抄録
In the middle of 20th century, mine was developed due to industrial revolution in South Korea. As time goes
on, abandoned metal mine was increased steadily, and a lot of tailings has been also abandoned at mine. There are various heavy metals within tailings which can cause the contamination of soil and ground water by diverse environmental factors. Therefore, it is necessary to manage tailings piled up.
Generally, MICP(Micro-biologically Calcite Precipitation) is a microbial process that induces CaCO3 precipitation within the soil and ground water. Microorganism precipitates a CaCO3 to attract various cations including Ca2+ from surrounding environment and binding to their cell membranes. Thus, the waste gypsum and waste oyster shell which are well known for CaCO3 precipitation have been used in this
study.
The purpose of this study is the assessment for heavy metal leaching characteristics from abandoned mine tailings via MICP mechanism using industrial wastes. “H” mine tailings were analyzed as followings; soil texture to analyze particle size distribution, sequential extraction to investigate heavy metal fractions, heavy metal leaching concentration related to retention time.
