논문 상세보기

나선형패들이 장착된 토양전기분해장치를 이용한 중금속 오염토양 정화에 관한 연구 KCI 등재

A Study on Remediation of Heavy Metal Contaminated Soil using a Soil Electrolysis Apparatus with Spiral Paddle

  • 언어KOR
  • URLhttps://db.koreascholar.com/Article/Detail/365784
서비스가 종료되어 열람이 제한될 수 있습니다.
한국환경과학회지 (Journal of Environmental Science International)
한국환경과학회 (The Korean Environmental Sciences Society)
초록

This study aimed to remove organic matter and heavy metals that could affect the recycling of soils contaminated by heavy metals, by means of electrolysis, carried out simultaneously with the leaching of the soil. To ensure better experimental equipment, a soil electrolysis apparatus, equipped with spiral paddles, was used to agitate the heavy-metal-contaminated soil effectively. The heavy-metal-contaminated soil was electrolyzed by varying the voltage to 5 V(Condition 1), 15 V(Condition 2), and 20 V(Condition 3), under the optimal operating conditions of the electrolysis apparatus, as determined through previous studies. The results showed that the pH of the electrolyte solution and the heavy-metal-contaminated soil, after electrolysis, tended to decrease with an increase in voltage. The highest removal efficiencies of TOC and CODCr were 18.8% and 29.1%, 38.8% and 4.2%, and 33.3% and 50.0%, under conditions 1, 2 and 3, respectively. Heavy metals such as Cd and As were not detected in this experiment. The removal efficiencies of Cu, Pb and Cr were 4.7%, 8.3% and 2.1%, respectively, under Condition 1, while they were 42.9%, 15.2% and 22.1%, respectively, under Condition 2, and 4.7%, 23.0%, and 24.9%, respectively, under Condition 3. These results suggest that varying the voltage with the soil electrolysis apparatus for removing contaminants for the recycling of heavy-metal-contaminated soil allows the selective removal of contaminants. Therefore, the results of this study can be valuable as basic data for future studies on soil remediation.

목차
Abstract
 1. 서 론
 2. 실험재료 및 방법
  2.1. 실험재료
  2.2. 실험장치 및 방법
 3. 결과 및 고찰
  3.1. 중금속 오염토양의 pH 분석결과
  3.2. 중금속 오염토양의 TOC 분석결과
  3.3. 중금속 오염토양의 CODCr 분석결과
  3.4. 금속 오염토양의 중금속 분석결과
 4. 결 론
 REFERENCES
저자
  • 이준희(동아대학교 환경공학과) | Jun-Hee Lee (Department of Environmental Engineering, Dong-A University)
  • 최영익(동아대학교 환경공학과) | Young-Ik Choi (Department of Environmental Engineering, Dong-A University)
  • 정진희(동아대학교 환경공학과) | Jin-Hee Jung (Department of Environmental Engineering, Dong-A University) Corresponding author