• Title/Summary/Keyword: 지하수 정화

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Site Application Characteristics of Deep-Site Biopile System for Cleaning Oil-Contaminated Soil/Underground Water (유류오염 토양/지하수 정화를 위해 개발된 DSB(Deep-Site Biopile) System 현장적용특성)

  • Han Seung-Ho;Kong Sung-Ho;Kang Jung-Woo
    • Journal of Soil and Groundwater Environment
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    • v.10 no.2
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    • pp.28-34
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    • 2005

  • The aim of this article is to assess the application characteristics of the site by remediating oil-contaminated area using DSB (Deep-site Biopile) system. In the contaminated area, the soil was composed of penetrable sand and the leaked oil was spread widely (total 7,201 cubic meters) through 2.5 meter deep underground water flow. DSB system was operated for 30 minutes intervals for 24 hours in a day (30 minutes opεration and 30 minutes stop). To check contamination level change in the contaminated area after DSB system was operated, samples were taken. The result from the site shows that BTEX/TPH contamination level was dropped 50% after 30-day operation of DSB system, and that contamination level was dropped below contamination level check standard after 165 days and the remediation was completed. Unlike traditional biological remediation methods DSB system could efficiently process soil and water which were contaminated by high levels of oil compounds.

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Feasibility Study on Acid-enhanced Electrokintic Remediation of Zn and Ni-contaminated Soil (Zn와 Ni로 오염된 토양의 산을 이용한 전처리 및 산순환 동전기 정화의 타당성 연구)

  • Park, Sung-Woo;Cho, Jung-Min;Ryu, Byung-Gon;Kim, Kyung-Jo;Baek, Ki-Tae;Yang, Jung-Seok
    • Journal of Soil and Groundwater Environment
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    • v.13 no.6
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    • pp.17-22
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    • 2008

  • The feasibility of acid-enhanced electrokinetic remediation on zinc and nickel-contaminated soil was investigated in the laboratory. Simple extraction efficiency using 1M HCl was 24% for Zn and 9% for Ni, as a result, the acid washing is not effective to remove Zn and Ni from the soil. The effiencey of normal electrokinetic treatment during 28 days was less than simple soil washing. Catholyte circulation with a strong acid enhanced dramatically the removal of Zn and Ni and pretreatment of soil with acid increased more the removal. Based on the result, acid-enhanced electrokinetic remediation is effective to remove Zn and Ni from the contaminated soil.

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