Agira™

Agira™ consists of a hydrolysis tank and an aerobic bioreactor:

• The hydrolysis tank pre-treats the greasy matters in presence of lime before entering the bioreactor.
• The aerobic tank includes a patented foam cleaner and a dynamic mixer. This configuration enhances the biomass temperature (40-50°C) allowing high elimination efficiency in a reduced reactor footprint and low energy consumption.

The elimination efficiency of lipids reaches 70-90% depending on the grease quality and concentration.

Agira™ has a compact design and is perfectly adapted to degrade high loaded greasy effluents.

Operation and Performances

Treatment performances

• Total COD = 80 %
• TSS > 70 %
• Lipids > 90 %

Operating conditions

• Applied charge : 3 to 5 kg HEM / m3.d
• 7,5 to 12,5 kg COD / m3.d
• Average retention time = 45 days
• COD / N / P ratio applied : 200 / 2,5 / 0,75
• No recirculation from bioreactor to hydrolysis tank
• Energy consumption : 280 to 400 Wh / kg COD treated

Type

Two-stage intense aerobic process.

Applications

• Treatment of grease from municipal and agro-food industries wastewaters
• Cesspits content treatment
• Primary sludge stabilization

References:

20 installations in France