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Handbook of Solvents - George Wypych - ChemTech - Ventech!

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17.2 Fate-based management 1165<br />

break through the liner in 30 years. Under these conditions, approximately 131,720<br />

L/year/acre <strong>of</strong> leachate would seep through the liner. The assumptions used in deriving this<br />

flow estimate were summarized in Roy et al. 1<br />

Table 17.2.1. The six groups <strong>of</strong> solvents discussed in this section, their<br />

corresponding Maximum Permissible Concentrations (MPC), the largest reported<br />

concentrations in leachate (LC), and the assigned half-lives from Roy et al. 1<br />

MPC, μg/L LC, mg/L Half-life, years<br />

Alcohols<br />

n-Butyl alcohol 2,070 1,000 5<br />

Isobutyl alcohol 2,070 1,000 5<br />

Methanol<br />

Benzene Derivatives<br />

3,600 42.4 5<br />

Benzene 1.6 7.37 20<br />

Chlorobenzene 488 4.62 20<br />

o-Cresol 304 0.21 20<br />

o-Dichlorobenzene 400 0.67 50<br />

Ethylbenzene 1,400 10.1 10<br />

Nitrobenzene 19,800 0.74 20<br />

Toluene 14,300 100 10<br />

o-Xylene<br />

Chlorinated Aliphatic Hydrocarbons<br />

14,300 19.7 10<br />

Carbon tetrachloride 0.4 25.0 50<br />

Dichloromethane 0.19 430 20<br />

Tetrachloroethylene 0.80 8.20 20<br />

1,1,1-Trichloroethane 6.00 590 50<br />

Trichloroethylene<br />

Chlorinated Fluorocarbons<br />

2.70 260 20<br />

Trichlor<strong>of</strong>luoromethane (F-11) 0.19 0.14 50<br />

1,1,2,2-Tetrachloro-1,2-difluoroethane ( F-112) 0.19 120 50<br />

1,1,2-Trichloro-1,2,2-trifluoroethane (F-113) 0.19 170 stable<br />

1,2,-Dichlorotetrafluoroethane (F-114)<br />

Ketones<br />

0.19 130 stable<br />

Acetone 35,000 62 5<br />

Cyclohexanone 3,500 1,000 5<br />

Methyl ethyl ketone 30,000 53.0 5

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