Utilization rates of trace halogenated organic compounds in acetate‐grown biofilms

Trace concentrations of chlorinated benzenes and chlorinated aliphatics were biotransformed by acetate‐supported biofilms, the former under aerobic conditions and the latter under methanogenic conditions. The rates of transformation of the halogenated organic compounds (secondary substrates) differed from that of acetate, the primary substrate; some were higher, some were lower, and some were similar. Factors affecting the relative rates of utilization in multisubstrate systems are not known.

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