Fate and Remediation of 1,2,3- Trichloropropane

ABSTRACT: 1,2,3-trichloropropane (TCP) has been used in a variety of chemical pro-duction processes, in agricultural chemicals, and as a solvent, resulting in point and non-point source contamination. The chemical properties, and the relatively few studies that have focused on the fate or remediation of TCP suggest that TCP—while very recalci-trant in general—can be degraded by biotic and abiotic processes under favorable conditions, including some of those employed for in situ chemical oxidation (ISCO) and in situ chemical reduction (ISCR). In general, TCP exhibits little or no reaction with mild reductants (including construction-grade Fe0) but is dechlorinated by strong reductants (like palladized nano-Fe0). Similarly, strong oxidants like activated peroxide or persulfate give favorable rates of degradation but a mild oxidant like permanganate does not. Aerobic and anaerobic biodegradation have been observed in laboratory studies, but the rates are comparatively slow, and definitive evidence for biodegradation in the field is still lacking