A system and method for inhibiting and precluding the buildup and offgas
of offensive odors and corrosive sulfuric acid in wastewater in a variety
of locations in a sewage system through the use of superoxygenation. The
system comprises an oxygenator having an inverse conical section for a
downward flow of oxygen gas injected into the sewage stream prior to
entering the oxygenator. In one embodiment, the system is inserted
directly into the main sewage stream, while in another embodiment, the
system is used to treat a sidestream from the main sewage stream.