Effects of Groundwater Chemistry on the Dechlorination of 1,2,3-Trichloropropane by Zero-Valent Zinc(ABSTRACT)

摘要

1,2,3-trichloropropane (TCP) is an emerging contaminant and suspected human carcinogen. TCP is recalcitrant and persistent in groundwater. Contamination of groundwater by TCP may occur at industrial and agricultural sites due to its use as a solvent for degreasing, feedstock for polymer production, and as a precursor to (and impurity in) certain soil fumigants. Recent cases involving the closure of drinking water production wells due to TCP contamination above action levels has provoked a need for effective remediation solutions. After consideration of TCP degradation by substitution, hydrolysis, reduction, and oxidation, we concluded that reduction with zero-valent zinc (ZVZ) is particularly significant because it represents a novel and potentially promising method of affecting relatively fast TCP degradation.