방사성오염토양 제염을 위한 동전기세정장치 개발

Development of Electrokinetic-Flushing Equipment for a Remediation of Soil Contaminated with Radionuclides

Gye-Nam Kim, Yun-Ho Jung, Jung-Joon Lee, Jei-Kwon Moon, Chong-Hun Jung, Un-Soo Chung

Abstract

This study examined the effect of an electrokinetic-flushing remediation for a soil of a high permeability. The soil was sampled from the site around a research atomic reactor which had high hydro-conductivities due to a high content of sand in the soil. The flow rate of the washing reagent was fast at the beginning but it was reduced as time lapsed. In the case of using citric acid as a washing reagent, the flow rate was fastest, 78.7 ml/day. The removal efficiencies of and from a soil cell with acetic acid were the highest, which were 95.2% and 84.2% respectively. The soil waste-solution volume generated from the electrokinetic remediation was reduced to about 1/20 of that from the soil washing remediation. Meanwhile, the electrokinetic-flushing method enhanced the removal efficiencies of and from the soil by about 6% and 2% respectively, compared to those by the electrokinetic method. Consequently, it was found that the electrokinetic-flushing method was more effective for the remediation of a soil with a high permeability.

Key Words : Electrokinetic-flushing, Cobalt, Cesium, High permeability soil, Removal efficiency 동전기세정, 코발트, 세슘, 높은 투수성 토양, 제거효율

Reference

JNFCWT

Online Submission

Korean Radioactive
Waste Society (KRS)

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