Continuous electrodeionization on the removal of toxic pollutant from aqueous solution.

Abstract Arsenic is among the most harmful pollutants and can create severe public health effects from such a small volume of water. Electrodeionization was used to eradicate arsenic ions from groundwater in this research. Electrodeionization system incorporates hybrid electro dialysis/ion exchange to remove and concentrate Arsenic ions from water, then reuses the processed water. The findings indicate that Electrodeionization will remove arsenic from liquids at intensities varies from 5 to 25 ppm in batch recirculation mode and 5–15 ppm in continuous column analysis. Although the device demonstrated the maximum ion percentage removal, of about 100 percent, when operated at a low voltage range from 5 to 20 V. A number of column studies were conducted to establish the breakthrough curves with concentrations ranging from 5 to 15 ppm, applied voltages ranging from 5 to 20 V, and flow rates ranging from 5 to 20 mL/min. For the present work, Arsenic was eliminated up to 98.8 percent in the trials reported here, with energy usage in the Electrodeionization unit varying around 3.88 and 60.7 kW h per kilogram of removed arsenic. This demonstrates the application's ability and productivity in removing Arsenic from aqueous solutions.