Stability of multi-permeable reactive barriers for long term removal of mixed contaminants

Jai Young Lee, Kui Jae Lee, Sun Young Youm, Mi Ran Lee, Seralathan Kamala-Kannan, Byung Taek Oh

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The Permeable Reactive Barriers (PRBs) are relatively simple, promising technology for groundwater remediation. A PRBs consisting of two reactive barriers (zero valent iron-barrier and bio-barrier) were designed to evaluate the application and feasibility of the barriers for the removal of wide range of pollutants from synthetic water. After 470 days of Multi-PRBs column operation, the pH level in the water sample is increased from 4 to 7, whereas the oxidation reduction potential (ORP) is decreased to -180 mV. Trichloroethylene (TCE), heavy metals, and nitrate were completely removed in the zero valent iron-barrier. Ammonium produced during nitrate reduction is removed in the biologically reactive zone of the column. The results of the present study suggest that Multi-PRBs system is an effective alternate method to confine wide range of pollutants from contaminated groundwater.

Original languageEnglish
Pages (from-to)250-254
Number of pages5
JournalBulletin of Environmental Contamination and Toxicology
Issue number2
StatePublished - Feb 2010


  • Bio-barrier
  • Groundwater
  • Multi-PRBs
  • Zero-valent iron


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