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Design Scheme to Develop Integrated Remediation Technology: Case Study of Integration of Soil Flushing and Pneumatic Fracturing for Metal Contaminated Soil  

Chung, Doug-Young (Department of Bioenvironmental Chemistry, Chungnam National University)
Yang, Jae-E. (Division of Biological Environment, Kangwon National University)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.39, no.1, 2006 , pp. 29-37 More about this Journal
Abstract
In remediation of the contaminated soil, it requires to select at least more than two remediation technologies depending on the fate and transport phenomena through complicated reactions in soil matrix. Therefore, methodologies related to develop the integrated remediation technology were reviewed for agricultural soils contaminated with heavy metals. Pneumatic fracturing is necessary to implement deficiency because soil washing is not effective to remove heavy metals in the subsurface soil. But it needs to evaluate the characteristics such as essential data and factors of designated technology in order to effectively apply them in the site. In the remediation site, the important soil physical and chemical factors to be considered are hydrology, porosity, soil texture and structure, types and concentrations of the contaminants, and fate and its transport properties. However, the integrated technology can be restrictive by advective flux in the area which remediation is highly effective although both soil washing and pneumatic fracturing were applied simultaneously in the site. Therefore, we need to understand flow pathways of the target contaminants in the subsurface soils, that includes kinetic desorption and flux, predictive simulation modeling, and complicated reaction in heterogenous soil.
Keywords
Integrated remediation; Soil washing; Pneumatic fracturing; Heavy metals;
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