Our mixing systems are based on the aspiration of biogas from the digester dome and its introduction to the bottom of the digester in injection points which are individually fed sequentially. This ensures effective and uniform sludge mixing.
Main Advantages
- Over 50% energy savings compared to other mixing technologies
- Simple and cost-effective maintenance
- No moving parts in the digester and no corrosion
- No surface crust formation on sludge
- Reduced sludge sedimentation
THE CHALLENGE
The plant in question was using recirculation pumps in service for 12 hours a day with an energy consumption of 357 kW/h per day. We were tasked with dramatically reducing energy consumption without compromising mixing effectiveness.
THE SOLUTION
Relying on our advice and expertise, the client chose to upgrade the plant with a sequential gas mixing system with a MAPRO RFL 40 G compressor, which feeds different injection points operating 8 hours a day, with a total energy consumption of 136 kW/h per day.
RESULTS
Following the mixing system upgrade, energy consumption was reduced by 221 kW/h per day, equivalent to approximately 81,000 kW/h year.
Simplicity, effectiveness and energy saving
Sequential Gas Mixing Systems
Sequential Gas Mixing System Effect
The video was made during the biogas compressor commissioning and therefore before the digester was closed
