frequency range (10- 1-106 Hz), these composites' permittivity and loss tangent were investigated (BDS). Experimental results reported low permittivity (similar to 4 to 5) and loss tangent (similar to 0.0006 to similar to 0.0009) values. These features would make the composites promising in the high-frequency applications and desalination of saline water.