Civil Engineering Commons^™

Soil Washing Of Fluorine Contaminated Soil Using Various Washing Solutions, Deok-Hyun Moon, Rae-Hyun Jo, Agamemnon Koutsospyros, Kyung Hoon Cheong, Jeong-Hun Park

Civil Engineering Faculty Publications

Bench-scale soil washing experiments were conducted to remove fluoride from contaminated soils. Five washing solutions including hydrochloric acid (HCl), nitric acid (HNO3), sodium hydroxide (NaOH), sulfuric acid (H2SO4) and tartaric acid (C4H6O6) were tested. The concentration of the washing solutions used ranged from 0.1 M to 3 M with a liquid to solid ratio of 10. The soil washing results showed that the most effective washing solution for the removal of fluoride from contaminated soils was HCl. The highest fluoride removal results of approximately 97% from the contaminated soil were obtained using 3M HCl. The fluoride removal efficiency of the …