Sophia Baker

US Patent:

20210002154, Jan 7, 2021

Filed:

Sep 21, 2020

Appl. No.:

17/027528

Inventors:

- Montreal, CA
John Vorwaller - Salt Lake City UT, US
Tyson Beaman - Murray UT, US
Sophia Baker - Ogden UT, US
Sergio Pino-Jelcic - Salt Lake City UT, US
David Stensel - Mercer Island WA, US

International Classification:

C02F 1/52
C02F 3/02

Abstract:

A continuous flow granular/flocculent sludge wastewater process selects for granule biomass capable of nitrogen and phosphorus removal and controls granule size and concentration of granular and flocculent sludge for optimal nutrient, organic, and solids removal in a smaller footprint. A series of biological process zones lead to a secondary clarifier. Mixed liquor sludge, preferably from an aerobic zone, goes through a classifier or separator processing flow from the aerobic zone, to the secondary clarifier. In a sidestream process that can be included a portion of sludge preferably from an aerobic zone goes through a classifier or separator to selectively produce a granular-rich effluent, and the clarifier may also have a separator to further concentrate granular biomass, most of which is cycled back to an initial multi-stage anaerobic process zone. The anaerobic zone is structured and operated to encourage growth of granules in subsequent process zones.