Compact unit for biological treatment of wastewater using granular activated sludge.
GRASS® allows the production of stable granular activated sludge in biological tanks of any shape. GRASS® is therefore suitable for new plant construction as well as for revamping.
Curious to know more? Read on!
The granules are aggregates of bacteria with high purifying performances that agglomerate to form “beads” whose settling speed is much higher than the classical flocs of an activated sludge.
The granules GRASS® are selected and their growth is promoted by modifying the classical phases of an SBR. No reagents or seeding with an existing granular slurry is required.
Initially designed for effluents from the food industry, it is also very well suited for effluents from the wood industry as well as the return juices from anaerobic digesters, but also for normally concentrated urban water.
We offer GRASS® technology to customers who want to optimize the operation and operating costs of their biological treatment plant.
Indeed, the technology GRASS® allows to :
- increase the treatment capacity of a wastewater treatment plant
- increase the removal of certain pollutants (N and P)
- eradicate filamentous bacteria and considerably increase the settling speed of the biology.
The process also makes water treatment less energy intensive. A 30% reduction of your energy consumption is possible!
GRASS® technology secures the performance of a traditional SBR and provides significant savings on capital (CAPEX) and operating (OPEX) costs.
With this technology, our customers can :
- Significant savings on the sludge dewatering process (better dryness, less volume to be evacuated with less reagent);
- Treat more pollution in a given volume (up to 5 x more pollution treated in a given volume) or treat the same pollution in a smaller volume (up to 5 x smaller);
- Avoiding filamentous bacteria proliferation episodes without adding reagents;
- Improve and secure the quality of the discharge significantly (COD, SS, N and P), even in case of temporary pollution overload;
- And therefore save on the tax for industrial water discharge;
- To have a superior quality of treated water facilitating and reducing the costs of re-use of water.
To know if you can easily develop a granular biology on your effluent, we can carry out a diagnosis of the latter. We realize 4 types of them:
Silver = Effluent characterization
Gold = SILVER + biodegradability test
Platinium = GOLD + pilot test in
laboratory for 2 to 3 months
Diamond = GOLD + pilot test on site with a container for 4 to 6 months
