Recomendações

Mechanized mixer for flash mixing (Aquaflash) and flocculation (Aquafloc)Tablet calcium hypochlorite Activated sludge bioreactor Oxygen flow

Tanque de aeração: oxigênio a fornecer (ABNT 12209)

Without nitrification

With nitrification

For UASB

Input data

Concentration of BOD

Upstream flow

Output data

Oxygen mass

Description

Given the influent flow and BOD concentration, finds the supplying mass oxygen flow. Three possibilities are available:

The activated sludge system will not perform the sewage nitrification (without nitrification);
The activated sludge system will perform the sewage nitrification (with nitrification);
The activated sludge system will treat the UASB reactors effluent (for UASB).

aeration tank

References

Associação Brasileira de Normas Técnicas - ABNT. NBR - 12.209. Elaboração de projetos hidráulico-sanitários de estações de tratamento de esgotos sanitários. Rio de Janeiro: ABNT, 2011.