Soil washing of fluorine contaminated soil using various washing solutions

Deok Hyun Moon, Raehyun Jo, Agamemnon Koutsospyros, Kyung Hoon Cheong, Jeong Hun Park

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

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 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 3 M HCl. The fluoride removal efficiency of the washing solution increases in the following order: C4H6O6 < NaOH < H2SO4 < HNO3 < HCl.

Original languageEnglish
Pages (from-to)334-339
Number of pages6
JournalBulletin of Environmental Contamination and Toxicology
Volume94
Issue number3
DOIs
StatePublished - Mar 2015

Keywords

  • Acid
  • Contaminated soil
  • Fluoride
  • Fluorine
  • HCl
  • Soil washing

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