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Soil & Groundwater Newsletter December 30, 2010 |
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| This Week“s Featured News Stories |
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Taiwan Leads Asia in Contaminated Site Remediation
TAIPEI, Taiwan--(BUSINESS WIRE)-- Being the first Asian country to implement the Soil and Groundwater Remediation Act, Taiwan has held the leading position in Asia with many investigations and remediation techniques accumulated since the act was promulgated in February 2000, said Hong-de Tsai, executive secretary of Soil and Groundwater Remediation Fund Management Board under the Environmental Protection Administration (EPA). Tsai noted in an interview that because Taiwan is small and densely populated, it must have active planning of land use and effectively repair, restore and reuse contaminated ... |
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USACE integrates fracturing and iron/carbon injections at Colorado site
The U.S. Army Corps of Engineers (USACE) performed a large-scale pilot test in 2009 for remediating TCE-contaminated groundwater at the "Atlas 12" formerly used defense site. Hydraulic fracturing was conducted to optimize emplacement of a zero-valent micro-iron/complex carbon amendment that chemically and biologically reduces contaminants in bedrock. Three-dimensional (3-D) mapping was used to monitor the amendment`s subsurface pathways and evaluate its in situ performance. Nine months after fracturing and injections, changes in volume and concentration-weighted averages estimated an 82% TCE mass ... |
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