The number of denitrifying bacteria vs nitrate reducers
as deduced from Table 1, showed a substantial increase
(1.13 _+ 0.33 to 2.52 + 0.06) when transferring from a system
without the addition of carbonaceous compounds to one
with a C/N ratio of 0.44 (19.04mg/q ethanol), due to the
rapid growth of the denitrifiers.