40 CFR Appendix Table 9 to Subpart GGG of Part 63, Default Biorates for Soluble HAP

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Table 9 to Subpart GGG of Part 63 - Default Biorates for Soluble HAP
Compound name Biorate (K1),
L/g MLVSS-hr
Acetonitrile 0.100
Acetophenone 0.538
Diethyl sulfate 0.105
Dimethyl hydrazine(1,1) 0.227
Dimethyl sulfate 0.178
Dinitrotoluene(2,4) 0.784
Dioxane(1,4) 0.393
Ethylene glycol dimethyl ether 0.364
Ethylene glycol monobutyl ether acetate 0.496
Ethylene glycol monomethyl ether acetate 0.159
Isophorone 0.598
Methanol a
Nitrobenzene 2.300
Toluidine (-0) 0.859
Triethylamine 1.064

a For direct dischargers, the default biorate for methanol is 3.5 L/g MLVSS-hr; for indirect dischargers, the default biorate for methanol is 0.2 L/g MLVSS-hr.

[ 66 FR 40137, Aug. 2, 2001]

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