Journal
CHEMOSPHERE
Volume 291, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2021.132808
Keywords
Arsenic; Electrodeionization; Breakthrough analysis; Toxic pollutant; Water; Hybrid process
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Arsenic is a harmful pollutant that can cause severe public health effects even in small amounts of water. In this research, electrodeionization was used to remove arsenic ions from groundwater. The findings suggest that electrodeionization can effectively remove arsenic from water and reuse the processed water.
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.
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