Electrochemistry techniques of reducing salinity in water using aerogel carbon electrodes
نوع المنشور
بحث أصيل
  • Shehdeh Jodeh
  • Rachid Salghi
  • Jamal Amarah
  • Ismail Warad
  • S. Samhan
  • Diana Jodeh
  • Belkheir Hammouti
  • Smaail Radi
One of the most environmental friendly technique for desalination where electricity applied instead
of chemicals. Water with different species like anions, metals and other contaminants is introduced
to an electrochemical cell to purify it from contaminants including salt. During polarization, ions
are electrostatically removed from the water and adsorbed in electric double layers at the surfaces of
electrodes. The output of this process is cleaned water without contaminants. The Capacitive
Deionization Technology (CDI) with carbon aerogel considered new and famous technique where
80% of saline water transferred to pure water with low energy consumption, and very simple
method, without producing pollutants like NO X , SO, and other volatile organics. This experiment
based on applying current and the two anions, Na 2+ and Cl-were distributed between the two
electrodes of carbon aerogel which they have high surface area. The absorption of NaCl by the
aerogel carbon electrodes reached more than 50% by varying the experimental parameters like
voltage, pH, concentration, distance between electrodes and flow. The best conditions were using
2V, pH =5, and a 0.4 cm distance between electrodes. When the distance between electrodes
decreased (0.4 cm) the absorption of ions increased due to the formation of electrical double layer
and increasing potential between electrodes. For the best removal results a flow of 80 mL/min was
used. From our results we can conclude that using capacitive desalination technology (CDI)
enhanced the removal of salts from brackish water.
بلد الناشر
نوع المنشور
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