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ISSN : 1738-1894(Print)
ISSN : 2288-5471(Online)
ISSN : 2288-5471(Online)
방사성토양 복원을 위한 수직형 동전기-세정장치의 최적제염조건 도출
Optimum Remediation Conditions of Vertical Electrokinetic-Flushing Equipment to Decontaminate a Radioactive Soil
Abstract
Vertical electrokintic-flushing remediation equipment was developed for the remediation of a radioactive soil near nuclear facilities. An optimum reagent was selected to decontaminate the radioactive soil near nuclear facilities with the developed vertical electrokintic-flushing remediation equipment, and the optimum remediation conditions were established to obtain a higher remediation efficiency. Namely, acetic acid was selected as an optimum reagent due to its higher remediation efficiency. When the electrokinetic remediation and the electrokinetic-flushing remediation results were compared, the removal efficiency of 4.6 % and the soil waste solution volume of 1.5 times were increased in the electrokinetic remediation. When the potential gradient within an electrokinetic soil cell was increased by two times (4.0 V/cm), the removal efficiencies of Co2+ and Cs+ were increased by about 4.3%(Co2+ : 98.9%, Cs+ : 96.7%). Also, when the reagent concentration was increased from 0.01 M to 0.05M, the removal efficiency of Co2+ was increased but that of Cs+ was decreased. Therefore, the optimum remediation conditions were that the acetic concentration was 0.01M∼0.05M, the potential gredient was 4 V/cm, the injection of reagent 2.4 ml/g, and the remediation period was 20days.
Vertical electrokinetic-flushing, Cobalt, Cesium, Radioactive soil, Removal efficiency, 수직형 동전기세정, 코발트, 세슘, 방사성토양, 제거효율
Reference
JNFCWT
Online Submission
Korean Radioactive
Waste Society (KRS)
Editorial Office
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