Remediation of Contaminated Groundwater: Change of Paradigm for Sustainable Use

Abstract

Groundwater development and use have been increasing in Korea causing frequent occurrences of related hazards such as groundwater level decline, land subsidence, and groundwater contamination. To tackle these groundwater problems, central and local governments have set-up and maintained many groundwater monitoring programs such as the National Groundwater Monitoring Network and the Groundwater Quality Monitoring Network, which collect very valuable data on the overall status of domestic groundwater to aid proper groundwater management. However, several problems mainly related to the remediation of contaminated groundwater remain unresolved. Recently, there have been some incidents related to the contamination of groundwater, and these have drawn the concern of the Korean people. Although groundwater contamination has been investigated in detail, actual groundwater remediation work has not yet been implemented. The remediation of the contaminated groundwater must begin immediately in order to sustain the ecosystem service of clean groundwater and enhance the welfare of the Korean people.

Evaluation of Soil Health by Soil Washing of As and Heavy Metal Contaminated Soils

“…따라서, 국내의 경우 입도분리(physical separation)와 화학적 용출(chemical extraction)을 통해 비소 및 중금속 을 제거하는 토양세척법을 주로 적용하여 정화 사업을 수 행하고 있다 (Lee et al, 2009;Lee et al, 2020a;Han, 2021). 토양세척법에 있어서 산 세척은 오염저감의 주요 정화공 정으로 이러한 산 세척에 관한 연구는 세척액에 대한 비소 및 중금속 제거효율을 평가하고 최적조건을 규명하는 등의 처리공정 효율을 증가시키는 연구 및 오염물질에 대한 존 재형태의 변화를 확인하는 연구들이 대표적이다 (Lee et al, 2008;Lee and Seol, 2010;Kim et al, 2018;Lee et al, 2021) 4). Zn는 0.1M HCl은 1지역 68.7% 및 2지역 18.6%, 0.5M HCl은 1지역 70.6% 및 2지역 33.6%, 1.0M HCl은 1…”