Pipeline flash reactor for municipal wastewater treatment

Municipal wastewater plants typically have to employ some method of treatment to increase dissolved oxygen prior to final discharge into receiving waters. Mazzei's Pipeline Flash Reactor provides a new technology for rapid oxygen transfer within a compact footprint, the company says. The system utilises a small sidestream passed through a Mazzei injector to draw in ambient air or concentrated oxygen. The aerated sidestream is then delivered to the pipeline flash reactor where it aggressively mixes with the main flow, uniformly transferring the oxygen in the effluent pipeline.

Where space is an issue, such as in existing built-out urban areas, the PFR eliminates the need for post-treatment cascading systems or diffuser basins required by other technologies. The PFR can also be utilized for the dissolution of oxygen gas in systems with high dissolved oxygen requirements.