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#### AGIRA™ is a two-stage intense aerobic process for the treatment of grease and greasy sludge.



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 [Overview](#1) 

 

 

## Overview

 

 

 

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.

   ![](/sites/g/files/dvc3496/files/styles/default/public/image/2019/01/agira-schema.jpg.webp?itok=A4Pq8Fb_)   



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***

   ![](/sites/g/files/dvc3496/files/styles/default/public/image/2019/01/Dynamic%20Mixer.JPG.webp?itok=6Vrl0CMB)   



- 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