Advances In MBR: Biological Treatment With Enviroquip And 'Biohydraulics'

At times, treating more flow than any other MBR system in the world, the Delphos plant is the second largest plant in the US in terms of its rated capacity of 6 MGD. Since startup in September 2006, the plant has already been put through its paces and demonstrated its capability to reliably meet permit limits.

Delphos has a sewer system that is 70% combined and 30% separate. This means that 70% of the sewers collect storm water as well as domestic and industrial waste (food processing and laundering). As a result, the new MBR system had to be designed to handle a wide range of waste and hydraulic loading.

Using the concept of biohydraulics, the MBR System was designed to exceed biological treatment objectives over the range of expected operating conditions. Designed using the Storm Master™ configuration, the plant is also equipped with the SymBio® technology, which helps to promote simultaneous nitrification and denitrification (SNdN) in the supplemental aeration zone.