| Title |
Research on Remediation of Trichloroethylene using Zero Valent Iron Bipolar Packed Bed Electrodes |
| Authors |
박유리(Park, Yu-Ri) ; 신자원(Shin, Ja-Won) ; 박주양(Park, Joo-Yang) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.1B.085 |
| Keywords |
트리클로로에틸렌;투수성 반응벽;영가철;전기화학;복극전해조 trichloroethylene;PRBs;ZVI;electrochemistry;bipolar electrodes |
| Abstract |
Permeable Reactive Barriers (PRBs) using zero valent iron (ZVI, $Fe^0$) is a promising technology for in-situ remediation of trichloroethylene (TCE) forming dense non aqueous phase liquid (DNAPL). The objective of this study is to develop an enhanced treatment method of trichloroethylene-contaminated groundwater using ZVI packed bed with direct current (D.C.). A column experiment was performed to investigate degradation efficiency of TCE that was performed in three different combination of control (only sand), ZVI column (ZVI:sand, packing ratio 1:2(v/v)) and bipolar column (ZVI:sand=1:2(v/v) with electric current) in the test columns. As the results of this study, the degradation efficiency of TCE was improved with simultaneous application of both bipolar column compared to that used ZVI column. Because ZVI particles are isolated and individual particles act like small electrodes. In this experiment, it was indicated a basic material for application of bipolar packed bed as electro-PRBs that was effective degradation of TCE. |