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Start Over Author "Liu, Yuan Yuan" Journal applied mechanics and materials
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25. Fe0/Zn0 PRB Technology for the Remediation of PCBs Contaminated Groundwater

Author

Du, Jun, Liu, Yuan Yuan, Zhang, Xue Qing, Qiu, Ming Ying, Zhang, Lan Ying, and Fan, Ya Nan

Abstract

The vast majority of PRB currently in use utilize zero valent iron (ZVI) as the reactive medium. In this paper, three laboratory columns were set up and operated under conditions simulating those anticipated in the groundwater to investigate the feasibility and efficiency of the enhanced Fe0 PRB for the remediation of the PCBs contaminated groundwater. Operating under 10℃ and an effective porosity of 61% to 67% and infiltration velocity of groundwater of 0.7 to 0.8m•d-1, the average iron concentration of effluent was 0.241mg•L-1, 0.129mg•L-1 and 0.201mg•L-1, respectively, and the average dechlorination efficiency reached 49.6%, 72.6% and 58.6%, respectively, the Fe0/Zn0 based columns can accomplish 94% of PCBs removal and pH value raised from 6.87 to 10.2. Comprehensive consideration suggested that Fe0/Zn0 based PRB technology is feasible for the remediation of PCBs contaminated groundwater.

Published
2013
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