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Handbook of Solvents - George Wypych - ChemTech - Ventech!

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1566 K. A. Magrini, et al.<br />

On the last day <strong>of</strong> testing, grab samples were collected in Summa canisters and delivered<br />

to a local analytical laboratory (Air Toxics, Ltd., Folsom, CA) for TO-14 analysis to<br />

confirm the analyses provided by the MTI gas chromatographs and to provide outlet TCE<br />

concentrations that were below our GCs detection limits. Replicate samples were reported<br />

as 13000 ppbv for TCE in inlet air, and 280 and 660 ppbv TCE in the outlet (Table 22.4.1).<br />

This corresponds to 97.8% and 94.9% removal <strong>of</strong> TCE.<br />

The reactor outlet airstream contained most <strong>of</strong> the dichloromethane and carbon tetrachloride<br />

present in the inlet stream. This result was expected, as single carbon haloorganics<br />

do not easily photo-oxidize (Jacoby et. al, 1994). Nearly all <strong>of</strong> the 1,1-dichloroethene and<br />

cis-1,2-dichloroethane were destroyed (destruction efficiencies <strong>of</strong> 97.3% and 99.1% respectively).<br />

This too was expected, as dichlorinated ethanes and ethenes photooxidize almost<br />

as rapidly as TCE.<br />

Small amounts (

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