Degradation of chlorinated aromatic compounds by Mackinawite with transition metals

Jeongyun Choi, Rheo B. Lamorena, Shang Gyoo Shim, Woojin Lee

Research output: Contribution to journalConference articlepeer-review


Mackinawite has effectively transformed chlorinated aliphatic hydrocarbons such as perchloroethylene, trichloroethylene, hexachloroethane, and trichloroethane to less chlorinated compounds. The reductive dechlorination of 1,2-dichlorobenzene (1,2-DCB) and 2,4-dichlorophenol (2,4-DCP) by mackinawite was studied. Because the reaction kinetics by mackinawite was not fast enough to be applied to the treatment of groundwater and soil contaminated with 1,2-DCB and 2,4-DCP, The effect of transition metal addition on the reduction kinetics of 1,2-DCB and 2,4-DCP by mackinawite was evaluated so that an effective method can be developed to enhance the reactivity of mackinawite to treat the contaminated groundwater and soil. Four transition metals (Co(II), Cu(II), Ni(II) and Fe(II)) were selected as potential candidate additives and the effect of transition metal on the reductive dechlorination of chlorinated aromatics were determined by comparing their kinetic rate constants to those obtained from controls. The degradation kinetics followed the pseudo first-order rate law. This is an abstract of a paper presented at the 231st ACS National Meeting (Atlanta, GA 3/26-30/2006).

Original languageEnglish
Pages (from-to)700-703
Number of pages4
JournalACS, Division of Environmental Chemistry - Preprints of Extended Abstracts
Issue number1
Publication statusPublished - 2006
Event231st ACS National Meeting, 2006 - Atlanta, GA, United States
Duration: Mar 26 2006Mar 30 2006

ASJC Scopus subject areas

  • General Energy


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