Abstract: An aspirating photochemical odor control system allows odoriferous gases to reside in a wet well or force main (odor source) until gas pressure in the odor source forces the gases out. A check valve admits air into the odor source when pressure in the odor source decreases appreciably below ambient pressure. When pressure in the odor source exceeds ambient pressure, a check valve permits flow of gases from the odor source to a photochemical reaction chamber and solar thermal collector to react with oxidizer generated by UV lamps, before being exhausted to the atmosphere.

Abstract: An ozone-based system and method for eliminating odors from wastewater in a well produces an oxygen-enriched and controllably produces ozone using an ozone generator operably coupled to a programmable logic controller. In sparging mode the system supplies the oxygen enriched gas to the well. In ozonation mode the oxygen-enriched gas is used to produce ozone and the ozone is supplied to the injection port. The PLC reduces the amount of ozone produced by the ozone generator if the ozone measured at the reaction chamber outlet is not less than a setpoint amount. The reaction chamber contains a baffled reticulate interior channel causing gasses flowing therethrough to flow in opposite directions in traveling from the inlet to the outlet of the reaction chamber. The system is devoid of any fan or pump in the reaction chamber.